Now showing items 1-20 of 42

    • 450K epigenome-wide scan identifies differential DNA methylation in newborns related to maternal smoking during pregnancy 

      Joubert, Bonnie R.; Håberg, Siri Eldevik; Nilsen, Roy Miodini; Wang, Xuting; Vollset, Stein Emil; Murphy, Susan K; Huang, Zhiqing; Hoyo, Cathrine; Midttun, Øivind; Cupul-Uicab, Lea A; Ueland, Per Magne; Wu, Michael C; Nystad, Wenche; Bell, Douglas A; Peddada, Shyamal D; London, Stephanie J (The National Institute of Environmental Health Sciences, 2012-10)
      Background: Epigenetic modifications, such as DNA methylation, due to in utero exposures may play a critical role in early programming for childhood and adult illness. Maternal smoking is a major risk factor for multiple ...
      Journal article
    • Amniotic fluid arginine from gestational weeks 13 to 15 is a predictor of birth weight, length, and head circumference 

      Jenssen, Astrid Bjørke; Ueland, Per Magne; Monsen, Anne Lise Bjørke (MDPI, 2017-12-14)
      Arginine is a constituent of proteins and a precursor for polyamines and nitric oxide, and is essential for placentation, angiogenesis, and growth. Maternal plasma arginine concentrations are found to be lower in pregnancies ...
      Journal article
    • The Association between Progression of Atherosclerosis and the Methylated Amino Acids Asymmetric Dimethylarginine and Trimethyllysine 

      Løland, Kjetil Halvorsen; Bleie, Øyvind; Borgeraas, Heidi; Strand, Elin; Ueland, Per Magne; Svardal, Asbjørn; Nordrehaug, Jan Erik; Nygård, Ottar (Public Library of Science, 2013-05-29)
      Objective: We previously showed that treatment with folic acid (FA)/B12 was associated with more rapid progression of coronary artery disease (CAD). High doses of FA may induce methylation by increasing the availability ...
      Journal article
    • B vitamin treatments modify the risk of myocardial infarction associated with a MTHFD1 polymorphism in patients with stable angina pectoris 

      Ding, Yunpeng; Pedersen, Eva Ringdal; Johansson, Stefan; Gregory III, Jesse F.; Ueland, Per Magne; Svingen, Gard Frodahl Tveitevåg; Helgeland, Øyvind; Meyer, Klaus; Fredriksen, Åse; Nygård, Ottar (Elsevier, 2016-06)
      Background: Methylenetetrahydrofolate dehydrogenase (MTHFD1) catalyzes three sequential reactions that metabolize derivatives of tetrahydrofolate (THF) in folate-dependent one-carbon metabolism. Impaired MTHFD1 flux has ...
      Journal article
    • Betaine as a determinant of postmethionine load total plasma homocysteine before and after B-Vitamin supplementation 

      Holm, Pål Ivar; Bleie, Øyvind; Ueland, Per Magne; Lien, Ernst Asbjørn; Refsum, Helga; Nordrehaug, Jan Erik; Nygård, Ottar (2004)
      Objective—Betaine is a substrate in the betaine– homocysteine methyltransferase reaction, converting homocysteine to methionine. There are only sparse data on plasma betaine as a determinant of the plasma total homocysteine ...
      Journal articlePeer reviewed
    • Bioinformatic and Genetic Association Analysis of MicroRNA Target Sites in One-Carbon Metabolism Genes 

      Stone, Nicole; Pangilinan, Faith; Molloy, Anne M.; Shane, Barry; Scott, John M.; Ueland, Per Magne; Mills, James L.; Kirke, Peader N.; Sethupathy, Praveen; Brody, Lawrence C. (Public Library of Science, 2011-07-12)
      One-carbon metabolism (OCM) is linked to DNA synthesis and methylation, amino acid metabolism and cell proliferation. OCM dysfunction has been associated with increased risk for various diseases, including cancer and ...
      Peer reviewedJournal article
    • Cellular immune activity biomarker neopterin is associated hyperlipidemia: results from a large population-based study 

      Chuang, Shu-Chun; Boeing, Heiner; Vollset, Stein Emil; Midttun, Øivind; Ueland, Per Magne; Bueno-de-Mesquita, Bas; Lajous, Martin; Fagherazzi, Guy; Boutron-Ruault, Marie-Christine; Kaaks, Rudolf; Küehn, Tilman; Pischon, Tobias; Drogan, Dagmar; Tjønneland, Anne; Overvad, Kim; Quirós, J. Ramón; Agudo, Antonio; Molina-Montes, Esther; Dorronsoro, Miren; Huerta, José María; Barricarte, Aurelio; Khaw, Kay-Tee; Wareham, Nicholas J.; Travis, Ruth C.; Trichopoulou, Antonia; Lagiou, Pagona; Trichopoulos, Dimitrios; Masala, Giovanna; Agnoli, Claudia; Tumino, Rosario; Mattiello, Amalia; Peeters, Petra H.; Weiderpass, Elisabete; Palmqvist, Richard; Ljuslinder, Ingrid; Gunter, Marc; Lu, Yunxia; Cross, Amanda J.; Riboli, Elio; Vineis, Paolo; Aleksandrova, Krasimira (BioMed Central, 2016-02-25)
      Background: Increased serum neopterin had been described in older age two decades ago. Neopterin is a biomarker of systemic adaptive immune activation that could be potentially implicated in metabolic syndrome (MetS). ...
      Journal article
    • Circulating biomarkers of one-carbon metabolism in relation to renal cell carcinoma incidence and survival 

      Johansson, Mattias; Anouar, Fanidi; Muller, David C.; Bassett, Julie K.; Midttun, Øivind; Vollset, Stein Emil; Travis, Ruth C.; Palli, Domenico; Mattiello, Amalia; Sieri, Sabina; Trichopoulou, Antonia; Lagiou, Pagona; Trichopoulos, Dimitrios; Ljungberg, Börje; Hallmans, Göran; Weiderpass, Elisabete; Skeie, Guri; Gonzalez, Carlos A.; Dorronsoro, Miren; Peeters, Petra H.; Bueno-de-Mesquita, H. B(as).; Ros, Martine M.; Ruault, Marie-Christine Boutron; Fagherazzi, Guy; Clavel, Françoise; Sanchez, Maria-Jose; Gurrea, Aurelio Barricarte; Navarro, Carmen; Quirós, J. Ramón; Overvad, Kim; Tjønneland, Anne; Aleksandrova, Krassimira; Vineis, Paolo; Gunter, Marc J.; Kaaks, Rudolf; Giles, Graham; Relton, Caroline; Riboli, Elio; Boeing, Heiner; Ueland, Per Magne; Severi, Gianluca; Brennan, Paul (Oxford University Press, 2014)
      Background The etiology of renal cell carcinoma (RCC) is only partially understood, but a metabolic component appears likely. We investigated biomarkers of one-carbon metabolism and RCC onset and survival. Methods The ...
      Journal article
    • Circulating concentrations of biomarkers and metabolites related to Vitamin status, one-carbon and the kynurenine pathways in US, Nordic, Asian, and Australian populations 

      Midttun, Øivind; Theofylaktopoulou, Despoina; Mccann, Adrian; Fanidi, Anouar; Muller, David C.; Meyer, Klaus; Ulvik, Arve; Zheng, Wei; Shu, Xiao-Ou; Xiang, Yong-Bing; Prentice, Ross; Thomson, Cynthia A.; Pettinger, Mary; Giles, Graham G.; Hodge, Allison; Cai, Qiuyin; Blot, William J.; Wu, Jie; Johansson, Mikael; Hultdin, Johan; Grankvist, Kjell; Stevens, Victoria L.; McCullough, Marjorie L.; Weinstein, Stephanie J.; Albanes, Demetrius; Langhammer, Arnulf; Hveem, Kristian; Næss, Marit; Sesso, Howard D.; Gaziano, J. Michael; Buring, Julie E.; Lee, I-Min; Severi, Gianluca; Zhang, Xuehong; Han, Jiali; Stampfer, Meir J.; Smith-Warner, Stephanie A.; Zeleniuch-Jacquotte, Anne; Le Marchand, Loic; Yuan, Jian-Min; Butler, Lesley M.; Koh, Woon-Puay; Wang, Renwei; Gao, Yu-Tang; Ericson, Ulrika; Sonestedt, Emily; Ziegler, Regina G.; Freedman, Neal D.; Visvanathan, Kala; Jones, Miranda R.; Relton, Caroline; Brennan, Paul; Johansson, Mattias; Ueland, Per Magne (Oxford University Press, 2017-06)
      Background: Circulating concentrations of biomarkers that are related to vitamin status vary by factors such as diet, fortification, and supplement use. Published biomarker concentrations have also been influenced by the ...
      Journal article
    • Circulating Vitamin D in relation to cancer incidence and survival of the head and neck and oesophagus in the EPIC cohort 

      Fanidi, Anouar; Muller, David C.; Midttun, Øivind; Ueland, Per Magne; Vollset, Stein Emil; Relton, Caroline; Vineis, Paolo; Weiderpass, Elisabete; Skeie, Guri; Brustad, Magritt; Palli, Domenico; Tumino, Rosario; Grioni, Sara; Sacerdote, Carlotta; Bueno-de-Mesquita, H. Bas; Peeters, Petra H.; Boutron-Ruault, Marie-Christine; Kvaskoff, Marina; Cadeau, Claire; Huerta, José María; Sánchez, María-José; Agudo, Antonio; Lasheras, Cristina; Quirós, J. Ramón; Chamosa, Saioa; Riboli, Elio; Travis, Ruth C; Ward, Heather; Murphy, Neil; Khaw, Kay-Tee; Trichopoulou, Antonia; Lagiou, Pagona; Papatesta, Eleni-Maria; Boeing, Heiner; Kühn, Tilman; Katzke, Verena; Steffen, Annika; Johansson, Anders; Brennan, Paul; Johansson, Mattias (Nature Publishing Group, 2016-11-04)
      Experimental and epidemiological data suggest that vitamin D play a role in pathogenesis and progression of cancer, but prospective data on head and neck cancer (HNC) and oesophagus cancer are limited. The European Prospective ...
      Journal article
    • Cosinor modelling of seasonal variation in 25-hydroxyvitamin D concentrations in cardiovascular patients in Norway 

      Degerud, Eirik Magnus Meek; Hoff, Rune; Nygård, Ottar; Strand, Elin; Nilsen, Dennis W. T.; Nordrehaug, Jan Erik; Midttun, Øivind; Ueland, Per Magne; De Vogel, Stefan; Dierkes, Jutta (Nature Publishing Group, 2016)
      Background/Objectives: Seasonal variation may reduce the validity of 25-hydroxyvitamin D (25OHD) as a biomarker of vitamin D status. Here we aimed to identify potential determinants of seasonal variation in 25OHD ...
      Journal article
    • Dietary predictors of plasma total homocysteine concentration in the Hordaland Homocysteine Study 

      Konstantinova, Svetlana V.; Vollset, Stein Emil; Berstad, Paula; Ueland, Per Magne; Drevon, Christian A.; Refsum, Helga; Tell, Grethe Seppola (Cambridge University Press, 2007)
      Established dietary predictors of plasma total homocysteine (tHcy) include folate, riboflavin, and vitamins B6 and B12, while information is scarce regarding other dietary components. The aim of this study was to examine ...
      Journal articlePeer reviewed
    • DNA Methylation Score as a Biomarker in Newborns for Sustained Maternal Smoking during Pregnancy 

      Reese, Sarah E; Zhao, Shanshan; Wu, Michael C; Joubert, Bonnie R; Parr, Christine Louise; Håberg, Siri Eldevik; Ueland, Per Magne; Nilsen, Roy Miodini; Midttun, Øivind; Vollset, Stein Emil; Peddada, Shyamal D; Nystad, Wenche; London, Stephanie J (National Institute of Environmental Health Sciences, 2017-04)
      Background: Maternal smoking during pregnancy, especially when sustained, leads to numerous adverse health outcomes in offspring. Pregnant women disproportionately underreport smoking and smokers tend to have lower follow-up ...
      Journal article
    • 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 

      Løland, Kjetil Halvorsen; Bleie, Øyvind; Strand, Elin; Ueland, Per Magne; Nordrehaug, Jan Erik; Garcia-Garcia, Hector M.; Serruys, Patrick W.; Nygård, Ottar (Public Library of Science, 2013-07-25)
      Background: Virtual Histology Intravascular Ultrasound (VH–IVUS) may be used to detect early signs of unstable coronary artery disease. Monocyte Chemoattractant Protein-1 (MCP-1) is linked with coronary atherosclerosis ...
      Journal article
    • 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 (Elsevier, 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 ...
      Journal article
    • 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 (Springer Nature, 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 ...
      Journal article
    • 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 (Springer Nature, 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 ...
      Journal article
    • 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 (MDPI, 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, ...
      Journal article
    • 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 (PLOS, 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 ...
      Journal article
    • 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 (WileyBritish Society for Immunology, 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 ...
      Journal article