升高的同类半素有助于1型糖尿病脏病的进展:来自孟德尔随机化和实验验证的证据
1Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, NanChang, China.
Medicine
|February 3, 2026
概括
高水平的同类半氨酸 (Hcy) 因果上会增加1型糖尿病相关的晚期脏病 (T1DN) 的风险. 维生素B与T1DN风险没有显著关联.
科学领域:
- 遗传学 遗传学是一种遗传学.
- 代谢疾病 代谢疾病
- 腎臟病學 (nephrology) 是一種醫學.
背景情况:
- 过高homocysteinemia (高homocysteine) 是一种可疑的风险因素,为1型糖尿病相关的脏病 (T1DN).
- 同类氨酸和T1DN进展之间的直接因果关系仍然不确定.
- 研究同类氨酸和B族维生素在T1DN中的作用对于了解疾病机制至关重要.
研究的目的:
- 调查同型半氨酸 (Hcy) 和维生素B (B6,B12,叶酸) 对T1DN发展的因果作用.
- 探索Hcy-T1DN关系中的潜在调解因素.
- 评估Hcy对细胞的直接影响.
主要方法:
- 单变量和多变量门德尔随机化 (MR) 分析对19406个人的队列进行.
- 链接不平衡得分回归和局部化分析检查了遗传相关性.
- 两步MR分析确定了介导因素,而体外实验评估了Hcy对HK-2细胞的影响.
主要成果:
- 升高的Hcy水平与晚期T1DN (OR=1.33) 有因果关系,但与微专尿阶段无因果关系.
- 多变量MR证实Hcy与晚期T1DN风险相关,独立于功能和维生素B6.
- 估计的淋巴膜过率介于Hcy对T1DN影响的3.21%; 维生素B没有显著的关联.
结论:
- 高水平的同类半氨酸是1型糖尿病相关的晚期脏病的显著因果风险因素.
- 荷莫氨酸在细胞中诱导细胞毒性,这表明它具有直接的致病作用.
- 向homocysteine可能是预防T1DN进展的治疗策略.
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