Key clinical point: Migraine may have a protective effect against some cardiovascular diseases, such as coronary artery disease (CAD) and ischemic stroke, in this Mendelian randomization (MR) analysis, with coronary atherosclerosis (CA) and myocardial infarction (MI), reducing the risk for migraine in reverse MR analysis.
Major findings: Genetically predicted risk of migraine was associated with a lower risk for CAD (odds ratio [OR] 0.881; P = .023) and ischemic stroke (OR 0.912; P = .006). Reciprocally, CA (OR 0.865; P = .001) and MI (OR 0.798; P = .012) were associated with a lower risk for migraine.
Study details: This bidirectional MR study analyzed the causal effect of migraine on CVD using data from 873,341 and 554,569 individuals, and the causal effect of CVD on migraine using data from 484,598 and 463,010 individuals, using large-scale Genome-Wide Association Study databases.
Disclosure: The study was supported by the National Natural Science Foundation of China, and others. The authors reported no conflicts of interest.
Source: Duan X, Du X, Zheng G, et al. Causality between migraine and cardiovascular disease: A bidirectional Mendelian randomization study. J Headache Pain. 2024;25:130 (Aug 13) . doi: 10.1186/s10194-024-01836-w Source