alexa Vitamin D receptor start codon polymorphism (Fok I) and bone mineral density in Chinese men and women.


Journal of Osteoporosis and Physical Activity

Author(s): Lau EM, Lam V, Li M, Ho K, Woo J

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Abstract The relationship between Fok I polymorphism of the vitamin D receptor start codon, bone mineral density (BMD) and vertebral fractures was studied in 684 Chinese men and women. A significant trend was observed only in Chinese women aged 70-79 years. The mean BMD at the total body was 0.85 +/- 0.01 g/cm2, 0.82 +/- 0.01 g/cm2 and 0.84 +/- 0.01 g/cm2 for elderly women of the FF, Ff and ff genotypes respectively (p = 0.06 by ANOVA). Similar but statistically non-significant trends were observed at the hip and spine. However, no association between BMD and the Fok I genotype was observed in younger women (aged 50-59 years) and elderly men (aged 70-79 years). In all study groups, there was no effect of an interaction between Fok I polymorphism and calcium intake on BMD (p > 0.05 for the interaction effects by two-way ANOVA). No significant association was observed between Fok I polymorphism and vertebral fracture in elderly men or women (p > 0.05 by the chi-square test). We conclude that the Fok I polymorphism may have a weak effect on the BMD of elderly Chinese women. This article was published in Osteoporos Int and referenced in Journal of Osteoporosis and Physical Activity

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