Academic article

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• Ida Heir Hovland; Ingrid Sande Leikanger; Oddbjørg Stokkeland et al. (2019). Effects of low doses of fish and milk proteins on glucose regulation and markers of insulin sensitivity in overweight adults: a randomised, double blind study. (external link)
• 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. (external link)
• Elisabeth Toverud Landaas; Tor-Arne Hegvik; Anne Halmøy et al. (2015). Serum concentrations of kynurenines in adult patients with attention-deficit hyperactivity disorder (ADHD): a case–control study. (external link)
• Ingvar Bjelland; Grethe S Tell; Stein Emil Vollset et al. (2009). Choline in anxiety and depression: the Hordaland Health Study. (external link)
• Jannike Øyen; Ottar Nygård; Clara Gram Gjesdal et al. (2014). Plasma choline, nicotine exposure, and risk of low bone mineral density and hip fracture: the Hordaland Health Study. (external link)
• 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. (external link)
• Ø. Andreassen; I. Lie; C. E. Wasberg et al. (1994). The spectral viscosity method applied to simulation of waves in stratified atmosphere. (external link)
• Helga Refsum; Eha Nurk; A.D. Smith et al. (2006). The hordaland homocysteine study: A community-based study of homocysteine, its determinants, and associations with disease. (external link)
• Anne Berit Guttormsen; Per Magne Ueland; Per Eystein Lønning et al. (1998). Kinetics of total plasma homocysteine during basal conditions. (external link)
• 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. (external link)
• Elizabeth L. Cope; Martha J. Shrubsole; Sarah S. Cohen et al. (2013). Intraindividual variation in one-carbon metabolism plasma biomarkers. (external link)
• 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. (external link)
• Svetlana Konstantinova; Grethe S Tell; Stein Emil Vollset et al. (2008). Dietary patterns, food groups, and nutrients as predictors of plasma choline and betaine in middle-aged and elderly men and women. (external link)
• Mads Malm Svenningsson; Gard Frodahl Tveitevåg Svingen; Vegard Lysne et al. (2020). Transsulfuration metabolites and the association with incident atrial fibrillation – An observational cohort study among Norwegian patients with stable angina pectoris. (external link)
• 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. (external link)
• Mattias Johansson; Paul N. Appleby; Naomi E. Allen et al. (2008). Circulating concentrations of folate and vitamin B-12 in relation to prostate cancer risk: Results from the European Prospective Investigation into Cancer and Nutrition study. (external link)
• 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. (external link)
• 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. (external link)
• Øyvind Bleie; Elin Strand; Per Magne Ueland et al. (2007). Changes in Atherosclerotic Plaque Volume Measured with Intracoronary Ultrasound during B-vitamin Intervention (a WENBIT substudy). (external link)
• Anne J.M.R. Geijsen; Eline H. van Roekel; Fränzel J.B. van Duijnhoven et al. (2019). Plasma metabolites associated with colorectal cancer stage: Findings from an international consortium. (external link)
• Anne J.M.R. Geijsen; Stefanie Brezina; Pekka Keski-Rahkonen et al. (2019). Plasma metabolites associated with colorectal cancer: A discovery-replication strategy. (external link)
• A. Mansoor; Anne Berit Guttormsen; T. Fiskerstrand et al. (1993). Redox status and Protein-binding of aminothiols during the transient hyperhomocysteinemia that follows homocysteine administration. (external link)
• 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. (external link)
• Robert Clarke; Paul Sherliker; Harold Hin et al. (2008). Folate and vitamin B-12 status in relation to cognitive impairment and anaemia in the setting of voluntary fortification in the UK. (external link)
• 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. (external link)
• Christian Storm; Oliver Danne; Per Magne Ueland et al. (2013). Serial plasma choline measurements after cardiac arrest in patients undergoing mild therapeutic hypothermia: a prospective observational pilot trial. (external link)
• Olalla Bueno; Anne M. Molloy; Joan D. Fernandez-Ballart et al. (2016). Common polymorphisms that affect folate transport or metabolism modify the effect of the MTHFR 677C > T polymorphism on folate status. (external link)
• 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. (external link)
• Anne Berit Guttormsen; Jørn Schneede; Torunn Fiskerstrand et al. (1994). Plasma concentrations of homocysteine and other aminothiol compounds are related to food intake in healthy human subjects. (external link)
• Martin Kummen; Louise B. Thingholm; Malte C. Rühlemann et al. (2020). Altered Gut Microbial Metabolism of Essential Nutrients in Primary Sclerosing Cholangitis. (external link)
• Ralph Green; Lindsay H. Allen; Anne Lise Bjørke Monsen et al. (2017). Vitamin B12 deficiency. (external link)
• Björn Gylling; Robin Myte; Jørn Schneede et al. (2017). Vitamin B-6 and colorectal cancer risk: A prospective population-based study using 3 distinct plasma markers of Vitamin B-6 status. (external link)
• 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. (external link)
• Giil Lasse Melvær; Silja Hanseth; Ognjen Bojovic et al. (2023). The inverse association between the apolipoprotein E ε4 allele and C-reactive protein levels is stronger in persons with obesity and diabetes. (external link)
• Grethe Tell; Eha Nurk; Stein Emil Vollset et al. (2001). Plasma total homocystein and hospitalizations for cardiovascular disease: The Hordaland Homocysteine Study. (external link)
• 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. (external link)
• 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. (external link)
• Christine Louise Parr; Maria Christine Magnus; Øystein Karlstad et al. (2018). Vitamin A and D intake in pregnancy, infant supplementation, and asthma development: The Norwegian Mother and Child Cohort. (external link)
• Irit Titlestad; Leiv Watne; Gideon A. Caplan et al. (2023). Impaired glucose utilization in the brain of patients with delirium following hip fracture. (external link)
• Anne Berit Guttormsen; A. Mansoor; T. Fiskerstrand et al. (1993). Kinetics of plasma homocysteine in healthy subjects after peroral homocysteine loading. (external link)
• Jørn Schneede; Per Magne Ueland (1993). Automated assay for methylmalonic acid in serum and urine based on derivation with 1-pyrenyldiazomethane, liquid chromatography and fluorescence detection. (external link)
• Jannike Øyen; Clara Gram Gjesdal; Therese Karlsson et al. (2017). Dietary choline intake is directly associated with bone mineral density in the Hordaland Health Study. (external link)
• Simon Steinar Hustad; Bjørn Gunnar Nedrebø; Per Magne Ueland et al. (2004). Phenotypic expression of the methylenetetrahydrofolate reductase 677C->T polymorphism and flavine cofactor availability in thyroid dysfunction. (external link)
• 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. (external link)
• Monika Christensen; Eva Kristine Ringdal Pedersen; Yngve Nordbø et al. (2012). Vitamin B6 status and interferon-γ-mediated immune activation in primary hyperparathyroidism. (external link)
• 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. (external link)
• Astrid Bjørke Jenssen; Per Magne Ueland; Anne Lise Bjørke Monsen (2017). Amniotic fluid arginine from gestational weeks 13 to 15 is a predictor of birth weight, length, and head circumference. (external link)
• Roy Miodini Nilsen; Pierpaolo Mastroiacovo; Nina Gunnes et al. (2014). Folic acid supplementation and interpregnancy interval. (external link)
• 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. (external link)
• David C. Muller; Mattias Johansson; David Zaridze et al. (2015). Circulating concentrations of vitamin B6 and kidney cancer prognosis: A prospective case-cohort study. (external link)
• Jørn Schneede; P. C. Dagnelie; Helga Refsum et al. (1994). Nutritional cobalamin deficiency in infants. (external link)
• 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. (external link)
• Espen Øglænd Bjørnestad; Hilde Olset; Indu Dhar et al. (2020). Circulating trimethyllysine and risk of acute myocardial infarction in patients with suspected stable coronary heart disease. (external link)
• B. Christensen; Anne Berit Guttormsen; Jørn Schneede et al. (1994). Preoperative Methionine loading enhances restoration of the cobalamin-dependent enzyme methionine synthase after nitrous oxide anesthesia. (external link)
• Eirik Wilberg Rebnord; Eva Ringdal Pedersen; Elin Strand et al. (2015). Glycated hemoglobin and long-term prognosis in patients with suspected stable angina pectoris without diabetes mellitus: A prospective cohort study.. (external link)
• Jørn Schneede; P. C. Dagnelie; W. A. van Staveren et al. (1994). Methylmalonic acid and homocysteine in plasma as indicators of functional cobalamin deficiency in infants on macrobiotic diets. (external link)
• Jørn Schneede; J. H. Mortensen; G. Kvalheim et al. (1994). Zone electrophoresis with laser-induced fluorescense detection for analysis of methylmalonic acid and other short-chain dicarboxylic acids derivatized with 1-Pyrenyldiazomethane. (external link)
• T. Fiskerstrand; B. Christensen; Ole-Bjørn Tysnes et al. (1994). Development of methionine dependence in a human glioma cell line. Relation to homocysteine remethylation and cobalamin status. (external link)
• Anne Berit Guttormsen; Helga Refsum; Per Magne Ueland (1994). The interaction between nitrous oxide and cobalamin. Biochemical effects and clinical consequences. (external link)
• 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. (external link)
• Pål Ivar Holm; Øyvind Bleie; Per Magne Ueland et al. (2004). Betaine as a determinant of postmethionine load total plasma homocysteine before and after B-vitamin supplementation. (external link)
• Simone Eussen; Per Magne Ueland; Gert Jan Hiddink et al. (2008). Changes in markers of cobalamin status after cessation of oral B-vitamin supplements in elderly people with mild cobalamin deficiency. (external link)
• Jie Gao; Arve Ulvik; Adrian McCann et al. (2021). Microheterogeneity and preanalytical stability of protein biomarkers of inflammation and renal function. (external link)
• Anne-Brita Knapskog; Trine Holt Edwin; Per Magne Ueland et al. (2024). Sex-specific associations of kynurenic acid with neopterin in Alzheimer’s disease. (external link)
• Marianne Grønlie Guren; Jørn Schneede; Kjell Magne Tveit et al. (2004). Biochemical signs of impaired cobalamin status during and after radiotherapy for rectal cancer. (external link)
• 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. (external link)
• Eha Nurk; Helga Refsum; Grete S Tell et al. (2006). Factor V Leiden, pregnancy complications and adverse outcomes: the Hordaland Homocysteine Study. (external link)
• Tor A Strand; Sunita Taneja; Per Magne Ueland et al. (2013). Cobalamin and folate status predicts mental development scores in North Indian children 12-18 mo of age. (external link)
• Kjetil Halvorsen Løland; Øyvind Bleie; Heidi Borgeraas et al. (2013). The association between progression of atherosclerosis and the methylated amino acids asymmetric dimethylarginine and trimethyllysine. (external link)
• 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. (external link)
• Anne Lise Bjørke-Monsen; Thomas Halvorsen; Øyvind Midttun et al. (2013). Increased inflammatory markers in adolescents born extremely preterm and small for gestational age. (external link)
• 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. (external link)
• A. Joan Levine; Kristin Wallace; Shirley Tsang et al. (2008). MTHFR genotype and colorectal adenoma recurrence: Data from a double-blind placebo-controlled clinical trial. (external link)
• Adrian McCann; Dag Aarsland; Per Magne Ueland et al. (2021). Serum tyrosine is associated with better cognition in Lewy body dementia. (external link)
• 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. (external link)
• Beate Stokke Solvik; Kjersti Sletten Bakken; Adrian McCann et al. (2024). Breastfeeding and biomarkers of folate and cobalamin status in Norwegian infants: A cross-sectional study. (external link)
• Jane C. Figueiredo; A. Joan Levine; Maria V. Grau et al. (2008). Colorectal adenomas in a randomized folate trial: The role of baseline dietary and circulating folate levels. (external link)
• G Holleland; Jørn Schneede; Per Magne Ueland et al. (1999). Cobalamin deficiency in general practice. Assessment of the diagnostic utility and cost-benefit analysis of methylmalonic acid determination in relation to current diagnostic strategies. (external link)
• 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. (external link)
• Anne-Lise Bjørke Monsen; Marte-Helene Bjørk; Anette Storstein et al. (2022). Severe Hyperhomocysteinemia in a Patient with Parkinson Disease. (external link)
• Anne Lise Bjørke Monsen; Per Magne Ueland (2011). Cobalamin status in children. (external link)
• Per Magne Ueland (2011). Choline and betaine in health and disease. (external link)
• Gard Frodahl Tveitevåg Svingen; Per Magne Ueland; Eva Kristine Ringdal Pedersen et al. (2013). Plasma dimethylglycine and risk of incident acute myocardial infarction in patients with stable angina pectoris. (external link)
• 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. (external link)
• B. Christensen; Anne Berit Guttormsen; J. Schneede et al. (1994). Preoperative Methionine loading enhances restoration of the cobalamin-dependent enzyme methionine synthase after nitrous oxide anesthesia. (external link)
• Ø. Andreassen; I. Lie; C. E. Wasberg et al. (1994). The spectral viscosity method applied to simulation of waves in stratified atmosphere. (external link)
• 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. (external link)
• Jessica O'Reilly; Faith Pangilinan; Karsten Hokamp et al. (2018). The impact of common genetic variants in the mitochondrial glycine cleavage system on relevant metabolites. (external link)
• 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. (external link)
• Ingrid Kvestad; Adrian McCann; Ram K. Chandyo et al. (2021). One-Carbon Metabolism in Nepalese Infant-Mother Pairs and Child Cognition at 5 Years Old. (external link)
• Gary M Shaw; Susan L Carmichael; Stein Emil Vollset et al. (2009). Mid-pregnancy cotinine and risks of orofacial clefts and neural tube defects. (external link)
• Jørn Schneede; P. C. Dagnelie; W. A. van Staveren et al. (1994). Methylmalonic acid and homocysteine in plasma as indicators of functional cobalamin deficiency in infants on macrobiotic diets. (external link)
• Jørn Schneede; P. C. Dagnelie; W. A. van Staveren et al. (1994). Methylmalonic acid and homocysteine in plasma as indicators of functional cobalamin deficiency in infants on macrobiotic diets. (external link)
• Judy R. Rees; Carolyn B. Morris; Janet L. Peacock et al. (2017). Unmetabolized folic acid, tetrahydrofolate, and colorectal adenoma risk. (external link)
• Ram Krishna Chandyo; Manjeswori Ulak; Halvor Sommerfelt et al. (2016). Nutritional intake and status of cobalamin and folate among non-pregnant women of reproductive age in Bhaktapur, Nepal. (external link)
• 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. (external link)
• Kjetil Halvorsen Løland; Øyvind Bleie; Are Jordahl Blix et al. (2010). Effect of homocysteine-lowering B vitamin treatment on angiographic progression of coronary artery disease: a western Norway B vitamin intervention trial (WENBIT) substudy. (external link)
• R.K. Price; E. M. Keaveney; L. L. Hamill et al. (2010). Consumption of Wheat Aleurone-Rich Foods Increases Fasting Plasma Betaine and Modestly Decreases Fasting Homocysteine and LDL-Cholesterol in Adults. (external link)
• Klaus Meyer; Per Magne Ueland (2014). Targeted quantification of C-Reactive protein and cystatin C and its variants by immuno-MALDI-MS. (external link)
• Øystein Fluge; Olav Mella; Ove Bruland et al. (2016). Metabolic profiling indicates impaired pyruvate dehydrogenase function in myalgic encephalopathy/chronic fatigue syndrome.. (external link)
• Harold Hin; Robert Clarke; Paul Sherliker et al. (2006). Clinical relevance of low serum vitamin B12 concentrations in older people: the Banbury B12 study. (external link)
• Beate Stokke Solvik; Jannike Øyen; Ingrid Kvestad et al. (2021). Biomarkers and Fatty Fish Intake: A Randomized Controlled Trial in Norwegian Preschool Children. (external link)
• 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.. (external link)
• Rita Hannisdal; Randi Elin Gislefoss; Tom K. Grimsrud et al. (2010). Analytical Recovery of Folate and Its Degradation Products in Human Serum Stored at-25 degrees C for up to 29 Years. (external link)
• Michelle M. Murphy; Anne M. Molloy; Per Magne Ueland et al. (2007). Longitudinal study of the effect of pregnancy on maternal and fetal cobalamin status in healthy women and their offspring. (external link)
• Mathilde Hjelle Nitter; Benedicte Wentzel Norgård; Stefan De Vogel et al. (2014). Plasma methionine, choline, betaine, and dimethylglycine in relation to colorectal cancer risk in the European Prospective Investigation into Cancer and Nutrition (EPIC). (external link)
• Leiv Otto Watne; Christian Thomas Pollmann; Bjørn Erik Neerland et al. (2022). Cerebrospinal fluid quinolinic acid is strongly associated with delirium and mortality in hip-fracture patients. (external link)
• Beate Stokke Solvik; Tor A Strand; Ingrid Kvestad et al. (2020). Dietary intake and biomarkers of folate and cobalamin status in Norwegian preschool children: The FINS-KIDS Study. (external link)
• 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.. (external link)
• Francien V. Velzing-Aarts; Pål Ivar Holm; M. Rebecca Fokkema et al. (2005). Plasma choline and betaine and their relation to plasma homocysteine in normal pregnancy. (external link)
• Max Leenders; Shu-Chun Chuang; Christina C. Dahm et al. (2012). Plasma cotinine levels and pancreatic cancer in the EPIC cohort study. (external link)
• A. A. M. Ermens; Helga Refsum; J. Rupreht et al. (1991). Monitoring cobalamin inactivation during nitrous oxide anesthesia by determination of homocysteine and folate in plasma and urine. (external link)
• Ram Krishna Chandyo; Manjeswori Ulak; Ingrid Kvestad et al. (2018). Cobalamin and folate status among breastfed infants in Bhaktapur, Nepal. (external link)
• Simone J.P.M. Eussen; Lisette C.P.G.M. de Groot; Robert Clarke et al. (2005). Oral cyanocobalamin supplementation in older people with vitamin B-12 deficiency - A dose-finding trial. (external link)
• Anna Vogiatzoglou; Abderrahim Oulhaj; David Smith et al. (2009). Determinants of plasma methylmalonic acid in a large population: implications for assessment of vitamin B12 status. (external link)
• Pål Ivar Holm; Per Magne Ueland; Stein Emil Vollset et al. (2005). Betaine and folate status as cooperative determinants of plasma homocysteine in humans. (external link)
• 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. (external link)
• Per Magne Ueland; Pål Ivar Holm; Simon Steinar Hustad (2005). Betaine: a key modulator of one-carbon metabolism and homocysteine status. (external link)
• Edward Valente; John M. Scott; Per Magne Ueland et al. (2011). Diagnostic accuracy of holotranscobalamin, methylmalonic acid, serum cobalamin, and other indicators of tissue vitamin B-12 status in the elderly. (external link)
• Alison J. Price; Ruth C. Travis; Paul N. Appleby et al. (2016). Circulating folate and vitamin B12 and risk of prostate cancer: a collaborative analysis of individual participant data from six cohorts including 6875 cases and 8104 controls. (external link)
• Arve Ulvik; Stein Emil Vollset; Svein Hansen et al. (2004). Colorectal cancer and the methylenetetrahydrofolate 677C->T and methionine synthase 2756A->G polymorphism. A study of 2168 case-control pairs from the Janus cohort. (external link)
• Asbjørn M. Svardal; Per Magne Ueland; Rolf Kristian Berge et al. (1988). Effect of methotrexate on homocysteine and other sulfur compounds in tissues of rats fed a normal or a defined, choline-deficient diet. (external link)
• 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. (external link)
• Rune Djurhuus; Asbjørn M. Svardal; Per Magne Ueland (1989). Differential effects on growth, homocysteine, and related compounds of two inhibitors of S-adenosylhomocysteine catabolism, 3-deazaadenosine, and 3-deazaaristeromycin, in C3H/10T1/2 cells. (external link)
• Niels Aarsaether; A. Aarsland; H Kryvi et al. (1989). Changes in peroxisomes and mitochondria in liver of ethionine exposed rats: a biochemical and morphological investigation. (external link)
• Rolf Kristian Berge; Niels Aarsaether; A. Aarsland et al. (1988). Effect of choline-deficiency and methotrexate administration on peroxisomal beta-oxidation, palmitoyl-CoA hydrolase activity and the glutathione content in rat liver. (external link)
• Asbjørn M. Svardal; Helga Refsum; Per Magne Ueland (1986). Determination of in vivo protein binding of homocysteine and its relation to free homocysteine in the liver and other tissues of the rat. (external link)
• 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. (external link)
• Marta Ebbing; Øyvind Bleie; O Bleie et al. (2008). Mortality and cardiovascular events in patients treated with homocysteine-lowering B vitamins after coronary angiography - A Randomized controlled trial. (external link)
• Anne Brita Knapskog; Mari Aksnes; Trine Holt Edwin et al. (2023). Higher concentrations of kynurenic acid in CSF are associated with the slower clinical progression of Alzheimer's disease. (external link)
• Nathalie S. Shenker; Per Magne Ueland; Silvia Polidoro et al. (2013). DNA methylation as a long-term biomarker of exposure to tobacco Smoke. (external link)
• Silje Fjellgård Jørgensen; Peder Rustøen Braadland; Thor Ueland et al. (2025). Tryptophan–kynurenine metabolites associate with inflammation and immunologic phenotypes in common variable immunodeficiency. (external link)
• 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. (external link)
• 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. (external link)
• Jørn Schneede; Per Magne Ueland (2005). Novel and established markers of cobalamin deficiency: complementary or exclusive diagnostic strategies. (external link)
• Bettina Riedel; Anne Lise Bjørke Monsen; Per Magne Ueland et al. (2005). Effects of oral contraceptives and hormone replacement therapy on markers of cobalamin status. (external link)
• Robin Myte; Björn Gylling; Jenny Häggström et al. (2018). One-carbon metabolism biomarkers and genetic variants in relation to colorectal cancer risk by KRAS and BRAF mutation status. (external link)
• Asbjørn M. Svardal; Per Magne Ueland; Niels Aarsaether et al. (1988). Differential metabolic response of rat liver, kidney and spleen to ethionine exposure. S-adenosylamino acids, homocysteine and reduced glutathione in tissues. (external link)
• Asbjørn M. Svardal; Rune Djurhuus; Helga Refsum et al. (1986). Disposition of homocysteine in rat hepatocytes and in nontransformed and malignant mouse embryo fibroblasts following exposure to inhibitors of S-adenosylhomocysteine catabolism. (external link)
• Bernard F. Cole; John A. Baron; Robert S. Sandler et al. (2007). Folic acid for the prevention of colorectal adenomas - A randomized clinical trial. (external link)
• Alida Melse-Boonstra; Pål Ivar Holm; Per Magne Ueland et al. (2005). Betaine concentration as a determinant of fasting total homocysteine concentrations and the effect of folic acid supplementation on betaine concentrations. (external link)
• Asbjørn M. Svardal; Per Magne Ueland (1987). Compartmentalization of S-adenosylhomocysteine in rat liver. Determination and characterization of the in vivo protein binding. (external link)
• Asbjørn M. Svardal; Rune Djurhuus; Per Magne Ueland (1986). Disposition of homocysteine and S-3-deazaadenosylhomocysteine in cells exposed to 3-deazaadenosine. (external link)
• Niels Aarsaether; Rolf Kristian Berge; Astrid Mette Husøy et al. (1988). Ethionine-induced alterations of enzymes involved in lipid metabolism and their possible relationship to induction of fatty liver. (external link)
• Niels Aarsaether; Rolf Kristian Berge; A. Aarsland et al. (1988). Effect of methotrexate on long-chain fatty acid metabolism in liver of rats fed a standard or a defined, choline-deficient diet. (external link)
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• 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. (external link)
• Anne-Lise Bjørke Monsen; Kristin Varsi; Sunniva Todnem Sakkestad et al. (2023). Lower levels of the neuroprotective tryptophan metabolite, kynurenic acid, in users of estrogen contraceptives. (external link)
• Julie K. Bassett; Maree T. Brinkman; Pierre-Antoine Dugué et al. (2018). Circulating concentrations of B group vitamins and urothelial cell carcinoma. (external link)
• 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. (external link)
• Helga Refsum; Ottar Nygård; Gunnar Kvåle et al. (1996). The Hordaland homocysteine study: The opposite tails odds ratios (OTOR) reveal differential effects og gender and intake of vitamin supplements at high and low plasma homocysteine concentrations. (external link)
• Anne-Lise Bjørke Monsen; Stein Emil Vollset; Helga Refsum et al. (2004). Hematological parameters and cobalamin status in infants born to smoking mothers. (external link)
• Bjørn Gunnar Nedrebø; Steinar Hustad; Jørn Schneede et al. (2003). Homocysteine and its relations to B-vitamins and smoking in graves' disease before and after treatment. (external link)
• Birgitte Stiksrud; Kristina Berg Lorvik; Dag Kvale et al. (2016). Plasma IP-10 is increased in immunological nonresponders and associated with activated regulatory T cells and persisting low CD4 counts. (external link)
• Anne Berit Guttormsen; Per Magne Ueland; I Nesthus et al. (1996). Determinants and vitamin responsiveness of the intermediate homohypercysteinemia (> 40 _mmol/L). The Hordaland homocysteine study. (external link)
• Helga Bergljot Midtbø; Arve Ulvik; Dana Cramariuc et al. (2024). Influence of cardiorespiratory fitness on obesity-associated inflammation in women and men: The FATCOR study. (external link)
• Christine Roth; Anne Lise Bjørke Monsen; Ted Reichborn-Kjennerud et al. (2013). Use of folic acid supplements in early pregnancy in relation to maternal plasma levels in week 18 of pregnancy. (external link)
• 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. (external link)
• Gun Birgitta Anker; Helga Refsum; Per Magne Ueland et al. (1999). Influence of aromatase inhibitors on plasma total homocysteine levels in postmenopausal breast cancer patients. (external link)
• 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. (external link)
• Eha Nurk; Grethe S Tell; Helga Refsum et al. (2004). Associations between maternal methylenetetrahydrofolate reductase polymorhpisms and adverse outcomes of pregnancy: The Hordaland Homocysteine Study. (external link)
• Eha Nurk; Grethe S Tell; Stein Emil Vollset et al. (2004). Changes in lifestyle and plasma total homocysteine. The Hordaland Homocysteine Study. (external link)
• Christine Louise Parr; Maria Christine Magnus; Øystein Karlstad et al. (2017). Maternal folate intake during pregnancy and childhood asthma in a population-based cohort. (external link)
• André Hesselink; Anna Winkvist; Bernt Lindahl et al. (2023). Healthy Nordic diet and associations with plasma concentrations of metabolites in the choline oxidation pathway: a cross-sectional study from Northern Sweden. (external link)
• Gard Frodahl Tveitevåg Svingen; Hui Zuo; Per Magne Ueland et al. (2018). Increased plasma trimethylamine-N-oxide is associated with incident atrial fibrillation. (external link)
• EL Doets; Per Magne Ueland; Grethe S Tell et al. (2014). Interactions between plasma concentrations of folate and markers of vitamin B12 status with cognitive performance in elderly people not exposed to folic acid fortification: the Hordaland Health Study. (external link)
• Kristin Varsi; Per Magne Ueland; Ingrid Kristin Torsvik et al. (2018). Maternal serum cobalamin at 18 weeks of pregnancy predicts infant cobalamin status at 6 months-A prospective, observational study. (external link)
• 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. (external link)
• R Clarke; J. Armitage; S. Lewington et al. (2006). Homocysteine-lowering trials for prevention of cardiovascular events: A review of the design and power of the large randomized trials. (external link)
• Marije Hogeveen; Henk J Blom; Elisabeth H. van der Heijden et al. (2010). Maternal homocysteine and related B vitamins as risk factors for low birthweight. (external link)
• Gary M. Shaw; Wei Yang; Suzan L. Carmichael et al. (2014). One-carbon metabolite levels in mid-pregnancy and risks of conotruncal heart defects. (external link)
• 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. (external link)
• R Clarke; J. Armitage; S Lewington et al. (2006). Homocysteine-lowering trials for prevention of cardiovascular events: A review of the design and power of the large randomized trials. (external link)
• Karl Staffan Mårild; German Tapia; Øivind Midttun et al. (2019). Smoking in pregnancy, cord blood cotinine and risk of celiac disease diagnosis in offspring. (external link)
• RR Love; Gun Birgitta Anker; Y Yang et al. (1999). Serum homocysteine levels in postmenopausal breast cancer patients treated with tamoxifen. (external link)
• 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. (external link)
• Jannicke Igland; Stein Emil Vollset; Ottar Nygård et al. (2012). Relative importance of risk factors for coronary heart disease - The Hordaland Homocysteine Study. (external link)
• R Meleady; PM Ueland; H Blom et al. (2002). Thermolabile methylenetetrahydrofolate reductase, homocysteine, and cardiovascular disease risk: the European Concerted Action Project. (external link)
• Despoina Theofylaktopoulou; Øivind Midttun; Per Magne Ueland et al. (2018). Impaired functional vitamin B6 status is associated with increased risk of lung cancer. (external link)
• Ottar Nygård; Jan Erik Nordrehaug; Helga Refsum et al. (1997). Plasma homocysteine levels and mortality in patients with coronary artery disease. (external link)
• Ottar Nygård; Jan Erik Nordrehaug; Helga Refsum et al. (1997). Plasma homocysteine levels and mortality in patients with coronary artery disease. (external link)
• Anne Lise Bjørke-Monsen; Per Magne Ueland; Jørn Schneede et al. (1997). Elevated plasma total homocysteine and C677T mutation of the methylenetetrahydrofolate reductase gene in patients with spina bifida. (external link)
• Ronald G. Munger; Rajarajeswari Kuppuswamy; Jyotsna Murthy et al. (2021). Maternal Vitamin B<inf>12</inf> Status and Risk of Cleft Lip and Cleft Palate Birth Defects in Tamil Nadu State, India. (external link)
• Yvonne Lamers; Jerry Williamson; Maria Ralat et al. (2009). Moderate Dietary Vitamin B-6 Restriction Raises Plasma Glycine and Cystathionine Concentrations While Minimally Affecting the Rates of Glycine Turnover and Glycine Cleavage in Healthy Men and Women. (external link)
• Abee L. Boyles; Allen J. Wilcox; Jack A. Taylor et al. (2009). Oral facial clefts and gene polymorphisms in metabolism of folate/one-carbon and vitamin A: a pathway-wide association study. (external link)
• Klaus Meyer; Åse Fredriksen; Per Magne Ueland (2009). MALDI-TOF MS Genotyping of Polymorphisms Related to One-carbon Metabolism using Common and Mass-modified Terminators. (external link)
• Ernst Asbjørn Lien; Gun Birgutta Anker; Per Eystein Lønning et al. (1997). Effects of hormones on the plasma level of the atherogenic amino acid homocysteine. (external link)
• Ottar Nygård; Helga Refsum; Per Magne Ueland et al. (1997). Coffee consumption and plasma total homocysteine: The Hordaland Homocysteine Study. (external link)
• Ottar Nygård; Jan Erik Nordrehaug; Helga Refsum et al. (1997). Plasma homocysteine levels and mortality in patients with coronary artery disease. (external link)
• Indu Dhar; Sumia Siddique; Eva Kristine Ringdal Pedersen et al. (2020). Lipid parameters and vitamin A modify cardiovascular risk prediction by plasma neopterin. (external link)
• 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. (external link)
• 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. (external link)
• Marianne Bråtveit; Anthea van Parys; Thomas Olsen et al. (2024). Association between dietary macronutrient composition and plasma one-carbon metabolites and B-vitamin cofactors in patients with stable angina pectoris. (external link)
• Jie Gao; Adrian McCann; Johnny Laupsa-Borge et al. (2022). Within-person reproducibility of proteoforms related to inflammation and renal dysfunction. (external link)
• Anne Lise Bjørke-Monsen; Per Magne Ueland; Jørn Schneede et al. (1997). Elevated plasma total homocysteine and C677T mutation of the methylenetetrahydrofolate reductase gene in patients with spina bifida. (external link)
• 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. (external link)
• Stein Emil Vollset; Robert Clarke; Sarah Lewington et al. (2013). Effects of folic acid supplementation on overall and site-specific cancer incidence during the randomised trials: meta-analyses of data on 50 000 individuals. (external link)
• Birgitte Stiksrud; Piotr Nowak; Felix Chinweije Nwosu et al. (2015). Reduced levels of D-dimer and changes in gut microbiota composition after probiotic intervention in HIV-infected individuals on stable ART. (external link)
• 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. (external link)
• Yunpeng Ding; Eva Ringdal Pedersen; Stefan Johansson et al. (2016). B vitamin treatments modify the risk of myocardial infarction associated with a MTHFD1 polymorphism in patients with stable angina pectoris. (external link)
• Ottar Nygård; Helga Refsum; Per Magne Ueland et al. (1997). Coffee consumption and plasma total homocysteine: The Hordaland Homocysteine Study. (external link)
• Ottar Nygård; Helga Refsum; Per Magne Ueland et al. (1997). Homocystein og livsstil. Resultater fra Homocysteinundersøkelsen i Hordaland 1992-1993. (external link)
• 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. (external link)
• Giil Lasse Melvær; Øivind Midttun; Helga Refsum et al. (2017). Kynurenine pathway metabolites in Alzheimer's disease. (external link)
• 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. (external link)
• P. Aukrust; Rolf Kristian Berge; F. Müller et al. (1997). Elevated plasma levels of reduced homocysteine in common variable immunodeficiency - a marker of enhanced oxidative stress. (external link)
• P. Aukrust; Rolf Kristian Berge; F. Müller et al. (1997). Elevated plasma levels of reduced homocysteine in common variable immunodeficiency - a marker of enhanced oxidative stress. (external link)
• Anne M. Molloy; Faith Pangilinan; James L. Mills et al. (2016). A Common Polymorphism in HIBCH Influences Methylmalonic Acid Concentrations in Blood Independently of Cobalamin. (external link)
• 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. (external link)
• Per Ole Iversen; Prudence Atukunda; Remco Kort et al. (2020). No associations between microbiota signaling substances and cognitive, language and motor development among three-year-old rural Ugandan children. (external link)
• Kathrine Vinknes; Jacqueline M. Dekker; Christian A Drevon et al. (2013). Plasma sulfur amino acids and stearoyl-CoA desaturase activity in two caucasian populations. Prostaglandins Leukot Essent Fatty Acids 2. (external link)
• Svetlana Konstantinova; Grethe S Tell; Stein Emil Vollset et al. (2008). Divergent associations of plasma choline and betaine with components of metabolic syndrome in middle age and elderly men and women. (external link)
• 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. (external link)
• Helga Bergljot Midtbø; Ester Anne Kringeland; Eva Gerdts et al. (2022). Biomarkers of inflammation and left ventricular remodelling in psoriasis patients treated with infliximab. (external link)
• Roy M Nilsen; Stein Emil Vollset; Anne Lise B Monsen et al. (2010). Infant birth size is not associated with maternal intake and status of folate during the second trimester in norwegian pregnant women. (external link)
• 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. (external link)
• 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. (external link)
• 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). (external link)
• Stein Emil Vollset; Jannicke Igland; Mazda Jenab et al. (2007). The association of gastric cancer risk with plasma folate, cobalamin, and Methylenetetrahydrofolate reductase polymorphisms in the European prospective investigation into cancer and nutrition. (external link)
• Espen Øglænd Bjørnestad; Indu Dhar; Gard Frodahl Tveitevåg Svingen et al. (2022). Circulating trimethylamine N-oxide levels do not predict 10-year survival in patients with or without coronary heart disease. (external link)
• 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. (external link)
• Pål Aukrust; Rolf Kristian Berge; Fredrik Muller et al. (1997). Elevated plasma levels of reduced homocysteine in common variable immunodeficiency - a marker of enhanced oxidative stress. (external link)
• Else Quist-Paulsen; Vidar Ormaasen; Anne-Marte Bakken Kran et al. (2019). Encephalitis and aseptic meningitis: short-term and long-term outcome, quality of life and neuropsychological functioning. (external link)
• Sajan Raju; Antonio Molinaro; Ayodeji Olawale Awoyemi et al. (2024). Microbial-derived imidazole propionate links the heart failure-associated microbiome alterations to disease severity. (external link)
• Tor A Strand; Manjeswori Ulak Chandyo; Mari Hysing et al. (2020). Effects of vitamin B12 supplementation on neurodevelopment and growth in Nepalese Infants: A randomized controlled trial. (external link)
• Hana Zahed; Mattias Johansson; Per Magne Ueland et al. (2021). Epidemiology of 40 blood biomarkers of one-carbon metabolism, vitamin status, inflammation, and renal and endothelial function among cancer-free older adults. (external link)
• 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. (external link)
• C.E. Kim; A.B. Guttormsen; Helge Refsum et al. (1997). Functioinal modeling of vitamin responsiveness in yeast: a common pyridoxine-responsive cysatihione b-synthase mutation i homocyteinuria. (external link)
• Stefan De Vogel; Klaus Meyer; Åse Fredriksen et al. (2013). Serum folate and vitamin B12 concentrations in relation to prostate cancer risk-a Norwegian population-based nested case-control study of 3000 cases and 3000 controls within the JANUS cohort. (external link)
• 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. (external link)
• Sol Maja Graasvold Bjørkevoll; Carolien Konijnenberg; Ingrid Hafting Kvestad et al. (2023). Vitamin B12 and folate status in pregnant females and their infants in Norway: Secondary analysis from the Mommy´s Food Study. (external link)
• Bettina Riedel; Torunn Fiskerstrand; Helga Refsum et al. (1999). Co-ordinate variations in methylmalonyl-CoA mutase and methionine synthase. and the cobalamin cofactors in human glioma cellse during nitrous oxide exposure and the subsequent recovery phase. (external link)
• 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. (external link)
• 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. (external link)
• Pol Solé-Navais; Judith Salat-Batlle; Pere Cavallé-Busquets et al. (2018). Early pregnancy folate-cobalamin interactions and their effects on cobalamin status and hematologic variables throughout pregnancy. (external link)
• Anne-Lise Bjørke Monsen; Kristin Varsi; Sunniva Todnem Sakkestad et al. (2022). Assessment of vitamin B6 status in never-pregnant, pregnant and postpartum women and their infants. (external link)
• Tor A Strand; Sunita Taneja; Nita Bhandari et al. (2007). Folate, but not vitamin B-12 status, predicts respiratory morbidity in north Indian children. (external link)
• Clara Gram Gjesdal; Stein Emil Vollset; Per Magne Ueland et al. (2007). Plasma homocysteine, folate, and vitamin B-12 and the risk of hip fracture: The hordaland homocysteine study. (external link)
• Anne Lise Bjørke-Monsen; Ingrid Kristin Torsvik; Hege Sætran et al. (2008). Common metabolic profile in infants indicating impaired cobalamin status responds to cobalamin supplementation. (external link)
• Robert Clarke; John Grimley Evans; Jørn Schneede et al. (2004). Vitamin B12 and folate deficiency in later life. (external link)
• Helga Refsum; Åse Fredriksen; Klaus Meyer et al. (2004). Birth prevalence of homocystinuria. (external link)
• Klaus Meyer; Åse Fredriksen; Per Magne Ueland (2004). High-level multiplex genotyping of polymorphisms involved in folate or homocysteine metabolism by matrix-assisted laser desorption/ionization mass spectrometry. (external link)
• Nicole Stone; Faith Pangilinan; Anne M. Molloy et al. (2011). Bioinformatic and Genetic Association Analysis of MicroRNA Target Sites in One-Carbon Metabolism Genes. (external link)
• 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. (external link)
• Paula Berstad; Svetlana Konstantinova; Helga Refsum et al. (2007). Dietary fat and plasma total homocysteine concentrations in 2 adult age groups: the Hordaland Homocysteine Study. (external link)
• Kjetil Halvorsen Løland; Øyvind Bleie; Elin Strand et al. (2013). Effect of folic acid supplementation on levels of circulating monocyte chemoattractant protein-1 and the presence of intravascular ultrasound derived virtual histology thin-cap fibroatheromas in patients with stable angina pectoris. (external link)
• 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. (external link)
• Anne Lise Bjørke-Monsen; Per Magne Ueland; Jørn Schneede et al. (1997). Elevated plasma total homocysteine and C677T mutation of the methylenetetrahydrofolate reductase gene in patients with spina bifida. (external link)
• P. Aukrust; R.K. Berge; F. Müller et al. (1997). Enhanced lipid peroxidation is correlated with elevated plasma levels of reduced homocysteine in patients with common variable immunodeficiency (CVI). (external link)
• Ottar Nygård; Helga Refsum; Per Magne Ueland et al. (1997). Coffee consumption and plasma total homocysteine: The Hordaland Homocysteine Study. (external link)
• Ottar Nygård; Helga Refsum; Per Magne Ueland et al. (1997). Homocystein og livsstil. Resultater fra Homocysteinundersøkelsen i Hordaland 1992-1993. (external link)
• I.M. Graham; L.E. Daly; Helga Refsum et al. (1997). Plasma homocysteine as a risk factor for vascular disease: The European Concerted Action Project. (external link)
• C.E. Kim; P.M. Gallagher; Anne Berit Guttormsen et al. (1997). Functional modeling of vitamin responsivness in yeast: a commom pyridoxine-responsive cystathionine beta-synthase mutation in homocystinuria. (external link)
• S. Tonstad; Torunn Fiskerstrand; Per Magne Ueland (1997). Association between plasma total homocysteine and parental history of cardiovascular disease in children with familial hypercholesterolemia. (external link)
• Torunn Fiskerstrand; Per Magne Ueland; Helga Refsum (1997). Folate depletion induced by methotrexate affects methionine synthase activity and its susceptibility to inactivation by nitrous oxide. (external link)
• Torunn Fiskerstrand; Per Magne Ueland; Helga Refsum (1997). Response of the methionine synthase system during short-term culture with homocysteine and nitrous oxide and its relation to methionine dependence. (external link)
• Arve Ulvik; Helga Refsum; L.A.J. Kluijtmans et al. (1997). C677T mutation of methylenetetrahydrofolate reductase gene determined in blood or plasma by multiple injection capillary electrophoresis and laser-induced fluorescence detection. (external link)
• P. Verhoef; F.J. Kok; D.A.C.M. Kruyssen et al. (1997). Plasma total homocysteine, B-vitamins and risk of coronary atherosclerosis. (external link)
• T. Fiskerstrand; B. Reidel; Per Magne Ueland et al. (1998). Disruption of a Regulatory system Involving Cobalamin distribution and Function in a Methionine-dependent Human glioma Cell Line. (external link)
• Ernst Asbjørn Lien; Gun Birgitta Anker; Per Eystein Lønning et al. (1995). Determination of droloxifene and two metabolites in serum by high pressure liquid chromatography. (external link)
• Ram K. Chandyo; Ingrid Kvestad; Manjeswori Ulak Chandyo et al. (2023). The effect of vitamin B12 supplementation during pregnancy on infant growth and development in Nepal: a community-based, double-blind, randomised, placebo-controlled trial. (external link)
• Pierre-Antoine Dugué; Allison M. Hodge; Arve Ulvik et al. (2021). Association of Markers of Inflammation, the Kynurenine Pathway and B Vitamins with Age and Mortality, and a Signature of Inflammaging. (external link)
• Pål Ivar Holm; Simon Steinar Hustad; Per Magne Ueland et al. (2007). Modulation of the homocysteine-betaine relationship by methylenetetrahydrofolate reductase 677 C-> T genotypes and B-vitamin status in a large-scale epidemiological study. (external link)
• Anne Berit Guttormsen; Per Magne Ueland; E. Svarstad et al. (1997). Kinetic basis of hyperhomocysteinemia in patients with chronic renal failure. (external link)
• P. Verhoef; F.J. Kok; L.J. Kluijtmans et al. (1997). The 677C-T mutation in the methylenetetrahydrofolate reductase gene: assosiations with plasma total homocysteine levels and risk of coronary atherosclerotic disease. (external link)
• Helga Refsum; Torunn Fiskerstrand; Anne Berit Guttormsen et al. (1997). Assessment of homocysteine status. (external link)
• Jicun Ren; Arve Ulvik; Per Magne Ueland et al. (1997). Analysis of single-strand conformation polymorphism by capillary electrophoresis with laser-induced flourescence detection using short-chain polyacrylamide as sieving medium. (external link)
• Anne Berit Guttormsen; Per Magne Ueland; E Svarstad et al. (1997). Kinetic basis of hyperhomocysteinemia in patients with chronic renal failure. (external link)
• Ernst Asbjørn Lien; Gun Birgitta Anker; Per Eystein Lønning et al. (1997). Effects of hormones on the plasma levels of the atherogenic amino acid homocysteine. (external link)
• CE Kim; PM Gallagher; Anne Berit Guttormsen et al. (1997). Functional modeling of vitamin responsiveness in yeast: a common pyridoxine-responsive cystathionine B-synthase mutation in homocystinuria. (external link)
• Shu-Chun Chuang; Anouar Fanidi; Per Magne Ueland et al. (2014). Circulating biomarkers of tryptophan and the kynurenine pathway and lung cancer risk. (external link)
• 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. (external link)
• Simone Eussen; Per Magne Ueland; Stein Emil Vollset et al. (2015). Kynurenines as predictors of acute coronary events in the Hordaland Health Study. (external link)
• Ottar Nygård; Helga Refsum; Per Magne Ueland et al. (1998). Major lifestyle determinants of plasma total homocysteine distribution: The Hordaland Homocysteine Study. (external link)
• Helga Refsum; Per Magne Ueland; Ottar Nygård et al. (1998). Homocysteine and cardiovascular disease. (external link)
• Jørn Schneede; Per Magne Ueland (1995). Application of capillary electrophoresis with laser-induced fluorescence detection for routine analysis of methylmalonic acid in human serum. (external link)
• Ernst Asbjørn Lien; Gun Birgitta Anker; Per Magne Ueland (1995). Pharmacokinetics of tamoxifen in pre- and post-menopausal women with breast cancer. (external link)
• Gun Birgitta Anker; Per Eystein Lønning; Per Magne Ueland et al. (1995). Plasma levels of the atherogenic amino acid homocysteine in post-menopausal women with breast cancer treated with tamoxifen. (external link)
• Elisabeth Toverud Landaas; Tore Ivar Malmei Aarsland; Arve Ulvik et al. (2016). Vitamin levels in adults with ADHD. (external link)
• Yunpeng Ding; Eva Ringdal Pedersen; Gard Frodahl Tveitevåg Svingen et al. (2016). Methylenetetrahydrofolate dehydrogenase 1 polymorphisms modify the associations of plasma glycine and serine with risk of acute myocardial infarction in patients with stable angina pectoris in WENBIT (Western Norway B Vitamin Intervention Trial). (external link)
• Bettina Riedel; Anne M. Molloy; Klaus Meyer et al. (2011). Transcobalamin polymorphism 67A-> G, but not 776C-> G, affects serum holotranscobalamin in a cohort of healthy middle-aged men and women. (external link)
• Eva Kristine Ringdal Pedersen; Gard Frodahl Tveitevåg Svingen; Hall Schartum-Hansen et al. (2013). Urinary excretion of kynurenine and tryptophan, cardiovascular events, and mortality after elective coronary angiography. (external link)
• Anna Vogiatzoglou; David Smith; Eha Nurk et al. (2013). Cognitive function in an elderly population: Interaction between vitamin B12 status, depression and apolipoprotein E4. The Hordaland Homocysteine Study. (external link)

Conference poster

• Tor A Strand; Sunita Taneja; Nita Bhandari et al. (2009). Vitamin B12, but not folate status predicts mental development scores in north indian toddlers. (external link)
• 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. (external link)
• Marta Ebbing; Øyvind Bleie; Jan Erik Nordrehaug et al. (2007). WENBIT - Western Norway B vitamin intervention trial. (external link)
• Arve Ulvik; Per Magne Ueland; Stein Emil Vollset et al. (2007). Non-dietary lifestyle determinants of serum folate (coffee, smoking, alcohol, and body-mass index). (external link)
• Svetlana Konstantinova; Grethe S Tell; Stein Emil Vollset et al. (2007). Components of the metabolic syndrome and other cardiovascular risk factors as predictors of plasma choline and betaine: The Hordaland Homocysteine Study. (external link)
• Arve Ulvik; Åse Fredriksen; Klaus Meyer et al. (2005). The MTHFR 1298A->C polymorphism, effects on serum folate and total homocysteine. (external link)
• Klaus Meyer; Åse Fredriksen; Per Magne Ueland (2007). High-level multiplex genotyping of single nucleotide polymorphisms involved in one-carbon metabolism by Matrix-assisted Laser Desorption/Ionization Mass Spectrometry. (external link)
• Gard Frodahl Tveitevåg Svingen; Per Magne Ueland; Hall Schartum-Hansen et al. (2013). Plasma dimethylglycine is associated with all-cause mortality in patients with coronary heart disease. (external link)
• Elin Strand; Bodil Bjørndal; Eva Kristine Ringdal Pedersen et al. (2013). The PPARɣ Agonist Pioglitazone and Plasma Levels of Choline or Related Methylamines in Women with Polycystic Ovary Syndrome. (external link)
• 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. (external link)
• Elin Strand; Øyvind Bleie; Per Magne Ueland et al. (2007). Changes in Atherosclerotic Plaque Volume Measured using Intracoronary Ultrasound during B-vitamin Intervention. (external link)
• Klaus Meyer; Åse Fredriksen; Per Magne Ueland et al. (2006). Metabolic profiling of thirteen genetic polymorphisms related to one-carbon metabolism in a population based study including 10,610 subjects. (external link)
• 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. (external link)
• Rita Skålevik; Arve Ulvik; Asbjørn Svardal et al. (2004). Determination of folate species and folate-related compounds in serum by liquid chromatography tandem mass spectroscopy. (external link)
• Øyvind Bleie; Anne Grete Semb; Jan Erik Nordrehaug et al. (2004). Inflammatory Markers CD40L, IL-6, Neopterin and CRP are Not Influenced by Homocysteine Lowering Therapy in Patients with Coronary Artery Disease. (external link)
• Eva Kristine Ringdal Pedersen; Marta Ebbing; Øivind Midttun et al. (2007). B6 vitamers as predictors of mortality in patients with stable chest pain. (external link)
• Øyvind Bleie; Elin Strand; Per Magne Ueland et al. (2007). Changes in Atherosclerotic Plaque Volume Measured with Intracoronary Ultrasound during B-vitamin Intervention (a WENBIT substudy). (external link)
• Mona Synnøve Nilsen; Regine Åsen Jersin; Andre Madsen et al. (2019). Adipocyte amino acid metabolism in obesity-related metabolic diseases. (external link)
• Hui Zuo; Per Magne Ueland; Ottar Nygård et al. (2017). Plasma choline and betaine and risk of incident atrial fibrillation: the Hordaland Health Study. (external link)
• Hui Zuo; Grethe S. Tell; Per Magne Ueland et al. (2017). Vitamin B6-related biomarkers and long-term stroke risk: the Hordaland Health Study. (external link)
• Anne Berit Guttormsen; E Svarstad; Per Magne Ueland et al. (1995). Elimination of homocystein from plasma in subjects with endstage renal failure. (external link)
• Eirik Wilberg Rebnord; Eva Ringdal Pedersen; Elin Strand et al. (2014). GLYCOSYLATED HAEMOGLOBIN AND LONG-TERM PROGNOSIS IN PATIENTS WITH SUSPECTED STABLE ANGINA PECTORIS WITHOUT DIABETES. (external link)
• Arve Ulvik; Stein Emil Vollset; Svein Hansen et al. (2004). Serum cysteine, homocysteine and colorectal cancer - a prospective case-control study from the Janus serum collection. (external link)
• Åse Fredriksen; Klaus Meyer; Jørn Schneede et al. (2004). Multiplex genotyping by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry: prevalence determination of 13 polymorphisms in genes related to the folate and homocysteine metabolism in a Norwegian population. (external link)
• Arve Ulvik; Stein Emil Vollset; Svein Hansen et al. (2004). Colorectal cancer and the methylenetetrahydrofolate reductase 677C->T and methionine synthase 2756A->G polymorphisms. A study of 2179 case-control pairs from the Janus cohort. (external link)
• Marta Ebbing; Kaare Harald Bønaa; Jan Erik Nordrehaug et al. (2009). Combined results and long-term follow-up in NORVIT and WENBIT with 6837 coronary artery disease patients: Homocysteine-lowering B-vitamin treatment does not prevent major cardiovascular events. (external link)
• Marta Ebbing; Kaare Harald Bønaa; Egil Arnesen et al. (2009). Kombinerte resultat og langtids oppfølging i NORVIT og WENBIT – to kliniske forsøk blant 6837 pasienter med iskemisk hjertesykdom. (external link)
• Marta Ebbing; Kaare Harald Bønaa; Jan Erik Nordrehaug et al. (2009). Combined results and long-term follow-up in NORVIT and WENBIT with 6837 coronary artery disease patients: Homocysteine-lowering B-vitamin treatment does not prevent major cardiovascular events. European Heart Journal 2009: 30 (Abstract Supplement), 184. P 1274. (external link)
• 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. (external link)
• Øivind Midttun; Steinar Hustad; Per Magne Ueland et al. (2003). Determination of All Forms of Vitamins B2 and B6 in Human Plasma by Liquid Chromatography-Tandem Mass Spectrometry. (external link)

Editorial/Leader article

• Per Magne Ueland (2008). Importance of chemical reduction in plasma and serum homocysteine analysis. (external link)
• Per Magne Ueland; Simon Steinar Hustad (2008). Homocysteine and folate status in an era of folic acid fortification: Balancing benefits, risks, and B-vitamins. (external link)
• Marta Ebbing; Per Magne Ueland (2010). PREVENTION B vitamins and CVD-failure to find a simple solution. (external link)
• Per Magne Ueland; Joseph Loscalzo (2012). Homocysteine and Cardiovascular Risk: The Perils of Reductionism in a Complex System. (external link)
• Per Magne Ueland; Robert Clarke (2007). Homocysteine and cardiovascular risk: Considering the evidence in the context of study design, folate fortification, and statistical power. (external link)

Conference lecture

• Marta Ebbing; Øyvind Bleie; Jan Erik Nordrehaug et al. (2007). WENBIT -Western Norway B-vitamin Intervention Trial: P96, Clinical Chemistry & Laboratory Medicine. 45(5):A18, May 2007. (external link)
• Øivind Midttun; Steinar Hustad; Per Magne Ueland et al. (2003). HPLC-MS-MS assay for the determination of all forms of vitamins B2 and B6 in human plasma. (external link)
• Grethe Tell; Eha Nurk; Stein Emil Vollset et al. (2001). Plasma total homocysteine and hospitalizations for cardiovascular disease: The Hordaland Homocysteine Study. (external link)
• Eha Nurk; Grethe Tell; Stein Emil Vollset et al. (2001). Predictors of 6-years changes in plasma total homocysteine: The Hordaland Homocysteine Study. (external link)
• Grethe Tell; Eha Nurk; Stein Emil Vollset et al. (2001). Plasma total homocysteine and hospitalizations for cardiovascular disease: The Hordaland Homocysteine Study. (external link)
• Klaus Meyer; Åse Fredriksen; Per Magne Ueland (2005). High Troughput Genotyping of SNP by MALDI-TOF MS. (external link)
• Åse Fredriksen; Klaus Meyer; Per Magne Ueland (2004). Prevalence determination of 13 polymorphisms in a Norwegian population by MALDI-TOF MS. (external link)
• Christine Louise Parr; Christian Page; Kristin Holvik et al. (2017). Pregnancy fatty acid status and newborn DNA methylation: the MoBa pregnancy cohort. (external link)
• 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. (external link)
• Klaus Meyer; Åse Fredriksen; Per Magne Ueland (2007). High-level multiplex genotyping of single nucleotide polymorphisms involved in one-carbon metabolism by Matrix-assisted Laser Desorption/Ionization Mass Spectrometry. (external link)
• Klaus Meyer; Åse Fredriksen; Per Magne Ueland (2007). High-level multiplex genotyping of polymorphisms involved in one-carbon metabolism by MALDI-TOF MS. (external link)
• Gard Svingen; Per Magne Ueland; Øyvind Bleie et al. (2007). Asymmetric and symmetric dimethylarginine are weaker predictors than homocysteine of long-term mortality in patients with stable angina. (external link)
• Stein Emil Vollset; Lorentz M Irgens; Anne Lise Bjørke-Monsen et al. (1997). Total plasma homocysteine and previous occurrence of congenital malformations: The Hordaland Homocysteine Study. (external link)
• Grethe S Tell; Ottar Nygård; Stein Emil Vollset et al. (1997). Total mortality and serum uric acid in patients with confirmed coronary artery disease. (external link)
• Stein Emil Vollset; Lorentz M Irgens; Anne Lise Bjørke-Monsen et al. (1997). Total plasma homocysteine and previous occurrence of congenital malformations: The Hordaland Homocysteine Study. (external link)
• Rita Hannisdal; Asbjørn Svardal; Per Magne Ueland (2007). A novel serum folate assay measuring intact and degraded folate species as para-aminobenzoylglutamate equivalents in fresh and stored samples. (external link)
• Robert Clarke; J Halsey; S Lewington et al. (2010). Effects of lowering homocysteine levels with B vitamins on cardiovascular disease, cancer, and cause-specific mortality: Meta-analysis of 8 randomized trials involving 37 485 individuals. (external link)
• 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. (external link)
• Øistein Mjelva; Gard Frodahl Tveitevåg Svingen; Eva Ringdal Pedersen et al. (2015). Fibrinogen And Neopterin Predict Future Myocardial Infarction Events In Patients With Stable Coronary Heart Disease. Circulation. 2015;132:A19224.. (external link)
• 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. (external link)
• Ottar Nygård; Stein Emil Vollset; Gunnar Kvåle et al. (1995). Plasma homocystein og forbruk av kaffe og te. (external link)
• Ottar Nygård; Stein Emil Vollset; Gunnar Kvåle et al. (1995). Plasma homocysteine and relation to coffee and tea comsimption. (external link)
• Mona Synnøve Nilsen; Regine Åsen Jersin; Andre Madsen et al. (2018). Amino acid metabolism in adipocytes. (external link)
• Klaus Meyer; Åse Fredriksen; Per Magne Ueland (2006). High throughput genotyping of single nucleotide polymorphisms by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. (external link)
• Anne Berit Guttormsen; E Solheim; Per Magne Ueland et al. (1998). Mastcelletryptase og kvantitering av IgE antistoffer mot ammonium grupper, thilopental og cholin (suxameton) hos 25 pasienter med anafylaktisk sjokk under induksjon av generell anestesi. (external link)
• Bjørn G Nedrebø; Sylvi Aanderud; Ottar Nygård et al. (1999). Plasma levels of homocysteine are changed during treatment of hyper- and hypothyroidism. (external link)
• Mona Synnøve Nilsen; Regine Åsen Jersin; Adrian McCann et al. (2019). Circulating 3-hydroxyisobutyrate (3-HIB) as a clinical marker of prediabetes and T2D in patients with obesity. (external link)
• Ottar Nygård; Helge Refsum; John Kjekshus et al. (2001). Total Homocysteine Levels Predicts Major Coronary Events and Mortality in Simvastatin Treated Patients of 4S. (external link)
• Svetlana Konstantinova; Grethe S Tell; Stein Emil Vollset et al. (2007). Components of the metabolic syndrome and other cardiovascular risk factors as predictors of plasma choline and betaine. (external link)
• Åse Fredriksen; Klaus Meyer; Jørn Schneede et al. (2005). Effects of polymorphisms in genes related to the folate and homocysteine metabolism in a Norwegian population. (external link)
• Stein Emil Vollset; Lorentz Irgens; Anne Lise Bjørke-Monsen et al. (1997). Total plasma homocysteine and previous occurrence of congenital malformations: The Hordaland Homocysteine Study. (external link)
• O. Nygård; Helge Refsum; John Kjekshus et al. (2002). Total homocysteine levels predicts major coronary events and mortaliy in simvastatin treated patients of 4S. (external link)
• Birgitte Stiksrud; Kristina Berg Lorvik; Dag Kvale et al. (2015). Plasma Interferon-inducible Protein 10 Levels, T-cell Activation and Regulation are Increased in HIV Immunological Non-Responders. (external link)
• Tor A Strand; Sunita Taneja; Nita Bhandari et al. (2005). Folate, but not cobalamin status predicts respiratory morbidity in north Indian children. (external link)
• Halvor Sommerfelt; Sunita Taneja; Tor A Strand et al. (2005). Effect of daily zinc supplementation for 4 months on plasma concentrations of folate, cobalamin, and other markers of B-vitamin status: A randomized placebo-controlled trial in young north Indian children. (external link)
• Ottar Nygård; Helga Refsum; Per Magne Ueland et al. (1997). Plasma homocystein og livsstil. Resultater fra Homocysteinundersøkelsen i Hordaland 1992-1993. [Poster]. (external link)
• Ottar Nygård; Jan Erik Nordrehaug; Helga Refsum et al. (1997). Plasma homocysteine predicts mortality in coronary artery diseased patients. (external link)

Doctoral thesis (PhD)

• Simon Steinar Hustad; Per Magne Ueland; Jørn Schneede et al. (2005). Assessment of Riboflavin Status in Humans: Method Development and Clinical Studies. (external link)
• Arve Ulvik; Per Magne Ueland (2005). Colorectal cancer, one-carbon metabolism and related single-nucleotide polymorphisms. Method development and epidemiological studies. (external link)
• Vegard Lysne; Ottar Nygård; Jutta Dierkes et al. (2019). Biomarkers of one-carbon metabolism and B-vitamin status : Targeted metabolomics in rats and humans exploring the effects of PPARα-activation and dietary composition. (external link)
• Eha Nurk; Per Magne Ueland; Grethe S Tell (2004). Homocysteine, related factors and disease: the Hordaland Homocysteine Study. (external link)
• Per Magne Ueland (1979). A cyclic AMP-adenosine binding protein associated with S- adenosylhomocysteinase activity : purification and characteri- zation with special reference to binding properties. (external link)
• Bettina Riedel; Per Magne Ueland (2006). Assessment of cobalamin status in experimental and clinical studies by intracellular and extracellular markers of vitamin function. (external link)
• Pål Ivar Holm; Ernst Asbjørn Lien; Per Magne Ueland (2007). Betaine and its relation to homocysteine status and one-carbon metabolism in humans : analytical method and biochemical studies. (external link)

Academic book chapter

• Rita Hannisdal; Asbjørn Svardal; Per Magne Ueland (2007). Methods for folate measurement. Current status, caveats and future development. (external link)
• Helga Refsum; Anne Berit Guttormsen; Torunn Fiskerstrand et al. (1997). On the formation and fate of plasma homocysteine. (external link)
• Per Magne Ueland; Torunn Fiskerstrand; Helga Refsum (1997). Homocysteine and drug therapy. (external link)
• Per Magne Ueland; Helga Refsum; H.J. Blom et al. (1997). Assessment of homocysteine. (external link)
• Stein Emil Vollset; O.G.K. Nygård; Per Magne Ueland et al. (1997). The Hordaland homosysteine study: Lifestyle and plasma homocysteine in Western Norway. (external link)
• I.M. Graham; L.E. Daly; Helga Refsum et al. (1997). Homocysteine and vascular disease: The European Concerted Action Project. (external link)
• F. Müller; P. Aukrust; A.M. Svardal et al. (1997). The thiols glutathione, cysteine and homocysteine in human immunodeficiency virus (HIV) infection. (external link)
• Arve Ulvik; Per Magne Ueland (2004). Assays for methylenetetrahydrofolate reductase polymorphisms. (external link)
• Simon Steinar Hustad; Jørn Schneede; Per Magne Ueland (2004). Riboflavin and methylenetetrahydrofolate reductase. (external link)
• Per Magne Ueland; Asbjørn M. Svardal; Helga Refsum et al. (1986). Disposition of endogenous S-adenosyl-homocysteine and homocysteine following exposure to nucleoside analogues and methotrexate. (external link)
• Per Magne Ueland; Helga Refsum; Asbjørn M. Svardal et al. (1987). Pertubation of homocysteine metabolism by pharmacological agents in experimental and clinical use. (external link)
• Fredrik Muller; Pål Aukrust; Asbjørn M. Svardal et al. (1998). The thiols glutathione, cysteine and homocysteine in human immunodeficiency virus (HIV) infection. (external link)
• F. Müller; P. Aukrust; A.M. Svardal et al. (1997). The thiols glutathione, cysteine and homocysteine in human immunodeficiency virus (HIV) infection. (external link)
• Rita Skålevik; Asbjørn M. Svardal; Per Magne Ueland (2007). Methods for folate measurement: Current status, caveats and future development. (external link)

Letter to the editor

• Tuva Børresdatter Dahl; Friha Aftab; Christian Haugland Prebensen et al. (2025). Imidazole propionate is increased in severe COVID-19 and correlates with cardiac involvement. (external link)
• Karl Mårild; Maria Vistnes; German Tapia et al. (2017). Midpregnancy and cord blood immunologic biomarkers, HLA genotype, and pediatric celiac disease. (external link)
• Per Magne Ueland; Stein Emil Vollset (2004). Homocysteine and folate in pregnancy. (external link)
• Eha Nurk; Helga Refsum; Grethe S Tell et al. (2006). Factor V Leiden, pregnancy complications and adverse outcomes - Response. (external link)
• Kaare Harald Bønaa; KH Bonaa; Aage Tverdal et al. (2006). Homocysteine, B vitamins, and cardiovascular disease - Reply. (external link)
• Marta Ebbing; Per Magne Ueland; Ottar Nygård (2008). Lowering Homocysteine With B Vitamins in Patients With Coronary Artery Disease Reply. (external link)
• Stein Emil Vollset; Per Magne Ueland (2005). B vitamins and cognitive function: do we need more and larger trials?. (external link)
• Siri Eldevik Håberg; Stephanie J. London; Per Nafstad et al. (2011). Maternal folate levels in pregnancy and asthma in children at age 3 years. (external link)

Media feature article

• Robert Clarke; J. Armitage; S. Lewington et al. (2007). Homocysteine-lowerng trials for prevention of vascular disease: protocol for a collaborative meta-analysis. (external link)
• Stein Emil Vollset; Ottar Nygard; H Refsum et al. (2000). Coffee and homocysteine (editorial). (external link)
• Ottar Nygård; Stein Emil Vollset; Helga Refsum et al. (1997). Coffee consumption and plasma homocyst(e)ine: results from the atherosclerosis risk in communities study. Reply to FJ Nieto et al. (external link)
• Ottar Nygård; Helga Refsum; Per Magne Ueland et al. (1997). Plasma homocysteine levels and mortality in patients with coronary heart disease. Reply. (external link)
• Ottar Nygård; Stein Emil Vollset; Helga Refsum et al. (1997). Coffee consumption and plasma homocyst(e)ine: results from the atherosclerosis risk in communities study. Reply to FJ Nieto et al. (external link)
• Ottar Nygård; Helga Refsum; Per Magne Ueland et al. (1997). Plasma homocysteine levels and mortality in patients with coronary heart disease. Reply. (external link)

Non-fiction monograph

• I.M. Graham; Helga Refsum; I.H. Rosenberg et al. (1997). Homocysteine metabolism. From basic science to clinical med icine. (external link)
• RT Borchardt; CR Creveling; Per Magne Ueland (1986). Biological methylation and drug design. (external link)
• Per Magne Ueland; Rima Rozen (2004). MTHFR Polymorphisms and Disease. (external link)

Conference abstract

• Ingrid Kristin Torsvik; Trond Markestad; Per Magne Ueland et al. (2011). Hematological parameters and iron status in infants with a birthweight below 3000 g. (external link)
• Gard Frodal Svingen; E R Pedersen; Per Magne Ueland et al. (2012). Plasma dimethylglycine is an independent risk factor of acute myocardial infarction in patients with stable angina pectoris. (external link)
• Hall Schartum-Hansen; Eva Kristine Ringdal Pedersen; Gard Frodal Svingen et al. (2012). Relationship between plasma choline and betaine levels and risk of acute myocardial infarction in patients with stable coronary heart disease. (external link)
• Tor A Strand; T Sunita; Nita Bhandari et al. (2009). VITAMIN B12, BUT NOT FOLATE STATUS PREDICTS MENTAL DEVELOPMENT SCORES IN NORTH INDIAN TODDLERS. (external link)
• Jutta Dierkes; Eirik Magnus Meek Degerud; Ottar Nygård et al. (2013). DETERMINANTS OF VITAMIN D STATUS IN PATIENTS WITH STABLE ANGINA. (external link)
• Øyvind Bleie; Elin Strand; Helga Refsum et al. (2005). The Effect of Homocysteine Lowering Therapy on Inflammatory Markers Neopterin and CRP in Patients with Stable Coronary Artery Disease. A substudy of the Western Norway B-vitamin Intervention Trial (WENBIT). (external link)
• Øyvind Bleie; Elin Strand; Per Magne Ueland et al. (2005). Effect of homocysteine lowering therapy on coronary endothelial function in patients with stable coronary artery disease. A substudy of the Western Norway B-vitamin Intervention Trial (WENBIT). (external link)
• Øyvind Bleie; Elin Strand; Per Magne Ueland et al. (2005). Effect of Homocysteine Lowering Therapy on Coronary Endothelial Function in Patients with Stable Coronary Artery Disease. (external link)
• Abee L. Boyles; Allen J. Wilcox; Klaus Meyer et al. (2007). Folate metabolism genes and the risk of orofacial clefts. (external link)
• Svetlana Konstantinova; Grethe S Tell; Stein Emil Vollset et al. (2007). Predictors of plasma choline and betaine: The Hordaland Homocysteine Study. (external link)
• Mari Skar Manger; Maharaj Kishan Bhan; Tor A Strand et al. (2009). DOES VITAMIN B12 OR FOLATE STATUS MODIFY THE IMPACT OF ZINC SUPPLEMENTATION ON THE INCIDENCE OF DIARRHEA?. (external link)
• Siri Eldevik Håberg; SJ London; Per Magne Ueland et al. (2010). Maternal Folate Levels in Pregnancy and Asthma at 3 Years of Age. (external link)
• Are Jordahl Blix; Kjetil Halvorsen Løland; KH Loland et al. (2008). The ratio of apolipoproteins ApoB/ApoA1 as a predictor of angiographic progression of atherosclerosis in patients with coronary artery disease. (external link)
• Gard Frodahl Svingen; Per Magne Ueland; Øyvind Bleie et al. (2008). Asymmetric and symmetric dimethylarginine are weaker predictors than homocysteine of long-term mortality in both men and women with stable angina. (external link)
• Kjetil Halvorsen Løland; Are Jordahl Blix; Øyvind Bleie et al. (2008). The effect of homocysteine-lowering B-vitamin intervention on angiographic coronary artery disease may be adverse - A WENBIT sub-study. (external link)
• Eva Kristine Ringdal Pedersen; Marta Ebbing; Øivind Midttun et al. (2008). B6 vitamers and long term mortality in patients with stable angina. (external link)
• Øyvind Bleie; O Bleie; Elin Strand et al. (2008). Homocysteine lowering B-vitamin therapy improves coronary flow in patients with stable coronary artery disease, a WENBIT substudy. (external link)
• 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. (external link)
• Øyvind Bleie; O Bleie; Elin Strand et al. (2008). Homocysteine lowering B-vitamin therapy and in-stent restenosis. A WENBIT sub study. (external link)
• Ruth K. Price; Edel M. Keaveney; Laura L. Hamill et al. (2007). Plasma uptake of methyl donors from wheat fractions by human subjects. (external link)
• Anne Lise Bjørke Monsen; Ingrid Kristin Torsvik; Hege Sætran et al. (2008). Effect of cobalamin supplementation in infants: A randomized, controlled trial. (external link)
• Anne Lise Bjørke Monsen; Ingrid Kristin Torsvik; Trond Markestad et al. (2011). Cobalamin supplementation improves motor development and gastrointestinal reflux in moderately deficient infants. (external link)
• Heidi Vihovde Sandvig; Trine Holt Edwin; Stina Aam et al. (2024). Abstract ID: 0066 Trajectories of post-stroke cognitive function related to systemic inflammatory biomarkers and metabolites: The Nor-COAST study. (external link)

Academic literature review

• Per Magne Ueland; Jørn Schneede (2008). Måling av metylmalonsyre, homocystein og metionin ved kobalamin- og folatmangel og homocystinuri. (external link)
• Klaus Meyer; Per Magne Ueland (2011). Use of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry for multiplex genotyping. (external link)
• Simon M. Collin; Chris Metcalfe; Helga Refsum et al. (2010). Circulating folate, vitamin B-12, homocysteine, vitamin B-12 transport proteins, and risk of prostate cancer: a case-control study, systematic review, and meta-analysis. (external link)
• Jin Young Park; Stein Emil Vollset; Alida Melse-Boonstra et al. (2013). Dietary intake and biological measurement of folate: A qualitative review of validation studies. (external link)
• Shu-Chun Chuang; Matteo Rota; Mark J. Gunter et al. (2013). Quantifying the dose-response relationship between circulating folate concentrations and colorectal cancer in cohort studies: a meta-analysis based on a flexible meta-regression model. (external link)
• Per Magne Ueland; Arve Ulvik; Luisa Rios-Avila et al. (2015). Direct and functional biomarkers of vitamin B6 status. (external link)
• Ligi Paul; Per Magne Ueland; Jacob Selhub (2013). Mechanistic perspective on the relationship between pyridoxal 5'-phosphate and inflammation. (external link)
• Per Magne Ueland; Adrian Mccann; Øivind Midttun et al. (2017). Inflammation, vitamin B6 and related pathways. (external link)
• 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. (external link)
• Lynn B. Bailey; Patrick J. Stover; Helene McNulty et al. (2015). Biomarkers of nutrition for development-Folate review. (external link)
• Anne-Lise Bjørke Monsen; Per Magne Ueland (2023). Vitamin B<inf>6</inf>: a scoping review for Nordic Nutrition Recommendations 2023. (external link)
• Anne-Lise Bjørke Monsen; Per Magne Ueland (2023). Folate – a scoping review for Nordic Nutrition Recommendations 2023. (external link)
• Helga Refsum; A. David Smith; Per Magne Ueland et al. (2004). Facts and recommendations about total homocysteine determinations: An expert opinion. (external link)

See a complete overview of publications in NVA.