Association of genetic variants of vit D binding protein (DBP/GC) and of the enzyme catalyzing its 25-hydroxylation (DCYP2R1) and serum vit D in postmenopausal women

Wen Xu, Jing Sun, Wenbo Wang, Xiran Wang, Yan Jiang, Wei Huang, Xin Zheng, Qiuping Wang, Zhiwei Ning, Yu Pei, Min Nie, Mei Li, Ou Wang, Xiaoping Xing, Wei Yu, Qiang Lin, Ling Xu, Weibo Xia

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OBJECTIVE: To determine if GC (group-specific component globulin) and CYP2R1 genetic variants have an association with serum 25-OHD3 levels, BMD or bone turnover markers in a population of Chinese postmenopausal women …

Smoking is a significant determinant of low serum vitamin D in young and middle-aged healthy males

Eva N. Kassi, Spiros Stavropoulos, Panayiotis Kokkoris, Antonis Galanos, Paraskevi Moutsatsou, Cleanthi Dimas, Athanasios Papatheodorou, Christos Zafeiris, George Lyritis

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OBJECTIVE: We aimed to determine the prevalence of 25(OH)D (D2 and D3 independently) inadequacy in healthy young/middle-aged men and to investigate its relationship with BMD, bone markers, demographic and lifestyle parameters such as age, BMI, smoking, alcohol consumption and dietary calcium intake …