• Effects of vitamin D supplementation on bone turnover markers and other bone-related substances in subjects with vitamin D deficiency 

      Jorde, Rolf; Stunes, Astrid Kamilla; Kubiak, Julia Magdalena; Joakimsen, Ragnar Martin; Grimnes, Guri; Thorsby, Per Medbøe; Syversen, Unni (Journal article; Peer reviewed, 2019)
      In observational studies, vitamin D deficiency is a risk factor for low bone density and future fractures, whereas a causal relation has been difficult to show in randomized controlled trials (RCTs). Similarly, vitamin D ...
    • Smoking and other determinants of bone turnover 

      Jorde, Rolf; Stunes, Astrid Kamilla; Kubiak, Julia Magdalena; Grimnes, Guri; Thorsby, Per Medbøe; Syversen, Unni (Journal article; Peer reviewed, 2019)
      The balance between bone resorption and formation may be assessed by measurement of bone turnover markers (BTMs), like carboxyl-terminal cross-linked telopeptide of type 1 collagen (CTX-1) and procollagen type 1 amino-terminal ...
    • 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 ...