• 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 ...
    • Markers of vitamin B6 status and metabolism as predictors of incident cancer: The Hordaland Health Study. 

      Zuo, Hui; Ueland, Per Magne; Eussen, Simone; Tell, Grethe Seppola; Vollset, Stein Emil; Nygård, Ottar; Midttun, Øivind; Meyer, Klaus; Ulvik, Arve (Peer reviewed; Journal article, 2014-11-26)
      Dietary intake and/or circulating concentrations of vitamin B6 have been associated with risk of cancer, but results are inconsistent and mechanisms uncertain. Pyridoxal 5'-phosphate (PLP) is the most commonly used marker ...
    • The PAr index, an indicator reflecting altered vitamin B-6 homeostasis, is associated with long-term risk of stroke in the general population: the Hordaland Health Study (HUSK) 

      Zuo, Hui; Tell, Grethe S.; Ueland, Per Magne; Nygård, Ottar; Vollset, Stein Emil; Midttun, Øivind; Meyer, Klaus; Ulvik, Arve (Peer reviewed; Journal article, 2018-01)
      Background: Vitamin B-6 homeostasis is altered during inflammation and immune activation. It is unknown whether altered vitamin B-6 homeostasis is associated with the risk of stroke. Objective: We investigated the relation ...
    • Plasma Biomarkers of Inflammation, the Kynurenine Pathway, and Risks of All-Cause, Cancer, and Cardiovascular Disease Mortality. The Hordaland Health Study 

      Zuo, Hui; Ueland, Per Magne; Ulvik, Arve; Eussen, Simone; Vollset, Stein Emil; Nygård, Ottar; Midttun, Øivind; Theofylaktopoulou, Despoina; Meyer, Klaus; Tell, Grethe Seppola (Peer reviewed; Journal article, 2016)
      We aimed to evaluate 10 biomarkers related to inflammation and the kynurenine pathway, including neopterin, kynurenine:tryptophan ratio, C-reactive protein, tryptophan, and 6 kynurenines, as potential predictors of all-cause ...
    • Plasma concentrations and dietary intakes of choline and betaine in association with atrial fibrillation risk: Results from 3 prospective cohorts with different health profiles 

      Zuo, Hui; Svingen, Gard Frodahl Tveitevåg; Tell, Grethe S.; Ueland, Per Magne; Vollset, Stein Emil; Pedersen, Eva Ringdal; Ulvik, Arve; Meyer, Klaus; Nordrehaug, Jan Erik; Nilsen, Dennis W.T.; Bønaa, Kaare; Nygård, Ottar (Peer reviewed; Journal article, 2018)
      Background: Although choline metabolism has been associated with atherosclerotic heart disease, less research attention has been paid to the associations of choline and its oxidative metabolite betaine with cardiac ...
    • Smoking, plasma cotinine and risk of atrial fibrillation: the Hordaland Health Study 

      Zuo, Hui; Nygård, Ottar; Vollset, Stein Emil; Ueland, Per Magne; Ulvik, Arve; Midttun, Øivind; Meyer, Klaus; Igland, Jannicke; Sulo, Gerhard; Tell, Grethe S. (Peer reviewed; Journal article, 2018-01)
      Background: Cigarette smoking has been identified as a major modifiable risk factor for coronary heart disease and mortality. However, findings on the relationship between smoking and atrial fibrillation (AF) have been ...
    • 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 ...