怀孕期间的维生素D补充剂和后代的骨微架构:对MAVIDOS随机对照试验的后期分析
Charlotte Maden1, Stefania D'Angelo2, Leo D Westbury2
1MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, UK; NIHR Southampton Biomedical Research Centre (NIHR203319), University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK.
Bone
|March 9, 2026
概括
怀孕期间服用维生素D补充剂并没有影响儿童时期后代的骨微架构. 这项研究检查了骨结构和母亲在怀孕期间接受维生素D的儿童的遗传相互作用.
科学领域:
- 儿科 儿科 儿科
- 营养科学 营养科学
- 骨生物学 骨生物学 骨生物学
背景情况:
- 以前的研究表明,怀孕期间服用维生素D补充剂会增加儿童的骨矿物质密度 (BMD).
- 对骨微观架构和遗传相互作用的影响仍未得到研究.
- 这项研究分析了一项随机对照试验 (MAVIDOS) 的后期分析.
研究的目的:
- 为了研究产前维生素D补充剂对后代骨微型架构的影响.
- 探索补充剂和维生素D代谢中的遗传变异之间的潜在相互作用.
主要方法:
- 对MAVIDOS随机化安慰剂对照试验的后期分析.
- 在6-7岁时使用HR-pQCT评估后代的骨微架构.
- 对与维生素D代谢相关的特定SNP进行基因类型的母亲和儿童.
主要成果:
- 在补充和安慰剂组之间没有观察到骨微型结构 (皮质,状,体积 BMD) 的显著差异.
- 补充剂和母体或后代遗传变异之间没有发现相互作用.
- 现型骨集群显示人体测量差异,但补充分配在集群中是相似的.
结论:
- 在6-7岁的儿童中,产前维生素D补充剂对骨微型架构没有影响.
- 遗传因素似乎没有改变维生素D补充剂对骨结构的影响.
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