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Updated: Feb 19, 2026

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基因预测的homocysteine水平和B族维生素与萨尔科佩尼亚相关的特征:从观察和孟德尔随机化分析的见解
Caizheng Yang1, Shanshan Ge2, Fangying Tian3
1Department of Nursing Shanxi Technology and Business University Taiyuan China.
Food science & nutrition
|February 18, 2026
概括
高水平的homocysteine (Hcy) 与肉症有因果关系,这是一种老年人肌肉消耗的疾病. 这项研究表明,向Hcy可能有助于预防或延迟萨科佩尼亚的发病.
科学领域:
- 老年学是一门学科.
- 代谢医学是一种代谢医学.
- 营养科学 营养科学
背景情况:
- 麻症是影响老年人健康和生活质量的重大公共卫生问题.
- 同型半氨酸 (Hcy),B族维生素和肉症之间的确切关系尚未完全理解.
- 调查这些联系对于开发有效的干预措施至关重要.
研究的目的:
- 为了研究同等氨酸 (Hcy),B族维生素 (B6,叶酸,B12) 和皮症之间的因果关系和纵向关联.
- 使用一种两阶段方法,将孟德尔随机化 (MR) 与临床队列研究相结合.
- 为了确定Hcy或B族维生素是否因果关系地影响了萨科佩尼亚的发展.
主要方法:
- 使用大型全基因组关联研究 (GWAS) 数据进行双样本孟德尔随机化 (MR) 分析.
- 对1322个人进行的回顾性临床队列研究,使用基于组的轨迹建模和考克斯回归.
- 检查了Hcy,维生素B6,叶酸和维生素B12对尾肌肉质量 (ALM),握力和步行速度的影响.
主要成果:
- 基因预测较高的Hcy水平与较低的握力和尾肌肉质量 (ALM) 有因果关系.
- 在临床队列中,较高的Hcy轨迹显著增加了患上肉症的风险.
- 在基线Hcy水平和肉症风险之间发现了持续的剂量反应关系;没有发现B族维生素的因果关系.
结论:
- 升高的同类半氨酸 (Hcy) 水平因果相关,与增加的萨科佩尼亚风险有关.
- 基于遗传证据,B族维生素 (B6,叶酸,B12) 在萨尔科佩尼亚的发展中没有显著的因果作用.
- 向homocysteine可能提供一种潜在的策略,用于预防或延迟老年人群中 Sarcopenia 的发病.
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