母性遗传对活跃的年轻成人女儿骨密度,面积和微观架构的影响
Nicole M J Boisvert1, Lauren A Burt2, Steven Boyd3
1University of Calgary, Kinesiology, Calgary, Alberta, Canada; nicole.boisvert@ucalgary.ca.
概括
骨区域和微观结构显示女儿的母性遗传性,与标准骨矿物质密度测量不同. 生活方式因素也影响这些骨特征,突出显示了遗传和环境对骨健康的综合影响.
科学领域:
- 人类遗传学 人类遗传学
- 骨生物学 骨生物学
- 图像科学科学成像科学
背景情况:
- 面积骨矿物质密度 (aBMD) 证明了母性遗传性,但对骨微架构遗传性的研究是有限的.
- 了解遗传和生活方式对骨健康的影响对于预防骨疾病至关重要.
研究的目的:
- 为了确定aBMD (DXA) 和骨微架构,体积 BMD (vBMD) 和骨面积 (HR-pQCT) 从母亲到女儿的遗传性.
- 研究母亲遗传性和女儿生活方式因素对骨参数的相互作用.
主要方法:
- 39对母女对接受了DXA和HR-pQCT扫描.
- 问卷评估了女儿的健康史,身体活动和饮食.
- 使用线性回归计算了遗传性,并使用多重回归分析了遗传性-生活方式相互作用.
主要成果:
- 骨面积 (31-46%) 和微观架构 (11-29%) 通过HR-pQCT显示出显著的母性遗传性,与DXA衍生的aBMD不同.
- 母亲遗传性和生活方式因素解释了女儿骨参数 (10-71%) 差异的很大一部分.
- 反映3D结构的HR-pQCT衍生骨参数是可遗传的,而二维aBMD则不是.
结论:
- 来自HR-pQCT的三维骨参数在年轻成人女儿中是母亲遗传的.
- 遗传遗传和生活方式选择都对骨结构和密度做出了重大贡献.
- 这项研究强调了先进的成像技术对于评估骨遗传性的重要性.
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