Vitenskapelig artikkel

• Amandeep Kaur Dhillon; Christian Rupp; Annika Bergquist et al. (2021). Associations of neopterin and kynurenine–tryptophan ratio with survival in primary sclerosing cholangitis. (ekstern lenke)
• Ingrid Valheim Hagen; Anita Helland; Marianne Bratlie 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)
• Bonnie R. Joubert; Siri Eldevik Håberg; Douglas A. Bell et al. (2014). Maternal smoking and DNA methylation in newborns: In utero effect or epigenetic inheritance?. (ekstern lenke)
• Tore Ivar Malmei Aarsland; Ieva Leskauskaite; Øivind Midttun et al. (2019). The effect of electroconvulsive therapy (ECT) on serum tryptophan metabolites. (ekstern lenke)
• Øivind Midttun; Adrian Mccann; Ove Aarseth 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)
• Bonnie R. Joubert; Siri Eldevik Håberg; Roy Miodini Nilsen et al. (2012). 450K epigenome-wide scan identifies differential DNA methylation in newborns related to maternal smoking during pregnancy. (ekstern lenke)
• Tricia L Larose; Florence Guida; Fanidi Anouar et al. (2018). Circulating cotinine concentrations and lung cancer risk in the Lung Cancer Cohort Consortium (LC3). (ekstern lenke)
• Arve Ulvik; Marta Ebbing; Steinar Hustad et al. (2010). Long- and short-term effects of tobacco smoking on circulating concentrations of B vitamins. (ekstern lenke)
• Øivind Midttun; Mary K. Townsend; Ottar Nygård 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)
• Øivind Midttun; Arve Ulvik; Ottar Nygård et al. (2018). Performance of plasma trigonelline as a marker of coffee consumption in an epidemiologic setting. (ekstern lenke)
• Kamila Borowczyk; Justyna Piechocka; Rafał Głowacki 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)
• Øivind Midttun; Simon Steinar Hustad; Per Magne Ueland (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)
• Joanna L Clasen; Alicia K. Heath; Heleen Van Puyvelde 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)
• Ingrid Kristin Torsvik; Per Magne Ueland; Trond Markestad 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)
• Hui Zuo; Ottar Nygård; Per Magne Ueland 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)
• Despoina Theofylaktopoulou; Arve Ulvik; Øivind Midttun 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)
• Anouar Fanidi; David C. Muller; Øivind Midttun 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)
• Hui Zuo; Grethe Seppola Tell; Stein Emil Vollset et al. (2014). Interferon-γ-induced inflammatory markers and the risk of cancer: The Hordaland Health Study. (ekstern lenke)
• Espen Øglænd Bjørnestad; Robert Andre Borsholm; Gard Frodahl Tveitevåg Svingen et al. (2017). Neopterin as an effect modifier of the cardiovascular risk predicted by total homocysteine: A prospective 2-cohort study. (ekstern lenke)
• Maria Vollsæter; Thomas Halvorsen; Trond Markestad et al. (2018). Renal function and blood pressure in 11 year old children born extremely preterm or small for gestational age. (ekstern lenke)
• Mattias Johansson; Caroline Relton; Per Magne Ueland et al. (2010). Serum B vitamin levels and risk of lung cancer. (ekstern lenke)
• Arve Ulvik; Øivind Midttun; Adrian McCann et al. (2019). Tryptophan catabolites as metabolic markers of vitamin B-6 status evaluated in cohorts of healthy adults and cardiovascular patients. (ekstern lenke)
• Leandro Z. Agudelo; Duarte M.S. Ferreira; Igor Cervenka et al. (2018). Kynurenic Acid and Gpr35 Regulate Adipose Tissue Energy Homeostasis and Inflammation. (ekstern lenke)
• Despoina Theofylaktopoulou; Øivind Midttun; Per Magne Ueland et al. (2018). Impaired functional vitamin B6 status is associated with increased risk of lung cancer. (ekstern lenke)
• Giil Lasse Melvær; Øivind Midttun; Helga Refsum et al. (2017). Kynurenine pathway metabolites in Alzheimer's disease. (ekstern lenke)
• Anouar Fanidi; Caroline Relton; Per Magne Ueland et al. (2014). A prospective study of one-carbon metabolism biomarkers and cancer of the head and neck and esophagus. (ekstern lenke)
• Anouar Fanidi; Robert Carreras-Torres; Tricia L Larose et al. (2018). Is high vitamin B12 status a cause of lung cancer?. (ekstern lenke)
• Krasimira Aleksandrova; Shu-Chun Chuang; Heiner Boeing et al. (2015). A prospective study of the immune system activation biomarker neopterin and colorectal cancer risk. (ekstern lenke)
• Hui Zuo; Ottar Nygård; Stein Emil Vollset et al. (2017). Smoking, plasma cotinine and risk of atrial fibrillation: the Hordaland Health Study. (ekstern lenke)
• Iselin Vildmyren; Alfred Halstensen; Adrian McCann et al. (2020). Effect of cod residual protein supplementation on markers of glucose regulation in lean adults: A randomized double-blind study. (ekstern lenke)
• Roy Miodini Nilsen; Anne Lise Bjørke Monsen; Øivind Midttun et al. (2012). Maternal tryptophan and kynurenine pathway metabolites and risk of preeclampsia. (ekstern lenke)
• Maria Christine Magnus; Øystein Karlstad; Øivind Midttun et al. (2016). Maternal plasma total neopterin and kynurenine/tryptophan levels during pregnancy in relation to asthma development in the offspring. (ekstern lenke)
• Lorenzo Galluzzi; Ilio Vitale; Laura Senovilla et al. (2012). Prognostic impact of vitamin B6 metabolism in lung cancer. (ekstern lenke)
• Lieke Bakker; Inez H. G. B. Ramakers; Martin P. J. van Boxtel 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)
• Vegard Lysne; Bodil Bjørndal; Mari Lausund Grinna 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)
• Manjeswori Ulak; Ram Krishna Chandyo; Andrew L. Thorne-Lyman et al. (2016). Vitamin status among breastfed infants in Bhaktapur, Nepal. (ekstern lenke)
• Joyce Y. Huang; Hung N. Luu; Lesley M. Butler et al. (2020). A prospective evaluation of serum methionine-related metabolites in relation to pancreatic cancer risk in two prospective cohort studies. (ekstern lenke)
• Arve Ulvik; Eva Ringdal Pedersen; Gard Frodahl Tveitevåg Svingen et al. (2016). Vitamin B-6 catabolism and long-term mortality risk in patients with coronary artery disease. (ekstern lenke)
• Aslaug Drotningsvik; Øivind Midttun; Linn Anja Slåke Vikøren 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)
• Øivind Midttun; Arve Ulvik; Eva Kristine Ringdal Pedersen et al. (2011). Low plasma vitamin B-6 status affects metabolism through the kynurenine pathway in cardiovascular patients with systemic inflammation. (ekstern lenke)
• Øivind Midttun; Simon Steinar Hustad; Jørn Schneede et al. (2007). Plasma vitamin B-6 forms and their relation to transsulfuration metabolites in a large, population-based study. (ekstern lenke)
• David C. Muller; Mattias Johansson; David Zaridze et al. (2015). Circulating concentrations of vitamin B6 and kidney cancer prognosis: A prospective case-cohort study. (ekstern lenke)
• M Ebbing; Kaare Harald Bønaa; E Arnesen et al. (2010). Combined analyses and extended follow-up of two randomized controlled homocysteine-lowering B-vitamin trials. (ekstern lenke)
• Max Leenders; Shu-Chun Chuang; Christina C. Dahm et al. (2012). Plasma cotinine levels and pancreatic cancer in the EPIC cohort study. (ekstern lenke)
• Barbara N. DeRatt; Maria A. Ralat; Vegard Lysne et al. (2017). Metabolomic evaluation of the consequences of plasma cystathionine elevation in adults with stable angina pectoris. (ekstern lenke)
• Maria Christine Magnus; German Tapia; Sjurdur Frodi Olsen et al. (2018). Parental smoking and risk of childhood-onset type 1 diabetes. (ekstern lenke)
• Øistein Mjelva; Gard Frodahl Tveitevåg Svingen; Eva Ringdal Pedersen et al. (2018). Fibrinogen and Neopterin Is Associated with Future Myocardial Infarction and Total Mortality in Patients with Stable Coronary Artery Disease. (ekstern lenke)
• Ninna Drivsholm; Andreas Knudsen; Maria Faurholt-Jepsen et al. (2021). Alterations in the Kynurenine Pathway of Tryptophan Metabolism Are Associated With Depression in People Living With HIV. (ekstern lenke)
• Daniel Dahlberg; Eduard A. Struys; EE Janssen et al. (2017). Cyst Fluid From Cystic, Malignant Brain Tumors: A Reservoir of Nutrients, Including Growth Factor-Like Nutrients, for Tumor Cells.. (ekstern lenke)
• Stein-Erik Hafstad Solvang; Jan Erik Nordrehaug; Grethe S. Tell et al. (2019). The kynurenine pathway and cognitive performance in community-dwelling older adults. The Hordaland Health Study. (ekstern lenke)
• Øivind Midttun; Arve Ulvik; Klaus Meyer et al. (2023). A cross-sectional study of inflammatory markers as determinants of circulating kynurenines in the Lung Cancer Cohort Consortium. (ekstern lenke)
• Yiyang Yue; Jordan H. Creed; David J. Cote et al. (2021). Pre-diagnostic circulating concentrations of fat-soluble vitamins and risk of glioma in three cohort studies. (ekstern lenke)
• Eirik Degerud; Ottar Nygård; Stefan De Vogel et al. (2018). Plasma 25-hydroxyvitamin D and mortality in patients with suspected stable angina pectoris. (ekstern lenke)
• Ingrid Kvestad; Mari Hysing; Merina Shrestha 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)
• Despoina Theofylaktopoulou; Øivind Midttun; Arve Ulvik et al. (2013). A community-based study on determinants of circulating markers of cellular immune activation and kynurenines: the Hordaland Health Study. (ekstern lenke)
• Oana M. Deac; James L. Mills; Barry Shane et al. (2015). Tryptophan catabolism and vitamin B-6 status are affected by gender and lifestyle factors in healthy young adults. (ekstern lenke)
• Aslaug Drotningsvik; Øivind Midttun; Adrian Mccann 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)
• M Gelpi; Beate Vestad; Sajan Raju 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)
• Björn Gylling; Robin Myte; Arve Ulvik et al. (2019). One-carbon metabolite ratios as functional B-vitamin markers and in relation to colorectal cancer risk. (ekstern lenke)
• Ellen M Apalset; Clara Gram Gjesdal; Per Magne Ueland et al. (2014). Interferon (IFN)-γ-mediated inflammation and the kynurenine pathway in relation to bone mineral density: The Hordaland Health Study. (ekstern lenke)
• Simone Eussen; Roy Miodini Nilsen; Øivind Midttun 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)
• Audrey Y Jung; Akke Botma; Carolien Lute et al. (2012). Plasma B vitamins and LINE-1 DNA methylation in leukocytes of patients with a history of colorectal adenomas. (ekstern lenke)
• Hui Zuo; Per Magne Ueland; Øivind Midttun et al. (2017). Results from the European prospective investigation into cancer and nutrition link vitamin B6 catabolism and lung cancer risk. (ekstern lenke)
• Mattias Johansson; Fanidi Anouar; David C. Muller et al. (2014). Circulating biomarkers of one-carbon metabolism in relation to renal cell carcinoma incidence and survival. (ekstern lenke)
• Stine Marie Ulven; Jacob J. Christensen; Ottar Nygård 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)
• Eva Ringdal Pedersen; Nora Tuseth; Simone Eussen et al. (2015). Associations of plasma kynurenines with risk of acute myocardial infarction in patients with stable angina pectoris. (ekstern lenke)
• Simone Eussen; Stein Emil Vollset; Simon Steinar Hustad et al. (2010). Plasma vitamins B2, B6, and B12, and related genetic variants as predictors of colorectal cancer risk. (ekstern lenke)
• Arne Olav Ervik; Stein-Erik Hafstad Solvang; Jan Erik Nordrehaug et al. (2019). The associations between cognitive prognosis and kynurenines are modified by the apolipoprotein ε4 allele variant in patients with dementia. (ekstern lenke)
• Øivind Midttun; Despoina Theofylaktopoulou; Adrian Mccann 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)
• Marianne Bratlie; Ingrid Valheim Hagen; Anita Helland 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)
• Maria Vistnes; German Tapia; Karl Staffan Mårild 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)
• Linn A. Vikøren; Aslaug Drotningsvik; Øivind Midttun 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)
• Midttun Bjørn Øivind; Simon Steinar Hustad; Einar Solheim 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)
• Sarah E Reese; Shanshan Zhao; Michael C Wu et al. (2016). DNA methylation score as a biomarker in newborns for sustained maternal smoking during pregnancy. (ekstern lenke)
• David C. Muller; Ghislaine Scelo; David Zaridze et al. (2015). Circulating 25-hydroxyvitamin D3 and survival after diagnosis with kidney cancer. (ekstern lenke)
• Audun Skjærseth Hildre; Stein-Erik Hafstad Solvang; Dag Aarsland 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)
• Anita Herrstedt; Marie L Bay; Casper Simonsen et al. (2018). Exercise-mediated improvement of depression in patients with gastro-esophageal junction cancer is linked to kynurenine metabolism. (ekstern lenke)
• Stein-Erik Hafstad Solvang; Jan Erik Nordrehaug; Dag Aarsland et al. (2019). Kynurenines, Neuropsychiatric Symptoms, and Cognitive Prognosis in Patients with Mild Dementia. (ekstern lenke)
• Eva Kristine Ringdal Pedersen; Øivind Midttun; Per Magne Ueland et al. (2011). Systemic Markers of Interferon-gamma-Mediated Immune Activation and Long-Term Prognosis in Patients With Stable Coronary Artery Disease. (ekstern lenke)
• Joyce Y. Huang; Lesley M. Butler; Øivind Midttun 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)
• Hung N. Luu; Pedram Paragomi; Renwei Wang et al. (2022). The Association between Serum Serine and Glycine and Related-Metabolites with Pancreatic Cancer in a Prospective Cohort Study. (ekstern lenke)
• Eirik Wilberg Rebnord; Elin Strand; Øivind Midttun et al. (2017). The kynurenine:tryptophan ratio as a predictor of incident type 2 diabetes mellitus in individuals with coronary artery disease. (ekstern lenke)
• Indu Dhar; Sumia Siddique; Eva Kristine Ringdal Pedersen et al. (2020). Lipid parameters and vitamin A modify cardiovascular risk prediction by plasma neopterin. (ekstern lenke)
• Thomas Olsen; Kathrine Vinknes; Rune Blomhoff et al. (2019). Creatinine, total cysteine and uric acid are associated with serum retinol in patients with cardiovascular disease. (ekstern lenke)
• Joyce Yongxu Huang; Tricia L Larose; Hung N. Luu 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)
• Claudine M. Samanic; Yiyang Yue; David J. Cote et al. (2022). A prospective study of pre-diagnostic circulating tryptophan and kynurenine, and the kynurenine/tryptophan ratio and risk of glioma. (ekstern lenke)
• Hui Zuo; Per Magne Ueland; Arve Ulvik 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)
• Eva Kristine Ringdal Pedersen; Øivind Midttun; Per Magne Ueland et al. (2010). Systemic Markers of Interferon-–Mediated Immune Activation and Long-Term Prognosis in Patients With Stable Coronary Artery Disease. (ekstern lenke)
• Arve Ulvik; Øivind Midttun; Eva Kristine Ringdal Pedersen et al. (2014). Evidence for increased catabolism of vitamin B-6 during systemic inflammation. (ekstern lenke)
• Ellen M Apalset; Clara Gram Gjesdal; Per Magne Ueland 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)
• Thomas Olsen; Kathrine Vinknes; Gard Frodahl Tveitevåg Svingen et al. (2017). Cardiovascular disease risk associated with serum apolipoprotein B is modified by serum vitamin A. (ekstern lenke)
• Gerhard Sulo; Stein Emil Vollset; Ottar Nygård et al. (2013). Neopterin and kynurenine-tryptophan ratio as predictors of coronary events in older adults, the Hordaland Health Study. (ekstern lenke)
• Ingrid Kristin Torsvik; Trond Markestad; Per Magne Ueland et al. (2013). Evaluating iron status and the risk of anemia in young infants using erythrocyte parameters. (ekstern lenke)
• Ingrid Valheim Hagen; Anita Helland; Marianne Bratlie 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)
• Simone Eussen; Stein Emil Vollset; Simon Steinar Hustad 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)
• Arve Ulvik; Simon Steinar Hustad; Adrian Mccann et al. (2017). Ratios of one-carbon metabolites are functional markers of B-vitamin status in a Norwegian coronary angiography screening cohort. (ekstern lenke)
• Eirik Magnus Meek Degerud; Rune Hoff; Ottar Nygård et al. (2015). Cosinor modelling of seasonal variation in 25-hydroxyvitamin D concentrations in cardiovascular patients in Norway. (ekstern lenke)
• Stein-Erik Hafstad Solvang; Allison Hodge; Leiv Watne et al. (2022). Kynurenine Pathway Metabolites in the Blood and Cerebrospinal Fluid Are Associated with Human Aging. (ekstern lenke)
• Bonnie R Joubert; Herman T Den Dekker; Janine F Felix et al. (2016). Maternal plasma folate impacts differential DNA methylation in an epigenome-wide meta-analysis of newborns. (ekstern lenke)
• Hui Zuo; Grethe S. Tell; Per Magne Ueland 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)
• Vanessa R. da Silva; Luisa Rios-Avila; Yvonne Lamers 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)
• Joyce Y. Huang; Lesley M. Butler; Øivind Midttun et al. (2018). A prospective evaluation of serum kynurenine metabolites and risk of pancreatic cancer. (ekstern lenke)
• Mattias Johansson; Bethany Van Guelpen; Stein Emil Vollset et al. (2009). One-carbon metabolism and prostate cancer risk: prospective investigation of seven circulating B vitamins and metabolites. (ekstern lenke)
• Martin Kummen; Louise B. Thingholm; Malte C. Rühlemann et al. (2020). Altered Gut Microbial Metabolism of Essential Nutrients in Primary Sclerosing Cholangitis. (ekstern lenke)
• Jon Sigurd Sande; Arve Ulvik; Øivind Midttun et al. (2019). Vitamin B-6 Status Correlates with Disease Activity in Rheumatoid Arthritis Patients During Treatment with TNFα Inhibitors. (ekstern lenke)
• Monika Christensen; Eva Kristine Ringdal Pedersen; Yngve Nordbø et al. (2012). Vitamin B6 status and interferon-γ-mediated immune activation in primary hyperparathyroidism. (ekstern lenke)
• Valéria Troncoso Baltar; Wei W. Xun; Mattias Johansson et al. (2013). A structural equation modelling approach to explore the role of B vitamins and immune markers in lung cancer risk. (ekstern lenke)
• Per Magne Ueland; Øivind Midttun; Amrei Windelberg et al. (2007). Quantitative profiling of folate and one-carbon metabolism in large-scale epidemiological studies by mass spectrometry. (ekstern lenke)
• Jane C. Figueiredo; A. Joan Levine; Maria V. Grau 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)
• Thomas Olsen; Kathrine Vinknes; Gard Frodahl Tveitevåg Svingen et al. (2018). The risk association of plasma total homocysteine with acute myocardial infarction is modified by serum vitamin A. (ekstern lenke)
• Gary M Shaw; Susan L Carmichael; Stein Emil Vollset et al. (2009). Mid-pregnancy cotinine and risks of orofacial clefts and neural tube defects. (ekstern lenke)
• Pål Ivar Holm; Per Magne Ueland; Stein Emil Vollset et al. (2005). Betaine and folate status as cooperative determinants of plasma homocysteine in humans. (ekstern lenke)
• Anders Lund; Jan Erik Nordrehaug; Grete Slettom et al. (2020). Plasma kynurenines and prognosis in patients with heart failure. (ekstern lenke)
• Vegard Lysne; Elin Strand; Gard Frodahl Tveitevåg Svingen et al. (2016). Peroxisome Proliferator-Activated Receptor Activation is Associated with Altered Plasma One-Carbon Metabolites and B-Vitamin Status in Rats. (ekstern lenke)
• Jannike Øyen; Clara Gram Gjesdal; Ottar Nygård et al. (2014). Smoking and body fat mass in relation to bone mineral density and hip fracture: The Hordaland Health Study. (ekstern lenke)
• Tonia C. Carter; Faith Pangilinan; Anne M. Molloy 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)
• Arve Ulvik; Øivind Midttun; Eva Kristine Ringdal Pedersen 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)
• Julie K. Bassett; Maree T. Brinkman; Pierre-Antoine Dugué et al. (2018). Circulating concentrations of B group vitamins and urothelial cell carcinoma. (ekstern lenke)
• David C. Muller; Tricia L Larose; Allison Hodge 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)
• David C Muller; Anouar Fanidi; Øivind Midttun et al. (2014). Circulating 25-hydroxyvitamin D3 in relation to renal cell carcinoma incidence and survival in the EPIC cohort. (ekstern lenke)
• Simon Steinar Hustad; Øivind Midttun; Jørn Schneede 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)
• Marianne Bratlie; Ingrid Valheim Hagen; Anita Helland 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)
• Anne Lise Bjørke Monsen; Arve Ulvik; Roy Miodini Nilsen et al. (2016). Impact of Pre-Pregnancy BMI on B Vitamin and Inflammatory Status in Early Pregnancy: An Observational Cohort Study. (ekstern lenke)
• Hui Zuo; Per Magne Ueland; Simone Eussen et al. (2015). Markers of vitamin B6 status and metabolism as predictors of incident cancer: The Hordaland Health Study. (ekstern lenke)
• Adrian Mccann; Øivind Midttun; Kyly C. Whitfield et al. (2017). Comparable performance characteristics of plasma thiamine and erythrocyte thiamine diphosphate in response to thiamine fortification in rural cambodian women. (ekstern lenke)
• Marco Gelpi; Per Magne Ueland; Marius Trøseid 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)
• Maria N. Timofeeva; James D. McKay; George Davey Smith et al. (2011). Genetic polymorphisms in 15q25 and 19q13 Loci, cotinine levels, and risk of lung cancer in EPIC. (ekstern lenke)
• Therese Karlsson; Elin Strand; Jutta Dierkes 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)
• Hui Zuo; Per Magne Ueland; Øivind Midttun et al. (2019). Vitamin B6 catabolism and lung cancer risk: Results from the Lung Cancer Cohort Consortium (LC3). (ekstern lenke)
• Anita Helland; Marianne Bratlie; Ingrid Valheim Hagen et al. (2022). Consumption of a light meal affects serum concentrations of one-carbon metabolites and B-vitamins. A clinical intervention study. (ekstern lenke)
• David C. Muller; Allison M. Hodge; Anouar Fanidi 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)
• Elizabeth L. Cope; Martha J. Shrubsole; Sarah S. Cohen et al. (2013). Intraindividual variation in one-carbon metabolism plasma biomarkers. (ekstern lenke)
• Elisabet Söderström; Torbjörn K. Nilsson; Jörn Schneede et al. (2021). Plasma cotinine is positively associated with homocysteine in smokers but not in users of smokeless tobacco. (ekstern lenke)
• Simon Steinar Hustad; Simone Eussen; Øivind Midttun et al. (2012). Kinetic modeling of storage ffects on biomarkers related to B vitamin status and one-carbon metabolism. (ekstern lenke)
• Arve Ulvik; Despoina Theofylaktopoulou; Øivind Midttun 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)
• Sarala Banjara; Ellen Berggreen; Jannicke Igland 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)
• Anne Lise Bjørke Monsen; Christine Roth; Per Magnus et al. (2013). Maternal B vitamin status in pregnancy week 18 according to reported use of folic acid supplements. (ekstern lenke)
• Shu-Chun Chuang; Rachel Stolzenberg-Solomon; Per Magne Ueland 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)
• Oana M. Deac; James L. Mills; Clair M. Gardiner et al. (2016). Serum immune system biomarkers neopterin and interleukin-10 are strongly related to tryptophan metabolism in healthy young adults. (ekstern lenke)
• Øivind Midttun; Per Magne Ueland (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)
• Anita Helland; Marianne Bratlie; Ingrid Valheim Hagen et al. (2021). Effect of high intake of cod or salmon on serum total neopterin concentration: a randomised clinical trial. (ekstern lenke)
• Liv Grimstvedt Kvalvik; Roy Miodini Nilsen; Rolv Skjaerven et al. (2012). Self-reported smoking status and plasma cotinine concentrations among pregnant women in the Norwegian Mother and Child Cohort Study. (ekstern lenke)
• Eli Skeie; Elin Strand; Eva Ringdal Pedersen 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)
• Sherly X. Li; Allison M. Hodge; Robert J. MacInnis et al. (2021). Inflammation-related marker profiling of dietary patterns and all-cause mortality in the melbourne collaborative cohort study. (ekstern lenke)
• Pedram Paragomi; Renwei Wang; Joyce Y. Huang et al. (2023). The Association between Serum Riboflavin and Flavin Mononucleotide with Pancreatic Cancer: Findings from a Prospective Cohort Study. (ekstern lenke)
• Håvard Bjørke Jenssen; Ingrid Kristin Torsvik; Per Magne Ueland 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)
• Else Quist-Paulsen; Pål Aukrust; Anne-Marte Bakken Kran 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)
• Stefan De Vogel; Jörn Schneede; Per Magne Ueland et al. (2011). Biomarkers related to one-carbon metabolism as potential risk factors for distal colorectal adenomas. (ekstern lenke)
• Karl Staffan Mårild; German Tapia; Øivind Midttun et al. (2019). Smoking in pregnancy, cord blood cotinine and risk of celiac disease diagnosis in offspring. (ekstern lenke)
• Lovisa Widbom; Jørn Schneede; Øivind Midttun et al. (2020). Elevated plasma cotinine is associated with an increased risk of developing IBD, especially among users of combusted tobacco. (ekstern lenke)
• Luisa Rios-Avila; Bonnie Coats; Maria Ralat 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)
• Julie C. Gaardbo; Marius Trøseid; Birgitte Stiksrud 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)
• Claire E. Thomas; Renwei Wang; Jennifer Adams-Haduch et al. (2020). Urinary cotinine is as good a biomarker as serum cotinine for cigarette smoking exposure and lung cancer risk prediction. (ekstern lenke)
• Luisa Rios-Avila; Bonnie Coats; Yueh-Yun Chi 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)
• Monika Christensen; Dag Jone Stokke Fadnes; Therese Halvorsen Røst et al. (2018). Inflammatory markers, the tryptophan-kynurenine pathway, and Vitamin B status after bariatric surgery. (ekstern lenke)
• Shu-Chun Chuang; Heiner Boeing; Stein Emil Vollset et al. (2016). Cellular immune activity biomarker neopterin is associated hyperlipidemia: results from a large population-based study. (ekstern lenke)
• Shu-Chun Chuang; Anouar Fanidi; Per Magne Ueland et al. (2014). Circulating biomarkers of tryptophan and the kynurenine pathway and lung cancer risk. (ekstern lenke)
• Simone Eussen; Per Magne Ueland; Stein Emil Vollset et al. (2015). Kynurenines as predictors of acute coronary events in the Hordaland Health Study. (ekstern lenke)

Konferanseposter

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

Vitenskapelig litteraturgjennomgang

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

Konferanseforedrag

• Stine Marie Ulven; Jacob J. Christensen; Ottar Nygård 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)
• Øivind Midttun; Simon Steinar Hustad; Per Magne Ueland (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)
• Eva Kristine Ringdal Pedersen; Per Magne Ueland; Stein Emil Vollset et al. (2007). Total homocysteine, systemic markers of inflammation and long-term mortality in patients with stable angina. (ekstern lenke)

Konferanseabstrakt

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

Leserbrev

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

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