Gastrointestinal-Pancreas (GI-P) Pathology Research Group

Publications 2019

Amrutkar M, Aasrum M, Verbeke CS, Gladhaug IP (2019)
Secretion of fibronectin by human pancreatic stellate cells promotes chemoresistance to gemcitabine in pancreatic cancer cells
BMC Cancer, 19 (1), 596
DOI 10.1186/s12885-019-5803-1, PubMed 31208372

Kleive D, Labori KJ, Line PD, Gladhaug IP, Verbeke CS (2019)
Pancreatoduodenectomy with venous resection for ductal adenocarcinoma rarely achieves complete (R0) resection
HPB (Oxford) (in press)
DOI 10.1016/j.hpb.2019.05.005, PubMed 31186199

Lenggenhager D, Amrutkar M, Sántha P, Aasrum M, Löhr JM, Gladhaug IP, Verbeke CS (2019)
Commonly Used Pancreatic Stellate Cell Cultures Differ Phenotypically and in Their Interactions with Pancreatic Cancer Cells
Cells, 8 (1)
DOI 10.3390/cells8010023, PubMed 30621293

Misra S, Moro CF, Del Chiaro M, Pouso S, Sebestyén A, Löhr M, Björnstedt M, Verbeke CS (2019)
Ex vivo organotypic culture system of precision-cut slices of human pancreatic ductal adenocarcinoma
Sci Rep, 9 (1), 2133
DOI 10.1038/s41598-019-38603-w, PubMed 30765891

Vujasinovic M, Pozzi Mucelli RM, Valente R, Verbeke CS, Haas SL, Löhr JM (2019)
Kidney Involvement in Patients with Type 1 Autoimmune Pancreatitis
J Clin Med, 8 (2)
DOI 10.3390/jcm8020258, PubMed 30781677

Publications 2018

De Angelis PM, Schjølberg AR, Hughes JB, Huitfeldt HS, Norheim Andersen S, Østvold AC (2018)
Nondysplastic Ulcerative Colitis Has High Levels of the Homologous Recombination Repair Protein NUCKS1 and Low Levels of the DNA Damage Marker Gamma-H2AX
Inflamm Bowel Dis, 24 (3), 593-600
DOI 10.1093/ibd/izx071, PubMed 29462394

de la Rosa Carrillo D, Vindenes H, Kinsler VA, Rønnestad A, Ringstad G, Müller LO, Tafjord S, Tønseth KA, Kvamme B, Clausen OPF (2018)
Aggressive melanoma in an infant with congenital melanocytic nevus syndrome and multiple, NRAS and BRAF mutation-negative nodules
Pediatr Dermatol, 35 (5), e281-e285
DOI 10.1111/pde.13595, PubMed 29999207

Del Chiaro M, Rangelova E, Halimi A, Ateeb Z, Scandavini C, Valente R, Segersvärd R, Arnelo U, Verbeke CS (2018)
Pancreatectomy with arterial resection is superior to palliation in patients with borderline resectable or locally advanced pancreatic cancer
HPB (Oxford), 21 (2), 219-225
DOI 10.1016/j.hpb.2018.07.017, PubMed 30093144

Holme Ø, Løberg M, Kalager M, Bretthauer M, Hernán MA, Aas E, Eide TJ, Skovlund E, Lekven J, Schneede J, Tveit KM, Vatn M, Ursin G, Hoff G, NORCCAP Study Group† (2018)
Long-Term Effectiveness of Sigmoidoscopy Screening on Colorectal Cancer Incidence and Mortality in Women and Men: A Randomized Trial
Ann Intern Med, 168 (11), 775-782
DOI 10.7326/M17-1441, PubMed 29710125

Hugenschmidt H, Labori KJ, Brunborg C, Verbeke CS, Seeberg LT, Schirmer CB, Renolen A, Borgen EF, Naume B, Wiedswang G (2018)
Circulating Tumor Cells are an Independent Predictor of Shorter Survival in Patients Undergoing Resection for Pancreatic and Periampullary Adenocarcinoma
Ann Surg (in press)
DOI 10.1097/SLA.0000000000003035, PubMed 30216219

Pollheimer MJ, Racedo S, Mikels-Vigdal A, Marshall D, Bowlus C, Lackner C, Madl T, Karlsen TH, Hov JR, Lyman SK, Adamkewicz J, Smith V, Moreau E, Zollner G, Eide TJ, Stojakovic T, Scharnagl H, Gruber HJ, Stauber RE, Trauner M, Fickert P (2018)
Lysyl oxidase-like protein 2 (LOXL2) modulates barrier function in cholangiocytes in cholestasis
J Hepatol, 69 (2), 368-377
DOI 10.1016/j.jhep.2018.04.009, PubMed 29709678

Roscher I, Falk RS, Vos L, Clausen OPF, Helsing P, Gjersvik P, Robsahm TE (2018)
Notice of Retraction and Replacement: Roscher et al. Validating 4 Staging Systems for Cutaneous Squamous Cell Carcinoma Using Population-Based Data: A Nested Case-Control Study. JAMA Dermatol. 2018;154(4):428-434
JAMA Dermatol, 154 (12), 1488-1489
DOI 10.1001/jamadermatol.2018.4023, PubMed 30419111

Roscher I, Falk RS, Vos L, Clausen OPF, Helsing P, Gjersvik P, Robsahm TE (2018)
Validating 4 Staging Systems for Cutaneous Squamous Cell Carcinoma Using Population-Based Data: A Nested Case-Control Study
JAMA Dermatol, 154 (4), 428-434
DOI 10.1001/jamadermatol.2017.6428, PubMed 29516080

Vujasinovic M, Valente R, Maier P, von Beckerath V, Haas SL, Arnelo U, Del Chiaro M, Kartalis N, Pozzi-Mucelli RM, Fernandez-Moro C, Verbeke CS, Yu J, Ye W, Löhr JM (2018)
Diagnosis, treatment and long-term outcome of autoimmune pancreatitis in Sweden
Pancreatology, 18 (8), 900-904
DOI 10.1016/j.pan.2018.09.003, PubMed 30236651

Publications 2017

Del Chiaro M, Verbeke C (2017)
Intraductal papillary mucinous neoplasms of the pancreas: reporting clinically relevant features
Histopathology, 70 (6), 850-860
DOI 10.1111/his.13131, PubMed 27878841

Gjelberg HK, Hoem D, Verbeke CS, Eide J, Cooper JG, Molven A (2017)
Hypoglycemia and decreased insulin requirement caused by malignant insulinoma in a type 1 diabetic patient: when the hoof beats are from a zebra, not a horse
Clin Case Rep, 5 (6), 761-768
DOI 10.1002/ccr3.927, PubMed 28588806

Jabbar KS, Arike L, Verbeke CS, Sadik R, Hansson GC (2017)
Highly Accurate Identification of Cystic Precursor Lesions of Pancreatic Cancer Through Targeted Mass Spectrometry: A Phase IIc Diagnostic Study
J Clin Oncol, 36 (4), 367-375
DOI 10.1200/JCO.2017.73.7288, PubMed 29166170

Kleive D, Berstad AE, Sahakyan MA, Verbeke CS, Naper C, Haugvik SP, Gladhaug IP, Line PD, Labori KJ (2017)
Portal vein reconstruction using primary anastomosis or venous interposition allograft in pancreatic surgery
J Vasc Surg Venous Lymphat Disord, 6 (1), 66-74
DOI 10.1016/j.jvsv.2017.09.003, PubMed 29128301

Malgerud L, Lindberg J, Wirta V, Gustafsson-Liljefors M, Karimi M, Moro CF, Stecker K, Picker A, Huelsewig C, Stein M, Bohnert R, Del Chiaro M, Haas SL, Heuchel RL, Permert J, Maeurer MJ, Brock S, Verbeke CS, Engstrand L, Jackson DB, Grönberg H, Löhr JM (2017)
Bioinformatory-assisted analysis of next-generation sequencing data for precision medicine in pancreatic cancer
Mol Oncol, 11 (10), 1413-1429
DOI 10.1002/1878-0261.12108, PubMed 28675654

Sahakyan MA, Haugvik SP, Røsok BI, Kazaryan AM, Ignjatovic D, Buanes T, Labori KJ, Verbeke CS, Edwin B (2017)
Can standardized pathology examination increase the lymph node yield following laparoscopic distal pancreatectomy for ductal adenocarcinoma?
HPB (Oxford), 20 (2), 175-181
DOI 10.1016/j.hpb.2017.08.038, PubMed 28943397

Seleznik GM, Reding T, Peter L, Gupta A, Steiner SG, Sonda S, Verbeke CS, Dejardin E, Khatkov I, Segerer S, Heikenwalder M, Graf R (2017)
Development of autoimmune pancreatitis is independent of CDKN1A/p21-mediated pancreatic inflammation
Gut, 67 (9), 1663-1673
DOI 10.1136/gutjnl-2016-313458, PubMed 28774888

Strell C, Norberg KJ, Mezheyeuski A, Schnittert J, Kuninty PR, Moro CF, Paulsson J, Schultz NA, Calatayud D, Löhr JM, Frings O, Verbeke CS, Heuchel RL, Prakash J, Johansen JS, Östman A (2017)
Stroma-regulated HMGA2 is an independent prognostic marker in PDAC and AAC
Br J Cancer, 117 (1), 65-77
DOI 10.1038/bjc.2017.140, PubMed 28524160

Publications 2016

Haugvik SP, Kaemmerer D, Gaujoux S, Labori KJ, Verbeke CS, Gladhaug IP (2016)
Pathology and Surgical Treatment of High-Grade Pancreatic Neuroendocrine Carcinoma: an Evolving Landscape
Curr Oncol Rep, 18 (5), 28
DOI 10.1007/s11912-016-0518-9, PubMed 26984415

Henriksen EK, Jørgensen KK, Kaveh F, Holm K, Hamm D, Olweus J, Melum E, Chung BK, Eide TJ, Lundin KE, Boberg KM, Karlsen TH, Hirschfield GM, Liaskou E (2016)
Gut and liver T-cells of common clonal origin in primary sclerosing cholangitis-inflammatory bowel disease
J Hepatol, 66 (1), 116-122
DOI 10.1016/j.jhep.2016.09.002, PubMed 27647428

Joshi S, Schjølberg AR, Ekstrøm PO, De Angelis PM, Zucknick M, Andersen SN, Clausen OP (2016)
Tp53/p53 status in keratoacanthomas
J Cutan Pathol, 43 (7), 571-8
DOI 10.1111/cup.12713, PubMed 27020606

Jørgensen SF, Reims HM, Frydenlund D, Holm K, Paulsen V, Michelsen AE, Jørgensen KK, Osnes LT, Bratlie J, Eide TJ, Dahl CP, Holter E, Tronstad RR, Hanevik K, Brattbakk HR, Kaveh F, Fiskerstrand T, Kran AB, Ueland T, Karlsen TH, Aukrust P, Lundin KE, Fevang B (2016)
A Cross-Sectional Study of the Prevalence of Gastrointestinal Symptoms and Pathology in Patients With Common Variable Immunodeficiency
Am J Gastroenterol, 111 (10), 1467-1475
DOI 10.1038/ajg.2016.329, PubMed 27527747

Kleive D, Berstad AE, Verbeke CS, Haugvik SP, Gladhaug IP, Line PD, Labori KJ (2016)
Cold-stored cadaveric venous allograft for superior mesenteric/portal vein reconstruction during pancreatic surgery
HPB (Oxford), 18 (7), 615-22
DOI 10.1016/j.hpb.2016.05.010, PubMed 27346143

Lorentzen JA, Grzyb K, De Angelis PM, Hoff G, Eide TJ, Andresen PA (2016)
Oncogene Mutations in Colorectal Polyps Identified in the Norwegian Colorectal Cancer Prevention (NORCCAP) Screening Study
Clin Med Insights Pathol, 9, 19-28
DOI 10.4137/CPath.s40143, PubMed 27656095

Löhr JM, Karimi M, Omazic B, Kartalis N, Verbeke CS, Berkenstam A, Frödin JE (2016)
A phase I dose escalation trial of AXP107-11, a novel multi-component crystalline form of genistein, in combination with gemcitabine in chemotherapy-naive patients with unresectable pancreatic cancer
Pancreatology, 16 (4), 640-5
DOI 10.1016/j.pan.2016.05.002, PubMed 27234064

Tjomsland V, Pomianowska E, Aasrum M, Sandnes D, Verbeke CS, Gladhaug IP (2016)
Profile of MMP and TIMP Expression in Human Pancreatic Stellate Cells: Regulation by IL-1α and TGFβ and Implications for Migration of Pancreatic Cancer Cells
Neoplasia, 18 (7), 447-56
DOI 10.1016/j.neo.2016.06.003, PubMed 27435927

Verbeke CS, Gladhaug IP (2016)
Dissection of Pancreatic Resection Specimens
Surg Pathol Clin, 9 (4), 523-538
DOI 10.1016/j.path.2016.05.001, PubMed 27926357

Publications 2015

Andersen IM, Fosby B, Boberg KM, Clausen OP, Jebsen P, Melum E, Line PD, Foss A, Schrumpf E, Karlsen TH (2015)
Indications and Outcomes in Liver Transplantation in Patients With Primary Sclerosing Cholangitis in Norway
Transplant Direct, 1 (9), e39
DOI 10.1097/TXD.0000000000000548, PubMed 27500239

Andresen K, Boberg KM, Vedeld HM, Honne H, Jebsen P, Hektoen M, Wadsworth CA, Clausen OP, Lundin KE, Paulsen V, Foss A, Mathisen Ø, Aabakken L, Schrumpf E, Lothe RA, Lind GE (2015)
Four DNA methylation biomarkers in biliary brush samples accurately identify the presence of cholangiocarcinoma
Hepatology, 61 (5), 1651-9
DOI 10.1002/hep.27707, PubMed 25644509

Del Chiaro M, Verbeke CS, Kartalis N, Pozzi Mucelli R, Gustafsson P, Hansson J, Haas SL, Segersvärd R, Andren-Sandberg Å, Löhr JM (2015)
Short-term Results of a Magnetic Resonance Imaging-Based Swedish Screening Program for Individuals at Risk for Pancreatic Cancer
JAMA Surg, 150 (6), 512-8
DOI 10.1001/jamasurg.2014.3852, PubMed 25853369

Labori KJ, Katz MH, Tzeng CW, Bjørnbeth BA, Cvancarova M, Edwin B, Kure EH, Eide TJ, Dueland S, Buanes T, Gladhaug IP (2015)
Impact of early disease progression and surgical complications on adjuvant chemotherapy completion rates and survival in patients undergoing the surgery first approach for resectable pancreatic ductal adenocarcinoma - A population-based cohort study
Acta Oncol, 55 (3), 265-77
DOI 10.3109/0284186X.2015.1068445, PubMed 26213211

Labori KJ, Verbeke CS, Gladhaug IP (2015)
Information needs among patients and a surveillance strategy after surgery for pancreatic and periampullary cancer
HPB (Oxford), 17 (7), 659
DOI 10.1111/hpb.12411, PubMed 25776256

Law MH, Bishop DT, Lee JE, Brossard M, Martin NG, Moses EK, Song F, Barrett JH, Kumar R, Easton DF, Pharoah PDP, Swerdlow AJ, Kypreou KP, Taylor JC, Harland M, Randerson-Moor J, Akslen LA, Andresen PA, Avril MF, Azizi E, Scarrà GB, Brown KM, Dębniak T, Duffy DL, Elder DE et al. (2015)
Genome-wide meta-analysis identifies five new susceptibility loci for cutaneous malignant melanoma
Nat Genet, 47 (9), 987-995
DOI 10.1038/ng.3373, PubMed 26237428

Löhr JM, Lönnebro R, Stigliano S, Haas SL, Swahn F, Enochsson L, Noel R, Segersvärd R, Del Chiaro M, Verbeke CS, Arnelo U (2015)
Outcome of probe-based confocal laser endomicroscopy (pCLE) during endoscopic retrograde cholangiopancreatography: A single-center prospective study in 45 patients
United European Gastroenterol J, 3 (6), 551-60
DOI 10.1177/2050640615579806, PubMed 26668748

Schrumpf E, Tan C, Karlsen TH, Sponheim J, Björkström NK, Sundnes O, Alfsnes K, Kaser A, Jefferson DM, Ueno Y, Eide TJ, Haraldsen G, Zeissig S, Exley MA, Blumberg RS, Melum E (2015)
The biliary epithelium presents antigens to and activates natural killer T cells
Hepatology, 62 (4), 1249-59
DOI 10.1002/hep.27840, PubMed 25855031

Aasrum M, Tjomsland V, Thoresen GH, De Angelis PM, Christoffersen T, Brusevold IJ (2015)
PI3K is required for both basal and LPA-induced DNA synthesis in oral carcinoma cells
J Oral Pathol Med, 45 (6), 425-32
DOI 10.1111/jop.12384, PubMed 26602326

Publications 2014

Arnelo U, Siiki A, Swahn F, Segersvärd R, Enochsson L, del Chiaro M, Lundell L, Verbeke CS, Löhr JM (2014)
Single-operator pancreatoscopy is helpful in the evaluation of suspected intraductal papillary mucinous neoplasms (IPMN)
Pancreatology, 14 (6), 510-4
DOI 10.1016/j.pan.2014.08.007, PubMed 25287157

Barrett JH, Taylor JC, Bright C, Harland M, Dunning AM, Akslen LA, Andresen PA, Avril MF, Azizi E, Bianchi Scarrà G, Brossard M, Brown KM, Dębniak T, Elder DE, Friedman E, Ghiorzo P, Gillanders EM, Gruis NA, Hansson J, Helsing P, Hočevar M, Höiom V, Ingvar C, Landi MT, Lang J et al. (2014)
Fine mapping of genetic susceptibility loci for melanoma reveals a mixture of single variant and multiple variant regions
Int J Cancer, 136 (6), 1351-60
DOI 10.1002/ijc.29099, PubMed 25077817

Friis-Ottessen M, Bendix L, Kølvraa S, Norheim-Andersen S, De Angelis PM, Clausen OP (2014)
Telomere shortening correlates to dysplasia but not to DNA aneuploidy in longstanding ulcerative colitis
BMC Gastroenterol, 14, 8
DOI 10.1186/1471-230X-14-8, PubMed 24405569

Friis-Ottessen M, Burum-Auensen E, Schjølberg AR, Ekstrøm PO, Andersen SN, Clausen OP, De Angelis PM (2014)
TP53/p53 alterations and Aurora A expression in progressor and non-progressor colectomies from patients with longstanding ulcerative colitis
Int J Mol Med, 35 (1), 24-30
DOI 10.3892/ijmm.2014.1974, PubMed 25333414

Friis-Ottessen M, De Angelis PM, Schjølberg AR, Andersen SN, Clausen OP (2014)
Reduced hTERT protein levels are associated with DNA aneuploidy in the colonic mucosa of patients suffering from longstanding ulcerative colitis
Int J Mol Med, 33 (6), 1477-83
DOI 10.3892/ijmm.2014.1708, PubMed 24676865

Gerling M, Zhao Y, Nania S, Norberg KJ, Verbeke CS, Englert B, Kuiper RV, Bergström A, Hassan M, Neesse A, Löhr JM, Heuchel RL (2014)
Real-time assessment of tissue hypoxia in vivo with combined photoacoustics and high-frequency ultrasound
Theranostics, 4 (6), 604-13
DOI 10.7150/thno.7996, PubMed 24723982

Gill AJ, Hes O, Papathomas T, Šedivcová M, Tan PH, Agaimy A, Andresen PA, Kedziora A, Clarkson A, Toon CW, Sioson L, Watson N, Chou A, Paik J, Clifton-Bligh RJ, Robinson BG, Benn DE, Hills K, Maclean F, Niemeijer ND, Vlatkovic L, Hartmann A, Corssmit EP, van Leenders GJ, Przybycin C et al. (2014)
Succinate dehydrogenase (SDH)-deficient renal carcinoma: a morphologically distinct entity: a clinicopathologic series of 36 tumors from 27 patients
Am J Surg Pathol, 38 (12), 1588-602
DOI 10.1097/PAS.0000000000000292, PubMed 25025441

Hakeem AR, Verbeke CS, Cairns A, Aldouri A, Smith AM, Menon KV (2014)
A matched-pair analysis of laparoscopic versus open pancreaticoduodenectomy: oncological outcomes using Leeds Pathology Protocol
Hepatobiliary Pancreat Dis Int, 13 (4), 435-41
PubMed 25100130

Hoff G, Bretthauer M, Garborg K, Eide TJ (2014)
[Consensus-based guidelines may prevent necessary research]
Tidsskr Nor Laegeforen, 134 (2), 148-9
DOI 10.4045/tidsskr.13.1313, PubMed 24477144

Holme Ø, Bretthauer M, Eide TJ, Løberg EM, Grzyb K, Løberg M, Kalager M, Adami HO, Kjellevold Ø, Hoff G (2014)
Long-term risk of colorectal cancer in individuals with serrated polyps
Gut, 64 (6), 929-36
DOI 10.1136/gutjnl-2014-307793, PubMed 25399542

Holme Ø, Løberg M, Kalager M, Bretthauer M, Hernán MA, Aas E, Eide TJ, Skovlund E, Schneede J, Tveit KM, Hoff G (2014)
Effect of flexible sigmoidoscopy screening on colorectal cancer incidence and mortality: a randomized clinical trial
JAMA, 312 (6), 606-15
DOI 10.1001/jama.2014.8266, PubMed 25117129

Horneland R, Paulsen V, Lindahl JP, Grzyb K, Eide TJ, Lundin K, Aabakken L, Jenssen T, Aandahl EM, Foss A, Øyen O (2014)
Pancreas transplantation with enteroanastomosis to native duodenum poses technical challenges--but offers improved endoscopic access for scheduled biopsies and therapeutic interventions
Am J Transplant, 15 (1), 242-50
DOI 10.1111/ajt.12953, PubMed 25394773

Iles MM, Bishop DT, Taylor JC, Hayward NK, Brossard M, Cust AE, Dunning AM, Lee JE, Moses EK, Akslen LA, AMFS Investigators, Andresen PA, Avril MF, Azizi E, Scarrà GB, Brown KM, Dębniak T, Elder DE, Friedman E, Ghiorzo P, Gillanders EM, Goldstein AM, Gruis NA, Hansson J, Harland M et al. (2014)
The effect on melanoma risk of genes previously associated with telomere length
J Natl Cancer Inst, 106 (10)
DOI 10.1093/jnci/dju267, PubMed 25231748

Kriegbaum MC, Clausen OP, Lærum OD, Ploug M (2014)
Expression of the Ly6/uPAR-domain proteins C4.4A and Haldisin in non-invasive and invasive skin lesions
J Histochem Cytochem, 63 (2), 142-54
DOI 10.1369/0022155414563107, PubMed 25414274

Pomianowska E, Schjølberg AR, Clausen OP, Gladhaug IP (2014)
COX-2 overexpression in resected pancreatic head adenocarcinomas correlates with favourable prognosis
BMC Cancer, 14, 458
DOI 10.1186/1471-2407-14-458, PubMed 24950702

Sandhu V, Bowitz Lothe IM, Labori KJ, Lingjærde OC, Buanes T, Dalsgaard AM, Skrede ML, Hamfjord J, Haaland T, Eide TJ, Børresen-Dale AL, Ikdahl T, Kure EH (2014)
Molecular signatures of mRNAs and miRNAs as prognostic biomarkers in pancreatobiliary and intestinal types of periampullary adenocarcinomas
Mol Oncol, 9 (4), 758-71
DOI 10.1016/j.molonc.2014.12.002, PubMed 25579086

Verbeke CS (2014)
Resection margins in pancreatic cancer: are we entering a new era?
HPB (Oxford), 16 (1), 1-2
DOI 10.1111/hpb.12122, PubMed 24329942

Publications 2013

Andresen PA, Nymoen DA, Kjærheim K, Leivestad T, Helsing P (2013)
Susceptibility to Cutaneous Squamous Cell Carcinoma in Renal Transplant Recipients Associates with Genes Regulating Melanogenesis Independent of their Role in Pigmentation
Biomark Cancer, 5, 41-7
DOI 10.4137/BIC.S12754, PubMed 24179397

Feakins R, Campbell F, Verbeke CS (2013)
Survey of UK histopathologists' approach to the reporting of resection specimens for carcinomas of the pancreatic head
J Clin Pathol, 66 (8), 715-7
DOI 10.1136/jclinpath-2012-201198, PubMed 23580659

Hoff G, Bretthauer M, Garborg K, Eide TJ (2013)
New polyps, old tricks: controversy about removing benign bowel lesions
BMJ, 347, f5843
DOI 10.1136/bmj.f5843, PubMed 24103540

Kielland KB, Delaveris GJ, Rogde S, Eide TJ, Amundsen EJ, Dalgard O (2013)
Liver fibrosis progression at autopsy in injecting drug users infected by hepatitis C: a longitudinal long-term cohort study
J Hepatol, 60 (2), 260-6
DOI 10.1016/j.jhep.2013.09.022, PubMed 24096048

Mancinelli L, Secca T, De Angelis PM, Mancini F, Marchesini M, Marinelli C, Barberini L, Grignani F (2013)
A pool of peptides extracted from wheat bud chromatin inhibits tumor cell growth by causing defective DNA synthesis
Cell Div, 8, 11
DOI 10.1186/1747-1028-8-11, PubMed 23915323

Mantaka P, Helsing P, Gjersvik P, Bassarova A, Clausen OP, Delabie J (2013)
Clinical and histopathological features of folliculotropic mycosis fungoides: a Norwegian patient series
Acta Derm Venereol, 93 (3), 325-9
DOI 10.2340/00015555-1476, PubMed 23053197

Papathomas TG, Gaal J, Corssmit EP, Oudijk L, Korpershoek E, Heimdal K, Bayley JP, Morreau H, van Dooren M, Papaspyrou K, Schreiner T, Hansen T, Andresen PA, Restuccia DF, van Kessel I, van Leenders GJ, Kros JM, Looijenga LH, Hofland LJ, Mann W, van Nederveen FH, Mete O, Asa SL, de Krijger RR, Dinjens WN (2013)
Non-pheochromocytoma (PCC)/paraganglioma (PGL) tumors in patients with succinate dehydrogenase-related PCC-PGL syndromes: a clinicopathological and molecular analysis
Eur J Endocrinol, 170 (1), 1-12
DOI 10.1530/EJE-13-0623, PubMed 24096523

Verbeke CS (2013)
Resection margins in pancreatic cancer
Surg Clin North Am, 93 (3), 647-62
DOI 10.1016/j.suc.2013.02.008, PubMed 23632150

Publications 2012

Andresen K, Boberg KM, Vedeld HM, Honne H, Hektoen M, Wadsworth CA, Clausen OP, Karlsen TH, Foss A, Mathisen O, Schrumpf E, Lothe RA, Lind GE (2012)
Novel target genes and a valid biomarker panel identified for cholangiocarcinoma
Epigenetics, 7 (11), 1249-57
DOI 10.4161/epi.22191, PubMed 22983262

Blonski KM, Blödorn-Schlicht N, Falk TM, Faye RS, Clausen OP (2012)
Increased detection of cutaneous leishmaniasis in Norway by use of polymerase chain reaction
APMIS, 120 (7), 591-6
DOI 10.1111/j.1600-0463.2012.02875.x, PubMed 22716214

Bojesen KB, Clausen O, Rohde K, Christensen C, Zhang L, Li S, Køhler L, Nielbo S, Nielsen J, Gjørlund MD, Poulsen FM, Bock E, Berezin V (2012)
Nectin-1 binds and signals through the fibroblast growth factor receptor
J Biol Chem, 287 (44), 37420-33
DOI 10.1074/jbc.M112.345215, PubMed 22955284

Charlesworth M, Verbeke CS, Falk GA, Walsh M, Smith AM, Morris-Stiff G (2012)
Pancreatic lesions in von Hippel-Lindau disease? A systematic review and meta-synthesis of the literature
J Gastrointest Surg, 16 (7), 1422-8
DOI 10.1007/s11605-012-1847-0, PubMed 22370733

Folseraas T, Melum E, Rausch P, Juran BD, Ellinghaus E, Shiryaev A, Laerdahl JK, Ellinghaus D, Schramm C, Weismüller TJ, Gotthardt DN, Hov JR, Clausen OP, Weersma RK, Janse M, Boberg KM, Björnsson E, Marschall HU, Cleynen I, Rosenstiel P, Holm K, Teufel A, Rust C, Gieger C, Wichmann HE et al. (2012)
Extended analysis of a genome-wide association study in primary sclerosing cholangitis detects multiple novel risk loci
J Hepatol, 57 (2), 366-75
DOI 10.1016/j.jhep.2012.03.031, PubMed 22521342

Helsing P, Nymoen DA, Rootwelt H, Vårdal M, Akslen LA, Molven A, Andresen PA (2012)
MC1R, ASIP, TYR, and TYRP1 gene variants in a population-based series of multiple primary melanomas
Genes Chromosomes Cancer, 51 (7), 654-61
DOI 10.1002/gcc.21952, PubMed 22447455

Li J, Wang K, Gao F, Jensen TD, Li ST, DeAngelis PM, Kølvraa S, Proby C, Forslund O, Bolund L, Clausen OP (2012)
Array comparative genomic hybridization of keratoacanthomas and squamous cell carcinomas: different patterns of genetic aberrations suggest two distinct entities
J Invest Dermatol, 132 (8), 2060-6
DOI 10.1038/jid.2012.104, PubMed 22534878

Neoptolemos JP, Moore MJ, Cox TF, Valle JW, Palmer DH, McDonald AC, Carter R, Tebbutt NC, Dervenis C, Smith D, Glimelius B, Charnley RM, Lacaine F, Scarfe AG, Middleton MR, Anthoney A, Ghaneh P, Halloran CM, Lerch MM, Oláh A, Rawcliffe CL, Verbeke CS, Campbell F, Büchler MW, European Study Group for Pancreatic Cancer (2012)
Effect of adjuvant chemotherapy with fluorouracil plus folinic acid or gemcitabine vs observation on survival in patients with resected periampullary adenocarcinoma: the ESPAC-3 periampullary cancer randomized trial
JAMA, 308 (2), 147-56
DOI 10.1001/jama.2012.7352, PubMed 22782416

Pomianowska E, Grzyb K, Westgaard A, Clausen OP, Gladhaug IP (2012)
Reclassification of tumour origin in resected periampullary adenocarcinomas reveals underestimation of distal bile duct cancer
Eur J Surg Oncol, 38 (11), 1043-50
DOI 10.1016/j.ejso.2012.07.113, PubMed 22883964

Pomianowska E, Westgaard A, Mathisen Ø, Clausen OP, Gladhaug IP (2012)
Prognostic relevance of number and ratio of metastatic lymph nodes in resected pancreatic, ampullary, and distal bile duct carcinomas
Ann Surg Oncol, 20 (1), 233-41
DOI 10.1245/s10434-012-2592-z, PubMed 22893118

Westgaard A, Pomianowska E, Clausen OP, Gladhaug IP (2012)
Intestinal-type and pancreatobiliary-type adenocarcinomas: how does ampullary carcinoma differ from other periampullary malignancies?
Ann Surg Oncol, 20 (2), 430-9
DOI 10.1245/s10434-012-2603-0, PubMed 22956064

Waaler J, Machon O, Tumova L, Dinh H, Korinek V, Wilson SR, Paulsen JE, Pedersen NM, Eide TJ, Machonova O, Gradl D, Voronkov A, von Kries JP, Krauss S (2012)
A novel tankyrase inhibitor decreases canonical Wnt signaling in colon carcinoma cells and reduces tumor growth in conditional APC mutant mice
Cancer Res, 72 (11), 2822-32
DOI 10.1158/0008-5472.CAN-11-3336, PubMed 22440753

Publications 2011

Adamsen BL, Kravik KL, De Angelis PM (2011)
DNA damage signaling in response to 5-fluorouracil in three colorectal cancer cell lines with different mismatch repair and TP53 status
Int J Oncol, 39 (3), 673-82
DOI 10.3892/ijo.2011.1080, PubMed 21674128

Barrett JH, Iles MM, Harland M, Taylor JC, Aitken JF, Andresen PA, Akslen LA, Armstrong BK, Avril MF, Azizi E, Bakker B, Bergman W, Bianchi-Scarrà G, Bressac-de Paillerets B, Calista D, Cannon-Albright LA, Corda E, Cust AE, Dębniak T, Duffy D, Dunning AM, Easton DF, Friedman E, Galan P, Ghiorzo P et al. (2011)
Genome-wide association study identifies three new melanoma susceptibility loci
Nat Genet, 43 (11), 1108-13
DOI 10.1038/ng.959, PubMed 21983787

Holm S, Ueland T, Dahl TB, Michelsen AE, Skjelland M, Russell D, Nymo SH, Krohg-Sørensen K, Clausen OP, Atar D, Januzzi JL, Aukrust P, Jensen JK, Halvorsen B (2011)
Fatty Acid binding protein 4 is associated with carotid atherosclerosis and outcome in patients with acute ischemic stroke
PLoS One, 6 (12), e28785
DOI 10.1371/journal.pone.0028785, PubMed 22174896

Jørgensen KK, Grzyb K, Lundin KE, Clausen OP, Aamodt G, Schrumpf E, Vatn MH, Boberg KM (2011)
Inflammatory bowel disease in patients with primary sclerosing cholangitis: clinical characterization in liver transplanted and nontransplanted patients
Inflamm Bowel Dis, 18 (3), 536-45
DOI 10.1002/ibd.21699, PubMed 21456044

Landsverk KS, Patzke S, Rein ID, Stokke C, Lyng H, De Angelis PM, Stokke T (2011)
Three independent mechanisms for arrest in G2 after ionizing radiation
Cell Cycle, 10 (5), 819-29
DOI 10.4161/cc.10.5.14968, PubMed 21325885

Scheie D, Meling TR, Cvancarova M, Skullerud K, Mørk S, Lote K, Eide TJ, Helseth E, Beiske K (2011)
Prognostic variables in oligodendroglial tumors: a single-institution study of 95 cases
Neuro Oncol, 13 (11), 1225-33
DOI 10.1093/neuonc/nor114, PubMed 21856683

Verbeke CS, Knapp J, Gladhaug IP (2011)
Tumour growth is more dispersed in pancreatic head cancers than in rectal cancer: implications for resection margin assessment
Histopathology, 59 (6), 1111-21
DOI 10.1111/j.1365-2559.2011.04056.x, PubMed 22175891

Westgaard A, Clausen OP, Gladhaug IP (2011)
Survival estimates after pancreatoduodenectomy skewed by non-standardized histopathology reports
APMIS, 119 (10), 689-700
DOI 10.1111/j.1600-0463.2011.02783.x, PubMed 21917006

Publications 2010

Brackmann S, Aamodt G, Andersen SN, Roald B, Langmark F, Clausen OP, Aadland E, Fausa O, Rydning A, Vatn MH (2010)
Widespread but not localized neoplasia in inflammatory bowel disease worsens the prognosis of colorectal cancer
Inflamm Bowel Dis, 16 (3), 474-81
DOI 10.1002/ibd.21053, PubMed 19714748

Burum-Auensen E, Skotheim RI, Schjølberg AR, Røislien J, Lothe RA, Clausen OP (2010)
Spindle proteins are differentially expressed in the various histological subtypes of testicular germ cell tumors
J Carcinog, 9, 1
DOI 10.4103/1477-3163.60358, PubMed 20411023

Gladhaug IP, Westgaard A, Schjølberg AR, Burum-Auensen E, Pomianowska E, Clausen OP (2010)
Spindle proteins in resected pancreatic head adenocarcinomas: BubR1 is an independent prognostic factor in pancreatobiliary-type tumours
Histopathology, 56 (3), 345-55
DOI 10.1111/j.1365-2559.2010.03489.x, PubMed 20459534

Hannisdal K, Burum-Auensen E, Schjølberg A, De Angelis PM, Clausen OP (2010)
Correlation between reduced expression of the spindle checkpoint protein BubR1 and bad prognosis in tonsillar carcinomas
Head Neck, 32 (10), 1354-62
DOI 10.1002/hed.21342, PubMed 20146332

Hannisdal K, Schjølberg A, De Angelis PM, Boysen M, Clausen OP (2010)
Human papillomavirus (HPV)-positive tonsillar carcinomas are frequent and have a favourable prognosis in males in Norway
Acta Otolaryngol, 130 (2), 293-9
DOI 10.3109/00016480903071377, PubMed 19680990

Kalgaard OM, Clausen OP, Mellbye OJ, Hovig T, Kvernebo K (2010)
Nonspecific capillary proliferation and vasculopathy indicate skin hypoxia in erythromelalgia
Arch Dermatol, 147 (3), 309-14
DOI 10.1001/archdermatol.2010.337, PubMed 21079053

Morris-Stiff GJ, Senda Y, Verbeke CS, Lodge PA (2010)
Papillary adenoma arising in the left hepatic duct: an unusual tumour in an uncommon location
Eur J Gastroenterol Hepatol, 22 (7), 886-8
PubMed 20545030

Pankratova S, Kiryushko D, Sonn K, Soroka V, Køhler LB, Rathje M, Gu B, Gotfryd K, Clausen O, Zharkovsky A, Bock E, Berezin V (2010)
Neuroprotective properties of a novel, non-haematopoietic agonist of the erythropoietin receptor
Brain, 133 (Pt 8), 2281-94
DOI 10.1093/brain/awq101, PubMed 20435631

Sjursen W, Haukanes BI, Grindedal EM, Aarset H, Stormorken A, Engebretsen LF, Jonsrud C, Bjørnevoll I, Andresen PA, Ariansen S, Lavik LA, Gilde B, Bowitz-Lothe IM, Maehle L, Møller P (2010)
Current clinical criteria for Lynch syndrome are not sensitive enough to identify MSH6 mutation carriers
J Med Genet, 47 (9), 579-85
DOI 10.1136/jmg.2010.077677, PubMed 20587412

Verbeke CS (2010)
Endocrine tumours of the pancreas
Histopathology, 56 (6), 669-82
DOI 10.1111/j.1365-2559.2010.03490.x, PubMed 20546332

Verbeke CS (2010)
Intraductal papillary-mucinous neoplasia of the pancreas: Histopathology and molecular biology
World J Gastrointest Surg, 2 (10), 306-13
DOI 10.4240/wjgs.v2.i10.306, PubMed 21160835

Verbeke CS, Smith AM (2010)
Survival after pancreaticoduodenectomy is not improved by extending resections to achieve negative margins
Ann Surg, 251 (4), 776-7; author reply 777-8
DOI 10.1097/SLA.0b013e3181d57af6, PubMed 20224357

Publications 2009

Adamsen BL, Kravik L, De Angelis PM (2009)
Cellular response to chemoradiotherapy, radiotherapy and chemotherapy in two colorectal cancer cell lines
Radiat Res, 171 (5), 562-71
DOI 10.1667/RR1524.1, PubMed 19580491

Andresen PA, Heimdal K, Aaberg K, Eklo K, Ariansen S, Silye A, Fausa O, Aabakken L, Aretz S, Eide TJ, Gedde-Dahl T (2009)
APC mutation spectrum of Norwegian familial adenomatous polyposis families: high ratio of novel mutations
J Cancer Res Clin Oncol, 135 (10), 1463-70
DOI 10.1007/s00432-009-0594-4, PubMed 19444466

Brackmann S, Andersen SN, Aamodt G, Langmark F, Clausen OP, Aadland E, Fausa O, Rydning A, Vatn MH (2009)
Relationship between clinical parameters and the colitis-colorectal cancer interval in a cohort of patients with colorectal cancer in inflammatory bowel disease
Scand J Gastroenterol, 44 (1), 46-55
DOI 10.1080/00365520801977568, PubMed 18609187

Brackmann S, Andersen SN, Aamodt G, Roald B, Langmark F, Clausen OP, Aadland E, Fausa O, Rydning A, Vatn MH (2009)
Two distinct groups of colorectal cancer in inflammatory bowel disease
Inflamm Bowel Dis, 15 (1), 9-16
DOI 10.1002/ibd.20542, PubMed 18618636

Dahl O, Fluge Ø, Carlsen E, Wiig JN, Myrvold HE, Vonen B, Podhorny N, Bjerkeset O, Eide TJ, Halvorsen TB, Tveit KM, Norwegian Gastrointestinal Cancer Group (2009)
Final results of a randomised phase III study on adjuvant chemotherapy with 5 FU and levamisol in colon and rectum cancer stage II and III by the Norwegian Gastrointestinal Cancer Group
Acta Oncol, 48 (3), 368-76
DOI 10.1080/02841860902755244, PubMed 19242829

Fluge Ø, Gravdal K, Carlsen E, Vonen B, Kjellevold K, Refsum S, Lilleng R, Eide TJ, Halvorsen TB, Tveit KM, Otte AP, Akslen LA, Dahl O, Norwegian Gastrointestinal Cancer Group (2009)
Expression of EZH2 and Ki-67 in colorectal cancer and associations with treatment response and prognosis
Br J Cancer, 101 (8), 1282-9
DOI 10.1038/sj.bjc.6605333, PubMed 19773751

Lehne G, Grasmo-Wendler UH, Berner JM, Meza-Zepeda LA, Adamsen BL, Flack A, Reiner A, Clausen OP, Hovig E, Myklebost O (2009)
Upregulation of stem cell genes in multidrug resistant K562 leukemia cells
Leuk Res, 33 (10), 1379-85
DOI 10.1016/j.leukres.2009.03.028, PubMed 19394083

Littleford SE, Baird A, Rotimi O, Verbeke CS, Scott N (2009)
Interobserver variation in the reporting of local peritoneal involvement and extramural venous invasion in colonic cancer
Histopathology, 55 (4), 407-13
DOI 10.1111/j.1365-2559.2009.03397.x, PubMed 19817891

Mancinelli L, De Angelis PM, Annulli L, Padovini V, Elgjo K, Gianfranceschi GL (2009)
A class of DNA-binding peptides from wheat bud causes growth inhibition, G2 cell cycle arrest and apoptosis induction in HeLa cells
Mol Cancer, 8, 55
DOI 10.1186/1476-4598-8-55, PubMed 19646247

Menon KV, Gomez D, Smith AM, Anthoney A, Verbeke CS (2009)
Impact of margin status on survival following pancreatoduodenectomy for cancer: the Leeds Pathology Protocol (LEEPP)
HPB (Oxford), 11 (1), 18-24
DOI 10.1111/j.1477-2574.2008.00013.x, PubMed 19590619

Rønning P, Andresen PA, Hald JK, Heimdal K, Scheie D, Schreiner T, Helseth E (2009)
Low frequency of VHL germline mutations in Norwegian patients presenting with isolated central nervous system hemangioblastomas--a population-based study
Acta Neurol Scand, 122 (2), 124-31
DOI 10.1111/j.1600-0404.2009.01274.x, PubMed 19814753

Schjølberg AR, Clausen OP, Burum-Auensen E, De Angelis PM (2009)
Aneuploidy is associated with TP53 expression but not with BRCA1 or TERT expression in sporadic colorectal cancer
Anticancer Res, 29 (11), 4381-7
PubMed 20032382

Steigen SE, Eide TJ (2009)
Gastrointestinal stromal tumors (GISTs): a review
APMIS, 117 (2), 73-86
DOI 10.1111/j.1600-0463.2008.00020.x, PubMed 19239429

Verbeke CS, Menon KV (2009)
Redefining resection margin status in pancreatic cancer
HPB (Oxford), 11 (4), 282-9
DOI 10.1111/j.1477-2574.2009.00055.x, PubMed 19718354

Waterhouse KE, Gjeldnes A, Tverdal A, De Angelis PM, Farstad W, Håård M, Kommisrud E (2009)
Alterations of sperm DNA integrity during cryopreservation procedure and in vitro incubation of bull semen
Anim Reprod Sci, 117 (1-2), 34-42
DOI 10.1016/j.anireprosci.2009.04.011, PubMed 19481887

Westgaard A, Larønningen S, Mellem C, Eide TJ, Clausen OP, Møller B, Gladhaug IP (2009)
Are survival predictions reliable? Hospital volume versus standardisation of histopathologic reporting for accuracy of survival estimates after pancreatoduodenectomy for adenocarcinoma
Eur J Cancer, 45 (16), 2850-9
DOI 10.1016/j.ejca.2009.03.019, PubMed 19376696

Westgaard A, Schjølberg AR, Cvancarova M, Eide TJ, Clausen OP, Gladhaug IP (2009)
Differentiation markers in pancreatic head adenocarcinomas: MUC1 and MUC4 expression indicates poor prognosis in pancreatobiliary differentiated tumours
Histopathology, 54 (3), 337-47
DOI 10.1111/j.1365-2559.2009.03227.x, PubMed 19236510

Publications 2008

Aparajita R, Gomez D, Verbeke CS, Menon KV (2008)
Papillary adenoma of the distal common bile duct associated with a synchronous carcinoma of the peri-ampullary duodenum
JOP, 9 (2), 212-5
PubMed 18326932

Bonney GK, Gomez D, Rahman SH, Verbeke CS, Prasad KR, Toogood GJ, Lodge JP, Menon KV (2008)
Results following surgical resection for malignant pancreatic neuroendocrine tumours. A single institutional experience
JOP, 9 (1), 19-25
PubMed 18182738

Burum-Auensen E, DeAngelis PM, Schjølberg AR, Røislien J, Mjåland O, Clausen OP (2008)
Reduced level of the spindle checkpoint protein BUB1B is associated with aneuploidy in colorectal cancers
Cell Prolif, 41 (4), 645-59
DOI 10.1111/j.1365-2184.2008.00539.x, PubMed 18699967

Ching SS, Verbeke CS, Homer-Vanniasinkam S, McMahon MJ (2008)
Comparison of torsional and linear mode ultrasonic coagulating shears for sealing veins
J Laparoendosc Adv Surg Tech A, 18 (6), 819-24
DOI 10.1089/lap.2008.0066, PubMed 19105669

Haug K, Kravik KL, De Angelis PM (2008)
Cellular response to irinotecan in colon cancer cell lines showing differential response to 5-fluorouracil
Anticancer Res, 28 (2A), 583-92
PubMed 18506996

Helsing P, Nymoen DA, Ariansen S, Steine SJ, Maehle L, Aamdal S, Langmark F, Loeb M, Akslen LA, Molven A, Andresen PA (2008)
Population-based prevalence of CDKN2A and CDK4 mutations in patients with multiple primary melanomas
Genes Chromosomes Cancer, 47 (2), 175-84
DOI 10.1002/gcc.20518, PubMed 18023021

Küchler AM, Pollheimer J, Balogh J, Sponheim J, Manley L, Sorensen DR, De Angelis PM, Scott H, Haraldsen G (2008)
Nuclear interleukin-33 is generally expressed in resting endothelium but rapidly lost upon angiogenic or proinflammatory activation
Am J Pathol, 173 (4), 1229-42
DOI 10.2353/ajpath.2008.080014, PubMed 18787100

Lindsetmo RO, Eide TJ, Johnsen R, Revhaug A (2008)
Helicobacter pylori-induced damage to the gastric mucosa is not modulated by previous vagotomy or medical treatment of peptic ulcer disease: a comparative study of vagotomized patients, medically treated peptic ulcer patients and community control subjects
World J Surg, 32 (10), 2267-74
DOI 10.1007/s00268-008-9690-x, PubMed 18648872

Lindsetmo RO, Johnsen R, Eide TJ, Gutteberg T, Husum HH, Revhaug A (2008)
Accuracy of Helicobacter pylori serology in two peptic ulcer populations and in healthy controls
World J Gastroenterol, 14 (32), 5039-45
DOI 10.3748/wjg.14.5039, PubMed 18763287

Scheie D, Cvancarova M, Mørk S, Skullerud K, Andresen PA, Benestad I, Helseth E, Meling T, Beiske K (2008)
Can morphology predict 1p/19q loss in oligodendroglial tumours?
Histopathology, 53 (5), 578-87
DOI 10.1111/j.1365-2559.2008.03160.x, PubMed 18983467

Søland TM, Husvik C, Koppang HS, Boysen M, Sandvik L, Clausen OP, Christoffersen T, Bryne M (2008)
A study of phosphorylated ERK1/2 and COX-2 in early stage (T1-T2) oral squamous cell carcinomas
J Oral Pathol Med, 37 (9), 535-42
DOI 10.1111/j.1600-0714.2008.00656.x, PubMed 18284542

Verbeke CS, Menon KV (2008)
Variability in reporting resection margin status in pancreatic cancer
Ann Surg, 247 (4), 716-7
DOI 10.1097/SLA.0b013e31816a7077, PubMed 18362643

Westgaard A, Tafjord S, Farstad IN, Cvancarova M, Eide TJ, Mathisen O, Clausen OP, Gladhaug IP (2008)
Resectable adenocarcinomas in the pancreatic head: the retroperitoneal resection margin is an independent prognostic factor
BMC Cancer, 8, 5
DOI 10.1186/1471-2407-8-5, PubMed 18194510

Westgaard A, Tafjord S, Farstad IN, Cvancarova M, Eide TJ, Mathisen O, Clausen OP, Gladhaug IP (2008)
Pancreatobiliary versus intestinal histologic type of differentiation is an independent prognostic factor in resected periampullary adenocarcinoma
BMC Cancer, 8, 170
DOI 10.1186/1471-2407-8-170, PubMed 18547417

Publications 2007

Adamsen BL, Kravik KL, Clausen OP, De Angelis PM (2007)
Apoptosis, cell cycle progression and gene expression in TP53-depleted HCT116 colon cancer cells in response to short-term 5-fluorouracil treatment
Int J Oncol, 31 (6), 1491-500
PubMed 17982676

Andresen PA, Johansen T, Eide TJ, Gedde-Dahl T (2007)
Gene symbol: APC
Hum Genet, 121 (2), 288
PubMed 17598199

Burum-Auensen E, De Angelis PM, Schjølberg AR, Kravik KL, Aure M, Clausen OP (2007)
Subcellular localization of the spindle proteins Aurora A, Mad2, and BUBR1 assessed by immunohistochemistry
J Histochem Cytochem, 55 (5), 477-86
DOI 10.1369/jhc.6A7077.2007, PubMed 17242465

Burum-Auensen E, Deangelis PM, Schjølberg AR, Røislien J, Andersen SN, Clausen OP (2007)
Spindle proteins Aurora A and BUB1B, but not Mad2, are aberrantly expressed in dysplastic mucosa of patients with longstanding ulcerative colitis
J Clin Pathol, 60 (12), 1403-8
DOI 10.1136/jcp.2006.044305, PubMed 17322345

De Angelis PM, Stokke T, Beigi M, Flatberg G, Enger M, Haug K, Aass HC, Schjølberg A, Andresen PA, Ariansen S, Bø AS, Mjåland O, Clausen OP (2007)
Chromosomal 20q gain in the DNA diploid component of aneuploid colorectal carcinomas
Int J Cancer, 120 (12), 2734-8
DOI 10.1002/ijc.22537, PubMed 17354231

Foo FJ, Gill U, Verbeke CS, Guthrie JA, Menon KV (2007)
Ampullary carcinoma associated with an annular pancreas
JOP, 8 (1), 50-4
PubMed 17228134

Foo FJ, Verbeke CS, Guthrie JA, Ala A, Menon KV (2007)
Pancreatic and peripancreatic tuberculosis mimicking malignancy
JOP, 8 (2), 201-5
PubMed 17356244

Leuenberger D, Andresen PA, Gosert R, Binggeli S, Ström EH, Bodaghi S, Rinaldo CH, Hirsch HH (2007)
Human polyomavirus type 1 (BK virus) agnoprotein is abundantly expressed but immunologically ignored
Clin Vaccine Immunol, 14 (8), 959-68
DOI 10.1128/CVI.00123-07, PubMed 17538118

Løvig T, Andersen SN, Clausen OP, Rognum TO (2007)
Microsatellite instability in long-standing ulcerative colitis
Scand J Gastroenterol, 42 (5), 586-91
DOI 10.1080/00365520601013747, PubMed 17454879

Menon KV, Hayden JD, Prasad KR, Verbeke CS (2007)
Total laparoscopic pancreaticoduodenectomy and reconstruction for a cholangiocarcinoma of the bile duct
J Laparoendosc Adv Surg Tech A, 17 (6), 775-80
DOI 10.1089/lap.2006.0236, PubMed 18158808

Rahman SH, Verbeke CS, Gomez D, McMahon MJ, Menon KV (2007)
Pancreatico-duodenectomy for complicated groove pancreatitis
HPB (Oxford), 9 (3), 229-34
DOI 10.1080/13651820701216430, PubMed 18333228

Steigen SE, Bjerkehagen B, Haugland HK, Nordrum IS, Løberg EM, Isaksen V, Eide TJ, Nielsen TO (2007)
Diagnostic and prognostic markers for gastrointestinal stromal tumors in Norway
Mod Pathol, 21 (1), 46-53
DOI 10.1038/modpathol.3800976, PubMed 17917670

Steigen SE, Eide TJ, Wasag B, Lasota J, Miettinen M (2007)
Mutations in gastrointestinal stromal tumors--a population-based study from Northern Norway
APMIS, 115 (4), 289-98
DOI 10.1111/j.1600-0463.2007.apm_587.x, PubMed 17504295

Tolan DJ, Harris KM, Sheridan MB, Guthrie JA, England RE, Aldersley M, Verbeke CS, Smith AM (2007)
Periampullary diverticulum: an unusual cause of double duct obstruction
Gastrointest Endosc, 67 (3), 565-7
DOI 10.1016/j.gie.2007.06.016, PubMed 17981279

Publications 2006

Adamthwaite JA, Verbeke CS, Stringer MD, Guillou PJ, Menon KV (2006)
Solid pseudopapillary tumour of the pancreas: diverse presentation, outcome and histology
JOP, 7 (6), 635-42
PubMed 17095844

Boberg KM, Jebsen P, Clausen OP, Foss A, Aabakken L, Schrumpf E (2006)
Diagnostic benefit of biliary brush cytology in cholangiocarcinoma in primary sclerosing cholangitis
J Hepatol, 45 (4), 568-74
DOI 10.1016/j.jhep.2006.05.010, PubMed 16879890

Clausen OP, Aass HC, Beigi M, Purdie KJ, Proby CM, Brown VL, Mattingsdal M, Micci F, Kølvraa S, Bolund L, Deangelis PM (2006)
Are keratoacanthomas variants of squamous cell carcinomas? A comparison of chromosomal aberrations by comparative genomic hybridization
J Invest Dermatol, 126 (10), 2308-15
DOI 10.1038/sj.jid.5700375, PubMed 16728973

De Angelis PM, Svendsrud DH, Kravik KL, Stokke T (2006)
Cellular response to 5-fluorouracil (5-FU) in 5-FU-resistant colon cancer cell lines during treatment and recovery
Mol Cancer, 5, 20
DOI 10.1186/1476-4598-5-20, PubMed 16709241

Frich L, Bjørnland K, Pettersen S, Clausen OP, Gladhaug IP (2006)
Increased activity of matrix metalloproteinase 2 and 9 after hepatic radiofrequency ablation
J Surg Res, 135 (2), 297-304
DOI 10.1016/j.jss.2006.05.010, PubMed 16934296

Frich L, Hol PK, Roy S, Mala T, Edwin B, Clausen OP, Gladhaug IP (2006)
Experimental hepatic radiofrequency ablation using wet electrodes: electrode-to-vessel distance is a significant predictor for delayed portal vein thrombosis
Eur Radiol, 16 (9), 1990-9
DOI 10.1007/s00330-006-0177-6, PubMed 16541225

Gomez D, Rahman SH, Won LF, Verbeke CS, McMahon MJ, Menon KV (2006)
Characterization of malignant pancreatic cystic lesions in the background of chronic pancreatitis
JOP, 7 (5), 465-72
PubMed 16998243

Olsen GH, Andresen PA, Hilmarsen HT, Bjørang O, Scott H, Midtvedt K, Rinaldo CH (2006)
Genetic variability in BK Virus regulatory regions in urine and kidney biopsies from renal-transplant patients
J Med Virol, 78 (3), 384-93
DOI 10.1002/jmv.20551, PubMed 16419108

Scheie D, Andresen PA, Cvancarova M, Bø AS, Helseth E, Skullerud K, Beiske K (2006)
Fluorescence in situ hybridization (FISH) on touch preparations: a reliable method for detecting loss of heterozygosity at 1p and 19q in oligodendroglial tumors
Am J Surg Pathol, 30 (7), 828-37
DOI 10.1097/01.pas.0000213250.44822.2e, PubMed 16819324

Steigen SE, Eide TJ (2006)
Trends in incidence and survival of mesenchymal neoplasm of the digestive tract within a defined population of northern Norway
APMIS, 114 (3), 192-200
DOI 10.1111/j.1600-0463.2006.apm_261.x, PubMed 16643186

Stormorken A, Heintz KM, Andresen PA, Hovig E, Møller P (2006)
MUTYH Mutations Do Not Cause HNPCC or Late Onset Familial Colorectal Cancer
Hered Cancer Clin Pract, 4 (2), 90-3
DOI 10.1186/1897-4287-4-2-90, PubMed 20223013

Upadhyay N, Gomez D, Button MF, Verbeke CS, Menon KV (2006)
Retroperitoneal enteric duplication cyst presenting as a pancreatic cystic lesion. A case report
JOP, 7 (5), 492-5
PubMed 16998248

Waterhouse KE, Haugan T, Kommisrud E, Tverdal A, Flatberg G, Farstad W, Evenson DP, De Angelis PM (2006)
Sperm DNA damage is related to field fertility of semen from young Norwegian Red bulls
Reprod Fertil Dev, 18 (7), 781-8
DOI 10.1071/RD06029, PubMed 17032587

Xie X, Clausen OP, Boysen M (2006)
Correlation of numerical aberrations of chromosomes X and 11 and poor prognosis in squamous cell carcinomas of the head and neck
Arch Otolaryngol Head Neck Surg, 132 (5), 511-5
DOI 10.1001/archotol.132.5.511, PubMed 16702567

Publications 2005

Almendingen K, Brevik A, Nymoen DA, Hilmarsen HT, Andresen PA, Andersen LF, Vatn M (2005)
Modulation of COX-2 expression in peripheral blood cells by increased intake of fruit and vegetables?
Eur J Clin Nutr, 59 (4), 597-602
DOI 10.1038/sj.ejcn.1602110, PubMed 15741988

Bliksrud YT, Brodtkorb E, Andresen PA, van den Berg IE, Kvittingen EA (2005)
Tyrosinaemia type I--de novo mutation in liver tissue suppressing an inborn splicing defect
J Mol Med (Berl), 83 (5), 406-10
DOI 10.1007/s00109-005-0648-2, PubMed 15759101

Brandsaeter B, Schrumpf E, Bentdal O, Brabrand K, Smith HJ, Abildgaard A, Clausen OP, Bjoro K (2005)
Recurrent primary sclerosing cholangitis after liver transplantation: a magnetic resonance cholangiography study with analyses of predictive factors
Liver Transpl, 11 (11), 1361-9
DOI 10.1002/lt.20444, PubMed 16184522

Gondal G, Grotmol T, Hofstad B, Bretthauer M, Eide TJ, Hoff G (2005)
Biopsy of colorectal polyps is not adequate for grading of neoplasia
Endoscopy, 37 (12), 1193-7
DOI 10.1055/s-2005-921031, PubMed 16329016

Gondal G, Grotmol T, Hofstad B, Bretthauer M, Eide TJ, Hoff G (2005)
Lifestyle-related risk factors and chemoprevention for colorectal neoplasia: experience from the large-scale NORCCAP screening trial
Eur J Cancer Prev, 14 (4), 373-9
DOI 10.1097/00008469-200508000-00010, PubMed 16030428

Olaussen RW, Løvik A, Tollefsen S, Andresen PA, Vatn MH, De Lange T, Bratlie J, Brandtzaeg P, Farstad IN, Lundin KE (2005)
Effect of elemental diet on mucosal immunopathology and clinical symptoms in type 1 refractory celiac disease
Clin Gastroenterol Hepatol, 3 (9), 875-85
DOI 10.1053/S1542-3565(05)00295-8, PubMed 16234025

Sarela AI, Scott N, Verbeke CS, Wyatt JI, Dexter SP, Sue-Ling HM, Guillou PJ (2005)
Diagnostic variation and outcome for high-grade gastric epithelial dysplasia
Arch Surg, 140 (7), 644-9
DOI 10.1001/archsurg.140.7.644, PubMed 16027328

Sollid J, Kjernsli A, De Angelis PM, Røhr AK, Nilsson GE (2005)
Cell proliferation and gill morphology in anoxic crucian carp
Am J Physiol Regul Integr Comp Physiol, 289 (4), R1196-201
DOI 10.1152/ajpregu.00267.2005, PubMed 15919732

Vermund H, Krajci P, Eide TJ, Winther F (2005)
Histopathological grading of laryngectomy specimens
APMIS, 113 (7-8), 473-88
DOI 10.1111/j.1600-0463.2005.apm_24.x, PubMed 16086817

Publications 2004

Angelis PM, Kravik KL, Tunheim SH, Haug T, Reichelt WH (2004)
Comparison of gene expression in HCT116 treatment derivatives generated by two different 5-fluorouracil exposure protocols
Mol. Cancer, 3, 11

Brandsaeter B, Schrumpf E, Clausen OP, Abildgaard A, Hafsahl G, Bjøro K (2004)
Recurrent sclerosing cholangitis or ischemic bile duct lesions--a diagnostic challenge?
Liver Transpl, 10 (8), 1073-4
DOI 10.1002/lt.20192, PubMed 15390337

de Angelis PM, Fjell B, Kravik KL, Haug T, Tunheim SH, Reichelt W, Beigi M, Clausen OP, Galteland E, Stokke T (2004)
Molecular characterizations of derivatives of HCT116 colorectal cancer cells that are resistant to the chemotherapeutic agent 5-fluorouracil
Int J Oncol, 24 (5), 1279-88
PubMed 15067352

De Angelis PM, Kravik KL, Tunheim SH, Haug T, Reichelt WH (2004)
Comparison of gene expression in HCT116 treatment derivatives generated by two different 5-fluorouracil exposure protocols
Mol Cancer, 3, 11
DOI 10.1186/1476-4598-3-11, PubMed 15109396

Halvorsen B, Waehre T, Scholz H, Clausen OP, von der Thüsen JH, Müller F, Heimli H, Tonstad S, Hall C, Frøland SS, Biessen EA, Damås JK, Aukrust P (2004)
Interleukin-10 enhances the oxidized LDL-induced foam cell formation of macrophages by antiapoptotic mechanisms
J Lipid Res, 46 (2), 211-9
DOI 10.1194/jlr.M400324-JLR200, PubMed 15547296

Lyng H, Beigi M, Svendsrud DH, Brustugun OT, Stokke T, Kristensen GB, Sundfør K, Skjønsberg A, De Angelis PM (2004)
Intratumor chromosomal heterogeneity in advanced carcinomas of the uterine cervix
Int J Cancer, 111 (3), 358-66
DOI 10.1002/ijc.20258, PubMed 15221962

Reichelt WH, De Angelis PM, Knutsen HK, Husøy T, Elgjo K, Reichelt KL (2004)
The colon mitosis inhibitor pyroglutamyl-histidyl-glycine inhibits growth of non-tumorigenic colonic epithelial cells
Anticancer Res, 24 (2B), 587-91
PubMed 15160998

Sarela AI, Hick DG, Verbeke CS, Casey JF, Guillou PJ, Clark GW (2004)
Persistent acid and bile reflux in asymptomatic patients with Barrett esophagus receiving proton pump inhibitor therapy
Arch Surg, 139 (5), 547-51
DOI 10.1001/archsurg.139.5.547, PubMed 15136356

Skovseth DK, Veuger MJ, Sorensen DR, De Angelis PM, Haraldsen G (2004)
Endostatin dramatically inhibits endothelial cell migration, vascular morphogenesis, and perivascular cell recruitment in vivo
Blood, 105 (3), 1044-51
DOI 10.1182/blood-2004-03-1164, PubMed 15466935

Vermund H, Krajci P, Eide TJ, Winther F (2004)
Laryngectomy whole organ serial sections--histological parameters correlated with recurrence rate
Acta Oncol, 43 (1), 98-107
DOI 10.1080/02841860310020366, PubMed 15068327

Waterhouse KE, De Angelis PM, Haugan T, Paulenz H, Hofmo PO, Farstad W (2004)
Effects of in vitro storage time and semen-extender on membrane quality of boar sperm assessed by flow cytometry
Theriogenology, 62 (9), 1638-51
DOI 10.1016/j.theriogenology.2004.03.001, PubMed 15511551

Xie X, Clausen OP, Boysen M (2004)
Bag-1 expression as a prognostic factor in tongue squamous cell carcinomas
Laryngoscope, 114 (10), 1785-90
DOI 10.1097/00005537-200410000-00021, PubMed 15454773

Publications 2003

Beardsmore DM, Verbeke CS, Davies CL, Guillou PJ, Clark GW (2003)
Apoptotic and proliferative indexes in esophageal cancer: predictors of response to neoadjuvant therapy [corrected]
J Gastrointest Surg, 7 (1), 77-86; discussion 86-7
PubMed 12559188

Beardsmore DM, Verbeke CS, Davies CL, Guillou PJ, Clark GWB (2003)
Apoptotic and proliferative indexes in esophageal cancer: Predictors of response to neoadjuvant therapy apoptosis and proliferation in esophageal cancer
J Gastrointest Surg, 7 (1), 77-87
DOI 10.1016/S1091-255X(02)00141-5, PubMed 29340962

Beardsmore DM, Verbeke CS, Davies CL, Guillou PJ, Clark GWB (2003)
Erratum to: Apoptotic and proliferative indexes in esophageal cancer: Predictors of response to neoadjuvant therapy apoptosis and proliferation in esophageal cancer
J Gastrointest Surg, 7 (4), 583
DOI 10.1016/S1091-255X(03)00068-4, PubMed 29340976

Boberg KM, Jebsen P, Clausen OP, Aabakken L, Brekke I, Schrumpf E (2003)
Cholangiocarcinoma in situ in primary sclerosing cholangitis: diagnosis by brush cytology and treatment by liver transplantation
J Hepatol, 39 (3), 453
DOI 10.1016/S0168-8278(03)00326-X, PubMed 12927935

Bretthauer M, Skovlund E, Grotmol T, Thiis-Evensen E, Gondal G, Huppertz-Hauss G, Efskind P, Hofstad B, Thorp Holmsen S, Eide TJ, Hoff G (2003)
Inter-endoscopist variation in polyp and neoplasia pick-up rates in flexible sigmoidoscopy screening for colorectal cancer
Scand J Gastroenterol, 38 (12), 1268-74
DOI 10.1080/00365520310006513, PubMed 14750648

Forslund O, DeAngelis PM, Beigi M, Schjølberg AR, Clausen OP (2003)
Identification of human papillomavirus in keratoacanthomas
J Cutan Pathol, 30 (7), 423-9
DOI 10.1034/j.1600-0560.2003.00092.x, PubMed 12859739

Gondal G, Grotmol T, Hofstad B, Bretthauer M, Eide TJ, Hoff G (2003)
The Norwegian Colorectal Cancer Prevention (NORCCAP) screening study: baseline findings and implementations for clinical work-up in age groups 50-64 years
Scand J Gastroenterol, 38 (6), 635-42
DOI 10.1080/00365520310003002, PubMed 12825872

Gondal G, Grotmol T, Hofstad B, Bretthauer M, Eide TJ, Hoff G (2003)
Grading of distal colorectal adenomas as predictors for proximal colonic neoplasia and choice of endoscope in population screening: experience from the Norwegian Colorectal Cancer Prevention study (NORCCAP)
Gut, 52 (3), 398-403
DOI 10.1136/gut.52.3.398, PubMed 12584223

Løvig T, Thorstensen L, Hofstad B, Andersen SN, Clausen OP, Vatn M, Lothe RA, Rognum TO (2003)
Genetic and protein markers related to in situ growth and multiplicity in small sporadic colorectal adenomas
Scand J Gastroenterol, 38 (3), 298-306
DOI 10.1080/00365520310000618, PubMed 12737446

Mala T, Frich L, Aurdal L, Clausen OP, Edwin B, Soreide O, Gladhaug I (2003)
Intraoperative contrast-enhanced MR-imaging as predictor of tissue damage during cryoablation of porcine liver
Magn Reson Imaging, 21 (7), 733-40
DOI 10.1016/S0730-725X(03)00176-0, PubMed 14559337

Mala T, Frich L, Aurdal L, Clausen OP, Edwin B, Søreide O, Gladhaug IP (2003)
Hepatic vascular inflow occlusion enhances tissue destruction during cryoablation of porcine liver
J Surg Res, 115 (2), 265-71
DOI 10.1016/j.jss.2003.07.009, PubMed 14697293

Paulsen JE, Steffensen IL, Namork E, Eide TJ, Alexander J (2003)
Age-dependent susceptibility to azoxymethane-induced and spontaneous tumorigenesis in the Min/+ mouse
Anticancer Res, 23 (1A), 259-65
PubMed 12680222

Soares MV, Plunkett FJ, Verbeke CS, Cook JE, Faint JM, Belaramani LL, Fletcher JM, Hammerschmitt N, Rustin M, Bergler W, Beverley PC, Salmon M, Akbar AN (2003)
Integration of apoptosis and telomere erosion in virus-specific CD8+ T cells from blood and tonsils during primary infection
Blood, 103 (1), 162-7
DOI 10.1182/blood-2003-06-1791, PubMed 12969961

Sollid J, De Angelis P, Gundersen K, Nilsson GE (2003)
Hypoxia induces adaptive and reversible gross morphological changes in crucian carp gills
J Exp Biol, 206 (Pt 20), 3667-73
DOI 10.1242/jeb.00594, PubMed 12966058

Steigen SE, Eide TJ (2003)
[Gastrointestinal stromal tumor]
Tidsskr Nor Laegeforen, 123 (9), 1191-3
PubMed 12789787

Xie X, Clausen OP, Boysen M (2003)
Prognostic value of Bak expression in oral tongue squamous cell carcinomas
Oncol Rep, 10 (2), 369-74
PubMed 12579274

Publications 2002

Bees MA, Andresén P, Mosekilde E, Givskov M (2002)
Quantitative effects of medium hardness and nutrient availability on the swarming motility of Serratia liquefaciens
Bull Math Biol, 64 (3), 565-87
DOI 10.1006/bulm.2002.0287, PubMed 12094409

Bjorang O, Tveitan H, Midtvedt K, Broch LU, Scott H, Andresen PA (2002)
Treatment of polyomavirus infection with cidofovir in a renal-transplant recipient
Nephrol Dial Transplant, 17 (11), 2023-5
DOI 10.1093/ndt/17.11.2023, PubMed 12401867

Björnsson E, Boberg KM, Cullen S, Fleming K, Clausen OP, Fausa O, Schrumpf E, Chapman RW (2002)
Patients with small duct primary sclerosing cholangitis have a favourable long term prognosis
Gut, 51 (5), 731-5
DOI 10.1136/gut.51.5.731, PubMed 12377815

Bretthauer M, Gondal G, Larsen K, Carlsen E, Eide TJ, Grotmol T, Skovlund E, Tveit KM, Vatn MH, Hoff G (2002)
Design, organization and management of a controlled population screening study for detection of colorectal neoplasia: attendance rates in the NORCCAP study (Norwegian Colorectal Cancer Prevention)
Scand J Gastroenterol, 37 (5), 568-73
DOI 10.1080/00365520252903125, PubMed 12059059

Clausen OP, Beigi M, Bolund L, Kølvraa S, Gjersvik PJ, Mørk G, de Angelis PM (2002)
Keratoacanthomas frequently show chromosomal aberrations as assessed by comparative genomic hybridization
J Invest Dermatol, 119 (6), 1367-72
DOI 10.1046/j.1523-1747.2002.19613.x, PubMed 12485441

Lehne G, Sørensen DR, Tjønnfjord GE, Beiske C, Hagve TA, Rugstad HE, Clausen OP (2002)
The cyclosporin PSC 833 increases survival and delays engraftment of human multidrug-resistant leukemia cells in xenotransplanted NOD-SCID mice
Leukemia, 16 (12), 2388-94
DOI 10.1038/sj.leu.2402663, PubMed 12454743

Oie E, Clausen OP, Yndestad A, Grøgaard HK, Attramadal H (2002)
Endothelin receptor antagonism attenuates cardiomyocyte apoptosis after induction of ischemia in rats
Scand Cardiovasc J, 36 (2), 108-16
DOI 10.1080/140174302753675401, PubMed 12028875

Paulsen JE, Bjørheim J, Røe J, Eide TJ, Alexander J, Gaudernack G (2002)
Effect of vaccination with mutant KRAS peptides on rat colon carcinogenesis induced by azoxymethane
Anticancer Res, 22 (1A), 171-5
PubMed 12017282

Sonwalkar SA, Denyer ME, Verbeke CS, Guillou PJ (2002)
Cancer of appendix as a presenting feature of Crohn's disease
Eur J Gastroenterol Hepatol, 14 (9), 1029-32
PubMed 12352226

Wibe A, Rendedal PR, Svensson E, Norstein J, Eide TJ, Myrvold HE, Søreide O (2002)
Prognostic significance of the circumferential resection margin following total mesorectal excision for rectal cancer
Br J Surg, 89 (3), 327-34
DOI 10.1046/j.0007-1323.2001.02024.x, PubMed 11872058

Xie X, Clausen OP, Boysen M (2002)
Prognostic significance of p21WAF1/CIP1 expression in tongue squamous cell carcinomas
Arch Otolaryngol Head Neck Surg, 128 (8), 897-902
DOI 10.1001/archotol.128.8.897, PubMed 12162767

Publications 2001

Andresen PA, Gedde-Dahl T, Fausa O, Eide TJ, Heiberg A (2001)
[Genetic analysis in familial adenomatous polyposis]
Tidsskr Nor Laegeforen, 121 (1), 64-8
PubMed 12013617

Andreyev HJ, Norman AR, Cunningham D, Oates J, Dix BR, Iacopetta BJ, Young J, Walsh T, Ward R, Hawkins N, Beranek M, Jandik P, Benamouzig R, Jullian E, Laurent-Puig P, Olschwang S, Muller O, Hoffmann I, Rabes HM, Zietz C, Troungos C, Valavanis C, Yuen ST, Ho JW, Croke CT et al. (2001)
Kirsten ras mutations in patients with colorectal cancer: the 'RASCAL II' study
Br J Cancer, 85 (5), 692-6
DOI 10.1054/bjoc.2001.1964, PubMed 11531254

Clausen OP, Andersen SN, Strøomkjaer H, Nielsen V, Rognum TO, Bolund L, Køolvraa S (2001)
A strategy combining flow sorting and comparative genomic hybridization for studying genetic aberrations at different stages of colorectal tumorigenesis in ulcerative colitis
Cytometry, 43 (1), 46-54
DOI 10.1002/1097-0320(20010101)43:1<46::AID-CYTO1018>3.0.CO;2-U, PubMed 11122484

De Angelis PM, Stokke T, Beigi M, Mjåland O, Clausen OP (2001)
Prognostic significance of recurrent chromosomal aberrations detected by comparative genomic hybridization in sporadic colorectal cancer
Int J Colorectal Dis, 16 (1), 38-45
DOI 10.1007/s003840000275, PubMed 11317696

Fleming KA, Boberg KM, Glaumann H, Bergquist A, Smith D, Clausen OP (2001)
Biliary dysplasia as a marker of cholangiocarcinoma in primary sclerosing cholangitis
J Hepatol, 34 (3), 360-5
DOI 10.1016/S0168-8278(00)00034-9, PubMed 11322195

Nielsen T, Fricke M, Hellweg D, Andresen P (2001)
High efficiency beam splitter for multifocal multiphoton microscopy
J Microsc, 201 (Pt 3), 368-76
PubMed 11240852

Oldereid NB, Angelis PD, Wiger R, Clausen OP (2001)
Expression of Bcl-2 family proteins and spontaneous apoptosis in normal human testis
Mol Hum Reprod, 7 (5), 403-8
DOI 10.1093/molehr/7.5.403, PubMed 11331661

Soetebeer UB, Schierenberg MO, Schulz H, Andresen P, Blaschke G (2001)
Direct chiral assay of tramadol and detection of the phase II metabolite O-demethyl tramadol glucuronide in human urine using capillary electrophoresis with laser-induced native fluorescence detection
J Chromatogr B Biomed Sci Appl, 765 (1), 3-13
PubMed 11817307

Soetebeer UB, Schierenberg MO, Schulz H, Hempel G, Andresen P, Blaschke G (2001)
Simultaneous quantification of etoposide and etoposide phosphate in human plasma by capillary electrophoresis using laser-induced native fluorescence detection
Anal Chem, 73 (10), 2178-82
PubMed 11393838

Publications 2000

Andresen P, Mosekilde E, Dewel G, Borckmans P (2000)
Comment on "Flow-distributed oscillations: stationary chemical waves in a reacting flow"
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics, 62 (2 Pt B), 2992-3
PubMed 11088791

Andresen P, Thissen T, Spiecker H (2000)
The Microwave Spectrum of the OH X(2)Pi Radical in Its First Vibrationally Excited State (v = 1)
J Mol Spectrosc, 200 (2), 277-279
DOI 10.1006/jmsp.1999.8051, PubMed 10708541

Bees MA, Andresén P, Mosekilde E, Givskov M (2000)
The interaction of thin-film flow, bacterial swarming and cell differentiation in colonies of Serratia liquefaciens
J Math Biol, 40 (1), 27-63
PubMed 10663662

Bergan A, Gladhaug IP, Schjolberg A, Bergan AB, Clausen OP (2000)
p53 accumulation confers prognostic information in resectable adenocarcinomas with ductal but not with intestinal differentiation in the pancreatic head
Int J Oncol, 17 (5), 921-6
DOI 10.3892/ijo.17.5.921, PubMed 11029493

Boberg KM, Schrumpf E, Bergquist A, Broomé U, Pares A, Remotti H, Schjölberg A, Spurkland A, Clausen OP (2000)
Cholangiocarcinoma in primary sclerosing cholangitis: K-ras mutations and Tp53 dysfunction are implicated in the neoplastic development
J Hepatol, 32 (3), 374-80
DOI 10.1016/S0168-8278(00)80386-4, PubMed 10735605

Clausen OP, Olsen G, Tjønnfjord GE (2000)
[Flow cytometry--use in cell biology and benefits in clinical medicine]
Tidsskr Nor Laegeforen, 120 (4), 489-95
PubMed 10833942

Gembitsky DS, De Angelis PM, Reichelt KL, Elgjo K (2000)
An endogenous melanocyte-inhibiting tripeptide pyroGlu-Phe-GlyNH2 delays in vivo growth of monoclonal experimental melanoma
Cell Prolif, 33 (2), 91-9
DOI 10.1046/j.1365-2184.2000.00166.x, PubMed 10845253

Gjersvik P, Egass E, Clausen OP (2000)
Grzybowski's generalized eruptive keratocanthomas: a case report
Eur J Dermatol, 10 (2), 135-8
PubMed 10694314

Nordrum I, Eide TJ, JŁrgensen L (2000)
Alcohol in a series of medico-legally autopsied deaths in northern Norway 1973-1992
Forensic Sci Int, 110 (2), 127-37
DOI 10.1016/S0379-0738(00)00163-8, PubMed 10808101

Oie E, Bjørnerheim R, Clausen OP, Attramadal H (2000)
Cyclosporin A inhibits cardiac hypertrophy and enhances cardiac dysfunction during postinfarction failure in rats
Am J Physiol Heart Circ Physiol, 278 (6), H2115-23
DOI 10.1152/ajpheart.2000.278.6.H2115, PubMed 10843911

Paulsen JE, Namork E, Steffensen IL, Eide TJ, Alexander J (2000)
Identification and quantification of aberrant crypt foci in the colon of Min mice--a murine model of familial adenomatous polyposis
Scand J Gastroenterol, 35 (5), 534-9
PubMed 10868458

Soetebeer UB, Schierenberg MO, Möller JG, Schulz H, Grünefeld G, Andresen P, Blaschke G, Ahr G (2000)
Capillary electrophoresis with laser-induced fluorescence in clinical drug development routine application and future aspects
J Chromatogr A, 895 (1-2), 147-55
PubMed 11105856

Soetebeer UB, Schierenberg MO, Schulz H, Grünefeld G, Andresen P, Blaschke G (2000)
Assay of tramadol in urine by capillary electrophoresis using laser-induced native fluorescence detection
J Chromatogr B Biomed Sci Appl, 745 (2), 271-8
PubMed 11043746

Steffensen IL, Fretland AJ, Paulsen JE, Feng Y, Eide TJ, Devanaboyina US, Hein DW, Alexander J (2000)
DNA adduct levels and intestinal lesions in congenic rapid and slow acetylator syrian hamsters admi food mutagens 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) or 2-amino-3-methylimidazo[4,5-f]quinoline (IQ)
Pharmacol Toxicol, 86 (6), 257-63
DOI 10.1111/j.0901-9928.2000.860603.x, PubMed 10895988

Publications 1999

Andersen SN, Lovig T, Clausen OP, Bakka A, Fausa O, Rognum TO (1999)
Villous, hypermucinous mucosa in long standing ulcerative colitis shows high frequency of K-ras mutations
Gut, 45 (5), 686-92
DOI 10.1136/gut.45.5.686, PubMed 10517904

Andresén P, Bache M, Mosekilde E, Dewel G, Borckmanns P (1999)
Stationary space-periodic structures with equal diffusion coefficients
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics, 60 (1), 297-301
PubMed 11969763

Andresen U, Kietzmann M, Andresen P (1999)
[Efficacy and tolerance of a calcium-magnesium-aspartate solution in the treatment of hypocalcemic parturient paresis in cows]
Berl Munch Tierarztl Wochenschr, 112 (10-11), 400-6
PubMed 10598359

De Angelis PM, Clausen OP, Schjølberg A, Stokke T (1999)
Chromosomal gains and losses in primary colorectal carcinomas detected by CGH and their associations with tumour DNA ploidy, genotypes and phenotypes
Br J Cancer, 80 (3-4), 526-35
DOI 10.1038/sj.bjc.6690388, PubMed 10408863

Flaegstad T, Andresen PA, Johnsen JI, Asomani SK, Jørgensen GE, Vignarajan S, Kjuul A, Kogner P, Traavik T (1999)
A possible contributory role of BK virus infection in neuroblastoma development
Cancer Res, 59 (5), 1160-3
PubMed 10070978

Jensen P, Clausen OP, Bryne M (1999)
Differences in sialyl-Tn antigen expression between keratoacanthomas and cutaneous squamous cell carcinomas
J Cutan Pathol, 26 (4), 183-9
DOI 10.1111/j.1600-0560.1999.tb01826.x, PubMed 10335895

Xie X, Boysen M, Clausen OP, Bryne MA (1999)
Prognostic value of Le(y) and H antigens in oral tongue carcinomas
Laryngoscope, 109 (9), 1474-80
DOI 10.1097/00005537-199909000-00022, PubMed 10499058

Xie X, Clausen OP, De Angelis P, Boysen M (1999)
The prognostic value of spontaneous apoptosis, Bax, Bcl-2, and p53 in oral squamous cell carcinoma of the tongue
Cancer, 86 (6), 913-20
DOI 10.1002/(sici)1097-0142(19990915)86:6<913::aid-cncr4>3.0.co;2-a, PubMed 10491515

Xie X, De Angelis P, Clausen OP, Boysen M (1999)
Prognostic significance of proliferative and apoptotic markers in oral tongue squamous cell carcinomas
Oral Oncol, 35 (5), 502-9
DOI 10.1016/S1368-8375(99)00024-X, PubMed 10694951

Publications 1998

Aksnes J, Eide TJ, Nordstrand K (1998)
Pulmonary intravascular macrophages appear in rats after long-term administration of lipid emulsion and amino acid solution. An ultrastructural morphometric study
APMIS, 106 (7), 687-92
DOI 10.1111/j.1699-0463.1998.tb00212.x, PubMed 9740506

Andersen SN, Rognum TO, Bakka A, Clausen OP (1998)
Ki-67: a useful marker for the evaluation of dysplasia in ulcerative colitis
Mol Pathol, 51 (6), 327-32
DOI 10.1136/mp.51.6.327, PubMed 10193513

Bredahl L, Andresen P (1998)
Immunology and immunotherapy of bovine ringworm
Tierarztl. Umsch., 53 (12), 739-741

Clausen OP, Lothe RA, Børresen-Dale AL, De Angelis P, Chen Y, Rognum TO, Meling GI (1998)
Association of p53 accumulation with TP53 mutations, loss of heterozygosity at 17p13, and DNA ploidy status in 273 colorectal carcinomas
Diagn Mol Pathol, 7 (4), 215-23
DOI 10.1097/00019606-199808000-00006, PubMed 9917132

De Angelis PM, Stokke T, Thorstensen L, Lothe RA, Clausen OP (1998)
Apoptosis and expression of Bax, Bcl-x, and Bcl-2 apoptotic regulatory proteins in colorectal carcinomas, and association with p53 genotype/phenotype
Mol Pathol, 51 (5), 254-61
DOI 10.1136/mp.51.5.254, PubMed 10193519

Jensen P, Huang YQ, Li JJ, Clausen OP, Friedman-Kien AE (1998)
Herpes virus-like DNA (HHV-8) in immunosuppressive therapy-related, HIV-related and classical Kaposi's sarcoma in Norwegian patients
Acta Derm Venereol, 78 (3), 205-6
PubMed 9602228

Lehne G, De Angelis P, Clausen OP, Rugstad HE (1998)
Differential resistance to anthracyclines in P-glycoprotein-expressing human hepatoma cells
Int J Clin Pharmacol Ther, 36 (2), 89-92
PubMed 9520154

Nordrum I, Eide TJ, Jørgensen L (1998)
Unexplained and explained natural deaths among persons above 1 year of age in a series of medico-legal autopsies
Forensic Sci Int, 93 (2-3), 89-98
DOI 10.1016/S0379-0738(98)00033-4, PubMed 9717261

Nordrum I, Eide TJ, Jørgensen L (1998)
Medicolegal autopsies of violent deaths in northern Norway 1972-1992
Forensic Sci Int, 92 (1), 39-48
DOI 10.1016/S0379-0738(98)00004-8, PubMed 9627974

Trondsen E, Rosseland AR, Bakka A, Ruud TE, Martinsen T, Clausen OP, Bergan A, Aasen AO (1998)
An experimental study on effects of monopolar diathermy on the bile ducts
Eur J Surg, 164 (4), 297-303
DOI 10.1080/110241598750004535, PubMed 9641372

Xie X, Clausen OP, De Angelis P, Boysen M (1998)
Bax expression has prognostic significance that is enhanced when combined with AgNOR counts in glottic carcinomas
Br J Cancer, 78 (1), 100-5
DOI 10.1038/bjc.1998.449, PubMed 9662258

Publications 1997

C Bormann F, Nielsen T, Burrows M, Andresen P (1997)
Picosecond planar laser-induced fluorescence measurements of OH A 2 + ( ' = 2) lifetime and energy transfer in atmospheric pressure flames
Appl Opt, 36 (24), 6129-40
PubMed 18259461

De Angelis PM, Stokke T, Clausen OP (1997)
NO38 expression and nucleolar counts are correlated with cellular DNA content but not with proliferation parameters in colorectal carcinomas
Mol Pathol, 50 (4), 201-8
DOI 10.1136/mp.50.4.201, PubMed 9350304

Fjeld JG, Erichsen K, Pfeffer PF, Clausen OP, Rootwelt K (1997)
Technetium-99m-tetrofosmin for parathyroid scintigraphy: a comparison with sestamibi
J Nucl Med, 38 (6), 831-4
PubMed 9189124

Fosså SD, De Angelis P, Kraggerud SM, Evenson D, Theodorsen L, Clausen OP (1997)
Prediction of posttreatment spermatogenesis in patients with testicular cancer by flow cytometric sperm chromatin structure assay
Cytometry, 30 (4), 192-6
PubMed 9298838

Jørgensen N, Müller J, Jaubert F, Clausen OP, Skakkebaek NE (1997)
Heterogeneity of gonadoblastoma germ cells: similarities with immature germ cells, spermatogonia and testicular carcinoma in situ cells
Histopathology, 30 (2), 177-86
DOI 10.1046/j.1365-2559.1997.d01-580.x, PubMed 9190360

Lange D, Heyden A, Lie E, Brandtzaeg P, Boysen M, Clausen O (1997)
Lack of prognostic significance for p53-overexpression and Ki-67-immunoreactivity in oral T1-2 squamous cell carcinomas
Oncol Rep, 4 (4), 737-42
DOI 10.3892/or.4.4.737, PubMed 21590131

Nielsen T, Bormann F, Burrows M, Andresen P (1997)
Picosecond laser-induced fluorescence measurement of rotational energy transfer of OH A (2)?(+) (v? = 2) in atmospheric pressure flames
Appl Opt, 36 (30), 7960-9
PubMed 18264324

Oyen O, Clausen OP, Brekke IB, Bakka A, Pope FM (1997)
Spontaneous rupture of the renal artery in a patient with Ehlers-Danlos syndrome type IV
Eur J Vasc Endovasc Surg, 13 (5), 509-12
DOI 10.1016/S1078-5884(97)80180-3, PubMed 9166275

Rothe EW, Andresen P (1997)
Application of tunable excimer lasers to combustion diagnostics: a review
Appl Opt, 36 (18), 3971-4033
PubMed 18253423

Steffensen IL, Paulsen JE, Eide TJ, Alexander J (1997)
2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridine increases the numbers of tumors, cystic crypts and aberrant crypt foci in multiple intestinal neoplasia mice
Carcinogenesis, 18 (5), 1049-54
DOI 10.1093/carcin/18.5.1049, PubMed 9163695

Trondsen E, Rosseland AR, Clausen OP, Bakka A, Engh E, Rødland EA, Aasen AO (1997)
An experimental study on effects of occlusion of the cystic duct in mice with or without emptying of the gallbladder
Eur Surg Res, 29 (2), 150-8
DOI 10.1159/000129519, PubMed 9058083

Xie X, Clausen OP, Sudbö J, Boysen M (1997)
Diagnostic and prognostic value of nucleolar organizer regions in normal epithelium, dysplasia, and squamous cell carcinoma of the oral cavity
Cancer, 79 (11), 2200-8
DOI 10.1002/(SICI)1097-0142(19970601)79:11<2200::AID-CNCR19>3.0.CO;2-#, PubMed 9179068

Xie X, Stenersen TC, Clausen OP, Boysen M (1997)
Nucleolar organizer regions and prognosis in glottic squamous cell carcinoma
Head Neck, 19 (1), 20-6
DOI 10.1002/(SICI)1097-0347(199701)19:1<20::AID-HED4>3.0.CO;2-X, PubMed 9030940

Publications 1996

Aksnes J, Eide TJ, Nordstrand K (1996)
Lipid entrapment and cellular changes in the rat myocard, lung and liver after long-term parenteral nutrition with lipid emulsion. A light microscopic and ultrastructural study
APMIS, 104 (7-8), 515-22
DOI 10.1111/j.1699-0463.1996.tb04906.x, PubMed 8920804

Brockhinke A, Kohse-Höinghaus K, Andresen P (1996)
Double-pulse one-dimensional Raman and Rayleigh measurements for the detection of temporal and spatial structures in a turbulent H(2)-air diffusion flame
Opt Lett, 21 (24), 2029-31
PubMed 19881882

Gölz P, Andresen P (1996)
Atomic vapor filter for two-dimensional Rayleigh imaging experiments with a narrow-band KrF excimer laser
Appl Opt, 35 (30), 6054-61
DOI 10.1364/AO.35.006054, PubMed 21127620

Knapp M, Luczak A, Schlüter H, Beushausen V, Hentschel W, Andresen P (1996)
Crank-angle-resolved laser-induced fluorescence imaging of NO in a spark-ignition engine at 248 nm and correlations to flame front propagation and pressure release
Appl Opt, 35 (21), 4009-17
DOI 10.1364/AO.35.004009, PubMed 21102804

Lehne G, De Angelis P, Clausen OP, Rugstad HE (1996)
Human hepatoma cells rich in P-glycoprotein are sensitive to aclarubicin and resistant to three other anthracyclines
Br J Cancer, 74 (11), 1719-29
DOI 10.1038/bjc.1996.621, PubMed 8956784

Lützow-Holm C, De Angelis P, Clausen OP (1996)
Calcitriol and its analog KH 1060 induce similar changes in keratinocyte cell cycle progression after topical application to mouse skin. A bromodeoxyuridine pulse-chase flow cytometric study
J Investig Dermatol Symp Proc, 1 (1), 54-9
PubMed 9627693

Nordrum I, Eide TJ, Jørgensen L (1996)
Forensic pathology in northern Norway. Requested medico-legal autopsies in the counties of Finnmark and Troms 1973-1992
APMIS, 104 (6), 465-74
DOI 10.1111/j.1699-0463.1996.tb00743.x, PubMed 8774677

Norheim Andersen S, Breivik J, Løvig T, Meling GI, Gaudernack G, Clausen OP, Schjölberg A, Fausa O, Langmark F, Lund E, Rognum TO (1996)
K-ras mutations and HLA-DR expression in large bowel adenomas
Br J Cancer, 74 (1), 99-108
DOI 10.1038/bjc.1996.322, PubMed 8679466

Publications 1995

Andresen PA (1995)
Expanding services through student placements: Strategies for the home health administrator
J Nurs Adm, 25 (6), 29-32
PubMed 7776004

De Angelis P, Stokke T, Smedshammer L, Lothe RA, Lehne G, Chen Y, Clausen OP (1995)
P-glycoprotein is not expressed in a majority of colorectal carcinomas and is not regulated by mutant p53 in vivo
Br J Cancer, 72 (2), 307-11
DOI 10.1038/bjc.1995.329, PubMed 7640210

Endresen PC, Fandrem J, Eide TJ, Aarbakke J (1995)
Morphological modifications of apoptosis in HL-60 cells: effects of homocysteine and cytochalasins on apoptosis initiated by 3-deazaadenosine
Virchows Arch, 426 (3), 257-66
PubMed 7773505

Evenson D, Jost L, Gandour D, Rhodes L, Stanton B, Clausen OP, De Angelis P, Coico R, Daley A, Becker K (1995)
Comparative sperm chromatin structure assay measurements on epiillumination and orthogonal axes flow cytometers
Cytometry, 19 (4), 295-303
DOI 10.1002/cyto.990190403, PubMed 7796694

Franzén G, Nordgård S, Boysen M, Larsen PL, Halvorsen TB, Clausen OP (1995)
DNA content in adenoid cystic carcinomas
Head Neck, 17 (1), 49-55
DOI 10.1002/hed.2880170111, PubMed 7883549

Hauer-Jensen M, Skjonsberg G, Moen E, Clausen OP (1995)
Intestinal morphology and cytokinetics in pancreatic insufficiency. An experimental study in the rat
Dig Dis Sci, 40 (10), 2170-6
DOI 10.1007/BF02209001, PubMed 7587784

Heyden A, Lützow-Holm C, Clausen OP, Brandtzaeg P, Huitfeldt HS (1995)
Topical application of 12-O-tetradecanoylphorbol-13-acetate induces dyssynchronous expression of keratins K1 and K10 in mouse epidermis
Cytometry, 19 (4), 313-9
DOI 10.1002/cyto.990190405, PubMed 7540972

Jensen P, Clausen OP, Geiran O, Simonsen S, Relbo A, Hansen S, Langeland T (1995)
Cutaneous complications in heart transplant recipients in Norway 1983-1993
Acta Derm Venereol, 75 (5), 400-3
DOI 10.2340/0001555575400403, PubMed 8615064

Jørgensen PF, Brekke IB, Bakka A, Clausen OP (1995)
[Severe mucormycosis after organ transplantation. Report of a case]
Tidsskr Nor Laegeforen, 115 (19), 2392-4
PubMed 7667856

Lehne G, De Angelis P, Clausen OP, Egeland T, Tsuruo T, Rugstad HE (1995)
Binding diversity of antibodies against external and internal epitopes of the multidrug resistance gene product P-glycoprotein
Cytometry, 20 (3), 228-37
DOI 10.1002/cyto.990200306, PubMed 7587708

Lützow-Holm C, De Angelis P, Clausen OP (1995)
Topical application of retinoic acid induces murine epidermal proliferation without reducing the cell cycle time. A bivariate BrdUrd/DNA flow cytometric study
Epithelial Cell Biol, 4 (1), 2-7
PubMed 8563792

Lützow-Holm C, Heyden A, Huitfeldt HS, Brandtzaeg P, Clausen OP (1995)
Topical application of calcitriol alters expression of filaggrin but not keratin K1 in mouse epidermis
Arch Dermatol Res, 287 (5), 480-7
DOI 10.1007/BF00373432, PubMed 7542861

Nordrum I, Eide TJ (1995)
Remote frozen section service in Norway
Arch Anat Cytol Pathol, 43 (4), 253-6
PubMed 8526562

Rønning G, Revhaug A, Størmer J, Eide TJ, Lindal S (1995)
Cystic lymphangioma of the small bowel mesentery
Eur J Surg, 161 (3), 203-5
PubMed 7599300

Xie X, Stenersen T, Clausen O, Boysen M (1995)
Stereologic estimation of nuclear volume in glottic squamous-cell carcinoma
Oncol Rep, 2 (6), 1049-54
DOI 10.3892/or.2.6.1049, PubMed 21597851

Zeller B, Westvik J, Clausen OP, Selberg T (1995)
[Fibrodysplasia (myositis) ossificans progressiva]
Tidsskr Nor Laegeforen, 115 (28), 3496-8
PubMed 7491602

Publications 1994

Andresen P, Randt A, Grunert E (1994)
[Simulation of an extrauterine pregnancy by a fatty tissue tumor in a Galloway cow]
Tierarztl Prax, 22 (2), 125-7
PubMed 8209360

Bang G, Donath K, Thoresen S, Clausen OP (1994)
DNA flow cytometry of reclassified subtypes of malignant salivary gland tumors
J Oral Pathol Med, 23 (7), 291-7
DOI 10.1111/j.1600-0714.1994.tb00064.x, PubMed 7965883

Eide TJ, Nordrum I (1994)
Current status of telepathology
APMIS, 102 (12), 881-90
DOI 10.1111/j.1699-0463.1994.tb05249.x, PubMed 7888156

Giwercman A, Clausen OP, Bruun E, Frimodt-Moller C, Skakkebaek NE (1994)
The value of quantitative DNA flow cytometry of testicular fine-needle aspirates in assessment of spermatogenesis: a study of 137 previously maldescended human testes
Int J Androl, 17 (1), 35-42
DOI 10.1111/j.1365-2605.1994.tb01206.x, PubMed 7911790

Heyden A, Lützow-Holm C, Clausen OP, Brandtzaeg P, Huitfeldt HS (1994)
Expression of keratins K6 and K16 in regenerating mouse epidermis is less restricted by cell replication than the expression of K1 and K10
Epithelial Cell Biol, 3 (3), 96-101
PubMed 7534576

Heyden A, Lützow-Holm C, Clausen OP, Thrane EV, Brandtzaeg P, Roop DR, Yuspa SH, Huitfeldt HS (1994)
Application of cantharidin or 12-O-tetradecanoylphorbol-13-acetate on mouse epidermis induces a cell population shift that causes altered keratin distribution
Differentiation, 57 (3), 187-93
DOI 10.1046/j.1432-0436.1994.5730187.x, PubMed 7527355

Lehne G, Deangelis P, Clausen O, Hall K, Huitfeldt H, Rugstad H (1994)
Pharmacokinetics and cytotoxicity of epirubicin (epi) in drug-resistant human hepatoma-cells (hb8065)
Int J Oncol, 4 (6), 1229-35
DOI 10.3892/ijo.4.6.1229, PubMed 21567042

Lie ES, Engh V, Boysen M, Clausen OP, Kvernvold H, Stenersen TC, Winther FO (1994)
Squamous cell carcinoma of the respiratory tract following laryngeal papillomatosis
Acta Otolaryngol, 114 (2), 209-12
DOI 10.3109/00016489409126044, PubMed 7515551

Lützow-Holm C, Heyden A, Huitfeldt HS, Brandtzaeg P, Clausen OP (1994)
Differential effects of topical retinoic acid application on keratin K1 and filaggrin expression in mouse epidermis
Differentiation, 57 (3), 179-85
DOI 10.1046/j.1432-0436.1994.5730179.x, PubMed 7527354

Rønning G, Eide TJ, Lindal S (1994)
[Cystic lymphangioma of the mesentery]
Tidsskr Nor Laegeforen, 114 (7), 793-4
PubMed 8009497

Smeland E, Bremnes RM, Andersen A, Jaeger R, Eide TJ, Huseby NE, Aarbakke J (1994)
Renal and hepatic toxicity after high-dose 7-hydroxymethotrexate in the rat
Cancer Chemother Pharmacol, 34 (2), 119-24
PubMed 8194163

Xie X, Stenersen T, Larsen P, Clausen O, Boysen M (1994)
Prognostic value of nuclear volume in adenoid cystic carcinoma of the head and neck
Oncol Rep, 1 (2), 427-32
PubMed 21607379

Zdunczyk S, Andresen P, Janowski T, Chmielewski A (1994)
[The effectiveness of intravaginal administration of estrumate for cows in silent heat in relation to the progesterone concentration in the blood]
Dtsch Tierarztl Wochenschr, 101 (11), 440-1
PubMed 7895624

Publications 1993

Deangelis P, Stokke T, Smedshammer L, Lothe R, Meling G, Rofstad M, Chen Y, Clausen O (1993)
P53 expression is associated with a high-degree of tumor DNA aneuploidy and incidence of p53 gene mutation, and is localized to the aneuploid component in colorectal carcinomas
Int J Oncol, 3 (2), 305-12
DOI 10.3892/ijo.3.2.305, PubMed 21573365

Endresen PC, Eide TJ, Aarbakke J (1993)
Cell death initiated by 3-deazaadenosine in HL-60 cells is apoptosis and is partially inhibited by homocysteine
Biochem Pharmacol, 46 (11), 1893-901
DOI 10.1016/0006-2952(93)90629-b, PubMed 8267639

Engh E, Clausen OP, Purvis K, Stien R (1993)
Sperm quality assessed by flow cytometry and accessory sex gland function in spinal cord injured men after repeated vibration-induced ejaculation
Paraplegia, 31 (1), 3-12
DOI 10.1038/sc.1993.2, PubMed 7680446

Engh E, Schølberg A, Clausen OP, Purvis K (1993)
DNA flow cytometry of sperm from normozoospermic men in barren couples and men of proven fertility
Int J Fertil Menopausal Stud, 38 (5), 305-10
PubMed 8298671

Lützow-Holm C, De Angelis P, Grøsvik H, Clausen OP (1993)
1,25-Dihydroxyvitamin D3 and the vitamin D analogue KH1060 induce hyperproliferation in normal mouse epidermis. A BrdUrd/DNA flow cytometric study
Exp Dermatol, 2 (3), 113-20
PubMed 8162327

Meling GI, Lothe RA, Børresen AL, Graue C, Hauge S, Clausen OP, Rognum TO (1993)
The TP53 tumour suppressor gene in colorectal carcinomas. I. Genetic alterations on chromosome 17
Br J Cancer, 67 (1), 88-92
DOI 10.1038/bjc.1993.14, PubMed 8094008

Meling GI, Lothe RA, Børresen AL, Graue C, Hauge S, Clausen OP, Rognum TO (1993)
The TP53 tumour suppressor gene in colorectal carcinomas. II. Relation to DNA ploidy pattern and clinicopathological variables
Br J Cancer, 67 (1), 93-8
DOI 10.1038/bjc.1993.15, PubMed 8427784

Reckers W, Hüwel L, Grünefeld G, Andresen P (1993)
Spatially resolved multispecies and temperature analysis in hydrogen flames
Appl Opt, 32 (6), 907-24
DOI 10.1364/AO.32.000907, PubMed 20802766

Sandsmark M, Eskeland G, Ogaard AR, Abyholm F, Clausen OP (1993)
Treatment of large congenital naevi. A review and report of six cases
Scand J Plast Reconstr Surg Hand Surg, 27 (3), 223-32
DOI 10.3109/02844319309078115, PubMed 8272774

Schlichting E, Clausen OP, Hanssen AS, Buanes TA (1993)
Ploidy and survival in resectable pancreatic cancers. A retrospective study over 9 years
Eur J Surg, 159 (4), 229-33
PubMed 8102544

Sutton TD, Eide TJ, Jass JR (1993)
Trends in colorectal cancer incidence and histologic findings in Maori and Polynesian residents of New Zealand
Cancer, 71 (12), 3839-45
DOI 10.1002/1097-0142(19930615)71:12<3839::aid-cncr2820711208>3.0.co;2-d, PubMed 8389651

Aarnaes E, Clausen OP, Kirkhus B, De Angelis P (1993)
Heterogeneity in the mouse epidermal cell cycle analysed by computer simulations
Cell Prolif, 26 (3), 205-19
DOI 10.1111/j.1365-2184.1993.tb00020.x, PubMed 8324071

Publications 1992

Andresen P, Schlüter H, Wolff D, Voges H, Koch A, Hentschel W, Oppermann W, Rothe E (1992)
Identification and imaging of OH (nu'' = O) and O(2) (nu'' = 6 or 7) in an automobile spark-ignition engine using a tunable KrF excimer laser
Appl Opt, 31 (36), 7684-9
DOI 10.1364/AO.31.007684, PubMed 20802649

Andresen PA, McDermott MA (1992)
Client satisfaction with student care in a nurse-managed center
Nurse Educ, 17 (3), 21-3
PubMed 1518571

Andresen PA, Telleen SL (1992)
The relationship between social support and maternal behaviors and attitudes: a meta-analytic review
Am J Community Psychol, 20 (6), 753-74
PubMed 1302448

Clausen OP, Berg KA, Kirkhus B, De Angelis P, Huitfeldt H (1992)
BrdUrd incorporation studies for evaluation of spermatogenesis in the blue fox
Cytometry, 13 (4), 374-80
DOI 10.1002/cyto.990130407, PubMed 1526196

Eide TJ, Järvinen M, Hopsu-Havu VK, Maltau J, Rinne A (1992)
Immunolocalization of cystatin A in neoplastic, virus and inflammatory lesions of the uterine cervix
Acta Histochem, 93 (1), 241-8
DOI 10.1016/S0065-1281(11)80215-1, PubMed 1326833

Eide TJ, Nordrum I (1992)
Frozen section service via the telenetwork in northern Norway
Zentralbl Pathol, 138 (6), 409-12
PubMed 1297433

Eide TJ, Nordrum I, Stalsberg H (1992)
The validity of frozen section diagnosis based on video-microscopy
Zentralbl Pathol, 138 (6), 405-7
PubMed 1297432

Engh E, Clausen OP, Scholberg A, Tollefsrud A, Purvis K (1992)
Relationship between sperm quality and chromatin condensation measured by sperm DNA fluorescence using flow cytometry
Int J Androl, 15 (5), 407-15
DOI 10.1111/j.1365-2605.1992.tb01355.x, PubMed 1428199

Kirkhus B, Clausen OP (1992)
Circadian variations in cell cycle phase progression of mouse epidermal cells measured directly by bivariate BrdUrd/DNA flow cytometry
Epithelial Cell Biol, 1 (1), 32-8
PubMed 1307935

Kirkhus B, Glasø M, Clausen OP (1992)
Multivariate flow cytometry of epidermal regeneration provoked by a skin irritant and a tumor promoter
Cytometry, 13 (3), 267-74
DOI 10.1002/cyto.990130308, PubMed 1576892

Lützow-Holm C, De Angelis P, Clausen OP (1992)
Retinoic acid provokes a regeneration-like proliferative response in murine epidermis. A bivariate DNA/bromodeoxyuridine flow cytometric study
Arch Dermatol Res, 284 (7), 418-23
DOI 10.1007/BF00372073, PubMed 1288424

Meling GI, Rognum TO, Clausen OP, Børmer O, Lunde OC, Schlichting E, Grüner OP, Hognestad J, Trondsen E, Havig O (1992)
Serum carcinoembryonic antigen in relation to survival, DNA ploidy pattern, and recurrent disease in 406 colorectal carcinoma patients
Scand J Gastroenterol, 27 (12), 1061-8
DOI 10.3109/00365529209028139, PubMed 1475624

Publications 1991

Andresen P (1991)
[Treatment of blisters and risk of AIDS]
Ugeskr Laeger, 153 (38), 2646
PubMed 1949280

Bremnes RM, Smeland E, Huseby NE, Eide TJ, Aarbakke J (1991)
Acute hepatotoxicity after high-dose methotrexate administration to rats
Pharmacol Toxicol, 69 (2), 132-9
DOI 10.1111/j.1600-0773.1991.tb01286.x, PubMed 1775433

Clausen OP (1991)
[Should DNA separation analyses be a routine in all pathological laboratories?]
Tidsskr Nor Laegeforen, 111 (13), 1609-10
PubMed 2063353

Clausen OP, Giwercman A, Jørgensen N, Bruun E, Frimodt-Møller C, Skakkebaek NE (1991)
DNA distributions in maldescended testes: hyperdiploid aneuploidy without evidence of germ cell neoplasia
Cytometry, 12 (1), 77-81
DOI 10.1002/cyto.990120111, PubMed 1671832

Eide TJ (1991)
Natural history of adenomas
World J Surg, 15 (1), 3-6
DOI 10.1007/BF01658952, PubMed 1994603

Eide TJ, Nordrum I, Engum B, Rinde E (1991)
[Use of telecommunications in pathology and anatomy services]
Tidsskr Nor Laegeforen, 111 (1), 17-9
PubMed 2000579

Eide TJ, Viste A, Andersen A, Søoreide O (1991)
The risk of cancer at all sites following gastric operation for benign disease. A cohort study of 4,224 patients
Int J Cancer, 48 (3), 333-9
DOI 10.1002/ijc.2910480304, PubMed 2040526

Elgjo K, Reichelt KL, Clausen OP, de Angelis P (1991)
Inhibitory epidermal pentapeptide modulates proliferation and differentiation of transformed mouse epidermal cells in vitro
Virchows Arch B Cell Pathol Incl Mol Pathol, 60 (3), 161-4
PubMed 1679266

Engh E, Clausen OP, Purvis K (1991)
Acrosomal integrity assessed by flow cytometry in men with variable sperm quality
Hum Reprod, 6 (8), 1129-34
DOI 10.1093/oxfordjournals.humrep.a137498, PubMed 1806574

Engh V, Eide TJ (1991)
[Occurrence of recurrence after regression of low-grade dysplasia in vaginal cytological smears]
Tidsskr Nor Laegeforen, 111 (3), 328-9
PubMed 2000616

Hall KS, Lien B, Mørkrid L, Clausen OP, Bergan A, Rugstad HE (1991)
Long-term toxicity of preoperative 4'-epidoxorubicin (Epi-adriamycin) in partially hepatectomized rats
Eur Surg Res, 23 (2), 114-22
DOI 10.1159/000129143, PubMed 1936080

Huitfeldt HS, Heyden A, Clausen OP, Thrane EV, Roop D, Yuspa SH (1991)
Altered regulation of growth and expression of differentiation-associated keratins in benign mouse skin tumors
Carcinogenesis, 12 (11), 2063-7
DOI 10.1093/carcin/12.11.2063, PubMed 1718620

Kirkhus B, Olsen WM, Clausen OP (1991)
A comparison between the epidermal regenerative responses provoked by a skin irritant and a tumor promoter using anti-BrdUrd/DNA flow cytometry
Carcinogenesis, 12 (5), 833-7
DOI 10.1093/carcin/12.5.833, PubMed 2029747

Meling GI, Clausen OP, Bergan A, Schjølberg A, Rognum TO (1991)
Flow cytometric DNA ploidy pattern in dysplastic mucosa, and in primary and metastatic carcinomas in patients with longstanding ulcerative colitis
Br J Cancer, 64 (2), 339-44
DOI 10.1038/bjc.1991.302, PubMed 1892760

Meling GI, Lothe RA, Børresen AL, Hauge S, Graue C, Clausen OP, Rognum TO (1991)
Genetic alterations within the retinoblastoma locus in colorectal carcinomas. Relation to DNA ploidy pattern studied by flow cytometric analysis
Br J Cancer, 64 (3), 475-80
DOI 10.1038/bjc.1991.334, PubMed 1911187

Meling GI, Rognum TO, Clausen OP, Chen Y, Lunde OC, Schlichting E, Wiig JN, Hognestad J, Bakka A, Havig O (1991)
Association between DNA ploidy pattern and cellular atypia in colorectal carcinomas. A new clinical application of DNA flow cytometric study?
Cancer, 67 (6), 1642-9
DOI 10.1002/1097-0142(19910315)67:6<1642::aid-cncr2820670628>3.0.co;2-r, PubMed 2001553

Nordrum I, Engum B, Rinde E, Finseth A, Ericsson H, Kearney M, Stalsberg H, Eide TJ (1991)
Remote frozen section service: a telepathology project in northern Norway
Hum Pathol, 22 (6), 514-8
DOI 10.1016/0046-8177(91)90226-F, PubMed 1864583

Vatn MH, Hoff G, Clausen OP (1991)
Epidemiology and histopathogenesis of colorectal cancer
Eur J Cancer Prev, 1 Suppl 2, 5-12
PubMed 1842733

Publications 1990

Andersen Berg K, Clausen OP, Huitfeldt HS (1990)
The spermatogenic cycle in the blue fox (Alopex lagopus): relative frequency and absolute duration of the different stages
Int J Androl, 13 (4), 315-26
PubMed 2387650

Andresen P, Meijer G, Schlüter H, Voges H, Koch A, Hentschel W, Oppermann W, Rothe E (1990)
Fluorescence imaging inside an internal combustion engine using tunable excimer lasers
Appl Opt, 29 (16), 2392-404
DOI 10.1364/AO.29.002392, PubMed 20563180

Clausen OP, Potten CS (1990)
Heterogeneity of keratinocytes in the epidermal basal cell layer
J Cutan Pathol, 17 (3), 129-43
DOI 10.1111/j.1600-0560.1990.tb00072.x, PubMed 2197302

Kirkhus B, Clausen OP (1990)
Cell kinetics in mouse epidermis studied by bivariate DNA/bromodeoxyuridine and DNA/keratin flow cytometry
Cytometry, 11 (2), 253-60
DOI 10.1002/cyto.990110206, PubMed 1690627

Purvis K, Rui H, Schølberg A, Hesla S, Clausen OP (1990)
Application of flow cytometry to studies on the human acrosome
J Androl, 11 (4), 361-6
PubMed 2211342

Røkke O, Due J, Rosenlund AF, Saebøe-Larsen J, Størmer J, Eide TJ (1990)
[Breast tumor--a diagnostic challenge]
Tidsskr Nor Laegeforen, 110 (7), 819-22
PubMed 2321204

Spydevold O, Sørensen H, Clausen OP, Gautvik KM (1990)
Dexamethasone inhibition of rat hepatoma cell growth and cell cycle traverse is reversed by insulin
Biochim Biophys Acta, 1052 (1), 221-8
DOI 10.1016/0167-4889(90)90080-w, PubMed 2182131

Aarnaes E, Kirkhus B, Clausen OP (1990)
Mathematical model analysis of mouse epidermal cell kinetics measured by bivariate DNA/anti-bromodeoxyuridine flow cytometry and continuous [3H]-thymidine labelling
Cell Tissue Kinet, 23 (5), 409-24
DOI 10.1111/j.1365-2184.1990.tb01134.x, PubMed 2245440

Publications 1989

Andresen PA, Gedde-Dahl T, Bergan A, Berstad T, Sellgren AC (1989)
[A Norwegian polyposis family. From catastrophe to prevention]
Tidsskr Nor Laegeforen, 109 (7-8), 832-5
PubMed 2539657

Eide TJ (1989)
[Aspiration cytology of the breast]
Tidsskr Nor Laegeforen, 109 (23), 2282, 2308
PubMed 2772892

Hall KS, Lien B, Paulsen JE, Clausen OP, Bergan A, Rugstad HE (1989)
Effect of preoperative 4'-epidoxorubicin (epi-adriamycin) treatment on the regeneration and function of the liver in partially hepatectomized rats
Eur Surg Res, 21 (3-4), 196-204
DOI 10.1159/000129024, PubMed 2806348

Johansen TE, Clausen OP, Nesland JM (1989)
The effect of non-union of testis and epididymis and of cryptorchidism on the development of epididymis and ductus deferens in the rat
Andrologia, 21 (5), 441-8
PubMed 2573293

Johnansen TE, Haug E, Clausen OP (1989)
Endocrine effects of early non-union of testis and epididymis and of cryptorchidism in the rat
Andrologia, 21 (3), 256-64
PubMed 2570538

MO ES, THRONDSEN T, ANDRESEN P, BACKSTROM SA, FORSBERG A, HAUG S, TORUDBAKKEN B (1989)
A DYNAMIC DETERMINISTIC MODEL OF HYDROCARBON GENERATION IN THE MIDGARD FIELD DRAINAGE AREA OFFSHORE MID-NORWAY
Geol. Rundsch., 78 (1), 305-317

Nordstrand K, Eide TJ, Almdahl SM, Røkke O, Giercksky E (1989)
Organ changes in pigs after longterm parenteral nutrition
Clin Nutr, 8 (1), 29-33
DOI 10.1016/0261-5614(89)90022-8, PubMed 16837263

Oldereid NB, Rui H, Clausen OP, Purvis K (1989)
Cigarette smoking and human sperm quality assessed by laser-Doppler spectroscopy and DNA flow cytometry
J Reprod Fertil, 86 (2), 731-6
PubMed 2760898

Vatn MH, Hoff G, Clausen OP, Foerster A (1989)
Enzyme patterns and flow cytometric DNA measurements in colorectal hyperplastic polyps and tubular adenomas less than five millimeters
Scand J Gastroenterol, 24 (9), 1031-8
DOI 10.3109/00365528909089252, PubMed 2595264

Publications 1988

Andresen P, Bath A, Gröger W, Lülf HW, Meijer G, Meulen JJ (1988)
Laser-induced fluorescence with tunable excimer lasers as a possible method for instantaneous temperature field measurements at high pressures: checks with an atmospheric flame
Appl Opt, 27 (2), 365-78
DOI 10.1364/AO.27.000365, PubMed 20523601

Andresen PA, Kaasen I, Styrvold OB, Boulnois G, Strøm AR (1988)
Molecular cloning, physical mapping and expression of the bet genes governing the osmoregulatory choline-glycine betaine pathway of Escherichia coli
J Gen Microbiol, 134 (6), 1737-46
DOI 10.1099/00221287-134-6-1737, PubMed 3065456

Budde F, Hamza AV, Ferm PM, Ertl G, Weide D, Andresen P, Freund H (1988)
Photodesorption of NO from Ni(100)-O
Phys Rev Lett, 60 (15), 1518-1521
DOI 10.1103/PhysRevLett.60.1518, PubMed 10038061

Clausen OP, Bolstad KG, Mjelva E (1988)
In vivo growth kinetics of P388 and L1210 leukemias
Virchows Arch B Cell Pathol Incl Mol Pathol, 54 (5), 278-83
PubMed 2895540

Clausen OP, Kirkhus B, Elgjo KM, Yuspa SH, Kilkenny AE, Hennings H (1988)
Selective detachment of a tetraploid subline of primary keratinocytes after treatment with the tumor promoter 12-0-tetradecanoylphorbol-13-acetate
APMIS Suppl, 2, 100-10
PubMed 2460111

Clausen OP, Schjølberg AR (1988)
Turnover and maturation kinetics in regenerating mouse epidermis
APMIS Suppl, 2, 111-9
PubMed 3179031

Engh V, Eide TJ, Verhage C (1988)
[Aspiration cytology of the breast. Evaluation of 15-years case material]
Tidsskr Nor Laegeforen, 108 (23), 1765-7
PubMed 3420580

Erichsen A, Clausen OP, Torjesen P, Dahl E, Wetteland P, Hansson V (1988)
A transplantable rat Leydig cell tumour. 6. Effect of castration and hypophysectomy on tumour growth, morphology and plasma levels of pituitary hormones and testosterone
Acta Endocrinol (Copenh), 119 (2), 291-300
DOI 10.1530/acta.0.1190291, PubMed 3140553

Giwercman A, Clausen OP, Skakkebaek NE (1988)
Carcinoma in situ of the testis: aneuploid cells in semen
Br Med J (Clin Res Ed), 296 (6639), 1762-4
DOI 10.1136/bmj.296.6639.1762, PubMed 3136829

Johansen TE, Clausen OP, Nesland JM (1988)
A comparative study of the effects of non-union of testis and epididymis and cryptorchidism on testicular development and spermatogenesis in the rat
Andrologia, 20 (3), 189-201
PubMed 2902815

Kirkhus B, Clausen OP, Fjordvang H, Helander K, Iversen OH, Reitan JB, Vaage S (1988)
Characterization of bladder tumours by multiparameter flow cytometry with special reference to grade II tumours
APMIS, 96 (9), 783-92
DOI 10.1111/j.1699-0463.1988.tb00945.x, PubMed 3166807

Nordstrand K, Eide TJ, Sørlie DG (1988)
Late occlusion of expanded Teflon femoropopliteal graft due to calcification and fracture of implant. Case report
Acta Chir Scand, 154 (7-8), 473-4
PubMed 3188796

Thorud E, Clausen OP, Aarnaes E (1988)
Turnover and maturation kinetics in the hairless mouse epidermis. Continuous [3H]TdR labelling and mathematical model analyses
Cell Tissue Kinet, 21 (4), 301-14
DOI 10.1111/j.1365-2184.1988.tb00788.x, PubMed 3233646

Publications 1987

Almdahl SM, Moestue E, Eide TJ (1987)
[Meckel's diverticulum]
Tidsskr Nor Laegeforen, 107 (32), 2853-4
PubMed 3501176

Clausen OP (1987)
DNA synthesis rate and unlabeled cells with S-phase DNA content in P388 leukemic cells in vivo studied by flow cytometry and cell sorting
Cytometry, 8 (6), 612-7
DOI 10.1002/cyto.990080613, PubMed 3428043

Eide TJ (1987)
Cancer of the uterine cervix in Norway by histologic type, 1970-84
J Natl Cancer Inst, 79 (2), 199-205
PubMed 3474452

Eide TJ, Engh V, Hansen L (1987)
[Cervical neoplasms. A study of conditions influencing the occurrence of false negative tests]
Tidsskr Nor Laegeforen, 107 (14), 1204-6, 1211
PubMed 3603478

Eide TJ, Engh V, Stalsberg H (1987)
[Cervical cancer. Reduced occurrence and mortality in Tromsö and Finnmark 1973-1984]
Tidsskr Nor Laegeforen, 107 (14), 1199-203
PubMed 3603477

Eide TJ, Nielsen K, Solberg S (1987)
Dysplasia in colorectal adenomas related to the presence of O-acylated sialic mucin and to morphometric measurements
Acta Pathol Microbiol Immunol Scand A, 95 (6), 365-9
PubMed 3687439

Eide TJ, Tretli S, Langmark F (1987)
[The diagnostic basis for cancer registration in Norway]
Tidsskr Nor Laegeforen, 107 (32), 2865-8
PubMed 3424326

Kirkhus B, Clausen OP (1987)
Persisting long-term effects of a single carcinogenic dose of methylnitrosourea on epidermal growth in mice
Carcinogenesis, 8 (2), 271-4
DOI 10.1093/carcin/8.2.271, PubMed 3802411

Nordstrand K, Eide TJ, Giercksky KE (1987)
Parenteral nutrition via the portal vein in rats
Acta Chir Scand, 153 (2), 93-8
PubMed 3113144

Nordstrand K, Melhus O, Eide TJ, Larsen T, Giercksky KE (1987)
Intraabdominal granuloma reaction in rats after introduction of maize-starch powder
Acta Pathol Microbiol Immunol Scand A, 95 (2), 93-8
PubMed 3551497

Nordstrand K, Melhus O, Eide TJ, Myhr K, Melbye K, Reikerås O, Sørlie D, Giercksky KE (1987)
Mortality in rats on long-term parenteral nutrition
Eur Surg Res, 19 (1), 40-52
DOI 10.1159/000128679, PubMed 3098569

Okstad S, Mair IW, Sundsfjord JA, Eide TJ, Nordrum I (1987)
[Ectopic thyroid tissue in the head and neck]
Tidsskr Nor Laegeforen, 107 (3), 249-50
PubMed 3824313

Smith AJ, Mondain-Monval M, Andersen Berg K, Gordeladze JO, Clausen OP, Simon P, Scholler R (1987)
Sexual development in the immature male blue fox (Alopex lagopus), investigated by testicular histology, DNA flow cytometry and measurement of plasma FSH, LH, testosterone and soluble testicular Mn2+-dependent adenylate cyclase activity
J Reprod Fertil, 81 (2), 505-15
PubMed 3123658

Smith AJ, Mondain-Monval M, Andersen Berg K, Simon P, Forsberg M, Clausen OP, Hansen T, Møller OM, Scholler R (1987)
Effects of melatonin implantation on spermatogenesis, the moulting cycle and plasma concentrations of melatonin, LH, prolactin and testosterone in the male blue fox (Alopex lagopus)
J Reprod Fertil, 79 (2), 379-90
PubMed 3572874

Smith AJ, Mondain-Monval M, Simon P, Andersen Berg K, Clausen OP, Hofmo PO, Scholler R (1987)
Preliminary studies of the effects of bromocriptine on testicular regression and the spring moult in a seasonal breeder, the male blue fox (Alopex lagopus)
J Reprod Fertil, 81 (2), 517-24
PubMed 3430468

Publications 1986

Buchmann MS, Clausen OP (1986)
Effects of cholestanol feeding and cholestyramine treatment on the tissue sterols in the rabbit
Lipids, 21 (12), 738-43
DOI 10.1007/BF02535404, PubMed 3821387

Clausen OP, Kirkhus B, Schjølberg AR (1986)
Cell cycle progression kinetics of regenerating mouse epidermal cells: an in vivo study combining DNA flow cytometry, cell sorting, and [3H]dThd autoradiography
J Invest Dermatol, 86 (4), 402-5
DOI 10.1111/1523-1747.ep12285672, PubMed 3745959

Clausen OP, Kirkhus B, Thorud E, Schjølberg A, Moen E, Cromarty A (1986)
Evidence of mouse epidermal subpopulations with different cell cycle times
J Invest Dermatol, 86 (3), 266-70
DOI 10.1111/1523-1747.ep12285397, PubMed 3745951

Eide TJ (1986)
A morphometrical analysis of dysplasia in small adenomas of the large intestine
Virchows Arch A Pathol Anat Histopathol, 410 (2), 119-24
PubMed 3099454

Eide TJ (1986)
Risk of colorectal cancer in adenoma-bearing individuals within a defined population
Int J Cancer, 38 (2), 173-6
DOI 10.1002/ijc.2910380205, PubMed 3733258

Eide TJ (1986)
Prevalence and morphological features of adenomas of the large intestine in individuals with and without colorectal carcinoma
Histopathology, 10 (2), 111-8
DOI 10.1111/j.1365-2559.1986.tb02467.x, PubMed 3957251

Eide TJ (1986)
The age-, sex-, and site-specific occurrence of adenomas and carcinomas of the large intestine within a defined population
Scand J Gastroenterol, 21 (9), 1083-8
PubMed 3810008

Elgjo K, Hennings H, Clausen OP (1986)
Altered growth kinetics precede calcium-induced differentiation in mouse epidermal cells
In Vitro Cell Dev Biol, 22 (6), 332-6
DOI 10.1007/BF02623407, PubMed 3759789

Magnus O, Purvis K, Rui H, Clausen OP, Abyholm T, Gordeladze JO (1986)
Biochemical correlates of asthenozoospermia: a lesion at the level of the sperm adenylyl cyclase
Arch Androl, 17 (3), 165-72
DOI 10.3109/01485018608990192, PubMed 3606270

NEUMANN ER, PALLESEN S, ANDRESEN P (1986)
MASS ESTIMATES OF CUMULATES AND RESIDUES AFTER ANATEXIS IN THE OSLO GRABEN
J GEOPHYS RES-SOLID, 91 (B11), 1629-1640

Nordstrand K, Giercksky KE, Melhus O, Eide TJ, Flaegstad T (1986)
[Corn starch glove powder. A life-threatening peritoneal reaction]
Tidsskr Nor Laegeforen, 106 (6), 494-5
PubMed 3961773

Norstrand K, Eide TJ, Giercksky KE (1986)
Long-term continuous intralipid infusion in the thoracic duct in rats
Acta Chir Scand, 152, 727-32
PubMed 3591201

Okstad S, Mair IW, Sundsfjord JA, Eide TJ, Nordrum I (1986)
Ectopic thyroid tissue in the head and neck
J Otolaryngol, 15 (1), 52-5
PubMed 3959180

SKULLERUD HR, EIDE T, STEFANSSON T (1986)
TRANSVERSE DIFFUSION OF LITHIUM IONS IN HELIUM
J. Phys. D-Appl. Phys., 19 (2), 197-208

Viste A, Bjørnestad E, Opheim P, Skarstein A, Thunold J, Hartveit F, Eide GE, Eide TJ, Søreide O (1986)
Risk of carcinoma following gastric operations for benign disease. A historical cohort study of 3470 patients
Lancet, 2 (8505), 502-5
DOI 10.1016/s0140-6736(86)90368-5, PubMed 2875248

Publications 1985

Andresen PA (1985)
The prevention and treatment of spouse abuse: a community health perspective
J Community Health Nurs, 2 (4), 181-90
DOI 10.1207/s15327655jchn0204_2, PubMed 3852857

Clark JC, Collan Y, Eide TJ, Estève J, Ewen S, Gibbs NM, Jensen OM, Koskela E, MacLennan R, Simpson JG (1985)
Prevalence of polyps in an autopsy series from areas with varying incidence of large-bowel cancer
Int J Cancer, 36 (2), 179-86
DOI 10.1002/ijc.2910360209, PubMed 4018911

Clausen OP, Kirkhus B (1985)
Effects of pulse labelling with tritiated thymidine on the circadian rhythmicity in epidermal cell-cycle distribution in mice
Cell Tissue Kinet, 18 (1), 83-9
DOI 10.1111/j.1365-2184.1985.tb00634.x, PubMed 3971418

Clausen OP, Kirkhus B, Elgjo K, Pedersen S, Bolund L (1985)
DNA synthesis rate changes during the S phase in mouse epidermis
Cell Tissue Kinet, 18 (4), 445-55
DOI 10.1111/j.1365-2184.1985.tb00674.x, PubMed 4005938

Garborg I, Eide TJ (1985)
The probability of overlooking prostatic cancer in transurethrally resected material when different embedding practices are followed
Acta Pathol Microbiol Immunol Scand A, 93 (5), 205-8
PubMed 3901664

Hoff G, Clausen OP, Fjordvang H, Norheim A, Foerster A, Vatn MH (1985)
Epidemiology of polyps in the rectum and sigmoid colon. Size, enzyme levels, DNA distributions, and nuclear diameter in polyps of the large intestine
Scand J Gastroenterol, 20 (8), 983-9
DOI 10.3109/00365528509088859, PubMed 4081637

Huseby NE, Eide TJ (1985)
Variant gamma-glutamyltransferase in colorectal carcinoma and liver metastasis. A case study
Clin Biochem, 18 (4), 217-9
DOI 10.1016/S0009-9120(85)80042-4, PubMed 2864145

Johansen PW, Clausen OP, Haug E, Fossum S, Gautvik KM (1985)
Effects of bromocriptine on cell cycle distribution and cell morphology in cultured rat pituitary adenoma cells
Acta Endocrinol (Copenh), 110 (3), 319-28
DOI 10.1530/acta.0.1100319, PubMed 4072574

Jørgensen L, Nordal EJ, Eide TJ, Svendsen EA, Bostad LH, Engh TV, Blom GP (1985)
The relationship between atherosclerosis of the thoracic aorta and renal scarring in an autopsy material
Acta Pathol Microbiol Immunol Scand A, 93 (5), 251-5
PubMed 4050435

Schinke R, Engel V, Andresen P, Hausler D, Balint-Kurti GG (1985)
Photodissociation of single H2O quantum states in the first absorption band: Complete characterization of OH rotational and Lambda -doublet state distributions
Phys Rev Lett, 55 (11), 1180-1183
DOI 10.1103/PhysRevLett.55.1180, PubMed 10031749

Thorud E, Aarnaes E, Clausen OP, Bjerknes R, Anker P (1985)
Estimation of circadian variations in cell cycle phase durations in murine epidermal basal cells
Cell Tissue Kinet, 18 (3), 279-95
DOI 10.1111/j.1365-2184.1985.tb00658.x, PubMed 3986872

Publications 1984

Almdahl SM, Piene H, Eide TJ (1984)
Platelet trapping and haemodynamics in unilateral and bilateral experimental pulmonary macroembolism
Acta Chir Scand, 150 (5), 361-5
PubMed 6485688

Aspestrand F, Roald Oppedal B, Eide TJ (1984)
Pancreatic cystadenoma. Angiographic and histologic findings illustrated by two cases
Radiologe, 24 (5), 227-9
PubMed 6463235

Braekken SK, Mellgren SI, Eide TJ (1984)
[Muscle biopsies. Examination with computer-assisted morphometry]
Tidsskr Nor Laegeforen, 104 (7), 505-7
PubMed 6374963

Clausen OP, Iversen OH, Thorud E (1984)
Circadian variation in the susceptibility of mouse epidermis to tumour induction by methylnitrosourea
Virchows Arch B Cell Pathol Incl Mol Pathol, 45 (3), 325-9
DOI 10.1007/BF02889874, PubMed 6146223

Clausen OP, Aarnaes E, Kirkhus B, Pedersen S, Thorud E, Bolund L (1984)
Subpopulations of slowly cycling cells in S and G2 phase in mouse epidermis
Cell Tissue Kinet, 17 (4), 351-65
DOI 10.1111/j.1365-2184.1984.tb00595.x, PubMed 6733749

Dodson RA, Polishak BL, Eide TJ, Johnson WE (1984)
Lethal dose studies with calcium chloride, general CNS depressants, A23187 and verapamil
Proc West Pharmacol Soc, 27, 511-4
PubMed 6436827

Eide TJ, Schweder T (1984)
Clustering of adenomas in the large intestine
Gut, 25 (11), 1262-7
DOI 10.1136/gut.25.11.1262, PubMed 6500364

Korsgaard R, Clausen OP, Thorud E (1984)
Establishment of a human meningeal cell line in culture
Anticancer Res, 4 (1-2), 83-9
PubMed 6712180

Lunde P, Sörlie D, Bolz KD, Eide TJ (1984)
Huge arteriovenous malformation in the mediastinum. Clinical presentation and surgical management
Scand J Thorac Cardiovasc Surg, 18 (1), 75-80
DOI 10.3109/14017438409099388, PubMed 6719077

Smith AJ, Clausen OP, Kirkhus B, Jahnsen T, Møller OM, Hansson V (1984)
Seasonal changes in spermatogenesis in the blue fox (Alopex lagopus), quantified by DNA flow cytometry and measurement of soluble Mn2+ -dependent adenylate cyclase activity
J Reprod Fertil, 72 (2), 453-61
PubMed 6512769

Thorud E, Clausen OP, Kauffman SL (1984)
Different epidermal cell kinetic effects of hydroxyurea when injected at two different times of the day
Cell Tissue Kinet, 17 (6), 549-56
DOI 10.1111/j.1365-2184.1984.tb00614.x, PubMed 6488273

Publications 1983

Clausen OP (1983)
Flow cytometry of keratinocytes
J Cutan Pathol, 10 (1), 33-51
DOI 10.1111/j.1600-0560.1983.tb00314.x, PubMed 6188766

Clausen OP, Elgjo K, Kirkhus B, Pedersen S, Bolund L (1983)
DNA synthesis in mouse epidermis: S phase cells that remain unlabeled after pulse labeling with DNA precursors progress slowly through S
J Invest Dermatol, 81 (6), 545-9
DOI 10.1111/1523-1747.ep12523189, PubMed 6644097

Eide TJ (1983)
Remnants of adenomas in colorectal carcinomas
Cancer, 51 (10), 1866-72
DOI 10.1002/1097-0142(19830515)51:10<1866::aid-cncr2820511019>3.0.co;2-x, PubMed 6831352

Elgjo K, Clausen OP (1983)
Proliferation-dependent effect of skin extracts (chalone) on mouse epidermal cell flux at the G1-S, S-G2 and G2-M transitions
Virchows Arch B Cell Pathol Incl Mol Pathol, 42 (2), 143-51
DOI 10.1007/BF02890377, PubMed 6133388

Elgjo K, Clausen OP (1983)
Mouse epidermal cell proliferation after a single application of dimethyl sulphoxide (DMSO)
Cell Tissue Kinet, 16 (4), 343-9
PubMed 6861193

Huseby NE, Eide TJ (1983)
Variant gamma-glutamyltransferases in colorectal carcinomas
Clin Chim Acta, 135 (3), 301-7
DOI 10.1016/0009-8981(83)90289-9, PubMed 6198111

Publications 1982

Andresen P (1982)
[Rare formation of a neoplasm on the mammae of a cow]
Dtsch Tierarztl Wochenschr, 89 (6), 252-3
PubMed 6751767

Andresen P, Schulte B, Grunert E, Andresen U (1982)
[Experiences with Abbovestrol used for cyclus synchronisation in heifers]
Dtsch Tierarztl Wochenschr, 89 (6), 241-4
PubMed 6751763

Bruhn J, Andresen P, Görding G (1982)
[Polyvidon-iodine mucous membrane disinfectant - alternative to antibiotic preparations for the care of abdominal cavities in cattle (short communication)]
Dtsch Tierarztl Wochenschr, 89 (6), 250-2
PubMed 6751766

Clausen OP, Parvinen M, Kirkhus B (1982)
Stage-related variations in DNA fluorescence distribution during rat spermatogenic cycle measured by flow cytometry
Cytometry, 2 (6), 421-5
DOI 10.1002/cyto.990020611, PubMed 7075402

Clausen OP, Thorud E, Elgjo K (1982)
Epidermal proliferation characteristics are similar in the pilary canal of mouse hair follicles and in interfollicular epidermis
Virchows Arch B Cell Pathol Incl Mol Pathol, 39 (3), 259-66
DOI 10.1007/BF02892852, PubMed 6126031

Clausen OP, Thorud E, Iversen OH (1982)
Adrenalin has differential effects on epidermal cell cycle progression in mice
J Invest Dermatol, 78 (6), 472-6
PubMed 7086167

Clausen OP, Thorud E, Kauffman SL (1982)
Circadian rhythms in mouse epidermis: variation in the numbers of basal and differentiating cells, cell density, and cell loss
Int J Chronobiol, 8 (2), 83-93
PubMed 7141750

Gordeladze JO, Abyholm T, Cusan L, Clausen OP, Hansson V (1982)
Cellular localization of the Mn2+-dependent adenylyl cyclase in the human testis
Arch Androl, 8 (3), 199-204
DOI 10.3109/01485018208987040, PubMed 6808940

Gordeladze JO, Parvinen M, Clausen OP, Hansson V (1982)
Stage dependent variation in Mn2+-sensitive adenylyl cyclase (AC) activity in spermatids and FSH-sensitive AC in sertoli cells
Arch Androl, 8 (1), 43-51
DOI 10.3109/01485018208987017, PubMed 6802089

Jutte NH, Jansen R, Grootegoed JA, Rommerts FF, Clausen OP, van der Molen HJ (1982)
Regulation of survival of rat pachytene spermatocytes by lactate supply from Sertoli cells
J Reprod Fertil, 65 (2), 431-8
PubMed 6808129

Publications 1981

Abyholm T, Clausen OP (1981)
Clinical evaluation of DNA flow cytometry of fine needle aspirates from testes of infertile men
Int J Androl, 4 (5), 505-14
DOI 10.1111/j.1365-2605.1981.tb00734.x, PubMed 6797952

Andresen P, Petrarca S (1981)
Districting: an alternative community health experience
Nurs Outlook, 29 (9), 528-30
PubMed 6912448

Clausen OP, Purvis K, Hansson V (1981)
Age-related changes in [125I]hLH specific binding to rat interstitial cells
Acta Endocrinol (Copenh), 96 (4), 569-76
DOI 10.1530/acta.0.0960569, PubMed 6259866

Clausen OP, Thorud E, Aarnaes E (1981)
Evidence of rapid and slow progression of cells through G2 phase in mouse epidermis: a comparison between phase durations measured by different methods
Cell Tissue Kinet, 14 (3), 227-40
DOI 10.1111/j.1365-2184.1981.tb00528.x, PubMed 7237512

Cusan L, Gordeladze JO, Parvinen M, Clausen OP, Hansson V (1981)
Protein carboxylmethylase and germ cell adenylyl cyclase at specific stages of the spermatogenic cycle of the rat
Biol Reprod, 25 (5), 915-9
DOI 10.1095/biolreprod25.5.915, PubMed 7326306

Elgjo K, Clausen OP, Thorud E (1981)
Epidermis extracts (chalone) inhibit cell flux at the the G1-S, S-G2 and G2-M transitions in mouse epidermis
Cell Tissue Kinet, 14 (1), 21-9
DOI 10.1111/j.1365-2184.1981.tb00507.x, PubMed 6451294

Falk ES, Eide TJ (1981)
Histologic and clinical findings in human scabies
Int J Dermatol, 20 (9), 600-5
DOI 10.1111/j.1365-4362.1981.tb00844.x, PubMed 7309317

Gordeladze JO, Purvis K, Clausen OP, Rommerts FF, Hansson V (1981)
Cellular localization of the Mn2+-dependent adenylyl cyclase (AC) in rat testis
Int J Androl, 4 (2), 172-82
DOI 10.1111/j.1365-2605.1981.tb00701.x, PubMed 7251202

Skaane P, Eide TJ, Westgaard T, Gauperaa T (1981)
Lipomatosis and true lipomas of the ileocecal valve
Rofo, 135 (6), 663-8
DOI 10.1055/s-2008-1056492, PubMed 6212382

Solem BS, Eide TJ, Elverland HH, Mair IW (1981)
Benign lipoblastomatosis: a cervical tumor of children
Int J Pediatr Otorhinolaryngol, 3 (2), 163-9
DOI 10.1016/0165-5876(81)90033-1, PubMed 7287320

Aarnaes E, Thorud E, Clausen OP (1981)
Model analysis of circadian rhythms in mouse epidermal basal cell proliferation
J Theor Biol, 88 (2), 355-70
DOI 10.1016/0022-5193(81)90081-3, PubMed 7266008

Publications 1980

Aspestrand F, Eide TJ (1980)
Angiographic demonstration of simultaneous appearance of cystadenoma and non-functioning insuloma of the pancreas
Rofo, 132 (5), 587-8
DOI 10.1055/s-2008-1056626, PubMed 6259034

Clausen OP, Abyholm T (1980)
Deoxyribonucleic acid flow cytometry of germ cells in the investigatin of male infertility
Fertil Steril, 34 (4), 369-74
PubMed 7418890

Clausen OP, Thorud E (1980)
Perturbation of cell cycle progression in mouse epidermis prior to the regenerative response
J Invest Dermatol, 75 (2), 129-32
DOI 10.1111/1523-1747.ep12521629, PubMed 7410881

Clausen OP, Thorud E (1980)
Perturbation of cell cycle progression in mouse epidermis prior to the regenerative response
J Invest Dermatol, 74 (6), 433-6
PubMed 7381234

Clausen OP, Thorud E, Bolund L (1980)
DNA synthesis in mouse epidermis. Labelled and unlabelled basal cells in S phase after administration of tritiated thymidine
Virchows Arch B Cell Pathol Incl Mol Pathol, 34 (1), 1-11
DOI 10.1007/BF02892402, PubMed 6108002

Purvis K, Clausen OP, Hansson V (1980)
Effects of age and hypophysectomy on responsiveness of rat Leydig cells to hCG
J Reprod Fertil, 60 (1), 77-86
PubMed 7431331

Rismyhr B, Eide TJ, Stalsberg H (1980)
The diagnosis of carcinoma in transurethral resectates of of the prostate. A study of the probability of overlooking malignant tissue when only part of the material is embedded for histological examination
Acta Pathol Microbiol Scand A, 88 (4), 211-5
PubMed 7004074

Svendsen E, Eide TJ (1980)
Distribution of atherosclerosis in human descending thoracic aorta. A morphometric study
Acta Pathol Microbiol Scand A, 88 (2), 97-101
PubMed 7368939

Thorud E, Clausen OP (1980)
Epidermal cell kinetics in hairless mice after bleomycin. II. Perturbations after multiple doses
Cancer Treat Rep, 64 (10-11), 1039-45
PubMed 6161698

Thorud E, Clausen OP, Bjerknes R, Aarnaes E (1980)
The stathmokinetic method in vivo. Time-response with special reference to circadian variations in epidermal cell proliferation in the hairless mouse
Cell Tissue Kinet, 13 (6), 625-34
DOI 10.1111/j.1365-2184.1980.tb00501.x, PubMed 7417979

Publications 1979

Andresen P (1979)
[Kinking and torsion of the umbilical cord as a cause for the incipient mummification of a bovine fetus (brief clinical report)]
Dtsch Tierarztl Wochenschr, 86 (6), 231
PubMed 378638

Andresen P, Surborg H (1979)
[Subfascial cyst formation at the udder of a pregnant cow. (Clinical brief communication)]
Dtsch Tierarztl Wochenschr, 86 (7), 270-1
PubMed 383450

Clausen OP (1979)
Regenerative proliferation of mouse epidermal cells following application of a skin irritant (cantharidin). Flow microfluorometric DNA measurements and [3H]TdR incorporation studies of isolated basal cells
Cell Tissue Kinet, 12 (2), 135-44
DOI 10.1111/j.1365-2184.1979.tb00120.x, PubMed 427873

Clausen OP, Purvis K, Hansson V (1979)
Endocrine correlates of meiosis in the male rat
Arch Androl, 2 (1), 59-66
DOI 10.3109/01485017908987293, PubMed 443922

Clausen OP, Thorud E, Bjerknes R, Elgjo K (1979)
Circadian rhythms in mouse epidermal basal cell proliferation. Variations in compartment size, flux and phase duration
Cell Tissue Kinet, 12 (3), 319-37
DOI 10.1111/j.1365-2184.1979.tb00154.x, PubMed 476779

Eide TJ, Stalsberg H (1979)
Diverticular disease of the large intestine in Northern Norway
Gut, 20 (7), 609-15
DOI 10.1136/gut.20.7.609, PubMed 114456

Purvis K, Clausen OP, Hansson V (1979)
LH contamination may explain FSH effects on rat Leydig cells
J Reprod Fertil, 56 (2), 657-65
PubMed 573330

Purvis K, Clausen OP, Hansson V (1979)
Androgen effects on rat Leydig cells
Biol Reprod, 20 (2), 304-9
DOI 10.1095/biolreprod20.2.304, PubMed 222365

Purvis K, Clausen OP, Olsen A, Haug E, Hansson V (1979)
Prolactin and Leydig cell responsiveness to LH/hCG in the rat
Arch Androl, 3 (3), 219-30
DOI 10.3109/01485017908988408, PubMed 229781

Publications 1978

Clausen OP (1978)
Regenerative proliferation of mouse epidermal cells following application of a carcinogenic skin irritant (MCA). Micro-flow fluorometric DNA measurements and 3H-TdR incorporation studies of isolated basal cells
Virchows Arch B Cell Pathol, 27 (3), 205-15
PubMed 96581

Clausen OP, Gautvik KM, Haug E (1978)
Effects of cortisol, 17beta-estradiol and thyroliberin on prolactin and growth hormone production, cell growth and cell cycle distribution in cultured rat pituitary tumour cells
J Cell Physiol, 94 (2), 205-14
DOI 10.1002/jcp.1040940210, PubMed 413837

Clausen OP, Purvis K, Hansson V (1978)
Assessment by microflow fluorometry of the purity of interstitial cell suspensions from the rat testis
J Reprod Fertil, 52 (2), 387-90
PubMed 633223

Eide TJ, Stalsberg H (1978)
Polyps of the large intestine in Northern Norway
Cancer, 42 (6), 2839-48
DOI 10.1002/1097-0142(197812)42:6<2839::aid-cncr2820420645>3.0.co;2-y, PubMed 728878

Purvis K, Clausen OP, Brandtzaeg P, Hansson V (1978)
LH receptors and Leydig cell responsiveness to hCG in vitro
Arch Androl, 1 (4), 299-310
DOI 10.3109/01485017808988350, PubMed 216326

Purvis K, Clausen OP, Hansson V (1978)
Decreased Leydig cell responsiveness in the testicular feminized male rat
Endocrinology, 102 (4), 1053-60
DOI 10.1210/endo-102-4-1053, PubMed 217612

Purvis K, Clausen OP, Hansson V (1978)
Age-related changes in responsiveness of rat Leydig cells to hCG
J Reprod Fertil, 52 (2), 379-86
PubMed 633222

Thorud E, Clausen OP (1978)
Epidermla cell kinetics in hairless mice after bleomycin. I. Perturbations after different single doses
Cancer Treat Rep, 62 (3), 351-61
PubMed 77187

Publications 1977

Andresen P, Schulte B, Diez G, Hirche J (1977)
[Experiences in the cycle synchronization of heifers using the prostaglandin analog Estrumate]
Dtsch Tierarztl Wochenschr, 84 (6), 226-9
PubMed 326522

Clausen OP, Gautvik KM, Lindmo T (1977)
Cell cycle distributions, growth characteristics, and variation in prolactin and growth hormone production in cultured rat pituitary cells
Virchows Arch B Cell Pathol, 23 (3), 195-207
PubMed 403669

Clausen OP, Purvis K, Hansson V (1977)
Application of micro-flow fluorometry to studies of meiosis in the male rat
Biol Reprod, 17 (4), 555-60
DOI 10.1095/biolreprod17.4.555, PubMed 922090

Iversen OH, Clausen OP, Elgjo K, Iversen UM, Rohrbach R (1977)
Effects of bleomycin on the epidermal content of growth-regulatory substances (chalones)
Cell Tissue Kinet, 10 (1), 71-9
DOI 10.1111/j.1365-2184.1977.tb00284.x, PubMed 66992

Purvis K, Haug E, Clausen OP, Naess O, Hansson V (1977)
Endocrine status of the testicular feminized male (TFM) rat
Mol Cell Endocrinol, 8 (4), 317-34
DOI 10.1016/0303-7207(77)90006-5, PubMed 924015

Skaane P, Eide TJ (1977)
[Asymptomatic primary appendiceal carcinoma with lymph node metastases]
Zentralbl Chir, 102 (9), 564-8
PubMed 883444

Skaane P, Eide TJ (1977)
Malignant appendiceal carcinoid with intussusception of the base manifesting as a cecal tumor: report of a case
Dis Colon Rectum, 20 (6), 511-4
DOI 10.1007/BF02586591, PubMed 902547

Publications 1976

Clausen OP, Lindmo T (1976)
Regenerative proliferation of mouse epidermal cells following adhesive tape stripping. Micro-flow fluorometry of isolated epidermal basal cells combined with 3H-TdR incorporation and a stathmokinetic method (colcemid)
Cell Tissue Kinet, 9 (6), 573-87
DOI 10.1111/j.1365-2184.1976.tb01307.x, PubMed 1000570

Clausen OP, Lindmo T, Sandnes K, Thorud E (1976)
Separation of mouse epidermal basal and differentiating cells for microflow fluorometric measurements: a methodologic study
Virchows Arch B Cell Pathol, 20 (4), 261-75
PubMed 820057

Grunert E, Schulte B, Andresen P (1976)
[Estrus and conception in cattle following cycle synchronization using Estrumate (ICI 80996)]
Tierarztl Umsch, 31 (4), 159-64
PubMed 1036169

Iversen OH, Clausen OP, Elgjo K, Iversen UM, Rohrbach R (1976)
Growth parameters of the hairless mouse epidermis after bleomycin treatment: possible interaction with epidermal chalones
Prog Biochem Pharmacol, 11, 110-8
PubMed 63957

Iversen PH, Clausen OP, Iversen UM, Rohrbach R (1976)
Some effects of bleomycin on the proliferation, maturation time and protein synthesis of hairless mouse epidermis
Cell Tissue Kinet, 9 (1), 77-97
DOI 10.1111/j.1365-2184.1976.tb01255.x, PubMed 57003

Publications 1975

Clausen OP (1975)
The effect of bleomycin on rapidly proliferating epidermis. A comparative investigation using micro-flow fluorometry, H3Tdr incorporation and a stathmokinetic method (colcemid)
Virchows Arch B Cell Pathol, 19 (4), 337-48
PubMed 54977

Iversen OH, Clausen OP, Iversen UM, Rohrbach R (1975)
[Effect of bleomycin on the proliferation and maturity of epidermal cells in nude mice]
Verh Dtsch Ges Pathol, 59, 562
PubMed 56102

Publications 1974

Andresen P (1974)
[Illustrated report no. 18. Ovarian granulosa cell tumor in a 2-year-old cow]
Dtsch Tierarztl Wochenschr, 81 (18), 437
PubMed 4605714

Grunert E, Andresen P, Ahlers D (1974)
[Possibilities of contraception, artificial abortion and premature labor in cattle]
Dtsch Tierarztl Wochenschr, 81 (23), 588-91
PubMed 4611733

Publications 1973

Grunert E, Andresen P (1973)
[Estrus and conception in cattle following cycle synchronization and HCG-administration]
Dtsch Tierarztl Wochenschr, 80 (7), 152-4
PubMed 4574076

Publications 1972

Andresen P (1972)
[Vaginal neoplasm in a heifer eight days following labor]
Dtsch Tierarztl Wochenschr, 79 (11), 267
PubMed 4558518

Andresen P, Schmidt HC (1972)
[Treatment of genital catarrhs in cattle using the acid derivative Lotagen in 4 per cent and 8 per cent solutions]
Dtsch Tierarztl Wochenschr, 79 (18), 441-4
PubMed 4563949

Publications 1971

Aehnelt E, Grunert E, Andresen P (1971)
[Development of extraction, embryotomy and caesarean section in bovine obstetrics during the 19th and 20th century]
Dtsch Tierarztl Wochenschr, 78 (21), 557-61
PubMed 4941094

Ahlers D, Andresen P (1971)
[Therapeutic trials with Trimethoprin-S in febrile mastitis, puerperal disorders and suckling diseases in cattle. (Preliminary report)]
Dtsch Tierarztl Wochenschr, 78 (7), 213-4 passim
PubMed 4929169

Stokke DB, Andresen P (1971)
[Klinefelter's syndrome. A survey on the most commonly associated diseases eluciated by the findings in a pair of monozygotic twins]
Nord Med, 86 (46), 1333-8
PubMed 5134416

Publications 1970

Andresen P, Luhmann F, Pohlenz J (1970)
[Calcinosis in an eight-year-old cow in Northern Germany]
Dtsch Tierarztl Wochenschr, 77 (19), 492-5
PubMed 5528521

Grunert E, Andresen P (1970)
[Fetal central nervous system disorders in a suckling calf injected with Trypanosoma theileri. (Short communication)]
Dtsch Tierarztl Wochenschr, 77 (13), 304-6
PubMed 5463769

Luhmann F, Andresen P (1970)
[Hernia abdominalis utero gravido in a 8-year-old cow (short clinical report)]
Dtsch Tierarztl Wochenschr, 77 (2), 31-3
PubMed 5529177

Stokke DB, Andresen P (1970)
[Myocardial infarct during induced hypertension with mineral corticoids]
Ugeskr Laeger, 132 (20), 940
PubMed 5448716

Stokke DB, Andresen P (1970)
Familial occurrence of "cryptothyroidism" with functioning ectopic thyroid tissue in solitary subhyoid localization
Dan Med Bull, 17 (6), 189-92
PubMed 5454402

Publications 1967

Draeger J, Andresen P, Tamm J (1967)
[Intravenous corticosteroid therapy in optical nerve neuritis and uveitis]
Ophthalmologica, 153 (1), 15-28
DOI 10.1159/000305033, PubMed 6049141

Frerking H, Andresen P, Geyer K (1967)
[Cesarean section in cows with suture and clamping of the skin wound]
Dtsch Tierarztl Wochenschr, 74 (24), 636-8
PubMed 5629010

Publications 1966

Andresen P, Clausen J (1966)
Stress ulcers complicating myocardial infarction
Geriatrics, 21 (10), 166-73
PubMed 4288460

Iversen M, Englund F, Wollesen F, Hansen E, Andresen P (1966)
[Treatment of obese diabetics with phenformin HCl (Dibein)]
Ugeskr Laeger, 128 (5), 139-42
PubMed 5914464

Publications 1964

ANDRESEN P, CLAUSEN J (1964)
GASTRIC "STRESS" ULCERATION IN MYOCARDIAL INFARCTION
Acta Med Scand, 176, 467-72
PubMed 14221656

Publications 1963

FROLAND A, JOHNSON SG, ANDRESEN P, DIEN E, SANGER R, RACE RR (1963)
NON-DISJUNCTION AND XXY MEN
Lancet, 2 (7317), 1121-2
DOI 10.1016/s0140-6736(63)92897-6, PubMed 14063437

Publications 1961

CLAUSEN J, ANDERSEN PE, ANDRESEN P, GRUELUND S, HARSLOF E, ANDERSEN UH, JORGENSEN J, MOSE C (1961)
[Long-term anticoagulant treatment after acute coronary occulusion. Material with complete comparison with control material]
Ugeskr Laeger, 123, 987-94
PubMed 13693953

CLAUSEN J, ANDRESEN P, GRUELUND S, HARSLOF E, ANDERSEN UH, JORGENSEN J, MOSE C (1961)
[On the use of Marcumar and Dicumarol in long-term treatment. (Comparative studies)]
Tohoku Igaku Zasshi, 6, 37-44
PubMed 13693954

Publications 1960

ANDRESEN P, BREIDAHL A (1960)
[Calcinosis circumscripta]
Ugeskr Laeger, 122, 719-21
PubMed 13793582

Publications 1957

ANDRESEN P (1957)
[Penicillin concentration in plasma after oral administration of potassium phenoxymethyl penicillin (potassium V penicillin) and other penicillin preparations; comparative study]
Gazz Med Ital, 116 (7), 304-8
PubMed 13462092

ANDRESEN P (1957)
[Eighteen months experience with penicillin V tablets (rocilin)]
Ugeskr Laeger, 119 (4), 97-101
PubMed 13422682

ANDRESEN P (1957)
[Not Available]
Ugeskr Laeger, 119 (4), 101-5
PubMed 13422683

ANDRESEN P, TINDINGE G (1957)
[Agranulocytosis following therapeutic use of chlorpromazine and its derivatives]
Ugeskr Laeger, 119 (13), 390-1; passim
PubMed 13433878

Publications 1956

ANDRESEN P (1956)
[Cortisone treatment of advanced carcinoma of the breast; preliminary report]
Ugeskr Laeger, 118 (1), 9-11
PubMed 13312125

Publications 1955

ANDRESEN P (1955)
[Not Available]
Ugeskr Laeger, 117 (46), 1516-7
PubMed 13299406

ANDRESEN P (1955)
[Penicillin concentration in blood after oral administration of phenoxymethyl penicillin potassium (penicillin potassium V) and other penicillin compounds; comparative studies]
Ugeskr Laeger, 117 (42), 1365-70
PubMed 13281952

ANDRESEN P (1955)
[Studies on Moro reactions in India]
Nord Med, 53 (11), 469-71
PubMed 14370574

Publications 1953

ANDRESEN P (1953)
[Complications following BCG vaccination]
Ugeskr Laeger, 115 (4), 131-2
PubMed 13049690

 
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