Browsing Bergen Open Research Archive by Author "Ueland, Per Magne"
Now showing items 41-60 of 101
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Effects of vitamin B12 supplementation on neurodevelopment and growth in Nepalese Infants: A randomized controlled trial
Strand, Tor A; Ulak Chandyo, Manjeswori; Hysing, Mari; Ranjitkar, Suman; Kvestad, Ingrid; Shrestha, Merina; Ueland, Per Magne; McCann, Adrian; Shrestha, Prakash S; Shrestha, Laxman P.; Chandyo, Ram K. (Journal article; Peer reviewed, 2020)Background Vitamin B12 deficiency is common and affects cell division and differentiation, erythropoiesis, and the central nervous system. Several observational studies have demonstrated associations between biomarkers ... -
Elevated plasma cystathionine is associated with increased risk of mortality among patients with suspected or established coronary heart disease
Dhar, Indu; Lysne, Vegard; Svingen, Gard Frodahl Tveitevåg; Ueland, Per Magne; Gregory, Jesse F.; Bønaa, Kaare Harald; Nygård, Ottar (Journal article; Peer reviewed, 2019)Background Elevated circulating cystathionine levels are related to atherosclerotic cardiovascular disease, a leading cause of death globally. Objective We investigated whether plasma cystathionine was associated with ... -
Epidemiology of 40 blood biomarkers of one-carbon metabolism, vitamin status, inflammation, and renal and endothelial function among cancer-free older adults
Zahed, Hana; Johansson, Mattias; Ueland, Per Magne; Midttun, Øivind; Milne, Roger L.; Giles, Graham G.; Manjer, Jonas; Sandsveden, Malte; Langhammer, Arnulf; Sørgjerd, Elin Pettersen; Grankvist, Kjell; Johansson, Mikael; Freedman, Neal D.; Huang, Wen-Yi; Chen, Chu; Prentice, Ross; Stevens, Victoria L.; Wang, Ying; Le Marchand, Loic; Wilkens, Lynne R.; Weinstein, Stephanie J.; Albanes, Demetrius; Cai, Qiuyin; Blot, William J.; Arslan, Alan A.; Zeleniuch-Jacquotte, Anne; Shu, Xiao-Ou; Zheng, Wei; Yuan, Jian-Min; Koh, Woon-Puay; Visvanathan, Kala; Sesso, Howard D.; Zhang, Xuehong; Gaziano, J. Michael; Fanidi, Anouar; Muller, David; Brennan, Paul; Guida, Florence; Robbins, Hilary A. (Journal article; Peer reviewed, 2021)Imbalances of blood biomarkers are associated with disease, and biomarkers may also vary non-pathologically across population groups. We described variation in concentrations of biomarkers of one-carbon metabolism, vitamin ... -
Exploratory analyses on the effect of time since last meal on concentrations of amino acids, lipids, one-carbon metabolites, and vitamins in the Hordaland Health Study
Anfinsen, Åslaug Matre; Rosendahl-Riise, Hanne; Nygård, Ottar Kjell; Tell, Grethe S.; Ueland, Per Magne; Ulvik, Arve; McCann, Adrian; Dierkes, Jutta; Lysne, Vegard (Journal article; Peer reviewed, 2023)Purpose Dietary intake may have pronounced effects on circulating biomarker concentrations. Therefore, the aim was to provide a descriptive overview of serum metabolite concentrations in relation to time since last meal, ... -
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
Bratlie, Marianne; Hagen, Ingrid Valheim; Helland, Anita; Midttun, Øivind; Ulvik, Arve; Rosenlund, Grethe; Sveier, Harald; Mellgren, Gunnar; Ueland, Per Magne; Gudbrandsen, Oddrun Anita (Journal article; Peer reviewed, 2020)Low serum concentrations of several vitamins have been linked to increased risk of diseases including insulin resistance and type 2 diabetes (T2D). Fish is a good source of several vitamins, and the prevalence of T2D is ... -
Glycated hemoglobin and long-term prognosis in patients with suspected stable angina pectoris without diabetes mellitus: A prospective cohort study
Rebnord, Eirik Wilberg; Pedersen, Eva Kristine Ringdal; Strand, Elin; Svingen, Gard Frodahl Tveitevåg; Meyer, Klaus; Schartum-Hansen, Hall; Løland, Kjetil Halvorsen; Seifert, Reinhard; Ueland, Per Magne; Nilsen, Dennis W. T.; Nordrehaug, Jan Erik; Nygård, Ottar (Peer reviewed; Journal article, 2015-05)Objective: Associations of glycated hemoglobin A1c (HbA1c) levels to incident coronary and cardiovascular events among non-diabetic patients with coronary artery disease are unclear. We investigated relations of HbA1c to ... -
Healthy Nordic diet and associations with plasma concentrations of metabolites in the choline oxidation pathway: a cross-sectional study from Northern Sweden
Hesselink, André; Winkvist, Anna; Lindahl, Bernt; Ueland, Per Magne; Schneede, Jørn; Johansson, Ingegerd; Karlsson, Therese (Journal article; Peer reviewed, 2023-05-17)Background: The choline oxidation pathway and metabolites involved have been linked to diseases including cardiovascular disease, type 2 diabetes and cancer. A healthy Nordic diet is a recently defined dietary pattern ... -
High neopterin and IP-10 levels in cerebrospinal fluid are associated with neurotoxic tryptophan metabolites in acute central nervous system infections
Quist-Paulsen, Else; Aukrust, Pål; Kran, Anne-Marte Bakken; Dunlop, Oona Borghild; Ormaasen, Vidar; Stiksrud, Birgitte; Midttun, Øivind; Ueland, Thor; Ueland, Per Magne; Mollnes, Tom Eirik; Dyrhol-Riise, Anne Ma (Peer reviewed; Journal article, 2018-11-23)Background The host response to intruders in the central nervous system (CNS) may be beneficial but could also be harmful and responsible for neurologic symptoms and sequelae in CNS infections. This immune response induces ... -
Higher concentrations of kynurenic acid in CSF are associated with the slower clinical progression of Alzheimer's disease
Knapskog, Anne Brita; Aksnes, Mari; Edwin, Trine Holt; Ueland, Per Magne; Ulvik, Arve; Fang, Fei; Eldholm, Rannveig Sakshaug; Halaas, Nathalie Bodd; Saltvedt, Ingvild Tina; Giil, Lasse Melvær; Watne, Leiv (Journal article; Peer reviewed, 2023)Introduction: The kynurenine pathway's (KP) malfunction is closely related to Alzheimer's disease (AD), for antagonistic kynurenic acid (KA) and agonistic quinolinic acid act on the N-methyl-D-aspartate receptor, a possible ... -
Impact of HIV and type 2 diabetes on gut microbiota diversity, tryptophan catabolism and endothelial dysfunction
Hoel, Hedda Benedicte; Hove-Skovsgaard, Malene; Hov, Johannes Espolin Roksund; Gaardbo, Julie Christine; Holm, Kristian; Kummen, Martin; Rudi, Knut; Nwosu, Felix; Valeur, Jørgen; Gelpi, Marco; Seljeflot, Ingebjørg; Ueland, Per Magne; Gerstoft, Jan; Ullum, Henrik; Aukrust, Pål; Nielsen, Susanne Dam; Trøseid, Marius (Peer reviewed; Journal article, 2018-04-30)HIV infection and type 2 diabetes are associated with altered gut microbiota, chronic inflammation, and increased cardiovascular risk. We aimed to investigate the combined effect of these diseases on gut microbiota composition ... -
Impact of Pre-Pregnancy BMI on B Vitamin and Inflammatory Status in Early Pregnancy: An Observational Cohort Study
Monsen, Anne Lise Bjørke; Ulvik, Arve; Nilsen, Roy Miodini; Midttun, Øivind; Roth, Christine; Magnus, Per; Stoltenberg, Camilla; Vollset, Stein Emil; Reichborn-Kjennerud, Ted; Ueland, Per Magne (Peer reviewed; Journal article, 2016-11-30)Maternal nutrition and inflammation have been suggested as mediators in the development of various adverse pregnancy outcomes associated with maternal obesity. We have investigated the relation between pre-pregnancy BMI, ... -
Impaired glucose utilization in the brain of patients with delirium following hip fracture
Titlestad, Irit; Watne, Leiv; Caplan, Gideon A.; McCann, Adrian; Ueland, Per Magne; Neerland, Bjørn Erik; Myrstad, Marius; Halaas, Nathalie Bodd; Pollmann, Christian Thomas; Henjum, Kristi; Ranhoff, Anette Hylen; Solberg, Lene Bergendal; Figved, Wender; Cunningham, Colm; Melvær, Giil Lasse (Journal article; Peer reviewed, 2024)Alterations in brain energy metabolism have long been proposed as one of several neurobiological processes contributing to delirium. This is supported by previous findings of altered CSF lactate and neuron-specific enolase ... -
Inflammation, sex, blood pressure changes and hypertension in midlife: the Hordaland Health Study
Kringeland, Ester Anne; Gerdts, Eva; Ulvik, Arve; Tell, Grethe S.; Igland, Jannicke; Haugsgjerd, Teresa Risan; Ueland, Per Magne; Midtbø, Helga Bergljot (Journal article; Peer reviewed, 2023)Our aim was to test sex-specific associations of circulating markers of inflammation with blood pressure (BP) and incident hypertension in midlife. Participants in the Hordaland Health study (n = 3280, 56% women, mean age ... -
Inflammatory markers, the tryptophan-kynurenine pathway, and Vitamin B status after bariatric surgery
Christensen, Monika; Fadnes, Dag Jone Stokke; Røst, Therese Halvorsen; Pedersen, Eva Ringdal; Andersen, John Roger; Våge, Villy; Ulvik, Arve; Midttun, Øivind; Ueland, Per Magne; Nygård, Ottar; Mellgren, Gunnar (Peer reviewed; Journal article, 2018-02-05)Objective: Obesity is associated with increased inflammation and insulin resistance. In conditions with chronic immune activation, low plasma vitamin B6-levels are described, as well as an increased kynurenine:tryptophan-ratio ... -
Interferon (IFN)-γ-mediated inflammation and the kynurenine pathway in relation to bone mineral density: the Hordaland Health Study
Apalset, Ellen M.; Gjesdal, Clara Gram; Ueland, Per Magne; Midttun, Øyvind; Ulvik, Arve; Eide, Geir Egil; Meyer, Klaus; Tell, Grethe Seppola (Peer reviewed; Journal article, 2014-04-24)The risk of osteoporosis increases in inflammatory disorders. In cell-mediated immune activation, interferon (IFN)-γ stimulates macrophage release of neopterin and increases the activity of indoleamine 2,3-dioxygenase ... -
Interferon gamma (IFN-γ)-mediated inflammation and the kynurenine pathway in relation to risk of hip fractures: The Hordaland Health Study
Apalset, Ellen M.; Gjesdal, Clara Gram; Ueland, Per Magne; Øyen, Jannike; Meyer, Klaus; Midttun, Øivind; Eide, Geir Egil; Tell, Grethe Seppola (Peer reviewed; Journal article, 2014-05-10)Summary The cytokine interferon gamma (IFN-γ) stimulates neopterin release and tryptophan degradation into kynurenines through the kynurenine pathway. High levels of neopterin were associated with increased hip fracture ... -
Interferon-γ–induced inflammatory markers and the risk of cancer: The Hordaland Health Study
Zuo, Hui; Tell, Grethe Seppola; Vollset, Stein Emil; Ueland, Per Magne; Nygård, Ottar; Midttun, Øivind; Meyer, Klaus; Ulvik, Arve; Eussen, Simone (Peer reviewed; Journal article, 2014-06-19)Background It has been reported that interferon-γ (IFN-γ)–induced inflammatory markers, such as circulating neopterin and kynurenine-to-tryptophan ratio (KTR), are increased in patients with cancer and are also a predictor ... -
The Kynurenine Pathway Is Upregulated by Methyl-deficient Diet and Changes Are Averted by Probiotics
Tillmann, Sandra; Awwad, Hussain M.; MacPherson, Chad W.; Happ, Denise F.; Treccani, Giulia; Geisel, Juergen; Tompkins, Thomas A.; Ueland, Per Magne; Wegener, Gregers; Obeid, Rima (Journal article; Peer reviewed, 2021)Scope Probiotics exert immunomodulatory effects and may influence tryptophan metabolism in the host. Deficiency of nutrients related to C1 metabolism might stimulate inflammation by enhancing the kynurenine pathway. This ... -
Kynurenine Pathway Metabolites in the Blood and Cerebrospinal Fluid Are Associated with Human Aging
Solvang, Stein-Erik Hafstad; Hodge, Allison; Watne, Leiv; Cabral-Marques, Otavio; Nordrehaug, Jan Erik; Giles, Graham G.; Dugué, Pierre-Antoine; Nygård, Ottar Kjell; Ueland, Per Magne; McCann, Adrian; Idland, Ane-Victoria; Midttun, Øivind; Ulvik, Arve; Halaas, Nathalie Bodd; Tell, Grethe S.; Melvær, Giil Lasse (Journal article; Peer reviewed, 2022)The kynurenine pathway is implicated in aging, longevity, and immune regulation, but longitudinal studies and assessment of the cerebrospinal fluid (CSF) are lacking. We investigated tryptophan (Trp) and downstream kynurenine ... -
Kynurenines, Neuropsychiatric Symptoms, and Cognitive Prognosis in Patients with Mild Dementia
Solvang, Stein-Erik Hafstad; Nordrehaug, Jan Erik; Aarsland, Dag; Lange, Johannes; Ueland, Per Magne; McCann, Adrian; Midttun, Øivind; Tell, Grethe S.; Melvær, Giil Lasse (Journal article; Peer reviewed, 2019)Introduction: Circulating tryptophan (Trp) and its downstream metabolites, the kynurenines, are potentially neuroactive. Consequently, they could be associated with neuropsychiatric symptoms and cognitive prognosis in ...