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Diabetologia:在每次就诊时糖化血红蛋白的变异与认知功能下降之间的关系

2020-01-30 MedSci MedSci原创

本研究的目的是探讨糖化血红蛋白的变异性与老年人认知功能下降之间的关系。

本研究的目的是探讨糖化血红蛋白的变异性与老年人认知功能下降之间的关系。

我们对两个以人群为基础的前瞻性群组(健康退休研究[HRS]和英国老龄化纵向研究[ELSA])进行了汇总分析。对包括记忆和执行功能的认知功能,在基线期和每2年进行一次评估,而在基线和每4年评估一次糖化血红蛋白水平。使用CVSD和独立于平均值(VIM)的变异性进行计算在每次就诊时HbA1c变异性(VVV)在随访期间。采用线性混合模型评估糖化血红蛋白变异性与认知功能下降之间的关系,并对人口统计学、平均糖化血红蛋白、教育、吸烟、饮酒、BMI、基线高血压、基线糖尿病状态和hdl -胆固醇进行校正。

研究显示,该研究招募了6237名参与者(58.23%的女性,平均年龄63.38±8.62),并至少进行了三次糖化血红蛋白检测。中位随访时间为10.56±1.86年。在HbA1c变异性最高的四分位数中,不考虑HbA1c的平均值,参与者的记忆下降率(-0.094SD/年,95%CI-0.185-0.003)和执行功能下降率(-0.083SD/年,95%CI-0.125-0.041)显著降低。在无糖尿病的个体中,HbA1c CV中的每1-SD增量与完全调整模型中记忆z评分下降率(-0.02995%CI-0.052-0.005)和执行功能z评分下降(-0.04995%CI-0.079-0.018)显著相关。

在本研究中,我们观察到长期糖化血红蛋白变异与非糖尿病人群的认知能力下降之间存在显著的相关性。因此,稳定血糖控制对认知功能减退率的影响值得进一步研究。

原始出处:

Zhe-Bin Yu,Yao Zhu, Association between visit-to-visit variability of HbA1c and cognitive decline: a pooled analysis of two prospective population-based cohorts

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