Biochemical endocrinology and metabolism research group Publications

Publications 2024

Gregersen I, Scarth ME, Abdullah R, Thorsby PM, Hauger LE, Haugaa KH, Sagen EL, Michelsen AE, Ueland T, Edvardsen T, Aukrust P, Almaas VM, Bjørnebekk AK, Halvorsen B (2024)
Elevated interleukin 8 and matrix metalloproteinase 9 levels are associated with myocardial pathology in users of Anabolic-Androgenic Steroids
Eur J Prev Cardiol (in press)
DOI 10.1093/eurjpc/zwae126, PubMed 38573232

Henriksen HCB, Havnes IA, Jørstad ML, Abdullah R, Thorsby PM, Hauger LE, Edvardsen T, Haugaa KH, Almaas VM, Bjørnebekk A (2024)
Treatment-seeking behavior and cardiovascular morbidity among men with anabolic-androgenic steroid use: A cross-sectional study
Scand J Med Sci Sports, 34 (1), e14554
DOI 10.1111/sms.14554, PubMed 38268076

Juvodden HT, Alnæs D, Agartz I, Andreassen OA, Server A, Thorsby PM, Westlye LT, Knudsen-Heier S (2024)
Cortical thickness and sub-cortical volumes in post-H1N1 narcolepsy type 1: A brain-wide MRI case-control study
Sleep Med, 116, 81-89
DOI 10.1016/j.sleep.2024.02.031, PubMed 38432031

Publications 2023

Brekke SM, Halvorsen ST, Bjørkvoll J, Thorsby PM, Rønnestad A, Zykova SN, Bakke LH, Dahl SR, Haaland K, Eger SHW, Solberg MT, Solevåg AL (2023)
The association between infant salivary cortisol and parental presence in the neonatal intensive care unit during and after COVID-19 visitation restrictions: A cross-sectional study
Early Hum Dev, 182, 105788
DOI 10.1016/j.earlhumdev.2023.105788, PubMed 37224589

Dahll LK, Westbye AB, Vinorum K, Sejersted Y, Barøy T, Thorsby PM, Hammerstad SS (2023)
Clinical and Biochemical Characteristics of Untreated Adult Patients With Resistance to Thyroid Hormone Alpha
J Endocr Soc, 7 (8), bvad089
DOI 10.1210/jendso/bvad089, PubMed 37469961

Guldhaug NA, Røys EÅ, Viste K, Thorsby PM, Sylte MS, Torsvik J, Strand H, Alaour B, Marber M, Omland T, Aakre KM (2023)
Week-to-week within-subject and between-subject biological variation of copeptin
Clin Chem Lab Med, 62 (2), e29-e33
DOI 10.1515/cclm-2023-0673, PubMed 37533276

Hansen BH, Andresen HN, Gjesvik J, Thorsby PM, Naerland T, Knudsen-Heier S (2023)
Associations between psychiatric comorbid disorders and executive dysfunctions in hypocretin-1 deficient pediatric narcolepsy type1
Sleep Med, 109, 149-157
DOI 10.1016/j.sleep.2023.06.021, PubMed 37442017

Juvodden HT, Alnæs D, Lund MJ, Agartz I, Andreassen OA, Server A, Thorsby PM, Westlye LT, Knudsen Heier S (2023)
Larger hypothalamic volume in narcolepsy type 1
Sleep, 46 (11)
DOI 10.1093/sleep/zsad173, PubMed 37463428

Mariampillai JE, Halvorsen LV, Larstorp AC, Heimark S, Waldum-Grevbo B, Kjeldsen SE, Nordby G, Stenehjem AE, Berg JP, Høieggen A (2023)
[Not Available]
Tidsskr Nor Laegeforen, 143 (12)
DOI 10.4045/tidsskr.22.0822, PubMed 37668137

Molteberg E, Thorsby PM, Kverneland M, Iversen PO, Selmer KK, Hofoss D, Nakken KO, Taubøll E (2023)
Stress biomarkers in adult patients with drug-resistant epilepsy on a modified Atkins diet: A prospective study
Epilepsia Open, 8 (4), 1331-1339
DOI 10.1002/epi4.12808, PubMed 37574592

Næss-Andresen ML, Jenum AK, Berg JP, Falk RS, Sletner L (2023)
The impact of recommending iron supplements to women with depleted iron stores in early pregnancy on use of supplements, and factors associated with changes in iron status from early pregnancy to postpartum in a multi-ethnic population-based cohort
BMC Pregnancy Childbirth, 23 (1), 350
DOI 10.1186/s12884-023-05668-5, PubMed 37179290

Ollila HM, Sharon E, Lin L, Sinnott-Armstrong N, Ambati A, Yogeshwar SM, Hillary RP, Jolanki O, Faraco J, Einen M, Luo G, Zhang J, Han F, Yan H, Dong XS, Li J, Zhang J, Hong SC, Kim TW, Dauvilliers Y, Barateau L, Lammers GJ, Fronczek R, Mayer G, Santamaria J et al. (2023)
Narcolepsy risk loci outline role of T cell autoimmunity and infectious triggers in narcolepsy
Nat Commun, 14 (1), 2709
DOI 10.1038/s41467-023-36120-z, PubMed 37188663

Pfabigan DM, Frogner ER, Schéle E, Thorsby PM, Skålhegg BS, Dickson SL, Sailer U (2023)
Ghrelin is related to lower brain reward activation during touch
Psychophysiology, 61 (2), e14443
DOI 10.1111/psyp.14443, PubMed 37737514

Scarth M, Hauger LE, Thorsby PM, Leknes S, Hullstein IR, Westlye LT, Bjørnebekk A (2023)
Supraphysiological testosterone levels from anabolic steroid use and reduced sensitivity to negative facial expressions in men
Psychopharmacology (Berl), 241 (4), 701-715
DOI 10.1007/s00213-023-06497-2, PubMed 37993638

Trondrud LM, Ugland C, Ropstad E, Loe LE, Albon S, Stien A, Evans AL, Thorsby PM, Veiberg V, Irvine RJ, Pigeon G (2023)
Author Correction: Stress responses to repeated captures in a wild ungulate
Sci Rep, 13 (1), 2724
DOI 10.1038/s41598-023-29744-0, PubMed 36792793

Viste R, Follin LF, Kornum BR, Lie BA, Viken MK, Thorsby PM, Rootwelt T, Christensen JAE, Knudsen-Heier S (2023)
Increased muscle activity during sleep and more RBD symptoms in H1N1-(Pandemrix)-vaccinated narcolepsy type 1 patients compared with their non-narcoleptic siblings
Sleep, 46 (3)
DOI 10.1093/sleep/zsac316, PubMed 36562330

Westbye AB, Aas FE, Dahl SR, Zykova SN, Kelp O, Dahll LK, Thorsby PM (2023)
Large method differences for free thyroid hormone assays in the hyperthyroid range can affect assessment of hyperthyroid status: Comparison of Abbott Alinity to Roche Cobas, Siemens Centaur and equilibrium dialysis LC-MS/MS
Clin Biochem, 121-122, 110676
DOI 10.1016/j.clinbiochem.2023.110676, PubMed 37848158

Åkerman AK, Sævik ÅB, Thorsby PM, Methlie P, Quinkler M, Jørgensen AP, Höybye C, Debowska AJ, Nedrebø BG, Dahle AL, Carlsen S, Tomkowicz A, Sollid ST, Nermoen I, Grønning K, Dahlqvist P, Grimnes G, Skov J, Finnes T, Wahlberg J, Holte SE, Simunkova K, Kämpe O, Husebye ES, Øksnes M et al. (2023)
Plasma-Metanephrines in Patients with Autoimmune Addison's Disease with and without Residual Adrenocortical Function
J Clin Med, 12 (10)
DOI 10.3390/jcm12103602, PubMed 37240708

Publications 2022

Bjørnebekk A, Scarth M, Neupane SP, Westlye LT, Hullstein IR, Thorsby PM, Halvorsen B (2022)
Use of High-Dose Androgens Is Associated with Reduced Brain-Derived Neurotrophic Factor in Male Weightlifters
Neuroendocrinology, 113 (1), 36-47
DOI 10.1159/000526418, PubMed 35944495

Edstorp J, Wei Y, Ahlqvist E, Alfredsson L, Grill V, Groop L, Rasouli B, Sørgjerd EP, Thorsby PM, Tuomi T, Åsvold BO, Carlsson S (2022)
Smoking, use of smokeless tobacco, HLA genotypes and incidence of latent autoimmune diabetes in adults
Diabetologia, 66 (1), 70-81
DOI 10.1007/s00125-022-05763-w, PubMed 35900371

Jansen A, Aaseth JO, Lyche JL, Berg JP, Müller MHB, Lydersen S, Farup PG (2022)
Do changes in persistent organic pollutants after bariatric surgery cause endocrine disruption?
Chemosphere, 313, 137461
DOI 10.1016/j.chemosphere.2022.137461, PubMed 36470361

Kazmi SSH, Safi N, Berge ST, Kazmi M, Sundhagen JO, Julien K, Thorsby PM, Ånonsen KV, Medhus AW, Hisdal J (2022)
Plasma α-Glutathione S-Transferase in Patients with Chronic Mesenteric Ischemia and Median Arcuate Ligament Syndrome
Vasc Health Risk Manag, 18, 567-574
DOI 10.2147/VHRM.S365625, PubMed 35903288

Lee-Ødegård S, Ueland T, Thorsby PM, Aukrust P, Michelsen AE, Halvorsen B, Drevon CA, Birkeland KI (2022)
Fetuin-A mediates the difference in adipose tissue insulin resistance between young adult pakistani and norwegian patients with type 2 diabetes
BMC Endocr Disord, 22 (1), 208
DOI 10.1186/s12902-022-01127-y, PubMed 35978354

Melsom HS, Heiestad CM, Eftestøl E, Torp MK, Gundersen K, Bjørnebekk AK, Thorsby PM, Stensløkken KO, Hisdal J (2022)
Reduced arterial elasticity after anabolic-androgenic steroid use in young adult males and mice
Sci Rep, 12 (1), 9707
DOI 10.1038/s41598-022-14065-5, PubMed 35690664

Molteberg E, Taubøll E, Kverneland M, Iversen PO, Selmer KK, Nakken KO, Hofoss D, Thorsby PM (2022)
Substantial early changes in bone and calcium metabolism among adult pharmacoresistant epilepsy patients on a modified Atkins diet
Epilepsia, 63 (4), 880-891
DOI 10.1111/epi.17169, PubMed 35092022

Næss-Andresen ML, Jenum AK, Berg JP, Falk RS, Sletner L (2022)
Prevalence of postpartum anaemia and iron deficiency by serum ferritin, soluble transferrin receptor and total body iron, and associations with ethnicity and clinical factors: a Norwegian population-based cohort study
J Nutr Sci, 11, e46
DOI 10.1017/jns.2022.45, PubMed 35754987

Pfabigan DM, Vezzani C, Thorsby PM, Sailer U (2022)
Sex difference in human olfactory sensitivity is associated with plasma adiponectin
Horm Behav, 145, 105235
DOI 10.1016/j.yhbeh.2022.105235, PubMed 35868172

Stenehjem JS, Støer NC, Ghiasvand R, Grimsrud TK, Babigumira R, Rees JR, Nilsen LT, Johnsen B, Thorsby PM, Veierød MB, Robsahm TE (2022)
Prediagnostic serum 25-hydroxyvitamin D and leptin in relation to melanoma-specific death and overall death
Pigment Cell Melanoma Res, 35 (2), 280-284
DOI 10.1111/pcmr.13026, PubMed 34978150

Sundet BK, Kreyberg I, Staff AC, Carlsen KCL, Bains KES, Berg JP, Granum B, Haugen G, Hedlin G, Jonassen CM, Nordhagen LS, Nordlund B, Rehbinder EM, Rudi K, Rueegg CS, Sjøborg KD, Skjerven HO, Söderhäll C, Vettukattil R, Sugulle M (2022)
The effect of nicotine-containing products and fetal sex on placenta-associated circulating midpregnancy biomarkers
Biol Sex Differ, 13 (1), 39
DOI 10.1186/s13293-022-00443-1, PubMed 35841068

Svistounov D, Solbu MD, Jenssen TG, Mathisen UD, Hansen T, Elgstøen KBP, Zykova SN (2022)
Development of quantitative assay for simultaneous measurement of purine metabolites and creatinine in biobanked urine by liquid chromatography-tandem mass spectrometry
Scand J Clin Lab Invest, 82 (1), 37-49
DOI 10.1080/00365513.2021.2015799, PubMed 35048747

Trondrud LM, Ugland C, Ropstad E, Loe LE, Albon S, Stien A, Evans AL, Thorsby PM, Veiberg V, Irvine RJ, Pigeon G (2022)
Stress responses to repeated captures in a wild ungulate
Sci Rep, 12 (1), 16289
DOI 10.1038/s41598-022-20270-z, PubMed 36175511

Ueland GÅ, Dahl SR, Methlie P, Hessen S, Husebye ES, Thorsby PM (2022)
Adrenal steroid profiling as a diagnostic tool to differentiate polycystic ovary syndrome from nonclassic congenital adrenal hyperplasia: pinpointing easy screening possibilities and normal cutoff levels using liquid chromatography tandem mass spectrometry
Fertil Steril, 118 (2), 384-391
DOI 10.1016/j.fertnstert.2022.05.012, PubMed 35725670

Öberg J, Jorde R, Figenschau Y, Thorsby PM, Dahl SR, Winther A, Grimnes G (2022)
100 YEARS OF VITAMIN D: Combined hormonal contraceptives and vitamin D metabolism in adolescent girls
Endocr Connect, 11 (3)
DOI 10.1530/EC-21-0395, PubMed 35213326

Øystese KAB, Casar-Borota O, Berg-Johnsen J, Berg JP, Bollerslev J (2022)
Distribution of E- and N-cadherin in subgroups of non-functioning pituitary neuroendocrine tumours
Endocrine, 77 (1), 151-159
DOI 10.1007/s12020-022-03051-6, PubMed 35674926

Publications 2021

Ambaw YA, Dahl SR, Chen Y, Greibrokk T, Lundanes E, Lazraq I, Shinde S, Selvalatchmanan J, Wenk MR, Sellergren B, Torta F (2021)
Tailored Polymer-Based Selective Extraction of Lipid Mediators from Biological Samples
Metabolites, 11 (8)
DOI 10.3390/metabo11080539, PubMed 34436480

Birkeland E, Gharagozlian S, Birkeland KI, Holm OKS, Thorsby PM, Aas AM (2021)
Effect of inulin-type fructans on appetite in patients with type 2 diabetes: a randomised controlled crossover trial
J Nutr Sci, 10, e72
DOI 10.1017/jns.2021.70, PubMed 34589204

Dahll LK, Haave EM, Dahl SR, Aas FE, Thorsby PM (2021)
Endogenous anti-streptavidin antibodies causing erroneous laboratory results more common than anticipated
Scand J Clin Lab Invest, 81 (2), 92-103
DOI 10.1080/00365513.2020.1858493, PubMed 33502256

Eidet JR, Akopian M, Olstad OK, Jørstad ØK, Moe MC, Petrovski G, Pepaj M (2021)
The acute phase response protein SERPINA3 is increased in tear fluid from the unaffected eyes of patients with unilateral acute anterior uveitis
J Ophthalmic Inflamm Infect, 11 (1), 19
DOI 10.1186/s12348-021-00249-z, PubMed 34212267

Johannessen KA, Wear NKS, Toska K, Hansbo M, Berg JP, Fosse E (2021)
Pathologic Blood Samples Tolerate Exposure to Vibration and High Turbulence in Simulated Drone Flights, but Plasma Samples Should be Centrifuged After Flight
IEEE J Transl Eng Health Med, 9, 4000110
DOI 10.1109/JTEHM.2021.3053172, PubMed 33542860

Oftedal A, Bekkhus M, Haugen G, Braithwaite E, Bollerslev J, Godang K, Thorsby PM, Kaasen A (2021)
Changes in maternal cortisol, cortisol binding globulin and cortisone levels following diagnosis of fetal anomaly
Psychoneuroendocrinology, 135, 105574
DOI 10.1016/j.psyneuen.2021.105574, PubMed 34741978

Rognes IN, Pischke SE, Ottestad W, Røislien J, Berg JP, Johnson C, Eken T, Mollnes TE (2021)
Increased complement activation 3 to 6 h after trauma is a predictor of prolonged mechanical ventilation and multiple organ dysfunction syndrome: a prospective observational study
Mol Med, 27 (1), 35
DOI 10.1186/s10020-021-00286-3, PubMed 33832430

Solevåg AL, Zykova SN, Thorsby PM, Schmölzer GM (2021)
Metabolomics to Diagnose Oxidative Stress in Perinatal Asphyxia: Towards a Non-Invasive Approach
Antioxidants (Basel), 10 (11)
DOI 10.3390/antiox10111753, PubMed 34829624

Syversen U, Mosti MP, Mynarek IM, Vedal TSJ, Aasarød K, Basso T, Reseland JE, Thorsby PM, Asvold BO, Eriksen EF, Stunes AK (2021)
Evidence of impaired bone quality in men with type 1 diabetes: a cross-sectional study
Endocr Connect, 10 (8), 955-964
DOI 10.1530/EC-21-0193, PubMed 34289447

Thorsby PM, Gjelstad A (2021)
When the patient is an athlete
Tidsskr Nor Laegeforen, 141 (7)
DOI 10.4045/tidsskr.21.0074, PubMed 33950644

Viste R, Viken MK, Lie BA, Juvodden HT, Nordstrand SEH, Thorsby PM, Rootwelt T, Kornum BR, Knudsen-Heier S (2021)
High nocturnal sleep fragmentation is associated with low T lymphocyte P2Y11 protein levels in narcolepsy type 1
Sleep, 44 (8)
DOI 10.1093/sleep/zsab062, PubMed 33710305

Publications 2020

Atukunda P, Muhoozi GK, Diep LM, Berg JP, Westerberg AC, Iversen PO (2020)
The association of urine markers of iodine intake with development and growth among children in rural Uganda: a secondary analysis of a randomised education trial
Public Health Nutr, 24 (12), 3730-3739
DOI 10.1017/S1368980020001603, PubMed 32654677

Berg JP, Gladhaug IP (2020)
[The thesis defence is part of the doctoral degree examination]
Tidsskr Nor Laegeforen, 140 (9)
DOI 10.4045/tidsskr.20.0328, PubMed 32549008

Berg JP, Gladhaug IP (2020)
The Thesis is part of the doctoral degree
Tidsskr. Nor. Laegeforen., 140 (9), 866-867

Bornstedt ME, Gjerlaugsen N, Olstad OK, Berg JP, Bredahl MK, Thorsby PM (2020)
Vitamin D metabolites influence expression of genes concerning cellular viability and function in insulin producing β-cells (INS1E)
Gene, 746, 144649
DOI 10.1016/j.gene.2020.144649, PubMed 32251702

Brusletto BS, Løberg EM, Hellerud BC, Goverud IL, Berg JP, Olstad OK, Gopinathan U, Brandtzaeg P, Øvstebø R (2020)
Extensive Changes in Transcriptomic "Fingerprints" and Immunological Cells in the Large Organs of Patients Dying of Acute Septic Shock and Multiple Organ Failure Caused by Neisseria meningitidis
Front Cell Infect Microbiol, 10, 42
DOI 10.3389/fcimb.2020.00042, PubMed 32154187

Eidet JR, Jørstad ØK, Fostad IG, Olstad OK, Sørland RØ, Moe MC, Petrovski G, Pepaj M (2020)
Unilateral acute anterior uveitis is associated with ipsilateral changes in the tear fluid proteome that involves the LXR/RXR pathway
J Ophthalmic Inflamm Infect, 10 (1), 13
DOI 10.1186/s12348-020-00204-4, PubMed 32458144

Eieland AK, Normann KR, Sundaram AYM, Nyman TA, Øystese KAB, Lekva T, Berg JP, Bollerslev J, Olarescu NC (2020)
Distinct Pattern of Endoplasmic Reticulum Protein Processing and Extracellular Matrix Proteins in Functioning and Silent Corticotroph Pituitary Adenomas
Cancers (Basel), 12 (10)
DOI 10.3390/cancers12102980, PubMed 33066652

Ellingsen MM, Johannesen SL, Martinsen EW, Dahl SR, Hallgren M (2020)
Effects of Acute Exercise on Drug Craving, Self-Esteem, Mood, and Affect in Adults with Polysubstance Use Disorder: Protocol for a Multicenter Randomized Controlled Trial
JMIR Res Protoc, 9 (10), e18553
DOI 10.2196/18553, PubMed 33048056

Hansen BH, Juvodden HT, Nordstrand SH, Viste R, Thorsby PM, Swanson D, Nilsen KB, Nærland T, Knudsen-Heier S (2020)
High prevalence of ADHD symptoms in unmedicated youths with post-H1N1 narcolepsy type 1
Sleep Med, 75, 171-180
DOI 10.1016/j.sleep.2020.06.014, PubMed 32858357

Ingstad F, Solberg LB, Nordsletten L, Thorsby PM, Hestnes I, Frihagen F (2020)
Vitamin D status and complications, readmissions, and mortality after hip fracture
Osteoporos Int, 32 (5), 873-881
DOI 10.1007/s00198-020-05739-9, PubMed 33201249

Jansen A, Berg JP, Klungsøyr O, Müller MHB, Lyche JL, Aaseth JO (2020)
The Influence of Persistent Organic Pollutants on Thyroidal, Reproductive and Adrenal Hormones After Bariatric Surgery
Obes Surg, 30 (4), 1368-1378
DOI 10.1007/s11695-019-04273-w, PubMed 31721064

Juvodden HT, Viken MK, Nordstrand SEH, Viste R, Westlye LT, Thorsby PM, Lie BA, Knudsen-Heier S (2020)
HLA and sleep parameter associations in post-H1N1 narcolepsy type 1 patients and first-degree relatives
Sleep, 43 (3)
DOI 10.1093/sleep/zsz239, PubMed 31606740

Kvammen JA, Thomassen RA, Kjeserud CN, Sæland C, Godang K, Bollerslev J, Thorsby PM, Juliusson PB, Bentsen BS, Henriksen C (2020)
Bone mineral density and vitamin D in paediatric intestinal failure patients receiving home parenteral nutrition
Clin Nutr ESPEN, 39, 234-241
DOI 10.1016/j.clnesp.2020.06.006, PubMed 32859323

Mitlid-Mork B, Bowe S, Gran JM, Bolstad N, Berg JP, Redman CW, Staff AC, Sugulle M (2020)
Maternal placental growth factor and soluble fms-like tyrosine kinase-1 reference ranges in post-term pregnancies: A prospective observational study
PLoS One, 15 (10), e0240473
DOI 10.1371/journal.pone.0240473, PubMed 33079955

Molteberg E, Thorsby PM, Kverneland M, Iversen PO, Selmer KK, Nakken KO, Taubøll E (2020)
Effects of modified Atkins diet on thyroid function in adult patients with pharmacoresistant epilepsy
Epilepsy Behav, 111, 107285
DOI 10.1016/j.yebeh.2020.107285, PubMed 32698106

Nordstrand SEH, Juvodden HT, Viste R, Rootwelt T, Karlsen TI, Thorsby PM, Swanson D, Nilsen KB, Hansen BH, Knudsen-Heier S (2020)
Obesity and other medical comorbidities among NT1 patients after the Norwegian H1N1 influenza epidemic and vaccination campaign
Sleep, 43 (5)
DOI 10.1093/sleep/zsz277, PubMed 31724727

Shabestari M, Shabestari YR, Landin MA, Pepaj M, Cleland TP, Reseland JE, Eriksen EF (2020)
Altered protein levels in bone marrow lesions of hip osteoarthritis: Analysis by proteomics and multiplex immunoassays
Int J Rheum Dis, 23 (6), 788-799
DOI 10.1111/1756-185X.13843, PubMed 32383346

Stenehjem JS, Støer NC, Ghiasvand R, Grimsrud TK, Babigumira R, Rees JR, Nilsen LT, Johnsen B, Thorsby PM, Veierød MB, Robsahm TE (2020)
Prediagnostic serum 25-hydroxyvitamin D and melanoma risk
Sci Rep, 10 (1), 20129
DOI 10.1038/s41598-020-77155-2, PubMed 33208828

Publications 2019

Balasuriya CND, Larose TL, Mosti MP, Evensen KAI, Jacobsen GW, Thorsby PM, Stunes AK, Syversen U (2019)
Maternal serum retinol, 25(OH)D and 1,25(OH)2D concentrations during pregnancy and peak bone mass and trabecular bone score in adult offspring at 26-year follow-up
PLoS One, 14 (9), e0222712
DOI 10.1371/journal.pone.0222712, PubMed 31557195

Beitland S, Nakstad ER, Berg JP, Trøseid AS, Brusletto BS, Brunborg C, Lundqvist C, Sunde K (2019)
Urine β-2-Microglobulin, Osteopontin, and Trefoil Factor 3 May Early Predict Acute Kidney Injury and Outcome after Cardiac Arrest
Crit Care Res Pract, 2019, 4384796
DOI 10.1155/2019/4384796, PubMed 31205786

Berg JP, Gladhaug IP (2019)
[It is essential to fulfil the purpose of the trial lecture]
Tidsskr Nor Laegeforen, 139 (16)
DOI 10.4045/tidsskr.19.0646, PubMed 31686487

Berg JP, Gladhaug IP (2019)
It is important that the purpose of the trial lecture is fulfilled
Tidsskr. Nor. Laegeforen., 139 (16), 1534

Bornstedt ME, Gjerlaugsen N, Pepaj M, Bredahl MKL, Thorsby PM (2019)
Vitamin D Increases Glucose Stimulated Insulin Secretion from Insulin Producing Beta Cells (INS1E)
Int J Endocrinol Metab, 17 (1), e74255
DOI 10.5812/ijem.74255, PubMed 30881469

Brovold H, Lund T, Svistounov D, Solbu MD, Jenssen TG, Ytrehus K, Zykova SN (2019)
Crystallized but not soluble uric acid elicits pro-inflammatory response in short-term whole blood cultures from healthy men
Sci Rep, 9 (1), 10513
DOI 10.1038/s41598-019-46935-w, PubMed 31324844

Gustafsson MK, Romundstad PR, Stafne SN, Helvik AS, Stunes AK, Mørkved S, Salvesen KÅ, Thorsby PM, Mosti MP, Syversen U (2019)
The effect of an exercise program in pregnancy on vitamin D status among healthy, pregnant Norwegian women: a randomized controlled trial
BMC Pregnancy Childbirth, 19 (1), 76
DOI 10.1186/s12884-019-2220-z, PubMed 30786861

Jorde R, Stunes AK, Kubiak J, Grimnes G, Thorsby PM, Syversen U (2019)
Smoking and other determinants of bone turnover
PLoS One, 14 (11), e0225539
DOI 10.1371/journal.pone.0225539, PubMed 31765401

Jorde R, Stunes AK, Kubiak J, Joakimsen R, Grimnes G, Thorsby PM, Syversen U (2019)
Effects of vitamin D supplementation on bone turnover markers and other bone-related substances in subjects with vitamin D deficiency
Bone, 124, 7-13
DOI 10.1016/j.bone.2019.04.002, PubMed 30959189

Juvodden HT, Alnæs D, Lund MJ, Dietrichs E, Thorsby PM, Westlye LT, Knudsen S (2019)
Hypocretin-deficient narcolepsy patients have abnormal brain activation during humor processing
Sleep, 42 (7)
DOI 10.1093/sleep/zsz082, PubMed 30923809

Næss-Andresen ML, Eggemoen ÅR, Berg JP, Falk RS, Jenum AK (2019)
Serum ferritin, soluble transferrin receptor, and total body iron for the detection of iron deficiency in early pregnancy: a multiethnic population-based study with low use of iron supplements
Am J Clin Nutr, 109 (3), 566-575
DOI 10.1093/ajcn/nqy366, PubMed 30831600

Panton KK, Mikkelsen G, Irgens WØ, Hovde AK, Killingmo MW, Øien MA, Thorsby PM, Åsberg A (2019)
New reference intervals for cortisol, cortisol binding globulin and free cortisol index in women using ethinyl estradiol
Scand J Clin Lab Invest, 79 (5), 314-319
DOI 10.1080/00365513.2019.1622031, PubMed 31161807

Svanevik M, Risstad H, Hofsø D, Blom-Høgestøl IK, Kristinsson JA, Sandbu R, Småstuen MC, Thorsby PM, Mala T, Hjelmesæth J (2019)
Bone Turnover Markers After Standard and Distal Roux-en-Y Gastric Bypass: Results from a Randomized Controlled Trial
Obes Surg, 29 (9), 2886-2895
DOI 10.1007/s11695-019-03909-1, PubMed 31065919

Tapia G, Mårild K, Dahl SR, Lund-Blix NA, Viken MK, Lie BA, Njølstad PR, Joner G, Skrivarhaug T, Cohen AS, Størdal K, Stene LC (2019)
Maternal and Newborn Vitamin D-Binding Protein, Vitamin D Levels, Vitamin D Receptor Genotype, and Childhood Type 1 Diabetes
Diabetes Care, 42 (4), 553-559
DOI 10.2337/dc18-2176, PubMed 30692241

Publications 2018

Berg AO, Jørgensen KN, Nerhus M, Athanasiu L, Popejoy AB, Bettella F, Norbom LCB, Gurholt TP, Dahl SR, Andreassen OA, Djurovic S, Agartz I, Melle I (2018)
Vitamin D levels, brain volume, and genetic architecture in patients with psychosis
PLoS One, 13 (8), e0200250
DOI 10.1371/journal.pone.0200250, PubMed 30142216

Dahl SR, Nermoen I, Brønstad I, Husebye ES, Løvås K, Thorsby PM (2018)
Assay of steroids by liquid chromatography-tandem mass spectrometry in monitoring 21-hydroxylase deficiency
Endocr Connect, 7 (12), 1542-1550
DOI 10.1530/EC-18-0453, PubMed 30530876

Gopinathan U, Redalen KR, Trøseid AM, Kierulf P, Brandtzaeg P, Ree AH, Berg JP, Øvstebø R (2018)
Large-scale reduction of tyrosine kinase activities in human monocytes stimulated in vitro with N. meningitidis
PLoS One, 13 (1), e0181912
DOI 10.1371/journal.pone.0181912, PubMed 29357362

Gustafsson MK, Romundstad PR, Stafne SN, Helvik AS, Stunes AK, Mørkved S, Salvesen KÅ, Thorsby PM, Syversen U (2018)
Alterations in the vitamin D endocrine system during pregnancy: A longitudinal study of 855 healthy Norwegian women
PLoS One, 13 (4), e0195041
DOI 10.1371/journal.pone.0195041, PubMed 29641551

Hassel B, Mariussen E, Idland AV, Dahl GT, Ræder J, Frihagen F, Berg JP, Chaudhry FA, Wyller TB, Watne LO (2018)
CSF sodium at toxic levels precedes delirium in hip fracture patients
Neurotoxicology, 69, 11-16
DOI 10.1016/j.neuro.2018.08.010, PubMed 30149051

Juvodden HT, Alnæs D, Lund MJ, Agartz I, Andreassen OA, Dietrichs E, Thorsby PM, Westlye LT, Knudsen S (2018)
Widespread white matter changes in post-H1N1 patients with narcolepsy type 1 and first-degree relatives
Sleep, 41 (10)
DOI 10.1093/sleep/zsy145, PubMed 30016530

Kubiak J, Thorsby PM, Kamycheva E, Jorde R (2018)
Vitamin D supplementation does not improve CVD risk factors in vitamin D-insufficient subjects
Endocr Connect, 7 (6), 840-849
DOI 10.1530/EC-18-0144, PubMed 29764903

Pasovic L, Utheim TP, Reppe S, Khan AZ, Jackson CJ, Thiede B, Berg JP, Messelt EB, Eidet JR (2018)
Improvement of Storage Medium for Cultured Human Retinal Pigment Epithelial Cells Using Factorial Design
Sci Rep, 8 (1), 5688
DOI 10.1038/s41598-018-24121-8, PubMed 29632395

Schwettmann L, Berg JP, Sandberg S (2018)
[Not Available]
Tidsskr Nor Laegeforen, 138 (15)
DOI 10.4045/tidsskr.18.0633, PubMed 30277042

Schwettmann L, Berg JP, Sandberg S (2018)
HbA1c must be indicated in mmol/mol
Tidsskr. Nor. Laegeforen., 138 (15), 1404-1405

Sørgjerd EP, Åsvold BO, Thorsby PM, Grill V (2018)
Individuals Fulfilling Criteria for Type 2 Diabetes Rather Than LADA Display Transient Signs of Autoimmunity Preceding Diagnosis With Possible Clinical Implications: The HUNT Study
Diabetes Care, 41 (12), e161-e163
DOI 10.2337/dc18-1069, PubMed 30327361

Ueland GÅ, Methlie P, Øksnes M, Thordarson HB, Sagen J, Kellmann R, Mellgren G, Ræder M, Dahlqvist P, Dahl SR, Thorsby PM, Løvås K, Husebye ES (2018)
The Short Cosyntropin Test Revisited: New Normal Reference Range Using LC-MS/MS
J Clin Endocrinol Metab, 103 (4), 1696-1703
DOI 10.1210/jc.2017-02602, PubMed 29452421

Øystese KAB, Berg JP, Normann KR, Zucknick M, Casar-Borota O, Bollerslev J (2018)
The role of E and N-cadherin in the postoperative course of gonadotroph pituitary tumours
Endocrine, 62 (2), 351-360
DOI 10.1007/s12020-018-1679-0, PubMed 30051197

Aass HCD, Hellum M, Trøseid AS, Brandtzaeg P, Berg JP, Øvstebø R, Henriksson CE (2018)
Whole-blood incubation with the Neisseria meningitidis lpxL1 mutant induces less pro-inflammatory cytokines than the wild type, and IL-10 reduces the MyD88-dependent cytokines
Innate Immun, 24 (2), 101-111
DOI 10.1177/1753425917749299, PubMed 29313733

Publications 2017

Berents TL, Carlsen KCL, Mowinckel P, Skjerven HO, Rolfsjord LB, Nordhagen LS, Kvenshagen B, Hunderi JOG, Bradley M, Thorsby PM, Carlsen KH, Gjersvik P (2017)
Weight-for-length, early weight-gain velocity and atopic dermatitis in infancy and at two years of age: a cohort study
BMC Pediatr, 17 (1), 141
DOI 10.1186/s12887-017-0889-6, PubMed 28592289

Brusletto BS, Hellerud BC, Løberg EM, Goverud IL, Vege Å, Berg JP, Brandtzaeg P, Øvstebø R (2017)
Traceability and distribution of Neisseria meningitidis DNA in archived post mortem tissue samples from patients with systemic meningococcal disease
BMC Clin Pathol, 17, 10
DOI 10.1186/s12907-017-0049-9, PubMed 28824331

Gopinathan U, Øvstebø R, Brusletto BS, Olstad OK, Kierulf P, Brandtzaeg P, Berg JP (2017)
Transcriptomic data from two primary cell models stimulating human monocytes suggest inhibition of oxidative phosphorylation and mitochondrial function by N. meningitidis which is partially up-regulated by IL-10
BMC Immunol, 18 (1), 46
DOI 10.1186/s12865-017-0229-5, PubMed 29078758

Klingenberg O, Furuset T, Hestbråten CR, Hallberg MH, Steiro A, Orset IR, Berg JP (2017)
HbA1c analysis by capillary electrophoresis - comparison with chromatography and an immunological method
Scand J Clin Lab Invest, 77 (6), 458-464
DOI 10.1080/00365513.2017.1338747, PubMed 28644050

Krog AH, Thorsby PM, Sahba M, Pettersen EM, Sandven I, Jørgensen JJ, Sundhagen JO, Kazmi SS (2017)
Perioperative humoral stress response to laparoscopic versus open aortobifemoral bypass surgery
Scand J Clin Lab Invest, 77 (2), 83-92
DOI 10.1080/00365513.2016.1268264, PubMed 28067075

Mårild K, Tapia G, Haugen M, Dahl SR, Cohen AS, Lundqvist M, Lie BA, Stene LC, Størdal K (2017)
Maternal and neonatal vitamin D status, genotype and childhood celiac disease
PLoS One, 12 (7), e0179080
DOI 10.1371/journal.pone.0179080, PubMed 28686601

Nerhus M, Berg AO, Simonsen C, Haram M, Haatveit B, Dahl SR, Gurholt TP, Bjella TD, Ueland T, Andreassen OA, Melle I (2017)
Vitamin D Deficiency Associated With Cognitive Functioning in Psychotic Disorders
J Clin Psychiatry, 78 (7), e750-e757
DOI 10.4088/JCP.16m10880, PubMed 28493652

Norvik JV, Schirmer H, Ytrehus K, Jenssen TG, Zykova SN, Eggen AE, Eriksen BO, Solbu MD (2017)
Low adiponectin is associated with diastolic dysfunction in women: a cross-sectional study from the Tromsø Study
BMC Cardiovasc Disord, 17 (1), 79
DOI 10.1186/s12872-017-0509-2, PubMed 28292262

Risstad H, Kristinsson JA, Fagerland MW, le Roux CW, Birkeland KI, Gulseth HL, Thorsby PM, Vincent RP, Engström M, Olbers T, Mala T (2017)
Bile acid profiles over 5 years after gastric bypass and duodenal switch: results from a randomized clinical trial
Surg Obes Relat Dis, 13 (9), 1544-1553
DOI 10.1016/j.soard.2017.05.024, PubMed 28756050

Sørensen IM, Joner G, Jenum PA, Eskild A, Dahl SR, Stene LC (2017)
Maternal serum calcitriol during pregnancy and risk of childhood onset type 1 diabetes
Acta Diabetol, 54 (12), 1143-1145
DOI 10.1007/s00592-017-1045-3, PubMed 28875306

Viste R, Soosai J, Vikin T, Thorsby PM, Nilsen KB, Knudsen S (2017)
Long-term improvement after combined immunomodulation in early post-H1N1 vaccination narcolepsy
Neurol Neuroimmunol Neuroinflamm, 4 (5), e389
DOI 10.1212/NXI.0000000000000389, PubMed 28840177

Vistnes M, Tapia G, Mårild K, Midttun Ø, Ueland PM, Viken MK, Magnus P, Berg JP, Gillespie KM, Skrivarhaug T, Njølstad PR, Joner G, Størdal K, Stene LC (2017)
Plasma immunological markers in pregnancy and cord blood: A possible link between macrophage chemo-attractants and risk of childhood type 1 diabetes
Am J Reprod Immunol, 79 (3)
DOI 10.1111/aji.12802, PubMed 29266506

Øystese KA, Casar-Borota O, Normann KR, Zucknick M, Berg JP, Bollerslev J (2017)
Estrogen Receptor α, a Sex-Dependent Predictor of Aggressiveness in Nonfunctioning Pituitary Adenomas: SSTR and Sex Hormone Receptor Distribution in NFPA
J Clin Endocrinol Metab, 102 (9), 3581-3590
DOI 10.1210/jc.2017-00792, PubMed 28911153

Aass C, Norheim I, Eriksen EF, Børnick EC, Thorsby PM, Pepaj M (2017)
Establishment of a tear protein biomarker panel differentiating between Graves' disease with or without orbitopathy
PLoS One, 12 (4), e0175274
DOI 10.1371/journal.pone.0175274, PubMed 28419103

Publications 2016

Beitland S, Waldum-Grevbo BE, Nakstad ER, Berg JP, Trøseid AS, Brusletto BS, Brunborg C, Andersen GØ, Sunde K (2016)
Urine biomarkers give early prediction of acute kidney injury and outcome after out-of-hospital cardiac arrest
Crit Care, 20 (1), 314
DOI 10.1186/s13054-016-1503-2, PubMed 27716377

Berents TL, Lødrup Carlsen KC, Mowinckel P, Sandvik L, Skjerven HO, Rolfsjord LB, Kvenshagen B, Hunderi JO, Bradley M, Lieden A, Carlsen KH, Thorsby PM, Gjersvik P (2016)
Vitamin D levels and atopic eczema in infancy and early childhood in Norway: a cohort study
Br J Dermatol, 175 (1), 95-101
DOI 10.1111/bjd.14537, PubMed 26972308

Frigstad SO, Høivik M, Jahnsen J, Dahl SR, Cvancarova M, Grimstad T, Berset IP, Huppertz-Hauss G, Hovde Ø, Torp R, Bernklev T, Moum B, Jelsness-Jørgensen LP (2016)
Vitamin D deficiency in inflammatory bowel disease: prevalence and predictors in a Norwegian outpatient population
Scand J Gastroenterol, 52 (1), 100-106
DOI 10.1080/00365521.2016.1233577, PubMed 27603182

Hellum M, Trøseid AS, Berg JP, Brandtzaeg P, Øvstebø R, Henriksson CE (2016)
The Neisseria meningitidis lpxL1 mutant induces less tissue factor expression and activity in primary human monocytes and monocyte-derived microvesicles than the wild type meningococcus
Innate Immun, 23 (2), 196-205
DOI 10.1177/1753425916684201, PubMed 28024455

Hov KR, Berg JP, Frihagen F, Ræder J, Hall R, Wyller TB, Watne LO (2016)
Blood-Cerebrospinal Fluid Barrier Integrity in Delirium Determined by Q-Albumin
Dement Geriatr Cogn Disord, 41 (3-4), 192-8
DOI 10.1159/000443789, PubMed 27058253

Jørgenrud B, Stene LC, Tapia G, Bøås H, Pepaj M, Berg JP, Thorsby PM, Orešič M, Hyötyläinen T, Rønningen KS (2016)
Longitudinal plasma metabolic profiles, infant feeding, and islet autoimmunity in the MIDIA study
Pediatr Diabetes, 18 (2), 111-119
DOI 10.1111/pedi.12360, PubMed 26791677

Kristensen GB, Rustad P, Berg JP, Aakre KM (2016)
Analytical Bias Exceeding Desirable Quality Goal in 4 out of 5 Common Immunoassays: Results of a Native Single Serum Sample External Quality Assessment Program for Cobalamin, Folate, Ferritin, Thyroid-Stimulating Hormone, and Free T4 Analyses
Clin Chem, 62 (9), 1255-63
DOI 10.1373/clinchem.2016.258962, PubMed 27384539

Krog AH, Sahba M, Pettersen EM, Sandven I, Thorsby PM, Jørgensen JJ, Sundhagen JO, Kazmi SS (2016)
Comparison of the acute-phase response after laparoscopic versus open aortobifemoral bypass surgery: a substudy of a randomized controlled trial
Vasc Health Risk Manag, 12, 371-378
DOI 10.2147/VHRM.S110600, PubMed 27713633

Methi T, Thorsby PM (2016)
Insulin resistance - the body's defence against caloric intoxication?
Tidsskr Nor Laegeforen, 136 (11), 1015-7
DOI 10.4045/tidsskr.16.0259, PubMed 27325036

Methi T, Thorsby PM (2016)
[Not Available]
Tidsskr Nor Laegeforen, 136 (14-15), 1186
DOI 10.4045/tidsskr.16.0582, PubMed 27554546

Mårild K, Vistnes M, Tapia G, Midttun Ø, Ueland PM, Viken MK, Magnus P, Berg JP, Stene LC, Størdal K (2016)
Midpregnancy and cord blood immunologic biomarkers, HLA genotype, and pediatric celiac disease
J Allergy Clin Immunol, 139 (5), 1696-1698
DOI 10.1016/j.jaci.2016.10.016, PubMed 27865861

Nerhus M, Berg AO, Kvitland LR, Dieset I, Hope S, Dahl SR, Weibell MA, Romm KL, Faerden A, Andreassen OA, Melle I (2016)
Low vitamin D is associated with negative and depressive symptoms in psychotic disorders
Schizophr Res, 178 (1-3), 44-49
DOI 10.1016/j.schres.2016.08.024, PubMed 27595553

Normann KR, Øystese KAB, Berg JP, Lekva T, Berg-Johnsen J, Bollerslev J, Olarescu NC (2016)
Selection and validation of reliable reference genes for RT-qPCR analysis in a large cohort of pituitary adenomas
Mol Cell Endocrinol, 437, 183-189
DOI 10.1016/j.mce.2016.08.030, PubMed 27561203

Norvik JV, Storhaug HM, Ytrehus K, Jenssen TG, Zykova SN, Eriksen BO, Solbu MD (2016)
Overweight modifies the longitudinal association between uric acid and some components of the metabolic syndrome: The Tromsø Study
BMC Cardiovasc Disord, 16, 85
DOI 10.1186/s12872-016-0265-8, PubMed 27165776

Olsen HG, Knutsen TM, Lewandowska-Sabat AM, Grove H, Nome T, Svendsen M, Arnyasi M, Sodeland M, Sundsaasen KK, Dahl SR, Heringstad B, Hansen HH, Olsaker I, Kent MP, Lien S (2016)
Fine mapping of a QTL on bovine chromosome 6 using imputed full sequence data suggests a key role for the group-specific component (GC) gene in clinical mastitis and milk production
Genet Sel Evol, 48 (1), 79
DOI 10.1186/s12711-016-0257-2, PubMed 27760518

Pepaj M, Bredahl MK, Gjerlaugsen N, Thorsby PM (2016)
Proteomic analysis of the INS-1E secretome identify novel vitamin D-regulated proteins
Diabetes Metab Res Rev, 32 (6), 514-21
DOI 10.1002/dmrr.2777, PubMed 26788927

Sachse D, Solevåg AL, Berg JP, Nakstad B (2016)
The Role of Plasma and Urine Metabolomics in Identifying New Biomarkers in Severe Newborn Asphyxia: A Study of Asphyxiated Newborn Pigs following Cardiopulmonary Resuscitation
PLoS One, 11 (8), e0161123
DOI 10.1371/journal.pone.0161123, PubMed 27529347

Solbu MD, Norvik JV, Storhaug HM, Eriksen BO, Melsom T, Eggen AE, Zykova SN, Kronborg JB, Jenssen TG (2016)
The Association Between Adiponectin, Serum Uric Acid and Urinary Markers of Renal Damage in the General Population: Cross-Sectional Data from the Tromsø Study
Kidney Blood Press Res, 41 (5), 623-634
DOI 10.1159/000447931, PubMed 27622764

Sollid ST, Hutchinson MY, Berg V, Fuskevåg OM, Figenschau Y, Thorsby PM, Jorde R (2016)
Effects of vitamin D binding protein phenotypes and vitamin D supplementation on serum total 25(OH)D and directly measured free 25(OH)D
Eur J Endocrinol, 174 (4), 445-52
DOI 10.1530/EJE-15-1089, PubMed 26733479

Sommer C, Gulseth HL, Jenum AK, Sletner L, Thorsby PM, Birkeland KI (2016)
Soluble Leptin Receptor and Risk of Gestational Diabetes in a Multiethnic Population: A Prospective Cohort Study
J Clin Endocrinol Metab, 101 (11), 4070-4075
DOI 10.1210/jc.2016-2583, PubMed 27537771

Waage C, Jenum AK, Mdala I, Berg JP, Richardsen K, Birkeland K (2016)
Associations between gestational diabetes mellitus and elevated HbA_1c early postpartum in a multi-ethnic population
Prim Care Diabetes, 11 (2), 132-139
DOI 10.1016/j.pcd.2016.09.007, PubMed 27771271

Aass C, Norheim I, Eriksen EF, Børnick EC, Thorsby PM, Pepaj M (2016)
Comparative proteomic analysis of tear fluid in Graves' disease with and without orbitopathy
Clin Endocrinol (Oxf), 85 (5), 805-812
DOI 10.1111/cen.13122, PubMed 27256639

Publications 2015

Kringen MK, Stormo C, Berg JP, Terry SF, Vocke CM, Rizvi S, Hendig D, Piehler AP (2015)
Copy number variation in the ATP-binding cassette transporter ABCC6 gene and ABCC6 pseudogenes in patients with pseudoxanthoma elasticum
Mol Genet Genomic Med, 3 (3), 233-7
DOI 10.1002/mgg3.137, PubMed 26029710

Lekva T, Berg JP, Lyle R, Heck A, Bollerslev J, Ueland T (2015)
Alternative splicing of placental lactogen (CSH2) in somatotroph pituitary adenomas
Neuro Endocrinol Lett, 36 (2), 136-42
PubMed 26071582

Nerhus M, Berg AO, Dahl SR, Holvik K, Gardsjord ES, Weibell MA, Bjella TD, Andreassen OA, Melle I (2015)
Vitamin D status in psychotic disorder patients and healthy controls--The influence of ethnic background
Psychiatry Res, 230 (2), 616-21
DOI 10.1016/j.psychres.2015.10.015, PubMed 26500071

Pepaj M, Bredahl MK, Gjerlaugsen N, Bornstedt ME, Thorsby PM (2015)
Discovery of novel vitamin D-regulated proteins in INS-1 cells: a proteomic approach
Diabetes Metab Res Rev, 31 (5), 481-91
DOI 10.1002/dmrr.2629, PubMed 25449168

Pepaj M, Thorsby PM (2015)
Analysis of Glycated Albumin by On-Line Two-Dimensional Liquid Chromatography Mass Spectrometry
J. Liq. Chromatogr. Relat. Technol., 38 (1), 20-28
DOI 10.1080/10826076.2013.864980

Reppe S, Noer A, Grimholt RM, Halldórsson BV, Medina-Gomez C, Gautvik VT, Olstad OK, Berg JP, Datta H, Estrada K, Hofman A, Uitterlinden AG, Rivadeneira F, Lyle R, Collas P, Gautvik KM (2015)
Methylation of bone SOST, its mRNA, and serum sclerostin levels correlate strongly with fracture risk in postmenopausal women
J Bone Miner Res, 30 (2), 249-56
DOI 10.1002/jbmr.2342, PubMed 25155887

Rizvi SM, Veierød MB, Thorsby PM, Helsing P (2015)
Vitamin D in Norwegian renal transplant recipients: A longitudinal study with repeated measurements in winter and summer
Eur J Dermatol, 25 (3), 234-9
DOI 10.1684/ejd.2015.2524, PubMed 26412038

Sørgjerd EP, Thorsby PM, Torjesen PA, Skorpen F, Kvaløy K, Grill V (2015)
Presence of anti-GAD in a non-diabetic population of adults; time dynamics and clinical influence: results from the HUNT study
BMJ Open Diabetes Res Care, 3 (1), e000076
DOI 10.1136/bmjdrc-2014-000076, PubMed 26157582

Zykova SN, Storhaug HM, Toft I, Chadban SJ, Jenssen TG, White SL (2015)
Cross-sectional analysis of nutrition and serum uric acid in two Caucasian cohorts: the AusDiab Study and the Tromsø study
Nutr J, 14, 49
DOI 10.1186/s12937-015-0032-1, PubMed 25971955

Aass C, Norheim I, Eriksen EF, Thorsby PM, Pepaj M (2015)
Single unit filter-aided method for fast proteomic analysis of tear fluid
Anal Biochem, 480, 1-5
DOI 10.1016/j.ab.2015.04.002, PubMed 25862084

Publications 2014

Dahl SR, Thorsby PM (2014)
[How to measure vitamin D status?]
Tidsskr Nor Laegeforen, 134 (7), 729-31
DOI 10.4045/tidsskr.13.0981, PubMed 24721864

Gopinathan U, Brusletto BS, Olstad OK, Kierulf P, Berg JP, Brandtzaeg P, Øvstebø R (2014)
IL-10 immunodepletion from meningococcal sepsis plasma induces extensive changes in gene expression and cytokine release in stimulated human monocytes
Innate Immun, 21 (4), 429-49
DOI 10.1177/1753425914547743, PubMed 25233959

Landrø NI, Jonassen R, Clark L, Haug KB, Aker M, Bø R, Berg JP, Neumeister A, Stiles TC (2014)
Serotonin transporter polymorphisms predict response inhibition in healthy volunteers
Neurosci Lett, 584, 109-12
DOI 10.1016/j.neulet.2014.10.006, PubMed 25451724

Methi T, Thorsby PM (2014)
Why doesn't everyone develop type 2 diabetes?
Tidsskr Nor Laegeforen, 134 (23-24), 2284-7
DOI 10.4045/tidsskr.14.0941, PubMed 25492339

Moltu SJ, Sachse D, Blakstad EW, Strømmen K, Nakstad B, Almaas AN, Westerberg AC, Rønnestad A, Brække K, Veierød MB, Iversen PO, Rise F, Berg JP, Drevon CA (2014)
Urinary metabolite profiles in premature infants show early postnatal metabolic adaptation and maturation
Nutrients, 6 (5), 1913-30
DOI 10.3390/nu6051913, PubMed 24824288

Pepaj M, Gjerlaugsen N, Julien K, Thorsby PM (2014)
Tmem27 is upregulated by vitamin D in INS-1 cells and its serum concentrations are low in patients with autoimmune diabetes
Scand J Clin Lab Invest, 74 (4), 358-65
DOI 10.3109/00365513.2014.898322, PubMed 24693993

Sachse D, Bærug A, Sletner L, Birkeland KI, Nakstad B, Jenum AK, Berg JP (2014)
Urine NMR metabolomics analysis of breastfeeding biomarkers during and after pregnancy in a large prospective cohort study
Scand J Clin Lab Invest, 74 (3), 264-72
DOI 10.3109/00365513.2014.884240, PubMed 24621206

Steen NE, Methlie P, Lorentzen S, Dieset I, Aas M, Nerhus M, Haram M, Agartz I, Melle I, Berg JP, Andreassen OA (2014)
Altered systemic cortisol metabolism in bipolar disorder and schizophrenia spectrum disorders
J Psychiatr Res, 52, 57-62
DOI 10.1016/j.jpsychires.2014.01.017, PubMed 24534618

Stormo C, Kringen MK, Lyle R, Olstad OK, Sachse D, Berg JP, Piehler AP (2014)
RNA-sequencing analysis of HepG2 cells treated with atorvastatin
PLoS One, 9 (8), e105836
DOI 10.1371/journal.pone.0105836, PubMed 25153832

Vikøren TB, Berg JP, Berg TJ (2014)
[Sources of error when using haemoglobin A1c]
Tidsskr Nor Laegeforen, 134 (4), 417-21
DOI 10.4045/tidsskr.13.0938, PubMed 24569741

Publications 2013

Cogger VC, Svistounov D, Warren A, Zykova S, Melvin RG, Solon-Biet SM, O'Reilly JN, McMahon AC, Ballard JW, De Cabo R, Le Couteur DG, Lebel M (2013)
Liver aging and pseudocapillarization in a Werner syndrome mouse model
J Gerontol A Biol Sci Med Sci, 69 (9), 1076-86
DOI 10.1093/gerona/glt169, PubMed 24149428

Evang JA, Bollerslev J, Casar-Borota O, Lekva T, Ramm-Pettersen J, Berg JP (2013)
Different levels of various glucocorticoid-regulated genes in corticotroph adenomas
Endocrine, 44 (1), 220-7
DOI 10.1007/s12020-012-9871-0, PubMed 23315031

Hellum M, Øvstebø R, Brusletto BS, Berg JP, Brandtzaeg P, Henriksson CE (2013)
Microparticle-associated tissue factor activity correlates with plasma levels of bacterial lipopolysaccharides in meningococcal septic shock
Thromb Res, 133 (3), 507-14
DOI 10.1016/j.thromres.2013.12.031, PubMed 24423888

Lekva T, Berg JP, Heck A, Lyngvi Fougner S, Olstad OK, Ringstad G, Bollerslev J, Ueland T (2013)
Attenuated RORC expression in the presence of EMT progression in somatotroph adenomas following treatment with somatostatin analogs is associated with poor clinical recovery
PLoS One, 8 (6), e66927
DOI 10.1371/journal.pone.0066927, PubMed 23825587

Lekva T, Berg JP, Lyle R, Heck A, Ringstad G, Olstad OK, Michelsen AE, Casar-Borota O, Bollerslev J, Ueland T (2013)
Epithelial splicing regulator protein 1 and alternative splicing in somatotroph adenomas
Endocrinology, 154 (9), 3331-43
DOI 10.1210/en.2013-1051, PubMed 23825128

Pettersen I, Baryawno N, Abel F, Bakkelund WH, Zykova SN, Winberg JO, Moens U, Rasmuson A, Kogner P, Johnsen JI, Sveinbjörnsson B (2013)
Expression of TWEAK/Fn14 in neuroblastoma: implications in tumorigenesis
Int J Oncol, 42 (4), 1239-48
DOI 10.3892/ijo.2013.1800, PubMed 23443741

Sakhi AK, Berg JP, Berg TJ (2013)
Glyoxalase 1 enzyme activity in erythrocytes and Ala111Glu polymorphism in type 1-diabetes patients
Scand J Clin Lab Invest, 73 (2), 175-81
DOI 10.3109/00365513.2013.765028, PubMed 23360186

Storhaug HM, Norvik JV, Toft I, Eriksen BO, Løchen ML, Zykova S, Solbu M, White S, Chadban S, Jenssen T (2013)
Uric acid is a risk factor for ischemic stroke and all-cause mortality in the general population: a gender specific analysis from The Tromsø Study
BMC Cardiovasc Disord, 13, 115
DOI 10.1186/1471-2261-13-115, PubMed 24330812

Svistounov D, Oteiza A, Zykova SN, Sørensen KK, McCourt P, McLachlan AJ, McCuskey RS, Smedsrød B (2013)
Hepatic disposal of advanced glycation end products during maturation and aging
Exp Gerontol, 48 (6), 549-56
DOI 10.1016/j.exger.2013.03.005, PubMed 23531498

Wium C, Aasheim ET, Ueland T, Michelsen AE, Thorsby PM, Larsen IF, Torjesen PA, Aukrust P, Birkeland KI (2013)
Differences in insulin sensitivity, lipid metabolism and inflammation between young adult Pakistani and Norwegian patients with type 2 diabetes: a cross sectional study
BMC Endocr Disord, 13, 49
DOI 10.1186/1472-6823-13-49, PubMed 24148878

Zykova SN, Balandina KA, Vorokhobina NV, Kuznetsova AV, Engstad R, Zykova TA (2013)
Macrophage stimulating agent soluble yeast β-1,3/1,6-glucan as a topical treatment of diabetic foot and leg ulcers: A randomized, double blind, placebo-controlled phase II study
J Diabetes Investig, 5 (4), 392-9
DOI 10.1111/jdi.12165, PubMed 25411598

Publications 2012

Berg JP (2012)
Statement of retraction. Biomarkers of alcoholism: an updated review
Scand J Clin Lab Invest, 72 (4), 343
DOI 10.3109/00365513.2012.686788, PubMed 22724629

Fougner SL, Casar-Borota O, Heck A, Berg JP, Bollerslev J (2012)
Adenoma granulation pattern correlates with clinical variables and effect of somatostatin analogue treatment in a large series of patients with acromegaly
Clin Endocrinol (Oxf), 76 (1), 96-102
DOI 10.1111/j.1365-2265.2011.04163.x, PubMed 21722151

Gopinathan U, Ovstebø R, Olstad OK, Brusletto B, Dalsbotten Aass HC, Kierulf P, Brandtzaeg P, Berg JP (2012)
Global effect of interleukin-10 on the transcriptional profile induced by Neisseria meningitidis in human monocytes
Infect Immun, 80 (11), 4046-54
DOI 10.1128/IAI.00386-12, PubMed 22966040

Hellum M, Øvstebø R, Trøseid AM, Berg JP, Brandtzaeg P, Henriksson CE (2012)
Microparticle-associated tissue factor activity measured with the Zymuphen MP-TF kit and the calibrated automated thrombogram assay
Blood Coagul Fibrinolysis, 23 (6), 520-6
DOI 10.1097/MBC.0b013e328354a256, PubMed 22732249

Huse K, Bakkebø M, Wälchli S, Oksvold MP, Hilden VI, Forfang L, Bredahl ML, Liestøl K, Alizadeh AA, Smeland EB, Myklebust JH (2012)
Role of Smad proteins in resistance to BMP-induced growth inhibition in B-cell lymphoma
PLoS One, 7 (10), e46117
DOI 10.1371/journal.pone.0046117, PubMed 23049692

Jonassen R, Endestad T, Neumeister A, Foss Haug KB, Berg JP, Landrø NI (2012)
Serotonin transporter polymorphism modulates N-back task performance and fMRI BOLD signal intensity in healthy women
PLoS One, 7 (1), e30564
DOI 10.1371/journal.pone.0030564, PubMed 22291990

Jonassen R, Endestad T, Neumeister A, Foss Haug KB, Berg JP, Landrø NI (2012)
The effects of the serotonin transporter polymorphism and age on frontal white matter integrity in healthy adult women
Front Hum Neurosci, 6, 19
DOI 10.3389/fnhum.2012.00019, PubMed 22347858

Jorde R, Schirmer H, Wilsgaard T, Joakimsen RM, Mathiesen EB, Njølstad I, Løchen ML, Figenschau Y, Berg JP, Svartberg J, Grimnes G (2012)
Polymorphisms related to the serum 25-hydroxyvitamin D level and risk of myocardial infarction, diabetes, cancer and mortality. The Tromsø Study
PLoS One, 7 (5), e37295
DOI 10.1371/journal.pone.0037295, PubMed 22649517

Kringen MK, Stormo C, Grimholt RM, Berg JP, Piehler AP (2012)
Copy number variations of the ATP-binding cassette transporter ABCC6 gene and its pseudogenes
BMC Res Notes, 5, 425
DOI 10.1186/1756-0500-5-425, PubMed 22873774

Lekva T, Berg JP, Fougner SL, Olstad OK, Ueland T, Bollerslev J (2012)
Gene expression profiling identifies ESRP1 as a potential regulator of epithelial mesenchymal transition in somatotroph adenomas from a large cohort of patients with acromegaly
J Clin Endocrinol Metab, 97 (8), E1506-14
DOI 10.1210/jc.2012-1760, PubMed 22585092

Moltu SJ, Strømmen K, Blakstad EW, Almaas AN, Westerberg AC, Brække K, Rønnestad A, Nakstad B, Berg JP, Veierød MB, Haaland K, Iversen PO, Drevon CA (2012)
Enhanced feeding in very-low-birth-weight infants may cause electrolyte disturbances and septicemia--a randomized, controlled trial
Clin Nutr, 32 (2), 207-12
DOI 10.1016/j.clnu.2012.09.004, PubMed 23043722

Reppe S, Sachse D, Olstad OK, Gautvik VT, Sanderson P, Datta HK, Berg JP, Gautvik KM (2012)
Identification of transcriptional macromolecular associations in human bone using browser based in silico analysis in a giant correlation matrix
Bone, 53 (1), 69-78
DOI 10.1016/j.bone.2012.11.015, PubMed 23195995

Rifai N, Annesley TM, Berg JP, Brugnara C, Delvin E, Lamb EJ, Ness PM, Plebani M, Wick MR, Wu A (2012)
An appeal to medical journal editors: the need for a full description of laboratory methods and specimen handling in clinical study reports
Transfusion, 52 (6), e17-9
DOI 10.1111/j.1537-2995.2012.03620.x, PubMed 22452379

Rifai N, Annesley TM, Berg JP, Brugnara C, Delvin E, Lamb EJ, Ness PM, Plebani M, Wick MR, Wu A, Delanghe J (2012)
An appeal to medical journal editors: the need for a full description of laboratory methods and specimen handling in clinical study reports
Clin Chim Acta, 413 (7-8), 653-5
DOI 10.1016/j.cca.2012.01.009, PubMed 22261017

Rifai N, Annesley TM, Berg JP, Brugnara C, Delvin E, Lamb EJ, Ness PM, Plebani M, Wick MR, Wu A, Delanghe J (2012)
An appeal to medical journal editors: the need for a full description of laboratory methods and specimen handling in clinical study reports. Statement by the Consortium of Laboratory Medicine Journal Editors
Ann Clin Biochem, 49 (Pt 2), 105-7
DOI 10.1258/acb.2011.201201, PubMed 22296778

Rifai N, Annesley TM, Berg JP, Brugnara C, Delvin E, Lamb EJ, Ness PM, Plebani M, Wick MR, Wu A, Delanghe J (2012)
An appeal to medical journal editors: the need for a full description of laboratory methods and specimen handling in clinical study reports
Clin Chem, 58 (3), 483-5
DOI 10.1373/clinchem.2011.178426, PubMed 22302921

Rifai N, Annesley TM, Berg JP, Brugnara C, Delvin E, Lamb EJ, Ness PM, Plebani M, Wick MR, Wu A, Delanghe J (2012)
An appeal to medical journal editors: the need for a full description of laboratory methods and specimen handling in clinical study reports
Scand J Clin Lab Invest, 72 (2), 89-91
DOI 10.3109/00365513.2011.654052, PubMed 22339367

Rifai N, Annesley TM, Berg JP, Brugnara C, Delvin E, Lamb EJ, Ness PM, Plebani M, Wick MR, Wu A, Delanghe J (2012)
An appeal to medical journal editors: the need for a full description of laboratory methods and specimen handling in clinical study reports
Am J Hematol, 87 (4), 347-8
DOI 10.1002/ajh.23121, PubMed 22410758

Rifai N, Annesley TM, Berg JP, Brugnara C, Delvin E, Lamb EJ, Ness PM, Plebani M, Wick MR, Wu A, Delanghe J (2012)
An appeal to medical journal editors: the need for a full description of laboratory methods and specimen handling in clinical study reports
Clin Chem Lab Med, 50 (3), 411-3
DOI 10.1515/cclm-2011-0904, PubMed 22505546

Rifai N, Annesley TM, Berg JP, Brugnara C, Delvin E, Lamb EJ, Ness PM, Plebani M, Wick MR, Wu A, Joris Delanghe (2012)
An appeal to medical journal editors: the need for a full description of laboratory methods and specimen handling in clinical study reports
Clin Biochem, 45 (3), 185-6
DOI 10.1016/j.clinbiochem.2011.12.011, PubMed 22297270

Sachse D, Sletner L, Mørkrid K, Jenum AK, Birkeland KI, Rise F, Piehler AP, Berg JP (2012)
Metabolic changes in urine during and after pregnancy in a large, multiethnic population-based cohort study of gestational diabetes
PLoS One, 7 (12), e52399
DOI 10.1371/journal.pone.0052399, PubMed 23285025

Stormo C, Kringen MK, Grimholt RM, Berg JP, Piehler AP (2012)
A novel 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR) splice variant with an alternative exon 1 potentially encoding an extended N-terminus
BMC Mol Biol, 13, 29
DOI 10.1186/1471-2199-13-29, PubMed 22989091

Svistounov D, Warren A, McNerney GP, Owen DM, Zencak D, Zykova SN, Crane H, Huser T, Quinn RJ, Smedsrød B, Le Couteur DG, Cogger VC (2012)
The Relationship between fenestrations, sieve plates and rafts in liver sinusoidal endothelial cells
PLoS One, 7 (9), e46134
DOI 10.1371/journal.pone.0046134, PubMed 23029409

Publications 2011

Berg JP (2011)
Hemoglobin A1c – anvendelse og analysekvalitet
Bioingeniøren, 46 (2), 16-19
PublikaID 128

Berg JP, Hanssen KF, Bjerve KS, Claudi T, Dahl-Jørgensen K, Rustad P, Sandberg S, Skrivarhaug T (2011)
[Standardized hemoglobin A1C for diagnostic use?]
Tidsskr Nor Laegeforen, 131 (6), 565-6
DOI 10.4045/tidsskr.10.1160, PubMed 21423304

Dahl SR, Olsen KM, Strand DH (2011)
Determination of γ-hydroxybutyrate (GHB), β-hydroxybutyrate (BHB), pregabalin, 1,4-butane-diol (1,4BD) and γ-butyrolactone (GBL) in whole blood and urine samples by UPLC-MSMS
J Chromatogr B Analyt Technol Biomed Life Sci, 885-886, 37-42
DOI 10.1016/j.jchromb.2011.12.009, PubMed 22226469

Evang JA, Berg JP, Casar-Borota O, Lekva T, Kringen MK, Ramm-Pettersen J, Bollerslev J (2011)
Reduced levels of E-cadherin correlate with progression of corticotroph pituitary tumours
Clin Endocrinol (Oxf), 75 (6), 811-8
DOI 10.1111/j.1365-2265.2011.04109.x, PubMed 21595730

Hamre H, Kiserud CE, Ruud E, Thorsby PM, Fosså SD (2011)
Gonadal function and parenthood 20 years after treatment for childhood lymphoma: a cross-sectional study
Pediatr Blood Cancer, 59 (2), 271-7
DOI 10.1002/pbc.23363, PubMed 22021108

Johansson H, Odén A, Kanis J, McCloskey E, Lorentzon M, Ljunggren Ö, Karlsson MK, Thorsby PM, Tivesten Å, Barrett-Connor E, Ohlsson C, Mellström D (2011)
Low serum vitamin D is associated with increased mortality in elderly men: MrOS Sweden
Osteoporos Int, 23 (3), 991-9
DOI 10.1007/s00198-011-1809-5, PubMed 22008880

Lund T, Svindland A, Pepaj M, Jensen AB, Berg JP, Kilhovd B, Hanssen KF (2011)
Fibrin(ogen) may be an important target for methylglyoxal-derived AGE modification in elastic arteries of humans
Diab Vasc Dis Res, 8 (4), 284-94
DOI 10.1177/1479164111416831, PubMed 21844128

Rifai N, Plebani M, Wu A, Brugnara C, Delvin E, Lamb EJ, Ness PM, Wick MR, Berg JP (2011)
Full disclosure in industry-sponsored laboratory medicine research studies: statement by the Consortium of Laboratory Medicine Journal Editors
Ann Clin Biochem, 48 (Pt 1), 5-6
DOI 10.1258/acb.2010.010265, PubMed 21233327

Rifai N, Plebani M, Wu A, Brugnara C, Delvin E, Lamb EJ, Ness PM, Wick MR, Berg JP (2011)
Full-disclosure in industry-sponsored laboratory medicine research studies: Statement by the Consortium of Laboratory Medicine Journal Editors
Am J Hematol, 86 (3), 244
DOI 10.1002/ajh.21966, PubMed 21351119

Steen NE, Lorentzen S, Barrett EA, Lagerberg TV, Hope S, Larsson S, Berg AO, Agartz I, Melle I, Berg JP, Andreassen OA (2011)
Sex-specific cortisol levels in bipolar disorder and schizophrenia during mental challenge--relationship to clinical characteristics and medication
Prog Neuropsychopharmacol Biol Psychiatry, 35 (4), 1100-7
DOI 10.1016/j.pnpbp.2011.03.008, PubMed 21420462

Steen NE, Methlie P, Lorentzen S, Hope S, Barrett EA, Larsson S, Mork E, Almås B, Løvås K, Agartz I, Melle I, Berg JP, Andreassen OA (2011)
Increased systemic cortisol metabolism in patients with schizophrenia and bipolar disorder: a mechanism for increased stress vulnerability?
J Clin Psychiatry, 72 (11), 1515-21
DOI 10.4088/JCP.10m06068yel, PubMed 21367348

Øvstebø R, Aass HC, Haug KB, Trøseid AM, Gopinathan U, Kierulf P, Berg JP, Brandtzaeg P, Henriksson CE (2011)
LPS from Neisseria meningitidis is crucial for inducing monocyte- and microparticle-associated tissue factor activity but not for tissue factor expression
Innate Immun, 18 (4), 580-91
DOI 10.1177/1753425911428230, PubMed 22180561

Aass HC, Øvstebø R, Trøseid AM, Kierulf P, Berg JP, Henriksson CE (2011)
Fluorescent particles in the antibody solution result in false TF- and CD14-positive microparticles in flow cytometric analysis
Cytometry A, 79 (12), 990-9
DOI 10.1002/cyto.a.21147, PubMed 21990118

Publications 2010

Evang JA, Borota OC, Melum E, Holm R, Ramm-Pettersen J, Bollerslev J, Berg JP (2010)
HDAC2 expression and variable number of repeats in exon 1 of the HDAC2 gene in corticotroph adenomas
Clin Endocrinol (Oxf), 73 (2), 229-35
DOI 10.1111/j.1365-2265.2010.03805.x, PubMed 20346000

Fougner SL, Lekva T, Borota OC, Hald JK, Bollerslev J, Berg JP (2010)
The expression of E-cadherin in somatotroph pituitary adenomas is related to tumor size, invasiveness, and somatostatin analog response
J Clin Endocrinol Metab, 95 (5), 2334-42
DOI 10.1210/jc.2009-2197, PubMed 20335450

Henninge J, Pepaj M, Hullstein I, Hemmersbach P (2010)
Identification of CJC-1295, a growth-hormone-releasing peptide, in an unknown pharmaceutical preparation
Drug Test Anal, 2 (11-12), 647-50
DOI 10.1002/dta.233, PubMed 21204297

Kringen MK, Haug KB, Grimholt RM, Stormo C, Narum S, Opdal MS, Fosen JT, Piehler AP, Johansen PW, Seljeflot I, Berg JP, Brørs O (2010)
Genetic variation of VKORC1 and CYP4F2 genes related to warfarin maintenance dose in patients with myocardial infarction
J Biomed Biotechnol, 2011, 739751
DOI 10.1155/2011/739751, PubMed 21127708

Piehler AP, Grimholt RM, Ovstebø R, Berg JP (2010)
Gene expression results in lipopolysaccharide-stimulated monocytes depend significantly on the choice of reference genes
BMC Immunol, 11, 21
DOI 10.1186/1471-2172-11-21, PubMed 20441576

Rifai N, Plebani M, Wu A, Brugnara C, Delvin E, Lamb EJ, Ness PM, Wick MR, Berg JP (2010)
Full-disclosure in industry-sponsored laboratory medicine research studies: statement by the Consortium of Laboratory Medicine Journal Editors
Clin Chem Lab Med, 49 (1), 3-4
DOI 10.1515/CCLM.2011.026, PubMed 21155691

Rifai N, Plebani M, Wu A, Brugnara C, Delvin E, Lamb EJ, Ness PM, Wick MR, Berg JP (2010)
Full disclosure in industry-sponsored laboratory medicine research studies: statement by the Consortium of Laboratory Medicine Journal Editors
Clin Chem, 57 (3), 359-60
DOI 10.1373/clinchem.2010.160721, PubMed 21173108

Rifai N, Plebani M, Wu A, Brugnara C, Delvin E, Lamb EJ, Ness PM, Wick MR, Berg JP (2010)
Full-disclosure in industry-sponsored laboratory medicine research studies: statement by the Consortium of Laboratory Medicine Journal Editors
Scand J Clin Lab Invest, 71 (3), 177-8
DOI 10.3109/00365513.2010.550476, PubMed 21174565

Rifai N, Plebani M, Wu A, Brugnara C, Delvin E, Lamb EJ, Ness PM, Wick MR, Berg JP (2010)
Full disclosure in industry-sponsored laboratory medicine research studies: statement by the Consortium of Laboratory Medicine Journal Editors
Transfusion, 52 (6), e15-6
DOI 10.1111/j.1537-2995.2010.03014.x, PubMed 22686537

Rifai N, Plebani M, Wu AH, Brugnara C, Delvin E, Lamb EJ, Ness PM, Wick MR, Berg JP (2010)
Full disclosure in industry-sponsored laboratory medicine research studies: Statement by the Consortium of Laboratory Medicine Journal Editors
Clin Biochem, 44 (2-3), 149-50
DOI 10.1016/j.clinbiochem.2010.11.008, PubMed 21183162

Rifai N, Plebani M, Wu AH, Delanghe J, Brugnara C, Delvin E, Lamb EJ, Ness PM, Wick MR, Berg JP (2010)
Full-disclosure in industry-sponsored laboratory medicine research studies: statement by the Consortium of Laboratory Medicine Journal Editors
Clin Chim Acta, 412 (7-8), 491-2
DOI 10.1016/j.cca.2010.12.015, PubMed 21159312

Solaas K, Legry V, Retterstol K, Berg PR, Holven KB, Ferrières J, Amouyel P, Lien S, Romeo J, Valtueña J, Widhalm K, Ruiz JR, Dallongeville J, Tonstad S, Rootwelt H, Halvorsen B, Nenseter MS, Birkeland KI, Thorsby PM, Meirhaeghe A, Nebb HI (2010)
Suggestive evidence of associations between liver X receptor β polymorphisms with type 2 diabetes mellitus and obesity in three cohort studies: HUNT2 (Norway), MONICA (France) and HELENA (Europe)
BMC Med Genet, 11, 144
DOI 10.1186/1471-2350-11-144, PubMed 20939869

Steen NE, Tesli M, Kähler AK, Methlie P, Hope S, Barrett EA, Larsson S, Mork E, Løvås K, Røssberg JI, Agartz I, Melle I, Djurovic S, Lorentzen S, Berg JP, Andreassen OA (2010)
SRD5A2 is associated with increased cortisol metabolism in schizophrenia spectrum disorders
Prog Neuropsychopharmacol Biol Psychiatry, 34 (8), 1500-6
DOI 10.1016/j.pnpbp.2010.08.013, PubMed 20800085

Zykova SN, Tveita AA, Rekvig OP (2010)
Renal Dnase1 enzyme activity and protein expression is selectively shut down in murine and human membranoproliferative lupus nephritis
PLoS One, 5 (8)
DOI 10.1371/journal.pone.0012096, PubMed 20856893

Publications 2009

Bollerslev J, Fougner SL, Berg JP (2009)
New directions in pharmacological treatment of acromegaly
Expert Opin Investig Drugs, 18 (1), 13-22
DOI 10.1517/13543780802554357, PubMed 19053878

Bratland A, Boender PJ, Høifødt HK, Østensen IH, Ruijtenbeek R, Wang MY, Berg JP, Lilleby W, Fodstad Ø, Ree AH (2009)
Osteoblast-induced EGFR/ERBB2 signaling in androgen-sensitive prostate carcinoma cells characterized by multiplex kinase activity profiling
Clin Exp Metastasis, 26 (5), 485-96
DOI 10.1007/s10585-009-9248-9, PubMed 19294521

Dahl SR, Kleiveland CR, Kassem M, Lea T, Lundanes E, Greibrokk T (2009)
Determination of thromboxanes, leukotrienes and lipoxins using high-temperature capillary liquid chromatography-tandem mass spectrometry and on-line sample preparation
J Chromatogr A, 1216 (22), 4648-54
DOI 10.1016/j.chroma.2009.03.068, PubMed 19394027

Gammelsaeter R, Jenstad M, Bredahl MK, Gundersen V, Chaudhry FA (2009)
Complementary expression of SN1 and SAT2 in the islets of Langerhans suggests concerted action of glutamine transport in the regulation of insulin secretion
Biochem Biophys Res Commun, 381 (3), 378-82
DOI 10.1016/j.bbrc.2009.02.062, PubMed 19233140

Hetland RB, Alexander J, Berg JP, Svendsen C, Paulsen JE (2009)
Retinol-induced intestinal tumorigenesis in Min/+ mice and importance of vitamin D status
Anticancer Res, 29 (11), 4353-60
PubMed 20032378

Seredkina N, Zykova SN, Rekvig OP (2009)
Progression of murine lupus nephritis is linked to acquired renal Dnase1 deficiency and not to up-regulated apoptosis
Am J Pathol, 175 (1), 97-106
DOI 10.2353/ajpath.2009.080943, PubMed 19528352

Thorsby PM, Midthjell K, Gjerlaugsen N, Holmen J, Hanssen KF, Birkeland KI, Berg JP (2009)
Comparison of genetic risk in three candidate genes (TCF7L2, PPARG, KCNJ11) with traditional risk factors for type 2 diabetes in a population-based study--the HUNT study
Scand J Clin Lab Invest, 69 (2), 282-7
DOI 10.1080/00365510802538188, PubMed 18972257

Tretli S, Hernes E, Berg JP, Hestvik UE, Robsahm TE (2009)
Association between serum 25(OH)D and death from prostate cancer
Br J Cancer, 100 (3), 450-4
DOI 10.1038/sj.bjc.6604865, PubMed 19156140

Tveita AA, Ninomiya Y, Sado Y, Rekvig OP, Zykova SN (2009)
Development of lupus nephritis is associated with qualitative changes in the glomerular collagen IV matrix composition
Lupus, 18 (4), 355-60
DOI 10.1177/0961203308100842, PubMed 19276304

Aas AM, Hanssen KF, Berg JP, Thorsby PM, Birkeland KI (2009)
Insulin-stimulated increase in serum leptin levels precedes and correlates with weight gain during insulin therapy in type 2 diabetes
J Clin Endocrinol Metab, 94 (8), 2900-6
DOI 10.1210/jc.2008-1005, PubMed 19509109

Publications 2008

Asadi AB, Torjesen PA, Haug E, Berg JP (2008)
Biochemical characterization of four novel mutations in the thyroid hormone receptor beta gene in patients with resistance to thyroid hormone
Scand J Clin Lab Invest, 68 (7), 563-7
DOI 10.1080/00365510701884592, PubMed 19378427

Chaudhry FA, Boulland JL, Jenstad M, Bredahl MK, Edwards RH (2008)
Pharmacology of neurotransmitter transport into secretory vesicles
Handb Exp Pharmacol (184), 77-106
DOI 10.1007/978-3-540-74805-2_4, PubMed 18064412

Dahl SR, Kleiveland CR, Kassem M, Lea T, Lundanes E, Greibrokk T (2008)
Detecting pM concentrations of prostaglandins in cell culture supernatants by capillary SCX-LC-MS/MS
J Sep Sci, 31 (14), 2627-33
DOI 10.1002/jssc.200800184, PubMed 18618469

Erichsen MM, Løvås K, Fougner KJ, Svartberg J, Hauge ER, Bollerslev J, Berg JP, Mella B, Husebye ES (2008)
Normal overall mortality rate in Addison's disease, but young patients are at risk of premature death
Eur J Endocrinol, 160 (2), 233-7
DOI 10.1530/EJE-08-0550, PubMed 19011006

Fosmark DS, Berg JP, Jensen AB, Sandvik L, Agardh E, Agardh CD, Hanssen KF (2008)
Increased retinopathy occurrence in type 1 diabetes patients with increased serum levels of the advanced glycation endproduct hydroimidazolone
Acta Ophthalmol, 87 (5), 498-500
DOI 10.1111/j.1755-3768.2008.01300.x, PubMed 18631328

Fougner SL, Bollerslev J, Latif F, Hald JK, Lund T, Ramm-Pettersen J, Berg JP (2008)
Low levels of raf kinase inhibitory protein in growth hormone-secreting pituitary adenomas correlate with poor response to octreotide treatment
J Clin Endocrinol Metab, 93 (4), 1211-6
DOI 10.1210/jc.2007-2272, PubMed 18230656

Stene LC, Thorsby PM, Berg JP, Rønningen KS, Joner G, Norwegian Childhood Diabetes Study Group (2008)
Peroxisome proliferator-activated receptor-gamma2 Pro12Ala polymorphism, cod liver oil and risk of type 1 diabetes
Pediatr Diabetes, 9 (1), 40-5
DOI 10.1111/j.1399-5448.2007.00263.x, PubMed 18211635

Tveita A, Rekvig OP, Zykova SN (2008)
Glomerular matrix metalloproteinases and their regulators in the pathogenesis of lupus nephritis
Arthritis Res Ther, 10 (6), 229
DOI 10.1186/ar2532, PubMed 19090960

Tveita AA, Rekvig OP, Zykova SN (2008)
Increased glomerular matrix metalloproteinase activity in murine lupus nephritis
Kidney Int, 74 (9), 1150-8
DOI 10.1038/ki.2008.308, PubMed 18596727

Zykova SN, Seredkina N, Benjaminsen J, Rekvig OP (2008)
Reduced fragmentation of apoptotic chromatin is associated with nephritis in lupus-prone (NZB x NZW)F(1) mice
Arthritis Rheum, 58 (3), 813-25
DOI 10.1002/art.23276, PubMed 18311834

Publications 2007

Berdal M, Appelbom HI, Eikrem JH, Lund A, Zykova S, Busund LT, Seljelid R, Jenssen T (2007)
Aminated beta-1,3-D-glucan improves wound healing in diabetic db/db mice
Wound Repair Regen, 15 (6), 825-32
DOI 10.1111/j.1524-475X.2007.00286.x, PubMed 18028130

Fosmark DS, Bragadóttir R, Stene-Johansen I, Berg JP, Berg TJ, Lund T, Sandvik L, Hanssen KF (2007)
Increased vitreous levels of hydroimidazolone in type 2 diabetes patients are associated with retinopathy: a case-control study
Acta Ophthalmol Scand, 85 (6), 618-22
DOI 10.1111/j.1600-0420.2007.00913.x, PubMed 17488318

Fougner SL, Borota OC, Berg JP, Hald JK, Ramm-Pettersen J, Bollerslev J (2007)
The clinical response to somatostatin analogues in acromegaly correlates to the somatostatin receptor subtype 2a protein expression of the adenoma
Clin Endocrinol (Oxf), 68 (3), 458-65
DOI 10.1111/j.1365-2265.2007.03065.x, PubMed 17941904

Lagunova Z, Porojnicu AC, Dahlback A, Berg JP, Beer TM, Moan J (2007)
Prostate cancer survival is dependent on season of diagnosis
Prostate, 67 (12), 1362-70
DOI 10.1002/pros.20577, PubMed 17624920

Martin-Armas M, Zykova S, Smedsrød B (2007)
Effects of CpG-oligonucleotides, poly I:C and LPS on Atlantic cod scavenger endothelial cells (SEC)
Dev Comp Immunol, 32 (2), 100-7
DOI 10.1016/j.dci.2007.04.008, PubMed 17560649

Moan J, Porojnicu A, Lagunova Z, Berg JP, Dahlback A (2007)
Colon cancer: prognosis for different latitudes, age groups and seasons in Norway
J Photochem Photobiol B, 89 (2-3), 148-55
DOI 10.1016/j.jphotobiol.2007.09.003, PubMed 18029190

Pepaj M, Lundanes E, Greibrokk T (2007)
Separation of apolipoprotein A-I from human plasma by on-line two dimensional liquid chromatography
J. Liq. Chromatogr. Relat. Technol., 30 (13-16), 1879-1894
DOI 10.1080/10826070701386439

Porojnicu A, Robsahm TE, Berg JP, Moan J (2007)
Season of diagnosis is a predictor of cancer survival. Sun-induced vitamin D may be involved: a possible role of sun-induced Vitamin D
J Steroid Biochem Mol Biol, 103 (3-5), 675-8
DOI 10.1016/j.jsbmb.2006.12.031, PubMed 17229569

Porojnicu AC, Robsahm TE, Dahlback A, Berg JP, Christiani D, Bruland OS, Moan J (2007)
Seasonal and geographical variations in lung cancer prognosis in Norway. Does Vitamin D from the sun play a role?
Lung Cancer, 55 (3), 263-70
DOI 10.1016/j.lungcan.2006.11.013, PubMed 17207891

Zykova SN, Seredkina NE, Rekvig OP (2007)
Glomerular targets for autoantibodies in lupus nephritis--an apoptotic origin
Ann N Y Acad Sci, 1108, 1-10
DOI 10.1196/annals.1422.001, PubMed 17893965

Publications 2006

Gütgemann I, Haas S, Berg JP, Zhou H, Büttner R, Fischer HP (2006)
CD56 expression aids in the differential diagnosis of cholangiocarcinomas and benign cholangiocellular lesions
Virchows Arch, 448 (4), 407-11
DOI 10.1007/s00428-005-0145-6, PubMed 16411132

Leibovici A, Rossignol C, Montrowl JA, Erickson JD, Varoqui H, Watanabe M, Chaudhry FA, Bredahl MK, Anderson KJ, Weiss MD (2006)
The effects of hypoxia-ischemia on neutral amino acid transporters in the developing rat brain
Dev Neurosci, 29 (3), 268-74
DOI 10.1159/000097410, PubMed 17124376

Pepaj M, Holm A, Fleckenstein B, Lundanes E, Greibrokk T (2006)
Fractionation and separation of human salivary proteins by pH-gradient ion exchange and reversed phase chromatography coupled to mass spectrometry
J Sep Sci, 29 (4), 519-28
DOI 10.1002/jssc.200500346, PubMed 16583690

Pepaj M, Wilson SR, Novotna K, Lundanes E, Greibrokk T (2006)
Two-dimensional capillary liquid chromatography: pH gradient ion exchange and reversed phase chromatography for rapid separation of proteins
J Chromatogr A, 1120 (1-2), 132-41
DOI 10.1016/j.chroma.2006.02.031, PubMed 16516903

Porojnicu AC, Lagunova Z, Robsahm TE, Berg JP, Dahlback A, Moan J (2006)
Changes in risk of death from breast cancer with season and latitude: sun exposure and breast cancer survival in Norway
Breast Cancer Res Treat, 102 (3), 323-8
DOI 10.1007/s10549-006-9331-8, PubMed 17028983

Stene LC, Thorsby PM, Berg JP, Rønningen KS, Undlien DE, Joner G, Norwegian Childhood Diabetes Study Group (2006)
The relation between size at birth and risk of type 1 diabetes is not influenced by adjustment for the insulin gene (-23HphI) polymorphism or HLA-DQ genotype
Diabetologia, 49 (9), 2068-73
DOI 10.1007/s00125-006-0292-6, PubMed 16691379

Aas AM, Seljeflot I, Torjesen PA, Diep LM, Thorsby PM, Birkeland KI (2006)
Blood glucose lowering by means of lifestyle intervention has different effects on adipokines as compared with insulin treatment in subjects with type 2 diabetes
Diabetologia, 49 (5), 872-80
DOI 10.1007/s00125-006-0205-8, PubMed 16555056

Publications 2005

Berg JP, Bjerknes R (2005)
[Molecular diagnostics in endocrine diseases]
Tidsskr Nor Laegeforen, 125 (21), 2959-63
PubMed 16276381

Bjørkhaug L, Johansson S, Raeder H, Thorsby PM, Undlien DE, Søvik O, Molven A, Sagen JV, Njølstad PR (2005)
[Molecular diagnostics in diabetes mellitus]
Tidsskr Nor Laegeforen, 125 (21), 2968-72
PubMed 16276383

Greibrokk T, Pepaj M, Lundanes E, Andersen T, Novotna K (2005)
Separating proteins by pl-values - Can 2D LC replace 2D GE?
LC GC Eur., 18 (6), 355-+

Løvås K, Erichsen MM, Husebye ES, Fougner KJ, Svartberg J, Mella B, Myhre AG, Berg JP, Aarskog D (2005)
[Primary adrenal failure--causes, diagnostics and therapy]
Tidsskr Nor Laegeforen, 125 (2), 155-8
PubMed 15665886

Thorsby PM, Berg JP, Birkeland KI (2005)
Insulin gene variable number of tandem repeats is associated with increased fat mass during adolescence in non-obese girls
Scand J Clin Lab Invest, 65 (2), 163-8
DOI 10.1080/00365510510013622, PubMed 16025839

Aas AM, Bergstad I, Thorsby PM, Johannesen O, Solberg M, Birkeland KI (2005)
An intensified lifestyle intervention programme may be superior to insulin treatment in poorly controlled Type 2 diabetic patients on oral hypoglycaemic agents: results of a feasibility study
Diabet Med, 22 (3), 316-22
DOI 10.1111/j.1464-5491.2005.01421.x, PubMed 15717881

Publications 2004

Andersen T, Pepaj M, Trones R, Lundanes E, Greibrokk T (2004)
Isoelectric point separation of proteins by capillary pH-gradient ion-exchange chromatography
J Chromatogr A, 1025 (2), 217-26
DOI 10.1016/j.chroma.2003.10.093, PubMed 14763806

Halvorsen S, Thorsby PM, Haug E (2004)
[Acute myocardial infarction in a young man who had been using androgenic anabolic steroids]
Tidsskr Nor Laegeforen, 124 (2), 170-2
PubMed 14743229

Zykova SN, Svartberg J, Seljelid R, Iversen H, Lund A, Svistounov DN, Jenssen TG (2004)
Release of TNF-alpha from in vitro-stimulated monocytes is negatively associated with serum levels of apolipoprotein B in patients with type 2 diabetes
Scand J Immunol, 60 (5), 535-42
DOI 10.1111/j.0300-9475.2004.01509.x, PubMed 15541048

Publications 2003

Birkeland KI, Kilhovd B, Thorsby P, Torjesen PA, Ganss R, Vaaler S, Hanssen KF (2003)
Heterogeneity of non-insulin-dependent diabetes expressed as variability in insulin sensitivity, beta-cell function and cardiovascular risk profile
Diabet Med, 20 (1), 37-45
DOI 10.1046/j.1464-5491.2003.00838.x, PubMed 12519318

Bjørkhaug L, Sagen JV, Thorsby P, Søvik O, Molven A, Njølstad PR (2003)
Hepatocyte nuclear factor-1 alpha gene mutations and diabetes in Norway
J Clin Endocrinol Metab, 88 (2), 920-31
DOI 10.1210/jc.2002-020945, PubMed 12574234

Distante S, Elmberg M, Foss Haug KB, Ovstebø R, Berg JP, Kierulf P, Hultcrantz R, Bell H (2003)
Tumour necrosis factor alpha and its promoter polymorphisms' role in the phenotypic expression of hemochromatosis
Scand J Gastroenterol, 38 (8), 871-7
DOI 10.1080/00365520310003444, PubMed 12940442

Svistounov DN, Berg TJ, McCourt PA, Zykova SN, Elvevold KH, Nagai R, Horiuchi S, Smedsrod BH (2003)
Lack of recognition of Nepsilon-(carboxymethyl)lysine by the mouse liver reticulo-endothelial system: implications for pathophysiology
Biochem Biophys Res Commun, 309 (4), 786-91
DOI 10.1016/j.bbrc.2003.08.080, PubMed 13679041

Publications 2002

Berg JP (2002)
A molecular switch for parathyroid cell differentiation
Eur J Endocrinol, 146 (3), 281-2
DOI 10.1530/eje.0.1460281, PubMed 11888832

Distante S, Bjøro K, Hellum KB, Myrvang B, Berg JP, Skaug K, Raknerud N, Bell H (2002)
Raised serum ferritin predicts non-response to interferon and ribavirin treatment in patients with chronic hepatitis C infection
Liver, 22 (3), 269-75
DOI 10.1046/j.0106-9543.2002.01672.x, PubMed 12100578

Publications 2001

Birkeland KI, Berg JP (2001)
Type 2 diabetes--preventable, but how?
Eur J Endocrinol, 145 (5), 573-5
DOI 10.1530/eje.0.1450573, PubMed 11720873

Undlien DE, Berg JP (2001)
Common variants in the regulatory region of the insulin gene are associated with fasting plasma insulin levels in juvenile obesity
Eur J Endocrinol, 144 (5), 457-9
DOI 10.1530/eje.0.1440457, PubMed 11331210

Publications 2000

Bell H, Berg JP, Undlien DE, Distante S, Raknerud N, Heier HE, Try K, Thomassen Y, Haug E, Raha-Chowdhury R, Thorsby E (2000)
The clinical expression of hemochromatosis in Oslo, Norway. Excessive oral iron intake may lead to secondary hemochromatosis even in HFE C282Y mutation negative subjects
Scand J Gastroenterol, 35 (12), 1301-7
DOI 10.1080/003655200453665, PubMed 11199371

Berg JP (2000)
Leptin is a potent anti-diabetic in mice with lipodystrophy and insulin resistance
Eur J Endocrinol, 142 (2), 114-6
DOI 10.1530/eje.0.1420114, PubMed 10664517

Berg JP (2000)
Pygmy mouse gene mutation protects against obesity
Eur J Endocrinol, 143 (3), 317-8
DOI 10.1530/eje.0.1430317, PubMed 11022171

Berg JP, Lehmann EH, Stakkestad JA, Haug E, Halse J (2000)
The Sp1 binding site polymorphism in the collagen type I alpha 1 (COLIA1) gene is not associated with bone mineral density in healthy children, adolescents, and young adults
Eur J Endocrinol, 143 (2), 261-5
DOI 10.1530/eje.0.1430261, PubMed 10913946

Bratland A, Risberg K, Maelandsmo GM, Gützkow KB, Olsen OE, Moghaddam A, Wang MY, Hansen CM, Blomhoff HK, Berg JP, Fodstad O, Ree AH (2000)
Expression of a novel factor, com1, is regulated by 1,25-dihydroxyvitamin D3 in breast cancer cells
Cancer Res, 60 (19), 5578-83
PubMed 11034106

Distante S, Berg JP, Lande K, Haug E, Bell H (2000)
HFE gene mutation (C282Y) and phenotypic expression among a hospitalised population in a high prevalence area of haemochromatosis
Gut, 47 (4), 575-9
DOI 10.1136/gut.47.4.575, PubMed 10986220

Fuglei E, Aanestad M, Berg JP (2000)
Hormones and metabolites of arctic foxes (Alopex lagopus) in response to season, starvation and re-feeding
Comp Biochem Physiol A Mol Integr Physiol, 126 (2), 287-94
DOI 10.1016/s1095-6433(00)00211-7, PubMed 10936768

Kilhovd BK, Berg TJ, Birkeland KI, Thorsby P, Hanssen KF (2000)
Advanced glycation end products and coronary heart disease in type 2 diabetes - Response to Poirier and Eckel
Diabetes Care, 23 (9), 1441-1442

Rosenfalck AM, Thorsby P, Kjems L, Birkeland K, Dejgaard A, Hanssen KF, Madsbad S (2000)
Improved postprandial glycaemic control with insulin Aspart in type 2 diabetic patients treated with insulin
Acta Diabetol, 37 (1), 41-6
DOI 10.1007/s005920070034, PubMed 10928235

Schafroth U, Godang K, Ueland T, Berg JP, Bollerslev J (2000)
Leptin levels in relation to body composition and insulin concentration in patients with endogenous Cushing's syndrome compared to controls matched for body mass index
J Endocrinol Invest, 23 (6), 349-55
DOI 10.1007/BF03343737, PubMed 10908161

Thorsby P, Kilhovd B, Sletmo R, Martinsen S, Birkeland KI (2000)
[Hypoglycemic treatment of type 2 diabetes]
Tidsskr Nor Laegeforen, 120 (20), 2434-40
PubMed 11475233

Zykova SN, Jenssen TG, Berdal M, Olsen R, Myklebust R, Seljelid R (2000)
Altered cytokine and nitric oxide secretion in vitro by macrophages from diabetic type II-like db/db mice
Diabetes, 49 (9), 1451-8
DOI 10.2337/diabetes.49.9.1451, PubMed 10969828

Publications 1999

Berg JP (1999)
Pluripotent PPARgamma polymorphisms
Eur J Endocrinol, 140 (4), 293-5
DOI 10.1530/eje.0.1400293, PubMed 10097247

Berg JP (1999)
Vitamin D-binding protein prevents vitamin D deficiency and presents vitamin D for its renal activation
Eur J Endocrinol, 141 (4), 321-2
DOI 10.1530/eje.0.1410321, PubMed 10526241

Berg JP, Engeland A, Jellum E, Glattre E (1999)
Serum dehydroepiandrosterone sulfate concentration and thyroid cancer risk: a matched case control study
Thyroid, 9 (3), 285-8
DOI 10.1089/thy.1999.9.285, PubMed 10211606

Berg JP, Haug E (1999)
Vitamin D: a hormonal regulator of the cAMP signaling pathway
Crit Rev Biochem Mol Biol, 34 (5), 315-23
DOI 10.1080/10409239991209327, PubMed 10565677

Distante S, Berg JP, Lande K, Haug E, Bell H (1999)
High prevalence of the hemochromatosis-associated Cys282Tyr HFE gene mutation in a healthy Norwegian population in the city of Oslo, and its phenotypic expression
Scand J Gastroenterol, 34 (5), 529-34
DOI 10.1080/003655299750026290, PubMed 10423072

Feleke Y, Abdulkadir J, Mshana R, Mekbib TA, Brunvand L, Berg JP, Falch JA (1999)
Low levels of serum calcidiol in an African population compared to a North European population
Eur J Endocrinol, 141 (4), 358-60
DOI 10.1530/eje.0.1410358, PubMed 10526248

Kilhovd BK, Berg TJ, Birkeland KI, Thorsby P, Hanssen KF (1999)
Serum levels of advanced glycation end products are increased in patients with type 2 diabetes and coronary heart disease
Diabetes Care, 22 (9), 1543-8
DOI 10.2337/diacare.22.9.1543, PubMed 10480523

Publications 1998

Berg JP (1998)
Stronger bonds between 25-hydroxyvitamin D 1alpha-hydroxylase and pseudovitamin D-deficiency rickets
Eur J Endocrinol, 138 (3), 264-5
DOI 10.1530/eje.0.1380264, PubMed 9539299

Berg JP (1998)
Oestrogens--essential for reproduction in males, too
Eur J Endocrinol, 138 (5), 497-8
DOI 10.1530/eje.0.1380497, PubMed 9625359

Berg JP (1998)
Clues to a possible new variant of thyroid hormone resistance
Eur J Endocrinol, 139 (1), 16-7
DOI 10.1530/eje.0.1390016, PubMed 9703372

Berg JP (1998)
Glucocorticoid-stimulated gene expression knocked out by knock-in mutation
Eur J Endocrinol, 139 (5), 479-80
DOI 10.1530/eje.0.1390479, PubMed 9849810

Erichsen KE, Berg JP, Torjesen PA, Haug E, Johannesen O (1998)
[Thyroid hormone resistance. Clinical, biochemical and genetic study of a family]
Tidsskr Nor Laegeforen, 118 (4), 525-9
PubMed 9520578

Hanssen KF, Birkeland KI, Thorsby P (1998)
[Type 2-diabetes consists of several diseases]
Tidsskr Nor Laegeforen, 118 (7), 1025
PubMed 9531820

Røttingen JA, Thorsby P, Seem C, Gautvik K (1998)
[Medical research at Norwegian universities. Recruitment crisis when it comes to basic fields]
Tidsskr Nor Laegeforen, 118 (26), 4123
PubMed 9844521

Røttingen JA, Thorsby P, Seem C, Gautvik KM (1998)
[Medical research at Norwegian universities]
Tidsskr Nor Laegeforen, 118 (15), 2339-43
PubMed 9691802

Thorsby P, Undlien DE, Berg JP, Thorsby E, Birkeland KI (1998)
[Diabetes mellitus--a complex interaction between heredity and environment]
Tidsskr Nor Laegeforen, 118 (16), 2519-24
PubMed 9667132

Publications 1997

Abdulkadir J, Feleke Y, Berg JP, Falch JA, Odegaard OR (1997)
Absence of the factor V Leiden mutation in Ethiopians
Thromb Res, 86 (5), 431-2
DOI 10.1016/s0049-3848(97)00090-x, PubMed 9211636

Berg JP (1997)
The adipocyte fatty acid-binding protein links obesity and insulin resistance
Eur J Endocrinol, 136 (5), 467-8
DOI 10.1530/eje.0.1360467, PubMed 9186264

Berg JP (1997)
Autocrine/paracrine cell death in Hashimoto's thyroiditis
Eur J Endocrinol, 137 (2), 122-3
DOI 10.1530/eje.0.1370122, PubMed 9272098

Gunnes M, Berg JP, Halse J, Lehmann EH (1997)
Lack of relationship between vitamin D receptor genotype and forearm bone gain in healthy children, adolescents, and young adults
J Clin Endocrinol Metab, 82 (3), 851-5
DOI 10.1210/jcem.82.3.3814, PubMed 9062495

Ree AH, Florenes VA, Berg JP, Maelandsmo GM, Nesland JM, Fodstad O (1997)
High levels of messenger RNAs for tissue inhibitors of metalloproteinases (TIMP-1 and TIMP-2) in primary breast carcinomas are associated with development of distant metastases
Clin Cancer Res, 3 (9), 1623-8
PubMed 9815852

Publications 1996

Berg JP, Falch JA, Haug E (1996)
Fracture rate, pre- and postmenopausal bone mass and early and late postmenopausal bone loss are not associated with vitamin D receptor genotype in a high-endemic area of osteoporosis
Eur J Endocrinol, 135 (1), 96-100
DOI 10.1530/eje.0.1350096, PubMed 8765980

de Blécourt RA, Roddi R, Berg JP, Bloem JJ (1996)
Nasal dysplasia
Ann Plast Surg, 37 (6), 633-7
DOI 10.1097/00000637-199612000-00011, PubMed 8988777

Publications 1994

Berg JP, Glattre E, Haldorsen T, Høstmark AT, Bay IG, Johansen AF, Jellum E (1994)
Longchain serum fatty acids and risk of thyroid cancer: a population-based case-control study in Norway
Cancer Causes Control, 5 (5), 433-9
DOI 10.1007/BF01694757, PubMed 7999965

Berg JP, Liane KM, Bjørhovde SB, Bjøro T, Torjesen PA, Haug E (1994)
Vitamin D receptor binding and biological effects of cholecalciferol analogues in rat thyroid cells
J Steroid Biochem Mol Biol, 50 (3-4), 145-50
DOI 10.1016/0960-0760(94)90021-3, PubMed 8049143

Berg JP, Ree AH, Sandvik JA, Taskén K, Landmark BF, Torjesen PA, Haug E (1994)
1,25-dihydroxyvitamin D3 alters the effect of cAMP in thyroid cells by increasing the regulatory subunit type II beta of the cAMP-dependent protein kinase
J Biol Chem, 269 (51), 32233-8
PubMed 7798223

Berg JP, Sandvik JA, Ree AH, Sørnes G, Bjøro T, Torjesen PA, Gordeladze JO, Haug E (1994)
1,25-Dihydroxyvitamin D3 attenuates adenylyl cyclase activity in rat thyroid cells: reduction of thyrotropin receptor number and increase in guanine nucleotide-binding protein Gi-2 alpha
Endocrinology, 135 (2), 595-602
DOI 10.1210/endo.135.2.8033808, PubMed 8033808

Sørnes S, Bjøro T, Berg JP, Torjesen PA, Haug E (1994)
Calcitriol attenuates the basal and vasoactive intestinal peptide-stimulated cAMP production in prolactin-secreting rat pituitary (GH4C1) cells
Mol Cell Endocrinol, 101 (1-2), 183-8
DOI 10.1016/0303-7207(94)90233-x, PubMed 9397951

Publications 1993

Berg JP, Torjesen PA, Haug E (1993)
1,25-dihydroxyvitamin D3 attenuates TSH and 8-(4-chlorophenylthio)-cAMP-stimulated growth and iodide uptake by rat thyroid cells (FRTL-5)
Thyroid, 3 (3), 245-51
DOI 10.1089/thy.1993.3.245, PubMed 8257867

Glattre E, Haldorsen T, Berg JP, Stensvold I, Solvoll K (1993)
Norwegian case-control study testing the hypothesis that seafood increases the risk of thyroid cancer
Cancer Causes Control, 4 (1), 11-6
DOI 10.1007/BF00051708, PubMed 8431525

Publications 1991

Berg JP, Sørnes G, Torjesen PA, Haug E (1991)
Cholecalciferol metabolites attenuate cAMP production in rat thyroid cells (FRTL-5)
Mol Cell Endocrinol, 76 (1-3), 201-6
DOI 10.1016/0303-7207(91)90274-v, PubMed 1668203

Berg JP, Torjesen PA, Haug E (1991)
Calcitriol receptors in rat thyroid follicular cells (FRTL-5)
Acta Endocrinol (Copenh), 125 (5), 574-80
DOI 10.1530/acta.0.1250574, PubMed 1661998

Publications 1989

de Groen JH, Berg JP, Mays HE, Sanches H, ten Velde GP, Visser BF (1989)
[Snoring as a symptom of severe respiratory obstruction during sleep: causes and results]
Ned Tijdschr Geneeskd, 133 (30), 1496-501
PubMed 2797251

van Deenen WL, Lamers WP, Pasmans-Woudstra TC, Berg JP (1989)
An unconventional view of dacryocystorhinostomy
Doc Ophthalmol, 72 (3-4), 225-33
DOI 10.1007/BF00153489, PubMed 2625084

Publications 1984

Wibe E, Berg JP, Tveit KM, Nesland JM, Lunde S (1984)
Multicellular spheroids grown directly from human tumour material
Int J Cancer, 34 (1), 21-6
DOI 10.1002/ijc.2910340105, PubMed 6746116