Browsing Bergen Open Research Archive by Author "Midttun, Øivind"

Now showing items 41-52 of 52

    • Pre-diagnostic circulating concentrations of fat-soluble vitamins and risk of glioma in three cohort studies 

      Yue, Yiyang; Creed, Jordan H.; Cote, David J.; Stampfer, Meir J.; Wang, Molin; Midttun, Øivind; McCann, Adrian; Ueland, Per Magne; Furtado, Jeremy; Egan, Kathleen; Smith-Warner, Stephanie A. (Journal article; Peer reviewed, 2021)
      Few prospective studies have evaluated the relation between fat-soluble vitamins and glioma risk. Using three cohorts—UK Biobank (UKB), Nurses’ Health Study (NHS), and Health Professionals Follow-Up Study (HPFS), we ...

    • Prognostic impact of vitamin B6 metabolism in lung cancer 

      Galluzzi, Lorenzo; Vitale, Ilio; Senovilla, Laura; Olaussen, Ken André; Pinna, Guillaume; Eisenberg, Tobias; Goubar, Aïcha; Martins, Isabelle; Michels, Judith; Kratassiouk, Guerorgui; Carmona-Gutierrez, Didac; Scoazec, Marie; Vacchelli, Erika; Schlemmer, Frederic; Kepp, Oliver; Shen, Sheshi; Tailler, Maximilien; Niso-Santano, Mireia; Morselli, Eugenia; Criollo, Alfredo; Adjemian, Sandy; Jemaa, Mohamed; Chaba, Kariman; Pailleret, Claire; Michaud, Mickaël; Pietrocola, Federico; Tajeddine, Nicolas; Rouge, Thibault de La Motte; Araujo, Natalia; Morozova, Nadya; Robert, Thomas; Ripoche, Hugues; Commo, Frederic; Besse, Benjamin; Validire, Pierre; Fouret, Pierre; Robin, Angélique; Dorvault, Nicolas; Girard, Philippe; Gouy, Sébastien; Pautier, Patricia; Jägemann, Nora; Nickel, Ann-Christin; Marsili, Sabrina; Paccard, Caroline; Servant, Nicolas; Hupé, Philippe; Behrens, Carmen; Behnam-Motlagh, Paviz; Kohno, Kimitoshi; Cremer, Isabelle; Damotte, Diane; Alifano, Marco; Midttun, Øivind; Ueland, Per Magne; Lazar, Vladimir; Dessen, Philippe; Zischka, Hans; Chatelut, Etienne; Castedo, Maria; Madeo, Frank; Barillot, Emmanuel; Thomale, Jürgen; Wistuba, Ignacio Ivan; Sautes-Fridman, Catherine; Zitvogel, Laurence; Soria, Jean-Charles; Harel-Bellan, Annick; Kroemer, Guido (Peer reviewed; Journal article, 2012-08-30)
      Patients with non-small cell lung cancer (NSCLC) are routinely treated with cytotoxic agents such as cisplatin. Through a genome-wide siRNA-based screen, we identified vitamin B6 metabolism as a central regulator of cisplatin ...

    • The risk association of plasma total homocysteine with acute myocardial infarction is modified by serum vitamin A 

      Olsen, Thomas; Vinknes, Kathrine; Svingen, Gard Frodahl Tveitevåg; Pedersen, Eva Ringdal; Dhar, Indu; Tell, Grethe S.; Blomhoff, Rune; Ueland, Per Magne; Midttun, Øivind; Refsum, Helga; Nygård, Ottar (Peer reviewed; Journal article, 2018)
      Background. Plasma total homocysteine (tHcy) has been implicated in the development of cardiovascular disease, but the mechanisms remain unclear. Vitamin A (Vit-A) is involved in homocysteine metabolism and we therefore ...

    • Short-term treatment with a peroxisome proliferator-activated receptor α agonist influences plasma one-carbon metabolites and B-vitamin status in rats 

      Lysne, Vegard; Bjørndal, Bodil; Grinna, Mari Lausund; Midttun, Øivind; Ueland, Per Magne; Berge, Rolf Kristian; Dierkes, Jutta; Nygård, Ottar; Strand, Elin (Peer reviewed; Journal article, 2019-12-05)
      Introduction: Peroxisome proliferator-activated receptors (PPARs) have been suggested to be involved in the regulation of one-carbon metabolism. Previously we have reported effects on plasma concentrations of metabolites ...

    • Smoking and body fat mass in relation to bone mineral density and hip fracture: The Hordaland Health Study 

      Øyen, Jannike; Gjesdal, Clara Gram; Nygård, Ottar; Lie, Stein Atle; Meyer, Haakon; Apalset, Ellen M.; Ueland, Per Magne; Pedersen, Eva Kristine Ringdal; Midttun, Øivind; Vollset, Stein Emil; Tell, Grethe Seppola (Peer reviewed; Journal article, 2014-03-25)
      Lower bone mineral density (BMD) in smokers may be attributable to lower body weight or fat mass, rather than to a direct effect of smoking. We analyzed the effects of smoking exposure, assessed by plasma cotinine, and ...

    • 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 ...

    • 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 ...

    • Urinary excretion of homocysteine thiolactone and the risk of acute myocardial infarction in coronary artery disease patients: the WENBIT trial 

      Borowczyk, Kamila; Piechocka, Justyna; Głowacki, Rafał; Dhar, Indu; Midttun, Øivind; Tell, Grethe S.; Ueland, Per Magne; Nygård, Ottar; Jakubowski, Hieronim (Peer reviewed; Journal article, 2018)
      Objectives: No individual homocysteine (Hcy) metabolite has been studied as a risk marker for coronary artery disease (CAD). Our objective was to examine Hcy‐thiolactone, a chemically reactive metabolite generated by ...

    • 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 

      Drotningsvik, Aslaug; Midttun, Øivind; Vikøren, Linn Anja Slåke; McCann, Adrian; Ueland, Per Magne; Mellgren, Gunnar; Gudbrandsen, Oddrun Anita (Peer reviewed; Journal article, 2019)
      Kidney function affects amino acid metabolism and vitamin status. The aims of the present study were to investigate urine and plasma concentrations of amino acids as well as plasma vitamin status in rats with impaired renal ...

    • Using metabolic profiling and gene expression analyses to explore molecular effects of replacing saturated fat with polyunsaturated fat-a randomized controlled dietary intervention study 

      Ulven, Stine Marie; Christensen, Jacob J.; Nygård, Ottar; Svardal, Asbjørn M.; Leder, Lena; Ottestad, Inger; Lysne, Vegard; Laupsa-Borge, Johnny; Ueland, Per Magne; Midttun, Øivind; Meyer, Klaus; McCann, Adrian; Andersen, Lene Frost; Holven, Kirsten Bjørklund (Peer reviewed; Journal article, 2019-04-26)
      Background: Replacing dietary saturated fatty acids (SFAs) with polyunsaturated fatty acids (PUFA) reduces the plasma low-density lipoprotein (LDL) cholesterol and subsequently the risk of cardiovascular disease. However, ...

    • 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 ...

    • Vitamin status among breastfed infants in Bhaktapur, Nepal 

      Ulak, Manjeswori; Chandyo, Ram Krishna; Thorne-Lyman, Andrew L.; Henjum, Sigrun; Ueland, Per Magne; Midttun, Øivind; Shrestha, Prakash S.; Fawzi, Wafaie W.; Graybill, Lauren; Strand, Tor A (Peer reviewed; Journal article, 2016-03-08)
      Vitamin deficiencies are known to be common among infants residing in low- and middle-income countries but relatively few studies have assessed several biochemical parameters simultaneously. The objective of the study was ...