Association of GC Variants with Bone Mineral Density and Serum VDBP Concentrations in Mexican Population.

Association of GC Variants with Bone Mineral Density and Serum VDBP Concentrations in Mexican Population.
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墨西哥人群GC变异与骨密度和血清VDBP浓度的相关性

DOI:
10.3390/genes12081176
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发表时间:
2021-07-29
期刊:
影响因子:
3.5
通讯作者:
Velázquez-Cruz R
Velázquez-Cruz R
中科院分区:
生物学3区
文献类型:
--
作者:
Rivera-Paredez B;Hidalgo-Bravo A;León-Reyes G;Antuna-Puente B;Flores YN;Salmerón J;Velázquez-Cruz R

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维生素 D 结合蛋白 (VDBP) 由 GC 基因编码,是骨代谢控制的积极参与者。然而,其主要变异对 VDBP 浓度和骨矿物质密度 (BMD) 的影响仍不清楚。我们的目的是分析主要 GC 变异对血清 VDBP 浓度和 BMD 的影响。我们从卫生工作者队列研究中招募了个人,其中包括墨西哥社会保障研究所 (IMSS) 的员工。总共包括 1853 名成年人。对单核苷酸多态性 (SNP) rs7041 和 rs4588 进行基因分型,以确定 GC 的三种最有特征的单倍型。还测量了血清 VBDP、25(OH)D 和 BMD。在女性中,与纯合 TT 相比,rs7041 的 G 等位基因与较高的 VDBP 和 BMD 相关。与 CC 纯合子相比,rs4588 的 A 等位基因与较低的 VDBP 和 BMD 相关。在男性中,GC 变异仅与 VDBP 水平相关。我们没有观察到男性和女性的游离/生物可利用 25(OH)D 与 BMD 之间存在关联。我们的结果支持 VDBP 与骨骼健康之间的关联。分别来自 rs7041 和 rs4588 的 G 和 C 等位基因与墨西哥绝经后妇女样本中的高浓度 VDBP 和 BMD 相关。
Vitamin D-binding protein (VDBP) is encoded by the GC gene and is an active participant in the control of bone metabolism. However, the effect of its major variants on VDBP concentration and bone mineral density (BMD) remains unclear. Our aim was to analyze the effect of major GC variants on serum VDBP concentration and BMD. We recruited individuals from the Health Workers Cohort Study, which includes employees of the Mexican Institute of Social Security (IMSS). A total of 1853 adults were included. The single nucleotide polymorphisms (SNPs) rs7041 and rs4588 were genotyped to identify the three best characterized haplotypes of GC. Serum VBDP, 25(OH)D and BMD were also measured. Among women, the G allele of rs7041 was associated with higher VDBP and BMD compared to homozygous TT. The A allele of rs4588 was associated with lower VDBP and BMD compared to CC homozygous. In men, GC variants were only associated with VDBP levels. We did not observe an association between free/bioavailable 25(OH)D and BMD in men and women. Our results support an association of VDBP in bone health. The G and C alleles, from rs7041 and rs4588, respectively, are associated with high concentrations of VDBP and BMD in this sample of Mexican postmenopausal women.
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