Browsing Registrations from Cristin by Author "Ulvik, Arve"

Now showing items 21-25 of 25

    • Plasma methylmalonic acid predicts risk of acute myocardial infarction and mortality in patients with coronary heart disease: A prospective 2-cohort study 

      Dhar, Indu; Lysne, Vegard; Ulvik, Arve; Svingen, Gard Frodahl Tveitevåg; Pedersen, Eva Kristine Ringdal; Bjørnestad, Espen Øglænd; Olsen, Thomas; Borsholm, Robert Andre; Laupsa-Borge, Johnny; Ueland, Per Magne; Tell, Grethe Seppola; Berge, Rolf Kristian; Mellgren, Gunnar; Bønaa, Kaare Harald; Nygård, Ottar Kjell (Journal article; Peer reviewed, 2023)
      Background Elevated plasma methylmalonic acid (MMA) is reported in patients with established coronary heart disease (CHD) and is considered a marker of vitamin B12 deficiency. Moreover, MMA-dependent reactions have been ...

    • Serum concentrations of amino acids and tryptophan metabolites are affected by consumption of a light breakfast: a clinical intervention study in adults with overweight or obesity 

      Hagen, Ingrid Valheim; Helland, Anita; Bratlie, Marianne; Midttun, Bjørn Øivind; McCann, Adrian; Ulvik, Arve; Mellgren, Gunnar; Ueland, Per Magne; Gudbrandsen, Oddrun Anita (Journal article; Peer reviewed, 2023)
      Background Epidemiological studies often investigate amino acids and their metabolites as biomarkers, but do not always consistently use fasting or non-fasting blood samples, or may lack information on the prandial ...

    • Systemic Activation of the Kynurenine Pathway in Graves Disease With and Without Ophthalmopathy 

      Ueland, Hans Olav; Ulvik, Arve; Løvås, Kristian; Wolff, Anette Susanne Bøe; Breivik, Lars Ertesvåg; Stokland, Ann-Elin Meling; Rødahl, Eyvind; Nilsen, Roy Miodini; Husebye, Eystein Sverre; Ueland, Grethe Åstrøm (Journal article; Peer reviewed, 2023)
      Context Graves disease (GD) is one of the most common autoimmune disorders. Recent literature has shown an immune response involving several different inflammatory related proteins in these patients. Objective This ...

    • Tryptophan catabolites as metabolic markers of vitamin B-6 status evaluated in cohorts of healthy adults and cardiovascular patients 

      Ulvik, Arve; Midttun, Øivind; McCann, Adrian; Meyer, Klaus; Tell, Grethe S.; Nygård, Ottar; Ueland, Per Magne (Journal article; Peer reviewed, 2020)
      Background Vitamin B-6 status is routinely measured as pyridoxal 5′-phosphate (PLP) in plasma. Low concentrations of PLP are associated with rheumatic, cardiovascular, and neoplastic diseases. We have previously shown ...

    • Vitamin B6 catabolism and lung cancer risk: Results from the Lung Cancer Cohort Consortium (LC3) 

      Zuo, Hui; Ueland, Per Magne; Midttun, Øivind; Tell, Grethe S.; Fanidi, Anouar; Zheng, Wei; Shu, Xiao-Ou; Xiang, Yong-Bing; Wu, Jie; Prentice, Ross L.; Pettinger, Mary; Thomson, Cynthia A.; Giles, Graham G.; Hodge, Allison M.; Cai, Qiuyin; Blot, William J.; Johansson, Mikael B.; Hultdin, Johan; Grankvist, Kjell; Stevens, Victoria L.; McCullough, Marjorie L.; Weinstein, Stephanie J.; Albanes, Demetrius; Ziegler, Regina G.; Freedman, Neal David; Caporaso, Neil E.; Langhammer, Arnulf; Hveem, Kristian; Næss, Marit; Buring, Julie E.; Lee, I-Min; Gaziano, John Michael; Severi, Gianluca; Zhang, Xuehong; Stampfer, Meir Jonathan; Han, Jiali; Zeleniuch-Jacquotte, Anne; Marchand, Loïc Le; Yuan, Jian-Min; Wang, Renwei; Koh, Woon-Puay; Gao, Yutang; Ericson, Ulrika C.; Visvanathan, Kala; Jones, Michael R.; Relton, Caroline Laura; Brennan, Paul J.; Johansson, Mattias; Ulvik, Arve (Journal article; Peer reviewed, 2019-03)
      Background Increased vitamin B6 catabolism related to inflammation, as measured by the PAr index (the ratio of 4-pyridoxic acid over the sum of pyridoxal and pyridoxal-5'-phosphate), has been positively associated with ...