在英国生物库中评估血糖控制和骨脆弱性之间的关系:观察性和单样本孟德尔随机化分析
Samuel Ghatan1, Fjorda Koromani1, Katerina Trajanoska2
1Department of Internal Medicine, Erasmus Medical Center, 3015 GD, Rotterdam, The Netherlands.
JBMR plus
|October 29, 2024
概括
降低糖化血红蛋白A1c (HbA1c) 降低了1型糖尿病中骨折的风险. 在2型糖尿病中,最佳的HbA1c水平可以减轻骨折风险,但过低或过高的水平会增加骨折风险.
科学领域:
- 内分泌学 在内分泌学.
- 代谢疾病 代谢疾病
- 骨健康 骨健康 骨健康
背景情况:
- 糖尿病,包括1型 (T1D) 和2型 (T2D),与骨折风险增加有关.
- 通过糖化血红蛋白A1c (HbA1c) 测量的血糖控制和骨矿物质密度 (BMD) 是影响糖尿病人群中骨折易受性的潜在因素.
研究的目的:
- 为了研究血糖控制 (HbA1c),部超声波衍生的骨矿物密度 (eBMD) 和T1D和T2D患者骨折风险之间的关系.
- 使用孟德尔随机化 (MR) 探索血糖控制,eBMD和骨折之间的潜在因果关系.
主要方法:
- 来自英国生物银行的大型队列 (452,131人) 的分析,评估HbA1c,eBMD和骨折数据.
- 根据HbA1c水平,糖尿病控制的分类为充分控制 (ACD) 和不充分控制 (ICD).
- 一个样本的门德尔随机化研究,以推断因果关系.
主要成果:
- 在T1D中,增加的HbA1c与更高的骨折风险有关,在ICD个体中观察到的风险最高.
- T2D显示HbA1c和骨折风险之间存在非线性关联,低HbA1c和高HbA1c水平的风险增加.
- 核磁共振分析显示,基因预测HbA1c和eBMD之间存在U形因果关系,但HbA1c和骨折风险之间没有直接因果关系.
结论:
- 建议降低HbA1c水平,以减少T1D患者骨折风险.
- 在T2D中,保持HbA1c在最佳范围内对于减轻骨折风险至关重要,因为极端水平,无论是低的还是高的,都可能是有害的.
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