Vitenskapelig artikkel

• Banjara, Sarala; Berggreen, Ellen; Igland, Jannicke et al. (2025). Plasma levels of immune system activation markers Neopterin and Kynurenine-to-Tryptophan Ratio, and oral health among community-dwelling adults in Norway: a population-based, cohort study. (ekstern lenke)
• Hagen, Ingrid Valheim; Helland, Anita; Bratlie, Marianne et al. (2023). Serum concentrations of amino acids and tryptophan metabolites are affected by consumption of a light breakfast: a clinical intervention study in adults with overweight or obesity. (ekstern lenke)
• Paragomi, Pedram; Wang, Renwei; Huang, Joyce Y. et al. (2023). The Association between Serum Riboflavin and Flavin Mononucleotide with Pancreatic Cancer: Findings from a Prospective Cohort Study. (ekstern lenke)
• Midttun, Øivind; Ulvik, Arve; Meyer, Klaus et al. (2023). A cross-sectional study of inflammatory markers as determinants of circulating kynurenines in the Lung Cancer Cohort Consortium. (ekstern lenke)
• Solvang, Stein-Erik Hafstad; Hodge, Allison; Watne, Leiv et al. (2022). Kynurenine Pathway Metabolites in the Blood and Cerebrospinal Fluid Are Associated with Human Aging. (ekstern lenke)
• Helland, Anita; Bratlie, Marianne; Hagen, Ingrid Valheim et al. (2022). Consumption of a light meal affects serum concentrations of one-carbon metabolites and B-vitamins. A clinical intervention study. (ekstern lenke)
• Luu, Hung N.; Paragomi, Pedram; Wang, Renwei et al. (2022). The Association between Serum Serine and Glycine and Related-Metabolites with Pancreatic Cancer in a Prospective Cohort Study. (ekstern lenke)
• Gelpi, M; Vestad, Beate; Raju, Sajan et al. (2022). Association of the Kynurenine Pathway of Tryptophan Metabolism with Human Immunodeficiency Virus-Related Gut Microbiota Alterations and Visceral Adipose Tissue Accumulation. (ekstern lenke)
• Samanic, Claudine M.; Yue, Yiyang; Cote, David J. et al. (2022). A prospective study of pre-diagnostic circulating tryptophan and kynurenine, and the kynurenine/tryptophan ratio and risk of glioma. (ekstern lenke)
• Dhillon, Amandeep Kaur; Rupp, Christian; Bergquist, Annika et al. (2021). Associations of neopterin and kynurenine–tryptophan ratio with survival in primary sclerosing cholangitis. (ekstern lenke)
• Bakker, Lieke; Ramakers, Inez H. G. B.; Boxtel, Martin P. J. van et al. (2021). Associations between plasma kynurenines and cognitive function in individuals with normal glucose metabolism, prediabetes and type 2 diabetes: the Maastricht Study. (ekstern lenke)
• Söderström, Elisabet; Nilsson, Torbjörn K.; Schneede, Jörn et al. (2021). Plasma cotinine is positively associated with homocysteine in smokers but not in users of smokeless tobacco. (ekstern lenke)
• Clasen, Joanna L; Heath, Alicia K.; Puyvelde, Heleen Van et al. (2021). A comparison of complementary measures of vitamin B6 status, function, and metabolism in the European Prospective Investigation into Cancer and Nutrition (EPIC) study. (ekstern lenke)
• Vikøren, Linn A.; Drotningsvik, Aslaug; Midttun, Øivind et al. (2021). Baked cod consumption delayed the development of kidney and liver dysfunction and affected plasma amino acid concentrations, but did not affect blood pressure, blood glucose or liver triacylglycerol concentrations in obese fa/fa Zucker rats.. (ekstern lenke)
• Helland, Anita; Bratlie, Marianne; Hagen, Ingrid Valheim et al. (2021). Effect of high intake of cod or salmon on serum total neopterin concentration: a randomised clinical trial. (ekstern lenke)
• Drivsholm, Ninna; Knudsen, Andreas; Faurholt-Jepsen, Maria et al. (2021). Alterations in the Kynurenine Pathway of Tryptophan Metabolism Are Associated With Depression in People Living With HIV. (ekstern lenke)
• Li, Sherly X.; Hodge, Allison M.; MacInnis, Robert J. et al. (2021). Inflammation-related marker profiling of dietary patterns and all-cause mortality in the melbourne collaborative cohort study. (ekstern lenke)
• Yue, Yiyang; Creed, Jordan H.; Cote, David J. et al. (2021). Pre-diagnostic circulating concentrations of fat-soluble vitamins and risk of glioma in three cohort studies. (ekstern lenke)
• Vildmyren, Iselin; Halstensen, Alfred; McCann, Adrian et al. (2020). Effect of cod residual protein supplementation on markers of glucose regulation in lean adults: A randomized double-blind study. (ekstern lenke)
• Gelpi, Marco; Ueland, Per Magne; Trøseid, Marius et al. (2020). Abdominal Adipose Tissue Is Associated With Alterations in Tryptophan-Kynurenine Metabolism and Markers of Systemic Inflammation in People With Human Immunodeficiency Virus. (ekstern lenke)
• Huang, Joyce Y.; Luu, Hung N.; Butler, Lesley M. et al. (2020). A prospective evaluation of serum methionine-related metabolites in relation to pancreatic cancer risk in two prospective cohort studies. (ekstern lenke)
• Kummen, Martin; Thingholm, Louise B.; Rühlemann, Malte C. et al. (2020). Altered Gut Microbial Metabolism of Essential Nutrients in Primary Sclerosing Cholangitis. (ekstern lenke)
• Bratlie, Marianne; Hagen, Ingrid Valheim; Helland, Anita et al. (2020). Five salmon dinners per week were not sufficient to prevent the reduction in serum vitamin D in autumn at 60° north latitude: A randomised trial. (ekstern lenke)
• Lund, Anders; Nordrehaug, Jan Erik; Slettom, Grete et al. (2020). Plasma kynurenines and prognosis in patients with heart failure. (ekstern lenke)
• Hildre, Audun Skjærseth; Solvang, Stein-Erik Hafstad; Aarsland, Dag et al. (2020). Components of the choline oxidation pathway modify the association between the apolipoprotein ε4 gene variant and cognitive decline in patients with dementia. (ekstern lenke)
• Dhar, Indu; Siddique, Sumia; Pedersen, Eva Kristine Ringdal et al. (2020). Lipid parameters and vitamin A modify cardiovascular risk prediction by plasma neopterin. (ekstern lenke)
• Widbom, Lovisa; Schneede, Jørn; Midttun, Øivind et al. (2020). Elevated plasma cotinine is associated with an increased risk of developing IBD, especially among users of combusted tobacco. (ekstern lenke)
• Thomas, Claire E.; Wang, Renwei; Adams-Haduch, Jennifer et al. (2020). Urinary cotinine is as good a biomarker as serum cotinine for cigarette smoking exposure and lung cancer risk prediction. (ekstern lenke)
• Bratlie, Marianne; Hagen, Ingrid Valheim; Helland, Anita et al. (2020). Effects of high intake of cod or salmon on gut microbiota profile, faecal output and serum concentrations of lipids and bile acids in overweight adults: a randomised clinical trial. (ekstern lenke)
• Gylling, Björn; Myte, Robin; Ulvik, Arve et al. (2019). One-carbon metabolite ratios as functional B-vitamin markers and in relation to colorectal cancer risk. (ekstern lenke)
• Hagen, Ingrid Valheim; Helland, Anita; Bratlie, Marianne et al. (2019). TMAO, creatine and 1-methylhistidine in serum and urine are potential biomarkers of cod and salmon intake: a randomised clinical trial in adults with overweight or obesity. (ekstern lenke)
• Aarsland, Tore Ivar Malmei; Leskauskaite, Ieva; Midttun, Øivind et al. (2019). The effect of electroconvulsive therapy (ECT) on serum tryptophan metabolites. (ekstern lenke)
• Zuo, Hui; Ueland, Per Magne; Midttun, Øivind et al. (2019). Vitamin B6 catabolism and lung cancer risk: Results from the Lung Cancer Cohort Consortium (LC3). (ekstern lenke)
• Lysne, Vegard; Bjørndal, Bodil; Grinna, Mari Lausund et al. (2019). Short-term treatment with a peroxisome proliferator-activated receptor α agonist influences plasma one-carbon metabolites and B-vitamin status in rats. (ekstern lenke)
• Ulven, Stine Marie; Christensen, Jacob J.; Nygård, Ottar et al. (2019). Using metabolic profiling and gene expression analyses to explore molecular effects of replacing saturated fat with polyunsaturated fat-a randomized controlled dietary intervention study. (ekstern lenke)
• Drotningsvik, Aslaug; Midttun, Øivind; Vikøren, Linn Anja Slåke et al. (2019). Urine and plasma concentrations of amino acids and plasma vitamin status differ, and are differently affected by salmon intake, in obese Zucker fa/fa rats with impaired kidney function and in Long-Evans rats with healthy kidneys. (ekstern lenke)
• Ervik, Arne Olav; Solvang, Stein-Erik Hafstad; Nordrehaug, Jan Erik et al. (2019). The associations between cognitive prognosis and kynurenines are modified by the apolipoprotein ε4 allele variant in patients with dementia. (ekstern lenke)
• Sande, Jon Sigurd; Ulvik, Arve; Midttun, Øivind et al. (2019). Vitamin B-6 Status Correlates with Disease Activity in Rheumatoid Arthritis Patients During Treatment with TNFα Inhibitors. (ekstern lenke)
• Ulvik, Arve; Midttun, Øivind; McCann, Adrian et al. (2019). Tryptophan catabolites as metabolic markers of vitamin B-6 status evaluated in cohorts of healthy adults and cardiovascular patients. (ekstern lenke)
• Solvang, Stein-Erik Hafstad; Nordrehaug, Jan Erik; Tell, Grethe S. et al. (2019). The kynurenine pathway and cognitive performance in community-dwelling older adults. The Hordaland Health Study. (ekstern lenke)
• Solvang, Stein-Erik Hafstad; Nordrehaug, Jan Erik; Aarsland, Dag et al. (2019). Kynurenines, Neuropsychiatric Symptoms, and Cognitive Prognosis in Patients with Mild Dementia. (ekstern lenke)
• Muller, David C.; Larose, Tricia L; Hodge, Allison et al. (2019). Circulating high sensitivity C reactive protein concentrations and risk of lung cancer: Nested case-control study within Lung Cancer Cohort Consortium. (ekstern lenke)
• Mårild, Karl Staffan; Tapia, German; Midttun, Øivind et al. (2019). Smoking in pregnancy, cord blood cotinine and risk of celiac disease diagnosis in offspring. (ekstern lenke)
• Olsen, Thomas; Vinknes, Kathrine; Blomhoff, Rune et al. (2019). Creatinine, total cysteine and uric acid are associated with serum retinol in patients with cardiovascular disease. (ekstern lenke)
• Huang, Joyce Yongxu; Larose, Tricia L; Luu, Hung N. et al. (2019). Circulating markers of cellular immune activation in pre-diagnostic blood sample and lung cancer risk in the Lung Cancer Cohort Consortium (LC3). (ekstern lenke)
• Fanidi, Anouar; Carreras-Torres, Robert; Larose, Tricia L et al. (2018). Is high vitamin B12 status a cause of lung cancer?. (ekstern lenke)
• Larose, Tricia L; Guida, Florence; Anouar, Fanidi et al. (2018). Circulating cotinine concentrations and lung cancer risk in the Lung Cancer Cohort Consortium (LC3). (ekstern lenke)
• Zuo, Hui; Tell, Grethe S.; Ueland, Per Magne et al. (2018). The PAr index, an indicator reflecting altered vitamin B-6 homeostasis, is associated with long-term risk of stroke in the general population: the Hordaland Health Study (HUSK). (ekstern lenke)
• Muller, David C.; Hodge, Allison M.; Fanidi, Anouar et al. (2018). No association between circulating concentrations of vitamin D and risk of lung cancer: An analysis in 20 prospective studies in the Lung Cancer Cohort Consortium (LC3). (ekstern lenke)
• Huang, Joyce Y.; Butler, Lesley M.; Midttun, Øivind et al. (2018). A prospective evaluation of serum kynurenine metabolites and risk of pancreatic cancer. (ekstern lenke)
• Midttun, Øivind; Ulvik, Arve; Nygård, Ottar et al. (2018). Performance of plasma trigonelline as a marker of coffee consumption in an epidemiologic setting. (ekstern lenke)
• Borowczyk, Kamila; Piechocka, Justyna; Głowacki, Rafał et al. (2018). Urinary excretion of homocysteine thiolactone and the risk of acute myocardial infarction in coronary artery disease patients: the WENBIT trial. (ekstern lenke)
• Zuo, Hui; Nygård, Ottar; Ueland, Per Magne et al. (2018). Association of plasma neopterin with risk of an inpatient hospital diagnosis of atrial fibrillation: results from two prospective cohort studies. (ekstern lenke)
• Olsen, Thomas; Vinknes, Kathrine; Svingen, Gard Frodahl Tveitevåg et al. (2018). The risk association of plasma total homocysteine with acute myocardial infarction is modified by serum vitamin A. (ekstern lenke)
• Magnus, Maria Christine; Tapia, German; Olsen, Sjurdur Frodi et al. (2018). Parental smoking and risk of childhood-onset type 1 diabetes. (ekstern lenke)
• Vollsæter, Maria; Halvorsen, Thomas; Markestad, Trond et al. (2018). Renal function and blood pressure in 11 year old children born extremely preterm or small for gestational age. (ekstern lenke)
• Mjelva, Øistein; Svingen, Gard Frodahl Tveitevåg; Pedersen, Eva Ringdal et al. (2018). Fibrinogen and Neopterin Is Associated with Future Myocardial Infarction and Total Mortality in Patients with Stable Coronary Artery Disease. (ekstern lenke)
• Herrstedt, Anita; Bay, Marie L; Simonsen, Casper et al. (2018). Exercise-mediated improvement of depression in patients with gastro-esophageal junction cancer is linked to kynurenine metabolism. (ekstern lenke)
• Quist-Paulsen, Else; Aukrust, Pål; Kran, Anne-Marte Bakken et al. (2018). High neopterin and IP-10 levels in cerebrospinal fluid are associated with neurotoxic tryptophan metabolites in acute central nervous system infections. (ekstern lenke)
• Agudelo, Leandro Z.; Ferreira, Duarte M.S.; Cervenka, Igor et al. (2018). Kynurenic Acid and Gpr35 Regulate Adipose Tissue Energy Homeostasis and Inflammation. (ekstern lenke)
• Degerud, Eirik; Nygård, Ottar; Vogel, Stefan De et al. (2018). Plasma 25-hydroxyvitamin D and mortality in patients with suspected stable angina pectoris. (ekstern lenke)
• Bassett, Julie K.; Brinkman, Maree T.; Dugué, Pierre-Antoine et al. (2018). Circulating concentrations of B group vitamins and urothelial cell carcinoma. (ekstern lenke)
• Theofylaktopoulou, Despoina; Midttun, Øivind; Ueland, Per Magne et al. (2018). Impaired functional vitamin B6 status is associated with increased risk of lung cancer. (ekstern lenke)
• Drotningsvik, Aslaug; Midttun, Øivind; Mccann, Adrian et al. (2018). Dietary intake of cod protein beneficially affects concentrations of urinary markers of kidney function and results in lower urinary loss of amino acids in obese Zucker fa/fa rats. (ekstern lenke)
• Christensen, Monika; Fadnes, Dag Jone Stokke; Røst, Therese Halvorsen et al. (2018). Inflammatory markers, the tryptophan-kynurenine pathway, and Vitamin B status after bariatric surgery. (ekstern lenke)
• Olsen, Thomas; Vinknes, Kathrine; Svingen, Gard Frodahl Tveitevåg et al. (2017). Cardiovascular disease risk associated with serum apolipoprotein B is modified by serum vitamin A. (ekstern lenke)
• Zuo, Hui; Nygård, Ottar; Vollset, Stein Emil et al. (2017). Smoking, plasma cotinine and risk of atrial fibrillation: the Hordaland Health Study. (ekstern lenke)
• Mccann, Adrian; Midttun, Øivind; Whitfield, Kyly C. et al. (2017). Comparable performance characteristics of plasma thiamine and erythrocyte thiamine diphosphate in response to thiamine fortification in rural cambodian women. (ekstern lenke)
• Ulvik, Arve; Hustad, Simon Steinar; Mccann, Adrian et al. (2017). Ratios of one-carbon metabolites are functional markers of B-vitamin status in a Norwegian coronary angiography screening cohort. (ekstern lenke)
• Karlsson, Therese; Strand, Elin; Dierkes, Jutta et al. (2017). Associations between intake of fish and n-3 long-chain polyunsaturated fatty acids and plasma metabolites related to the kynurenine pathway in patients with coronary artery disease. (ekstern lenke)
• Zuo, Hui; Ueland, Per Magne; Midttun, Øivind et al. (2017). Results from the European prospective investigation into cancer and nutrition link vitamin B6 catabolism and lung cancer risk. (ekstern lenke)
• Midttun, Øivind; Theofylaktopoulou, Despoina; Mccann, Adrian et al. (2017). Circulating concentrations of biomarkers and metabolites related to Vitamin status, one-carbon and the kynurenine pathways in US, Nordic, Asian, and Australian populations. (ekstern lenke)
• Vistnes, Maria; Tapia, German; Mårild, Karl Staffan et al. (2017). Plasma immunological markers in pregnancy and cord blood: A possible link between macrophage chemo-attractants and risk of childhood type 1 diabetes. (ekstern lenke)
• DeRatt, Barbara N.; Ralat, Maria A.; Lysne, Vegard et al. (2017). Metabolomic evaluation of the consequences of plasma cystathionine elevation in adults with stable angina pectoris. (ekstern lenke)
• Bjørnestad, Espen Øglænd; Borsholm, Robert Andre; Svingen, Gard Frodahl Tveitevåg et al. (2017). Neopterin as an effect modifier of the cardiovascular risk predicted by total homocysteine: A prospective 2-cohort study. (ekstern lenke)
• Dahlberg, Daniel; Struys, Eduard A.; Janssen, EE et al. (2017). Cyst Fluid From Cystic, Malignant Brain Tumors: A Reservoir of Nutrients, Including Growth Factor-Like Nutrients, for Tumor Cells.. (ekstern lenke)
• Rebnord, Eirik Wilberg; Strand, Elin; Midttun, Øivind et al. (2017). The kynurenine:tryptophan ratio as a predictor of incident type 2 diabetes mellitus in individuals with coronary artery disease. (ekstern lenke)
• Kvestad, Ingrid; Hysing, Mari; Shrestha, Merina et al. (2017). Vitamin B-12 status in infancy is positively associated with development and cognitive functioning 5 y later in Nepalese children. (ekstern lenke)
• Melvær, Giil Lasse; Midttun, Øivind; Refsum, Helga et al. (2017). Kynurenine pathway metabolites in Alzheimer's disease. (ekstern lenke)
• Monsen, Anne Lise Bjørke; Ulvik, Arve; Nilsen, Roy Miodini et al. (2016). Impact of Pre-Pregnancy BMI on B Vitamin and Inflammatory Status in Early Pregnancy: An Observational Cohort Study. (ekstern lenke)
• Midttun, Øivind; Mccann, Adrian; Aarseth, Ove et al. (2016). Combined measurement of 6 fat-soluble vitamins and 26 water-soluble functional vitamin markers and amino Acids in 50 μl of serum or plasma by high-throughput mass spectrometry. (ekstern lenke)
• Magnus, Maria Christine; Karlstad, Øystein; Midttun, Øivind et al. (2016). Maternal plasma total neopterin and kynurenine/tryptophan levels during pregnancy in relation to asthma development in the offspring. (ekstern lenke)
• Joubert, Bonnie R; Dekker, Herman T Den; Felix, Janine F et al. (2016). Maternal plasma folate impacts differential DNA methylation in an epigenome-wide meta-analysis of newborns. (ekstern lenke)
• Ulak, Manjeswori; Chandyo, Ram Krishna; Thorne-Lyman, Andrew L. et al. (2016). Vitamin status among breastfed infants in Bhaktapur, Nepal. (ekstern lenke)
• Ulvik, Arve; Pedersen, Eva Ringdal; Svingen, Gard Frodahl Tveitevåg et al. (2016). Vitamin B-6 catabolism and long-term mortality risk in patients with coronary artery disease. (ekstern lenke)
• Deac, Oana M.; Mills, James L.; Gardiner, Clair M. et al. (2016). Serum immune system biomarkers neopterin and interleukin-10 are strongly related to tryptophan metabolism in healthy young adults. (ekstern lenke)
• Fanidi, Anouar; Muller, David C.; Midttun, Øivind et al. (2016). Circulating Vitamin D in relation to cancer incidence and survival of the head and neck and oesophagus in the EPIC cohort. (ekstern lenke)
• Lysne, Vegard; Strand, Elin; Svingen, Gard Frodahl Tveitevåg et al. (2016). Peroxisome Proliferator-Activated Receptor Activation is Associated with Altered Plasma One-Carbon Metabolites and B-Vitamin Status in Rats. (ekstern lenke)
• Reese, Sarah E; Zhao, Shanshan; Wu, Michael C et al. (2016). DNA methylation score as a biomarker in newborns for sustained maternal smoking during pregnancy. (ekstern lenke)
• Huang, Joyce Y.; Butler, Lesley M.; Midttun, Øivind et al. (2016). Serum B6 vitamers (pyridoxal 5′-phosphate, pyridoxal, and 4-pyridoxic acid) and pancreatic cancer risk: two nested case–control studies in Asian populations. (ekstern lenke)
• Chuang, Shu-Chun; Boeing, Heiner; Vollset, Stein Emil et al. (2016). Cellular immune activity biomarker neopterin is associated hyperlipidemia: results from a large population-based study. (ekstern lenke)
• Zuo, Hui; Ueland, Per Magne; Ulvik, Arve et al. (2016). Plasma Biomarkers of Inflammation, the Kynurenine Pathway, and Risks of All-Cause, Cancer, and Cardiovascular Disease Mortality: The Hordaland Health Study. (ekstern lenke)
• Aleksandrova, Krasimira; Chuang, Shu-Chun; Boeing, Heiner et al. (2015). A prospective study of the immune system activation biomarker neopterin and colorectal cancer risk. (ekstern lenke)
• Zuo, Hui; Ueland, Per Magne; Eussen, Simone et al. (2015). Markers of vitamin B6 status and metabolism as predictors of incident cancer: The Hordaland Health Study. (ekstern lenke)
• Degerud, Eirik Magnus Meek; Hoff, Rune; Nygård, Ottar et al. (2015). Cosinor modelling of seasonal variation in 25-hydroxyvitamin D concentrations in cardiovascular patients in Norway. (ekstern lenke)
• Pedersen, Eva Ringdal; Tuseth, Nora; Eussen, Simone et al. (2015). Associations of plasma kynurenines with risk of acute myocardial infarction in patients with stable angina pectoris. (ekstern lenke)
• Torsvik, Ingrid Kristin; Ueland, Per Magne; Markestad, Trond et al. (2015). Motor development related to duration of exclusive breastfeeding, B vitamin status and B12 supplementation in infants with a birth weight between 2000-3000 g, results from a randomized intervention trial. (ekstern lenke)
• Muller, David C.; Johansson, Mattias; Zaridze, David et al. (2015). Circulating concentrations of vitamin B6 and kidney cancer prognosis: A prospective case-cohort study. (ekstern lenke)
• Skeie, Eli; Strand, Elin; Pedersen, Eva Ringdal et al. (2015). Circulating B-vitamins and smoking habits are associated with serum polyunsaturated fatty acids in patients with suspected coronary heart disease: A cross-sectional study. (ekstern lenke)
• Carter, Tonia C.; Pangilinan, Faith; Molloy, Anne M. et al. (2015). Common variants at putative regulatory sites of the tissue nonspecific alkaline phosphatase gene influence circulating pyridoxal 5'-phosphate concentration in healthy adults. (ekstern lenke)
• Muller, David C.; Scelo, Ghislaine; Zaridze, David et al. (2015). Circulating 25-hydroxyvitamin D3 and survival after diagnosis with kidney cancer. (ekstern lenke)
• Rios-Avila, Luisa; Coats, Bonnie; Ralat, Maria et al. (2015). Pyridoxine supplementation does not alter in vivo kinetics of one-carbon metabolism but modifies patterns of one-carbon and tryptophan metabolites in Vitamin B-6-insufficient oral contraceptive users. (ekstern lenke)
• Gaardbo, Julie C.; Trøseid, Marius; Stiksrud, Birgitte et al. (2015). Increased tryptophan catabolism is associated with depletion of Tc17/MAIT cells, and lower CD4 cell count in HIV-1 infected patients on cART after two years of follow-up. (ekstern lenke)
• Rios-Avila, Luisa; Coats, Bonnie; Chi, Yueh-Yun et al. (2015). Metabolite profile analysis reveals association of vitamin B-6 with metabolites related to one-carbon metabolism and tryptophan catabolism but notwith biomarkers of inflammation in oral contraceptive users and reveals the effects of oral contraceptives on these processes. (ekstern lenke)
• Deac, Oana M.; Mills, James L.; Shane, Barry et al. (2015). Tryptophan catabolism and vitamin B-6 status are affected by gender and lifestyle factors in healthy young adults. (ekstern lenke)
• Eussen, Simone; Ueland, Per Magne; Vollset, Stein Emil et al. (2015). Kynurenines as predictors of acute coronary events in the Hordaland Health Study. (ekstern lenke)
• Ulvik, Arve; Midttun, Øivind; Pedersen, Eva Kristine Ringdal et al. (2014). Evidence for increased catabolism of vitamin B-6 during systemic inflammation. (ekstern lenke)
• Apalset, Ellen M; Gjesdal, Clara Gram; Ueland, Per Magne et al. (2014). Interferon gamma (IFN-γ)-mediated inflammation and the kynurenine pathway in relation to risk of hip fractures: The Hordaland Health Study. (ekstern lenke)
• Apalset, Ellen M; Gjesdal, Clara Gram; Ueland, Per Magne et al. (2014). Interferon (IFN)-γ-mediated inflammation and the kynurenine pathway in relation to bone mineral density: The Hordaland Health Study. (ekstern lenke)
• Joubert, Bonnie R.; Håberg, Siri Eldevik; Bell, Douglas A. et al. (2014). Maternal smoking and DNA methylation in newborns: In utero effect or epigenetic inheritance?. (ekstern lenke)
• Johansson, Mattias; Anouar, Fanidi; Muller, David C. et al. (2014). Circulating biomarkers of one-carbon metabolism in relation to renal cell carcinoma incidence and survival. (ekstern lenke)
• Midttun, Øivind; Townsend, Mary K.; Nygård, Ottar et al. (2014). Most blood biomarkers related to vitamin status, one-carbon metabolism, and the kynurenine pathway show adequate preanalytical stability and within-person reproducibility to allow assessment of exposure or nutritional status in healthy women and cardiovascular patients. (ekstern lenke)
• Theofylaktopoulou, Despoina; Ulvik, Arve; Midttun, Øivind et al. (2014). Vitamins B2 and B6 as determinants of kynurenines and related markers of interferon-gamma-mediated immune activation in the community-based Hordaland health study.. (ekstern lenke)
• Zuo, Hui; Tell, Grethe Seppola; Vollset, Stein Emil et al. (2014). Interferon-γ-induced inflammatory markers and the risk of cancer: The Hordaland Health Study. (ekstern lenke)
• Øyen, Jannike; Gjesdal, Clara Gram; Nygård, Ottar et al. (2014). Smoking and body fat mass in relation to bone mineral density and hip fracture: The Hordaland Health Study. (ekstern lenke)
• Muller, David C; Fanidi, Anouar; Midttun, Øivind et al. (2014). Circulating 25-hydroxyvitamin D3 in relation to renal cell carcinoma incidence and survival in the EPIC cohort. (ekstern lenke)
• Fanidi, Anouar; Relton, Caroline; Ueland, Per Magne et al. (2014). A prospective study of one-carbon metabolism biomarkers and cancer of the head and neck and esophagus. (ekstern lenke)
• Chuang, Shu-Chun; Fanidi, Anouar; Ueland, Per Magne et al. (2014). Circulating biomarkers of tryptophan and the kynurenine pathway and lung cancer risk. (ekstern lenke)
• Eussen, Simone; Nilsen, Roy Miodini; Midttun, Øivind et al. (2013). North-south gradients in plasma concentrations of B-vitamins and other components of one-carbon metabolism in Western Europe: results from the European Prospective Investigation into Cancer and Nutrition (EPIC) Study. (ekstern lenke)
• Sulo, Gerhard; Vollset, Stein Emil; Nygård, Ottar et al. (2013). Neopterin and kynurenine-tryptophan ratio as predictors of coronary events in older adults, the Hordaland Health Study. (ekstern lenke)
• Torsvik, Ingrid Kristin; Markestad, Trond; Ueland, Per Magne et al. (2013). Evaluating iron status and the risk of anemia in young infants using erythrocyte parameters. (ekstern lenke)
• Silva, Vanessa R. da; Rios-Avila, Luisa; Lamers, Yvonne et al. (2013). Metabolite profile analysis reveals functional effects of 28-day vitamin B-6 restriction on one-carbon metabolism and tryptophan catabolic pathways in healthy men and women. (ekstern lenke)
• Cope, Elizabeth L.; Shrubsole, Martha J.; Cohen, Sarah S. et al. (2013). Intraindividual variation in one-carbon metabolism plasma biomarkers. (ekstern lenke)
• Ulvik, Arve; Theofylaktopoulou, Despoina; Midttun, Øivind et al. (2013). Substrate product ratios of enzymes in the kynurenine pathway measured in plasma as indicators of functional vitamin B-6 status. (ekstern lenke)
• Baltar, Valéria Troncoso; Xun, Wei W.; Johansson, Mattias et al. (2013). A structural equation modelling approach to explore the role of B vitamins and immune markers in lung cancer risk. (ekstern lenke)
• Monsen, Anne Lise Bjørke; Roth, Christine; Magnus, Per et al. (2013). Maternal B vitamin status in pregnancy week 18 according to reported use of folic acid supplements. (ekstern lenke)
• Jenssen, Håvard Bjørke; Torsvik, Ingrid Kristin; Ueland, Per Magne et al. (2013). Biochemical signs of impaired cobalamin function do not affect hematological parameters in young infants: results from a double-blind randomized controlled trial. (ekstern lenke)
• Theofylaktopoulou, Despoina; Midttun, Øivind; Ulvik, Arve et al. (2013). A community-based study on determinants of circulating markers of cellular immune activation and kynurenines: the Hordaland Health Study. (ekstern lenke)
• Jung, Audrey Y; Botma, Akke; Lute, Carolien et al. (2012). Plasma B vitamins and LINE-1 DNA methylation in leukocytes of patients with a history of colorectal adenomas. (ekstern lenke)
• Nilsen, Roy Miodini; Monsen, Anne Lise Bjørke; Midttun, Øivind et al. (2012). Maternal tryptophan and kynurenine pathway metabolites and risk of preeclampsia. (ekstern lenke)
• Joubert, Bonnie R.; Håberg, Siri Eldevik; Nilsen, Roy Miodini et al. (2012). 450K epigenome-wide scan identifies differential DNA methylation in newborns related to maternal smoking during pregnancy. (ekstern lenke)
• Galluzzi, Lorenzo; Vitale, Ilio; Senovilla, Laura et al. (2012). Prognostic impact of vitamin B6 metabolism in lung cancer. (ekstern lenke)
• Hustad, Simon Steinar; Eussen, Simone; Midttun, Øivind et al. (2012). Kinetic modeling of storage ffects on biomarkers related to B vitamin status and one-carbon metabolism. (ekstern lenke)
• Christensen, Monika; Pedersen, Eva Kristine Ringdal; Nordbø, Yngve et al. (2012). Vitamin B6 status and interferon-γ-mediated immune activation in primary hyperparathyroidism. (ekstern lenke)
• Leenders, Max; Chuang, Shu-Chun; Dahm, Christina C. et al. (2012). Plasma cotinine levels and pancreatic cancer in the EPIC cohort study. (ekstern lenke)
• Kvalvik, Liv Grimstvedt; Nilsen, Roy Miodini; Skjaerven, Rolv et al. (2012). Self-reported smoking status and plasma cotinine concentrations among pregnant women in the Norwegian Mother and Child Cohort Study. (ekstern lenke)
• Ulvik, Arve; Midttun, Øivind; Pedersen, Eva Kristine Ringdal et al. (2012). Association of plasma B-6 vitamers with systemic markers of inflammation before and after pyridoxine treatment in patients with stable angina pectoris. (ekstern lenke)
• Timofeeva, Maria N.; McKay, James D.; Smith, George Davey et al. (2011). Genetic polymorphisms in 15q25 and 19q13 Loci, cotinine levels, and risk of lung cancer in EPIC. (ekstern lenke)
• Midttun, Øivind; Ulvik, Arve; Pedersen, Eva Kristine Ringdal et al. (2011). Low plasma vitamin B-6 status affects metabolism through the kynurenine pathway in cardiovascular patients with systemic inflammation. (ekstern lenke)
• Chuang, Shu-Chun; Stolzenberg-Solomon, Rachel; Ueland, Per Magne et al. (2011). A U-shaped relationship between plasma folate and pancreatic cancer risk in the European Prospective Investigation into Cancer and Nutrition. (ekstern lenke)
• Midttun, Øivind; Ueland, Per Magne (2011). Determination of vitamins A, D and E in a small volume of human plasma by a high-throughput method based on liquid chromatography/tandem mass spectrometry. (ekstern lenke)
• Pedersen, Eva Kristine Ringdal; Midttun, Øivind; Ueland, Per Magne et al. (2011). Systemic Markers of Interferon-gamma-Mediated Immune Activation and Long-Term Prognosis in Patients With Stable Coronary Artery Disease. (ekstern lenke)
• Vogel, Stefan De; Schneede, Jörn; Ueland, Per Magne et al. (2011). Biomarkers related to one-carbon metabolism as potential risk factors for distal colorectal adenomas. (ekstern lenke)
• Eussen, Simone; Vollset, Stein Emil; Hustad, Simon Steinar et al. (2010). Vitamins B2 and B6 and Genetic Polymorphisms Related to One-Carbon Metabolism as Risk Factors for Gastric Adenocarcinoma in the European Prospective Investigation into Cancer and Nutrition. (ekstern lenke)
• Ulvik, Arve; Ebbing, Marta; Hustad, Steinar et al. (2010). Long- and short-term effects of tobacco smoking on circulating concentrations of B vitamins. (ekstern lenke)
• Eussen, Simone; Vollset, Stein Emil; Hustad, Simon Steinar et al. (2010). Plasma vitamins B2, B6, and B12, and related genetic variants as predictors of colorectal cancer risk. (ekstern lenke)
• Ebbing, M; Bønaa, Kaare Harald; Arnesen, E et al. (2010). Combined analyses and extended follow-up of two randomized controlled homocysteine-lowering B-vitamin trials. (ekstern lenke)
• Johansson, Mattias; Relton, Caroline; Ueland, Per Magne et al. (2010). Serum B vitamin levels and risk of lung cancer. (ekstern lenke)
• Pedersen, Eva Kristine Ringdal; Midttun, Øivind; Ueland, Per Magne et al. (2010). Systemic Markers of Interferon-–Mediated Immune Activation and Long-Term Prognosis in Patients With Stable Coronary Artery Disease. (ekstern lenke)
• Johansson, Mattias; Guelpen, Bethany Van; Vollset, Stein Emil et al. (2009). One-carbon metabolism and prostate cancer risk: prospective investigation of seven circulating B vitamins and metabolites. (ekstern lenke)
• Midttun, Øivind; Hustad, Simon Steinar; Ueland, Per Magne (2009). Quantitative profiling of biomarkers related to B-vitamin status, tryptophan metabolism and inflammation in human plasma by liquid chromatography/tandem mass spectrometry. (ekstern lenke)
• Shaw, Gary M; Carmichael, Susan L; Vollset, Stein Emil et al. (2009). Mid-pregnancy cotinine and risks of orofacial clefts and neural tube defects. (ekstern lenke)
• Figueiredo, Jane C.; Levine, A. Joan; Grau, Maria V. et al. (2008). Vitamins B-2, B-6, and B-12 and risk of new colorectal adenomas in a randomized trial of aspirin use and folic acid supplementation. (ekstern lenke)
• Midttun, Øivind; Hustad, Simon Steinar; Schneede, Jørn et al. (2007). Plasma vitamin B-6 forms and their relation to transsulfuration metabolites in a large, population-based study. (ekstern lenke)
• Ueland, Per Magne; Midttun, Øivind; Windelberg, Amrei et al. (2007). Quantitative profiling of folate and one-carbon metabolism in large-scale epidemiological studies by mass spectrometry. (ekstern lenke)
• Hustad, Simon Steinar; Midttun, Øivind; Schneede, Jørn et al. (2007). The methylenetetrahydrofolate reductase 677C -> T polymorphism as a modulator of a B vitamin network with major effects on homocysteine metabolism. (ekstern lenke)
• Holm, Pål Ivar; Ueland, Per Magne; Vollset, Stein Emil et al. (2005). Betaine and folate status as cooperative determinants of plasma homocysteine in humans. (ekstern lenke)
• Øivind, Midttun Bjørn; Hustad, Simon Steinar; Solheim, Einar et al. (2005). Multianalyte quantification of vitamin B-6 and B-2 species in the nanomolar range in human plasma by liquid chromatography - Tandem mass spectrometry. (ekstern lenke)

Poster

• Ulven, Stine Marie; Christensen, Jacob J.; Nygård, Ottar et al. (2018). Using metabolic profiling to explore molecular effects of replacing saturated fat with polyunsaturated fat- a randomized controlled dietary intervention study. (ekstern lenke)
• Zuo, Hui; Tell, Grethe S.; Ueland, Per Magne et al. (2017). Vitamin B6-related biomarkers and long-term stroke risk: the Hordaland Health Study. (ekstern lenke)
• Pedersen, Eva Ringdal; Tuseth, Nora; Eussen, Simone et al. (2014). Associations of plasma kynurenines with risk of acute myocardial infarction in patients with stable angina pectoris. (ekstern lenke)
• Zuo, Hui; Ueland, Per Magne; Eussen, Simone et al. (2014). Markers of vitamin B6 status and metabolism as predictors of incident cancer: A community-based cohort study. (ekstern lenke)
• Midttun, Øivind; Pedersen, Eva Kristine Ringdal; Ulvik, Arve et al. (2010). Inflammation suggest plasma concentration of 3-hydroxykynurenine as a metabolic marker of vitamin B6 status. (ekstern lenke)
• Pedersen, Eva Kristine Ringdal; Ebbing, Marta; Midttun, Øivind et al. (2007). B6 vitamers as predictors of mortality in patients with stable chest pain. (ekstern lenke)

Vitenskapelig foredrag

• Ulven, Stine Marie; Christensen, Jacob J.; Nygård, Ottar et al. (2018). Using metabolic profiling to explore molecular effects of replacing saturated fat with polyunsaturated fat- a randomized controlled dietary intervention study. (ekstern lenke)
• Midttun, Øivind; Hustad, Simon Steinar; Ueland, Per Magne (2007). A high-throughput method for quantification of riboflavin, vitamin B6 forms, related metabolites and inflammation markers in human plasma by HPLC-MS/MS. (ekstern lenke)
• Pedersen, Eva Kristine Ringdal; Ueland, Per Magne; Vollset, Stein Emil et al. (2007). Total homocysteine, systemic markers of inflammation and long-term mortality in patients with stable angina. (ekstern lenke)

Leserinnlegg

• Mårild, Karl; Vistnes, Maria; Tapia, German et al. (2017). Midpregnancy and cord blood immunologic biomarkers, HLA genotype, and pediatric celiac disease. (ekstern lenke)

Vitenskapelig oversiktsartikkel/review

• Ueland, Per Magne; Mccann, Adrian; Midttun, Øivind et al. (2017). Inflammation, vitamin B6 and related pathways. (ekstern lenke)
• Ueland, Per Magne; Ulvik, Arve; Rios-Avila, Luisa et al. (2015). Direct and functional biomarkers of vitamin B6 status. (ekstern lenke)
• Ueland, Per Magne; Midttun, Øivind; Windelberg, Amrei et al. (2007). Review: Quantitative profiling of folate and one-carbon metabolism in large-scale epidemiological studies by mass spectrometry. (ekstern lenke)

Sammendrag/Abstract

• Pedersen, Eva Kristine Ringdal; Ebbing, Marta; Midttun, Øivind et al. (2008). B6 vitamers and long term mortality in patients with stable angina. (ekstern lenke)
• Pedersen, Eva Kristine Ringdal; Ueland, Per Magne; Vollset, Stein Emil et al. (2008). Homocysteine and markers of immune activation as predictors of mortality in stable angina patients. (ekstern lenke)

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