Blar i forfatter Det helsevitenskapelige fakultet "Durazo-Arvizu, Ramon A."

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    • Seasonal changes in vitamin D-effective UVB availability in Europe and associations with population serum 25-hydroxyvitamin D 

      O'Neill, Colette M; Kazantzidis, Andreas; Ryan, Mary J; Barber, Niamh; Sempos, Christopher T.; Durazo-Arvizu, Ramon A.; Jorde, Rolf; Grimnes, Guri; Eiriksdottir, Gudny; Gudnason, Vilmundur; Cotch, Mary Frances; Kiely, Mairead; Webb, Ann R; Cashman, Kevin D (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-30)
      Low vitamin D status is common in Europe. The major source of vitamin D in humans is ultraviolet B (UVB)-induced dermal synthesis of cholecalciferol, whereas food sources are believed to play a lesser role. Our objectives were to assess UVB availability (Jm−2) across several European locations ranging from 35° N to 69° N, and compare these UVB data with representative population serum 25-hydroxyvitamin ...

    • Vitamin D deficiency in Europe: pandemic? 

      Cashman, Kevin D.; Dowling, Kirsten G.; Škrabáková, Zuzana; Gonzalez-Gross, Marcela; Valtueña, Jara; De Henauw, Stefaan; Moreno, Luis; Damsgaard, Camilla T.; Michaelsen, Kim F.; Mølgaard, Christian; Jorde, Rolf; Grimnes, Guri; Moschonis, George; Mavrogianni, Christina; Manios, Yannis; Thamm, Michael; Mensink, Gert B.M.; Rabenberg, Martina; Busch, Markus A.; Cox, Lorna; Meadows, Sarah; Goldberg, Gail; Prentice, Ann; Dekker, Jacqueline M.; Nijpels, Giel; Pilz, Stefan; Swart, Karin M.; Van Schoor, Natasja M.; Lips, Paul; Eiriksdóttir, Gudny; Gudnason, Vilmundur; Cotch, Mary Frances; Koskinen, Seppo; Lamberg-Allardt, Christel; Durazo-Arvizu, Ramon A.; Sempos, Christopher T.; Kiely, Mairead (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-02-10)
      Background:<br>Vitamin D deficiency has been described as being pandemic, but serum 25-hydroxyvitamin D [25(OH)D] distribution data for the European Union are of very variable quality. The NIH-led international Vitamin D Standardization Program (VDSP) has developed protocols for standardizing existing 25(OH)D values from national health/nutrition surveys.<br>Objective:<br>This study applied VDSP ...