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A causal relationship between uric acid and diabetic macrovascular disease in Chinese type 2 diabetes patients: A Mendelian randomization analysis

孟德尔随机化 医学 大血管病 尿酸 糖尿病 内科学 单核苷酸多态性 2型糖尿病 胃肠病学 内分泌学 基因型 遗传学 遗传变异 生物 基因
作者
Dandan Yan,Jie Wang,Feng Jiang,Rong Zhang,Tao Wang,Shiyun Wang,Danhong Peng,Zhen He,Haibing Chen,Yuqian Bao,Cheng Hu,Weiping Jia
出处
期刊:International Journal of Cardiology [Elsevier]
卷期号:214: 194-199 被引量:33
标识
DOI:10.1016/j.ijcard.2016.03.206
摘要

Background As the association between uric acid and macrovascular disease has been heavily debated, we aimed to confirm whether there is a causal relationship between uric acid and diabetic macrovascular disease through Mendelian randomization analysis. Methods In 3207 type 2 diabetes patients, seventeen SNPs (single nucleotide polymorphisms) related to uric acid were genotyped. A weighted GRS (genetic risk score) was calculated using selected SNPs and the strength of their effects on uric acid levels. Diabetic macrovascular disease was diagnosed through vascular ultrasound, magnetic resonance imaging or other clinical evidence. Associations of diabetic macrovascular disease with uric acid and weighted GRS were evaluated separately. Results In total participants and among females, the prevalence of diabetic macrovascular disease was significantly higher in hyperuricemic group than in normouricemic group, and uric acid was associated with diabetic macrovascular disease (OR = 1.068, p = 0.0349; OR = 1.122, p = 0.0158). The prevalence of diabetic macrovascular disease increased with the weighted GRS in a J-shaped manner for the females. The weighted GRS was positively correlated with uric acid in total population, male patients and female patients (β = 0.203, p < 0.0001; β = 0.255, p < 0.0001; β = 0.142, p < 0.0001, respectively). The weighted GRS was significantly associated with diabetic macrovascular disease in female patients (OR = 1.184, p = 0.0039). Among females, the observed association between weighted GRS and diabetic macrovascular disease was greater than predicted. Conclusions Using the uric acid-related weighted GRS as an instrumental variable for Mendelian randomization analysis, our study provided an evidence for causal relationship between uric acid and diabetic macrovascular disease in Chinese females with type 2 diabetes mellitus.
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