期刊
EUROPEAN JOURNAL OF CLINICAL NUTRITION
卷 63, 期 6, 页码 802-804出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ejcn.2008.55
关键词
VDR; vitamin D; pregnancy; birth weight
资金
- Australian National Health and Medical Research Council (NHMRC)
- Victorian Health Promotion Foundation (VicHealth)
- NHMRC [350250]
Background/Objectives: We tested the hypothesis that the relationship between maternal 25-hydroxyvitamin D (25-(OH)D) and offspring birth size differs according to offspring vitamin D receptor (VDR) genotype (Apa1, Bsm1, Fok1 or Taq1). Subjects/Methods: Mothers of 354 singleton babies had serum 25-(OH) D concentration measured at 28-30 weeks of gestation and consented to measurement of their babies soon after birth. DNA was extracted from the babies' Guthrie cards. Results: There was evidence of effect modification by infant FokI genotype. Babies of deficient mothers had lower birth weight with FF or Ff, but not ff genotype (P-value for interaction after adjustment for potential confounding factors = 0.02), but thicker subscapular and suprailiac skinfolds with ff, but not FF or Ff genotype (P = 0.008 and 0.02, respectively). Sample size was insufficient to investigate effect modification by the other VDR polymorphisms. Conclusions: These preliminary findings suggest that studies of maternal vitamin D status and birth size may need to take VDR genotype into account. European Journal of Clinical Nutrition (2009) 63, 802-804; doi:10.1038/ejcn.2008.55; published online 19 November 2008
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