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Myocardial infarction and stroke risks in multiple sclerosis patients: A two-sample Mendelian randomization study.

Haoxin Peng¹, Xiangrong Wu¹, Yaokai Wen²

¹Nanshan School, Guangzhou Medical University, Jingxiu Road, Panyu District, Guangzhou 511436, China; The First Affiliated Hospital of Guangzhou Medical University, Yanjiang Road, Yuexiu Distinct, Guangzhou 511436, China.

Multiple Sclerosis and Related Disorders

|January 23, 2022

Summary

Multiple sclerosis (MS) patients have an increased risk of myocardial infarction (MI). This study found a causal link between MS and MI, but not stroke, highlighting the need for proactive cardiovascular care in MS patients.

Keywords:

Causality Mendelian randomization analysis Multiple sclerosis Myocardial infarction Stroke

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Published on: May 24, 2021

Area of Science:

Cardiovascular Epidemiology
Neuroimmunology
Genetic Epidemiology

Background:

Observational studies suggest a link between multiple sclerosis (MS) and cardiovascular diseases like myocardial infarction (MI) and stroke, but findings are inconsistent.
Mendelian randomization (MR) analysis is employed to investigate potential causal relationships using large-scale genetic data.

Discussion:

The study utilized two-sample MR analysis with substantial genetic data from the International Multiple Sclerosis Genetics Consortium and cardiovascular consortia.
Results indicate a statistically significant causal association between MS and an increased risk of MI.
No significant causal association was found between MS and stroke risk.

Key Insights:

Multiple sclerosis is causally associated with a higher risk of myocardial infarction.
Genetic evidence does not support a causal link between multiple sclerosis and stroke.
Findings underscore the importance of cardiovascular risk management in multiple sclerosis patients.

Outlook:

Further research could explore the specific mechanisms linking MS and MI.
Implementing targeted cardiovascular screening and preventative strategies for MS patients is recommended.
This study provides a robust genetic basis for understanding cardiovascular comorbidities in MS.