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Ole Petter Clausen

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Panagiota Mantaka; Assia Bassarova; Ole Petter F Clausen; Petter Gjersvik; Per Helsing; Jan Delabie
Clinical and histopathological features of folliculotropic mycosis fungoides: a norwegian patient series.
Arne Westgaard; Ewa Pomianowska; Ole Petter F Clausen; Ivar Gladhaug
Intestinal-type and pancreatobiliary-type adenocarcinomas: how does ampullary carcinoma differ from other periampullary malignancies?
Ewa Pomianowska; Arne Westgaard; Oystein Mathisen; Ole Petter F Clausen; Ivar Gladhaug
Prognostic relevance of number and ratio of metastatic lymph nodes in resected pancreatic, ampullary, and distal bile duct carcinomas.

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2013: Panagiota Mantaka; Assia Bassarova; Ole Petter F Clausen; Petter Gjersvik; Per Helsing; Jan Delabie
Clinical and histopathological features of folliculotropic mycosis fungoides: a norwegian patient series.
Acta dermato-venereologica 2013;93(3):325-9.
2013: Arne Westgaard; Ewa Pomianowska; Ole Petter F Clausen; Ivar Gladhaug
Intestinal-type and pancreatobiliary-type adenocarcinomas: how does ampullary carcinoma differ from other periampullary malignancies?
Annals of surgical oncology 2013;20(2):430-9.
2013: Ewa Pomianowska; Arne Westgaard; Oystein Mathisen; Ole Petter F Clausen; Ivar Gladhaug
Prognostic relevance of number and ratio of metastatic lymph nodes in resected pancreatic, ampullary, and distal bile duct carcinomas.
Annals of surgical oncology 2013;20(1):233-41.
2012: Jian Li; Shengting T Li; Charlotte Proby; Kai Wang; Paula M DeAngelis; Ola Forslund; Fei Gao; Thomas D Jensen; Steen Kølvraa; Lars Bolund; Ole Petter F Clausen
Array comparative genomic hybridization of keratoacanthomas and squamous cell carcinomas: different patterns of genetic aberrations suggest two distinct entities.
The Journal of investigative dermatology 2012;132(8):2060-6.
2012: Kristin Kaasen Jørgensen; Knut E A Lundin; Erik Schrumpf; Morten H Vatn; Geir Aamodt; Ole Petter F Clausen; Krzysztof Grzyb; Kirsten Muri Boberg
Inflammatory bowel disease in patients with primary sclerosing cholangitis: clinical characterization in liver transplanted and nontransplanted patients.
Inflammatory bowel diseases 2012;18(3):536-45.
2011: Arne Westgaard; Ole Petter F Clausen; Ivar P Gladhaug
Survival estimates after pancreatoduodenectomy skewed by non-standardized histopathology reports.
APMIS : acta pathologica, microbiologica, et immunologica Scandinavica 2011;119(10):689-700.
2010: Kirsten Hannisdal; Espen Burum-Auensen; Aasa R Schjølberg; Paula M de Angelis; Ole Petter F Clausen
Correlation between reduced expression of the spindle checkpoint protein BubR1 and bad prognosis in tonsillar carcinomas.
Head & neck 2010;32(10):1354-62.
2010: Ivar P Gladhaug; Arne Westgaard; Aasa R Schjølberg; Espen Burum-Auensen; Ewa Pomianowska; Ole Petter F Clausen
Spindle proteins in resected pancreatic head adenocarcinomas: BubR1 is an independent prognostic factor in pancreatobiliary-type tumours.
Histopathology 2010;56(3):345-55.
2010: Kirsten Hannisdal; Aasa Schjølberg; Paula M de Angelis; Morten Boysen; Ole Petter F Clausen
Human papillomavirus (HPV)-positive tonsillar carcinomas are frequent and have a favourable prognosis in males in Norway.
Acta oto-laryngologica 2010;130(2):293-9.
2010: Espen Burum-Auensen; Rolf I Skotheim; Aasa R Schjølberg; Jo Røislien; Ragnhild A Lothe; Ole Petter F Clausen
Spindle proteins are differentially expressed in the various histological subtypes of testicular germ cell tumors.
Journal of carcinogenesis 2010;9():1.
2009: Aasa R Schjølberg; Ole Petter F Clausen; Espen Burum-Auensen; Paula M de Angelis
Aneuploidy is associated with TP53 expression but not with BRCA1 or TERT expression in sporadic colorectal cancer.
Anticancer research 2009;29(11):4381-7.
2009: Arne Westgaard; Siri Larønningen; Christine Mellem; Tor J Eide; Ole Petter F Clausen; Bjørn Møller; Ivar Gladhaug
Are survival predictions reliable? Hospital volume versus standardisation of histopathologic reporting for accuracy of survival estimates after pancreatoduodenectomy for adenocarcinoma.
European journal of cancer (Oxford, England : 1990) 2009;45(16):2850-9.
2009: Arne Westgaard; Aasa R Schjølberg; Milada Cvancarova; Tor J Eide; Ole Petter F Clausen; Ivar Gladhaug
Differentiation markers in pancreatic head adenocarcinomas: MUC1 and MUC4 expression indicates poor prognosis in pancreatobiliary differentiated tumours.
Histopathology 2009;54(3):337-47.
2009: Stephan Brackmann; Solveig Norheim Andersen; Geir Aamodt; Frøydis Langmark; Ole Petter F Clausen; Erling Aadland; Olav Fausa; Andreas Rydning; Morten Vatn
Relationship between clinical parameters and the colitis-colorectal cancer interval in a cohort of patients with colorectal cancer in inflammatory bowel disease.
Scandinavian journal of gastroenterology 2009;44(1):46-55.
2008: E Burum-Auensen; Paula M DeAngelis; Aasa R Schjølberg; Jo Røislien; Odd Mjåland; Ole Petter F Clausen
Reduced level of the spindle checkpoint protein BUB1B is associated with aneuploidy in colorectal cancers.
Cell proliferation 2008;41(4):645-59.
2008: Arne Westgaard; Svetlana Tafjord; Inger N Farstad; Milada Cvancarova; Tor J Eide; Oystein Mathisen; Ole Petter F Clausen; Ivar Gladhaug
Pancreatobiliary versus intestinal histologic type of differentiation is an independent prognostic factor in resected periampullary adenocarcinoma.
BMC cancer 2008;8():170.
2008: Arne Westgaard; Svetlana Tafjord; Inger N Farstad; Milada Cvancarova; Tor J Eide; Oystein Mathisen; Ole Petter F Clausen; Ivar Gladhaug
Resectable adenocarcinomas in the pancreatic head: the retroperitoneal resection margin is an independent prognostic factor.
BMC cancer 2008;8():5.
2007: Birgitte Lid Adamsen; Katherine L Kravik; Ole Petter F Clausen; Paula M de Angelis
Apoptosis, cell cycle progression and gene expression in TP53-depleted HCT116 colon cancer cells in response to short-term 5-fluorouracil treatment.
International journal of oncology 2007;31(6):1491-500.
2007: E Burum-Auensen; Paula M DeAngelis; Aasa R Schjølberg; Jo Røislien; Solveig Norheim Andersen; Ole Petter F Clausen
Spindle proteins Aurora A and BUB1B, but not Mad2, are aberrantly expressed in dysplastic mucosa of patients with longstanding ulcerative colitis.
Journal of clinical pathology 2007;60(12):1403-8.
2007: Paula M de Angelis; Trond Stokke; Marzieh Beigi; Gøril Flatberg; Marianne Enger; Kristiane Haug; Hans Christian D Aass; Aasa R Schjølberg; Per Arne Andresen; Sarah Ariansen; Anne Signe Bø; Odd Mjåland; Ole Petter F Clausen
Chromosomal 20q gain in the DNA diploid component of aneuploid colorectal carcinomas.
International journal of cancer. Journal international du cancer 2007;120(12):2734-8.
2007: Tone Løvig; Solveig Norheim Andersen; Ole Petter F Clausen; Torleiv O Rognum
Microsatellite instability in long-standing ulcerative colitis.
Scandinavian journal of gastroenterology 2007;42(5):586-91.
2007: Espen Burum-Auensen; Paula M de Angelis; Aasa R Schjølberg; Katherine L Kravik; Marit Aure; Ole Petter F Clausen
Subcellular localization of the spindle proteins Aurora A, Mad2, and BUBR1 assessed by immunohistochemistry.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society 2007;55(5):477-86.
2006: Lars Frich; Kristin Bjørnland; Solveig Pettersen; Ole Petter F Clausen; Ivar Gladhaug
Increased activity of matrix metalloproteinase 2 and 9 after hepatic radiofrequency ablation.
The Journal of surgical research 2006;135(2):297-304.
2006: Kirsten Muri Boberg; Peter Jebsen; Ole Petter F Clausen; Aksel Foss; Lars Aabakken; Erik Schrumpf
Diagnostic benefit of biliary brush cytology in cholangiocarcinoma in primary sclerosing cholangitis.
Journal of hepatology 2006;45(4):568-74.
2006: Ole Petter F Clausen; Hans Christian D Aass; Marzieh Beigi; Karin J Purdie; Charlotte M Proby; Victoria L Brown; Morten Mattingsdal; Francesca Micci; Steen Kølvraa; Lars Bolund; Paula M DeAngelis
Are keratoacanthomas variants of squamous cell carcinomas? A comparison of chromosomal aberrations by comparative genomic hybridization.
The Journal of investigative dermatology 2006;126(10):2308-15.
2006: Lars Frich; Per Kristian Hol; Sumit Roy; Tom Mala; Bjørn Edwin; Ole Petter F Clausen; Ivar Gladhaug
Experimental hepatic radiofrequency ablation using wet electrodes: electrode-to-vessel distance is a significant predictor for delayed portal vein thrombosis.
European radiology 2006;16(9):1990-9.
2006: Xin Xie; Ole Petter F Clausen; Morten Boysen
Correlation of numerical aberrations of chromosomes X and 11 and poor prognosis in squamous cell carcinomas of the head and neck.
Archives of otolaryngology--head & neck surgery 2006;132(5):511-5.
2005: Bjørn Brandsaeter; Erik Schrumpf; Oystein Bentdal; Kurt Brabrand; Hans Jorgen Smith; Andreas Abildgaard; Ole Petter F Clausen; Kristian Bjoro
Recurrent primary sclerosing cholangitis after liver transplantation: a magnetic resonance cholangiography study with analyses of predictive factors.
Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society 2005;11(11):1361-9.
2004: Xin Xie; Ole Petter F Clausen; Morten Boysen
Bag-1 expression as a prognostic factor in tongue squamous cell carcinomas.
The Laryngoscope 2004;114(10):1785-90.
2004: Bjørn Brandsaeter; Erik Schrumpf; Ole Petter F Clausen; Andreas Abildgaard; Geir Hafsahl; Kristian Bjøro
Recurrent sclerosing cholangitis or ischemic bile duct lesions--a diagnostic challenge?
Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society 2004;10(8):1073-4.
2004: Paula M de Angelis; Bjørg Fjell; Katherine L Kravik; Terje Haug; Siv H Tunheim; Wenche H Reichelt; Marzieh Beigi; Ole Petter F Clausen; Eivind Galteland; Trond Stokke
Molecular characterizations of derivatives of HCT116 colorectal cancer cells that are resistant to the chemotherapeutic agent 5-fluorouracil.
International journal of oncology 2004;24(5):1279-88.
2003: Tom Mala; Lars Frich; Lars Aurdal; Ole Petter F Clausen; Bjørn Edwin; Odd Søreide; Ivar Gladhaug
Hepatic vascular inflow occlusion enhances tissue destruction during cryoablation of porcine liver.
The Journal of surgical research 2003;115(2):265-71.
2003: Tom Mala; Lars Frich; Lars Aurdal; Ole Petter F Clausen; Bjørn Edwin; Odd Soreide; Ivar Gladhaug
Intraoperative contrast-enhanced MR-imaging as predictor of tissue damage during cryoablation of porcine liver.
Magnetic resonance imaging 2003;21(7):733-40.
2003: Kirsten Muri Boberg; Peter Jebsen; Ole Petter F Clausen; Lars Aabakken; Inge B Brekke; Erik Schrumpf
Cholangiocarcinoma in situ in primary sclerosing cholangitis: diagnosis by brush cytology and treatment by liver transplantation.
Journal of hepatology 2003;39(3):453.
2003: Ola Forslund; Paula M DeAngelis; Marzieh Beigi; Aasa R Schjølberg; Ole Petter F Clausen
Identification of human papillomavirus in keratoacanthomas.
Journal of cutaneous pathology 2003;30(7):423-9.
2003: Tone Løvig; Lin Thorstensen; Bjørn Hofstad; Solveig Norheim Andersen; Ole Petter F Clausen; Morten Vatn; Ragnhild A Lothe; Torleiv O Rognum
Genetic and protein markers related to in situ growth and multiplicity in small sporadic colorectal adenomas.
Scandinavian journal of gastroenterology 2003;38(3):298-306.
2003: Xin Xie; Ole Petter F Clausen; Morten Boysen
Prognostic value of Bak expression in oral tongue squamous cell carcinomas.
Oncology reports 2003;10(2):369-74.
2002: Ole Petter F Clausen; Marzieh Beigi; Lars Bolund; Steen Kølvraa; Petter Gjersvik; Gro Mørk; Paula M de Angelis
Keratoacanthomas frequently show chromosomal aberrations as assessed by comparative genomic hybridization.
The Journal of investigative dermatology 2002;119(6):1367-72.
2002: Gustav Lehne; D R Sørensen; Geir Tjønnfjord; C Beiske; Tor-Arne Hagve; Hans Erik Rugstad; Ole Petter F Clausen
The cyclosporin PSC 833 increases survival and delays engraftment of human multidrug-resistant leukemia cells in xenotransplanted NOD-SCID mice.
Leukemia 2002;16(12):2388-94.
2002: Einar Björnsson; Kirsten Muri Boberg; S Cullen; K Fleming; Ole Petter F Clausen; O Fausa; Erik Schrumpf; Roger W Chapman
Patients with small duct primary sclerosing cholangitis have a favourable long term prognosis.
Gut 2002;51(5):731-5.
2002: Xin Xie; Ole Petter F Clausen; Morten Boysen
Prognostic significance of p21WAF1/CIP1 expression in tongue squamous cell carcinomas.
Archives of otolaryngology--head & neck surgery 2002;128(8):897-902.
2002: Erik Oie; Ole Petter F Clausen; Arne Yndestad; Haakon Kiil Grøgaard; Håvard Attramadal; Erik ØIje
Endothelin receptor antagonism attenuates cardiomyocyte apoptosis after induction of ischemia in rats.
Scandinavian cardiovascular journal : SCJ 2002;36(2):108-16.
2001: Kenneth A Fleming; Kirsten Muri Boberg; Hans Glaumann; Annika Bergquist; D Smith; Ole Petter F Clausen
Biliary dysplasia as a marker of cholangiocarcinoma in primary sclerosing cholangitis.
Journal of hepatology 2001;34(3):360-5.
2001: Paula M de Angelis; Trond Stokke; Marzieh Beigi; Odd Mjåland; Ole Petter F Clausen
Prognostic significance of recurrent chromosomal aberrations detected by comparative genomic hybridization in sporadic colorectal cancer.
International journal of colorectal disease 2001;16(1):38-45.
2001: Ole Petter F Clausen; Solveig Norheim Andersen; H Strøomkjaer; V Nielsen; Torleiv O Rognum; L Bolund; S Køolvraa
A strategy combining flow sorting and comparative genomic hybridization for studying genetic aberrations at different stages of colorectal tumorigenesis in ulcerative colitis.
Cytometry 2001;43(1):46-54.
2000: Anstein Bergan; Ivar Gladhaug; A Schjolberg; A B Bergan; Ole Petter F Clausen
p53 accumulation confers prognostic information in resectable adenocarcinomas with ductal but not with intestinal differentiation in the pancreatic head.
International journal of oncology 2000;17(5):921-6.
2000: Erik Oie; Reidar Bjørnerheim; Ole Petter F Clausen; Håvard Attramadal
Cyclosporin A inhibits cardiac hypertrophy and enhances cardiac dysfunction during postinfarction failure in rats.
American journal of physiology. Heart and circulatory physiology 2000;278(6):H2115-23.
2000: Kirsten Muri Boberg; Erik Schrumpf; Annika Bergquist; Ulrika Broomé; Albert Pares; H Remotti; A Schjölberg; Anne Spurkland; Ole Petter F Clausen
Cholangiocarcinoma in primary sclerosing cholangitis: K-ras mutations and Tp53 dysfunction are implicated in the neoplastic development.
Journal of hepatology 2000;32(3):374-80.
2000: Petter Gjersvik; E Egass; Ole Petter F Clausen
Grzybowski's generalized eruptive keratocanthomas: a case report.
European journal of dermatology : EJD 2000;10(2):135-8.
2000: Ole Petter F Clausen; G Olsen; Geir Tjønnfjord
[Flow cytometry--use in cell biology and benefits in clinical medicine].
Tidsskrift for den Norske lægeforening : tidsskrift for praktisk medicin, ny række 2000;120(4):489-95.
1999: Solveig Norheim Andersen; T Lovig; Ole Petter F Clausen; Arne Bakka; O Fausa; Torleiv O Rognum
Villous, hypermucinous mucosa in long standing ulcerative colitis shows high frequency of K-ras mutations.
Gut 1999;45(5):686-92.
1999: Xin Xie; Ole Petter F Clausen; Paula M de Angelis; Morten Boysen
The prognostic value of spontaneous apoptosis, Bax, Bcl-2, and p53 in oral squamous cell carcinoma of the tongue.
Cancer 1999;86(6):913-20.
1999: Xin Xie; Paula M de Angelis; Ole Petter F Clausen; Morten Boysen
Prognostic significance of proliferative and apoptotic markers in oral tongue squamous cell carcinomas.
Oral oncology 1999;35(5):502-9.
1999: Xin Xie; Morten Boysen; Ole Petter F Clausen; Magne Bryne
Prognostic value of Le(y) and H antigens in oral tongue carcinomas.
The Laryngoscope 1999;109(9):1474-80.
1999: Paula M de Angelis; Ole Petter F Clausen; Aasa R Schjølberg; Trond Stokke
Chromosomal gains and losses in primary colorectal carcinomas detected by CGH and their associations with tumour DNA ploidy, genotypes and phenotypes.
British journal of cancer 1999;80(3-4):526-35.
1999: P Jensen; Ole Petter F Clausen; Magne Bryne
Differences in sialyl-Tn antigen expression between keratoacanthomas and cutaneous squamous cell carcinomas.
Journal of cutaneous pathology 1999;26(4):183-9.
1998: Solveig Norheim Andersen; Torleiv O Rognum; Arne Bakka; Ole Petter F Clausen
Ki-67: a useful marker for the evaluation of dysplasia in ulcerative colitis.
Molecular pathology : MP 1998;51(6):327-32.
1998: Paula M de Angelis; Trond Stokke; Lin Thorstensen; Ragnhild A Lothe; Ole Petter F Clausen
Apoptosis and expression of Bax, Bcl-x, and Bcl-2 apoptotic regulatory proteins in colorectal carcinomas, and association with p53 genotype/phenotype.
Molecular pathology : MP 1998;51(5):254-61.
1998: Ole Petter F Clausen; Ragnhild A Lothe; Anne-Lise Børresen-Dale; Paula M de Angelis; Y Chen; Torleiv O Rognum; Gunn Iren Meling
Association of p53 accumulation with TP53 mutations, loss of heterozygosity at 17p13, and DNA ploidy status in 273 colorectal carcinomas.
Diagnostic molecular pathology : the American journal of surgical pathology, part B 1998;7(4):215-23.
1998: Xin Xie; Ole Petter F Clausen; Paula M de Angelis; Morten Boysen
Bax expression has prognostic significance that is enhanced when combined with AgNOR counts in glottic carcinomas.
British journal of cancer 1998;78(1):100-5.
1998: Erik Trondsen; Arne R Rosseland; Arne Bakka; Tom E Ruud; T Martinsen; Ole Petter F Clausen; Anstein Bergan; Ansgar O Aasen
An experimental study on effects of monopolar diathermy on the bile ducts.
The European journal of surgery = Acta chirurgica 1998;164(4):297-303.
1998: Gustav Lehne; Paula M de Angelis; Ole Petter F Clausen; Hans Erik Rugstad
Differential resistance to anthracyclines in P-glycoprotein-expressing human hepatoma cells.
International journal of clinical pharmacology and therapeutics 1998;36(2):89-92.
1997: Sophie D Fosså; Paula M de Angelis; Sigrid M Kraggerud; Donald P Evenson; L Theodorsen; Ole Petter F Clausen
Prediction of posttreatment spermatogenesis in patients with testicular cancer by flow cytometric sperm chromatin structure assay.
Cytometry 1997;30(4):192-6.
1997: Paula M de Angelis; Trond Stokke; Ole Petter F Clausen
NO38 expression and nucleolar counts are correlated with cellular DNA content but not with proliferation parameters in colorectal carcinomas.
Molecular pathology : MP 1997;50(4):201-8.
1997: Xin Xie; Ole Petter F Clausen; J Sudbö; Morten Boysen
Diagnostic and prognostic value of nucleolar organizer regions in normal epithelium, dysplasia, and squamous cell carcinoma of the oral cavity.
Cancer 1997;79(11):2200-8.
1997: O Oyen; Ole Petter F Clausen; Inge B Brekke; Arne Bakka; F M Pope
Spontaneous rupture of the renal artery in a patient with Ehlers-Danlos syndrome type IV.
European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery 1997;13(5):509-12.
1997: Erik Trondsen; Arne R Rosseland; Ole Petter F Clausen; Arne Bakka; E Engh; Einar Andreas Rødland; Ansgar O Aasen
An experimental study on effects of occlusion of the cystic duct in mice with or without emptying of the gallbladder.
European surgical research. Europäische chirurgische Forschung. Recherches chirurgicales européennes 1997;29(2):150-8.
1997: Xin Xie; T C Stenersen; Ole Petter F Clausen; Morten Boysen
Nucleolar organizer regions and prognosis in glottic squamous cell carcinoma.
Head & neck 1997;19(1):20-6.
1996: Gustav Lehne; Paula M de Angelis; Ole Petter F Clausen; Hans Erik Rugstad
Human hepatoma cells rich in P-glycoprotein are sensitive to aclarubicin and resistant to three other anthracyclines.
British journal of cancer 1996;74(11):1719-29.
1996: S Norheim Andersen; Jarle Breivik; Tone Løvig; Gunn Iren Meling; Gustav Gaudernack; Ole Petter F Clausen; A Schjölberg; O Fausa; F Langmark; E Lund; Torleiv O Rognum
K-ras mutations and HLA-DR expression in large bowel adenomas.
British journal of cancer 1996;74(1):99-108.
1996: C Lützow-Holm; P De Angelis; Ole Petter F Clausen
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.
The journal of investigative dermatology. Symposium proceedings / the Society for Investigative Dermatology, Inc. [and] European Society for Dermatological Research 1996;1(1):54-9.
1995: Paula M de Angelis; Trond Stokke; L Smedshammer; Ragnhild A Lothe; Gustav Lehne; Y Chen; Ole Petter F Clausen
P-glycoprotein is not expressed in a majority of colorectal carcinomas and is not regulated by mutant p53 in vivo.
British journal of cancer 1995;72(2):307-11.
1995: Gustav Lehne; Paula M de Angelis; Ole Petter F Clausen; T Egeland; T Tsuruo; Hans Erik Rugstad
Binding diversity of antibodies against external and internal epitopes of the multidrug resistance gene product P-glycoprotein.
Cytometry 1995;20(3):228-37.
1995: A Heyden; C Lützow-Holm; Ole Petter F Clausen; Per Brandtzaeg; Henrik S Huitfeldt
Topical application of 12-O-tetradecanoylphorbol-13-acetate induces dyssynchronous expression of keratins K1 and K10 in mouse epidermis.
Cytometry 1995;19(4):313-9.
1995: C Lützow-Holm; P De Angelis; Ole Petter F Clausen
Topical application of retinoic acid induces murine epidermal proliferation without reducing the cell cycle time. A bivariate BrdUrd/DNA flow cytometric study.
Epithelial cell biology 1995;4(1):2-7.
1995: C Lützow-Holm; A Heyden; Henrik S Huitfeldt; Per Brandtzaeg; Ole Petter F Clausen
Topical application of calcitriol alters expression of filaggrin but not keratin K1 in mouse epidermis.
Archives of dermatological research 1995;287(5):480-7.
1994: A Heyden; C Lützow-Holm; Ole Petter F Clausen; E V Thrane; Per Brandtzaeg; D R Roop; S H Yuspa; Henrik S Huitfeldt
Application of cantharidin or 12-O-tetradecanoylphorbol-13-acetate on mouse epidermis induces a cell population shift that causes altered keratin distribution.
Differentiation; research in biological diversity 1994;57(3):187-93.
1994: C Lützow-Holm; A Heyden; Henrik S Huitfeldt; Per Brandtzaeg; Ole Petter F Clausen
Differential effects of topical retinoic acid application on keratin K1 and filaggrin expression in mouse epidermis.
Differentiation; research in biological diversity 1994;57(3):179-85.
1994: A Heyden; C Lützow-Holm; Ole Petter F Clausen; Per Brandtzaeg; Henrik S Huitfeldt
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 biology 1994;3(3):96-101.
1994: E S Lie; V Engh; Morten Boysen; Ole Petter F Clausen; H Kvernvold; T C Stenersen; Finn Winther
Squamous cell carcinoma of the respiratory tract following laryngeal papillomatosis.
Acta oto-laryngologica 1994;114(2):209-12.
1993: C Lützow-Holm; P De Angelis; H Grøsvik; Ole Petter F Clausen
1,25-Dihydroxyvitamin D3 and the vitamin D analogue KH1060 induce hyperproliferation in normal mouse epidermis. A BrdUrd/DNA flow cytometric study.
Experimental dermatology 1993;2(3):113-20.
1993: E Aarnaes; Ole Petter F Clausen; B Kirkhus; P De Angelis
Heterogeneity in the mouse epidermal cell cycle analysed by computer simulations.
Cell proliferation 1993;26(3):205-19.
1993: Gunn Iren Meling; Ragnhild A Lothe; A L Børresen; C Graue; S Hauge; Ole Petter F Clausen; Torleiv O Rognum
The TP53 tumour suppressor gene in colorectal carcinomas. II. Relation to DNA ploidy pattern and clinicopathological variables.
British journal of cancer 1993;67(1):93-8.
1993: Gunn Iren Meling; Ragnhild A Lothe; A L Børresen; C Graue; S Hauge; Ole Petter F Clausen; Torleiv O Rognum
The TP53 tumour suppressor gene in colorectal carcinomas. I. Genetic alterations on chromosome 17.
British journal of cancer 1993;67(1):88-92.
1992: Gunn Iren Meling; Torleiv O Rognum; Ole Petter F Clausen; O Børmer; O C Lunde; Ellen Schlichting; O P Grüner; J Hognestad; Erik Trondsen; O Havig
Serum carcinoembryonic antigen in relation to survival, DNA ploidy pattern, and recurrent disease in 406 colorectal carcinoma patients.
Scandinavian journal of gastroenterology 1992;27(12):1061-8.
1992: Ole Petter F Clausen; K A Berg; B Kirkhus; Paula M de Angelis; Henrik S Huitfeldt
BrdUrd incorporation studies for evaluation of spermatogenesis in the blue fox.
Cytometry 1992;13(4):374-80.
1992: C Lützow-Holm; P De Angelis; Ole Petter F Clausen
Retinoic acid provokes a regeneration-like proliferative response in murine epidermis. A bivariate DNA/bromodeoxyuridine flow cytometric study.
Archives of dermatological research 1992;284(7):418-23.
1991: Henrik S Huitfeldt; A Heyden; Ole Petter F Clausen; E V Thrane; D Roop; S H Yuspa
Altered regulation of growth and expression of differentiation-associated keratins in benign mouse skin tumors.
Carcinogenesis 1991;12(11):2063-7.
1991: Gunn Iren Meling; Ragnhild A Lothe; A L Børresen; S Hauge; C Graue; Ole Petter F Clausen; Torleiv O Rognum
Genetic alterations within the retinoblastoma locus in colorectal carcinomas. Relation to DNA ploidy pattern studied by flow cytometric analysis.
British journal of cancer 1991;64(3):475-80.
1991: Gunn Iren Meling; Ole Petter F Clausen; A Bergan; A Schjølberg; Torleiv O Rognum
Flow cytometric DNA ploidy pattern in dysplastic mucosa, and in primary and metastatic carcinomas in patients with longstanding ulcerative colitis.
British journal of cancer 1991;64(2):339-44.
1991: Gunn Iren Meling; Torleiv O Rognum; Ole Petter F Clausen; Y Chen; O C Lunde; Ellen Schlichting; J N Wiig; J Hognestad; Arne Bakka; O Havig
Association between DNA ploidy pattern and cellular atypia in colorectal carcinomas. A new clinical application of DNA flow cytometric study?
Cancer 1991;67(6):1642-9.
1991: K S Hall; Bjørn Lien; Lars Mørkrid; Ole Petter F Clausen; Anstein Bergan; Hans Erik Rugstad
Long-term toxicity of preoperative 4'-epidoxorubicin (Epi-adriamycin) in partially hepatectomized rats.
European surgical research. Europäische chirurgische Forschung. Recherches chirurgicales européennes 1991;23(2):114-22.
1990: E Aarnaes; B Kirkhus; Ole Petter F Clausen
Mathematical model analysis of mouse epidermal cell kinetics measured by bivariate DNA/anti-bromodeoxyuridine flow cytometry and continuous [3H]-thymidine labelling.
Cell and tissue kinetics 1990;23(5):409-24.
1989: K S Hall; Bjørn Lien; J E Paulsen; Ole Petter F Clausen; Anstein Bergan; Hans Erik Rugstad
Effect of preoperative 4'-epidoxorubicin (epi-adriamycin) treatment on the regeneration and function of the liver in partially hepatectomized rats.
European surgical research. Europäische chirurgische Forschung. Recherches chirurgicales européennes 1989;21(3-4):196-204.
1988: B Kirkhus; Ole Petter F Clausen; H Fjordvang; K Helander; O H Iversen; J B Reitan; S Vaage
Characterization of bladder tumours by multiparameter flow cytometry with special reference to grade II tumours.
APMIS : acta pathologica, microbiologica, et immunologica Scandinavica 1988;96(9):783-92.
1988: E Thorud; Ole Petter F Clausen; E Aarnaes
Turnover and maturation kinetics in the hairless mouse epidermis. Continuous [3H]TdR labelling and mathematical model analyses.
Cell and tissue kinetics 1988;21(4):301-14.
1988: Ole Petter F Clausen; A R Schjølberg
Turnover and maturation kinetics in regenerating mouse epidermis.
APMIS. Supplementum 1988;2():111-9.
1988: Ole Petter F Clausen; B Kirkhus; K M Elgjo; S H Yuspa; A E Kilkenny; H Hennings
Selective detachment of a tetraploid subline of primary keratinocytes after treatment with the tumor promoter 12-0-tetradecanoylphorbol-13-acetate.
APMIS. Supplementum 1988;2():100-10.
1986: Ole Petter F Clausen; B Kirkhus; E Thorud; A Schjølberg; E Moen; A Cromarty
Evidence of mouse epidermal subpopulations with different cell cycle times.
The Journal of investigative dermatology 1986;86(3):266-70.
1985: E Thorud; E Aarnaes; Ole Petter F Clausen; R Bjerknes; P Anker
Estimation of circadian variations in cell cycle phase durations in murine epidermal basal cells.
Cell and tissue kinetics 1985;18(3):279-95.
1984: Ole Petter F Clausen; E Aarnaes; B Kirkhus; S Pedersen; E Thorud; L Bolund
Subpopulations of slowly cycling cells in S and G2 phase in mouse epidermis.
Cell and tissue kinetics 1984;17(4):351-65.
1981: Ole Petter F Clausen; E Thorud; E Aarnaes
Evidence of rapid and slow progression of cells through G2 phase in mouse epidermis: a comparison between phase durations measured by different methods.
Cell and tissue kinetics 1981;14(3):227-40.
1981: E Aarnaes; E Thorud; Ole Petter F Clausen
Model analysis of circadian rhythms in mouse epidermal basal cell proliferation.
Journal of theoretical biology 1981;88(2):355-70.
1980: E Thorud; Ole Petter F Clausen; R Bjerknes; E Aarnaes
The stathmokinetic method in vivo. Time-response with special reference to circadian variations in epidermal cell proliferation in the hairless mouse.
Cell and tissue kinetics 1980;13(6):625-34.