Vitamin D Status and Indices of Bone Turnover in Older European Adults

Autor: Elizabeth E.A. Simpson, Charles Coudray, Kelly M. Seamans, Lisa Scully, Isabelle Hininger-Favier, Donatella Ciarapica, Maude Andrillo-Sanchez, Angela Polito, Nathalie Meunier, Kevin D. Cashman, Barbara J. Stewart-Knox, Jacqueline M. O'Connor, Tom R. Hill
Přispěvatelé: Unité de Nutrition Humaine (UNH), Institut National de la Recherche Agronomique (INRA)-Université d'Auvergne - Clermont-Ferrand I (UdA)-Clermont Université, Department of Nutritional Science, National Institute for Research on Food and Nutrition, Laboratoire de bioénergétique fondamentale et appliquée (LBFA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes (UGA), Division of Psychology, Glasgow Caledonian University, Dynamique Musculaire et Métabolisme (DMEM), Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM), Université Joseph Fourier - Grenoble 1 (UJF)-Institut National de la Santé et de la Recherche Médicale (INSERM), Glasgow Caledonian University (GCU)
Rok vydání: 2011
Předmět:
Zdroj: International Journal for Vitamin and Nutrition Research
International Journal for Vitamin and Nutrition Research, Hogrefe, 2011, 81 (5), pp.277-285. ⟨10.1024/0300-9831/a000075⟩
International Journal for Vitamin and Nutrition Research, 2011, 81 (5), pp.277-285. ⟨10.1024/0300-9831/a000075⟩
ISSN: 1664-2821
0300-9831
DOI: 10.1024/0300-9831/a000075
Popis: An increased rate of bone turnover increases risk of osteoporotic fracture later in life. The concentration of 25-hydroxyvitamin D that contributes to an elevated rate of bone turnover in older adults is unclear. The objective of this study was to investigate the associations between 25-hydroxyvitamin D and biochemical markers of bone turnover in an older, pan-European cohort. 25-hydroxyvitamin D and serum markers of bone-formation (osteocalcin and bone-specific alkaline phosphatase) were assessed by ELISA, while urinary markers of bone-resorption (pyridinoline and deoxypyridinoline) were assessed by HPLC. Six percent, 36 %, and 64 % of subjects had 25-hydroxyvitamin D concentrations < 25, < 50, and < 80 nmol/L throughout the year, respectively. 25-hydroxyvitamin D was significantly and inversely correlated with serum bone-specific alkaline phosphatase (r = 0.119; p = 0.022) and urinary pyridinoline (r = 0.207; p < 0.0001) and deoxypyridinoline (r = 0.230; p < 0.0001). Stratification on the basis of tertiles [T] of 25-hydroxyvitamin D (< 47.6 [T1]; 47.6 - 85.8 [T2]; > 85.8 [T3] nmol/L), showed that urinary pyridinoline and deoxypyridinoline were significantly lower in subjects in the 2nd and 3rd compared to the 1st tertile (p < 0.015). Low vitamin D status (< 50 nmol/L) was associated with an increased rate of bone turnover in this older pan-European cohort.
Databáze: OpenAIRE