Browsing NTNU Open by Author "Melhus, Håkan"

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    • Causal relationship between obesity and vitamin D status: bi-directional Mendelian randomization analysis of multiple cohorts 

      Vimaleswaran, KS; Berry, DJ; Lu, C; Tikkanen, E; Pilz, Stefan; Hiraki, LT; Cooper, JD; Dastani, Z; Li, R; Houston, Denise; Wood, Andrew R.; Michaëlsson, Karl; Vandenput, Liesbeth; Zgaga, Lina; Yerges-Armstrong, Laura M.; McCarthy, Mark I.; Dupuis, Josée; Kaakinen, Marika; Kleber, Marcus E.; Jameson, Karen; Arden, Nigel; Raitakari, Olli; Vikari, Jorma; Lohman, Kurt K.; Ferrucci, Luigi; Melhus, Håkan; Ingelsson, Erik; Byberg, Liisa; Lind, Lars; Lorentzon, Mattias; Salomaa, Veikko; Campbell, Harry; Dunlop, Malcolm; Mitchell, Braxton D.; Herzig, Karl-Heinz; Pouta, Anneli; Hartikainen, Anna-Liisa; Kvaløy, Kirsti; Midthjell, Kristian; Hveem, Kristian; Platou, Carl Geoffrey Parrinder; Streeten, Elizabeth A.; Theodoratou, Evropi; Jula, Antti; Wareham, Nicholas J.; Ohlsson, Claes; Frayling, Timothy M.; Kritchevsky, Stephen B.; Spector, Timothy D.; Richards, J. Brent; Lehtimäki, Terho; Ouwehand, Willem H.; Kraft, Peter; Cooper, Cyrus; Loos, RJF (Journal article; Peer reviewed, 2013)
      Background Obesity is associated with vitamin D deficiency, and both are areas of active public health concern. We explored the causality and direction of the relationship between body mass index (BMI) and 25-hydroxyvitamin ...

    • Vitamin D and cognitive function: A Mendelian randomisation study 

      Maddock, Jane; Zhou, Ang; Cavadino, Alana; Kuźma, Elżbieta; Bao, Yanchun; Smart, Melissa C.; Saum, Kai-Uwe; Schöttker, Ben; Engmann, Jorgen; Kjærgaard, Marie; Karhunen, Ville; Zhan, Yiqiang; Lehtimäki, Terho; Rovio, Suvi P.; Byberg, Liisa; Lahti, Jari; Marques-Vidal, Pedro; Sen, Abhijit; Perna, Laura; Schirmer, Henrik; Singh-Manoux, Archana; Auvinen, Juha; Hutri-Kähönen, Nina; Kähönen, Mika; Kilander, Lena; Räikkönen, Katri; Melhus, Håkan; Ingelsson, Erik; Guessous, Idris; Petrovic, Katja E.; Schmidt, Helena; Schmidt, Reinhold; Vollenweider, Peter; Lind, Lars; Eriksson, Johan G.; Michaëlsson, Karl; Raitakari, Olli T; Hägg, Sara; Pedersen, Nancy L.; Herzig, Karl-Heinz; Järvelin, Marjo-Riitta; Veijola, Juha; Kivimäki, Mika; Jorde, Rolf; Brenner, Hermann; Kumari, Meena; Power, Chris; Llewellyn, David J.; Hyppönen, Elina (Journal article; Peer reviewed, 2017)
      The causal nature of the association between hypovitaminosis D and poor cognitive function in mid- to later-life is uncertain. Using a Mendelian randomisation(MR) approach, we examined the causal relationship between 25(OH)D ...