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A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
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Association of metabolites on ischemic stroke subtypes: a 2-sample Mendelian randomization study
Jingyuan Zhang1,2, Anning Wang3, Yanyan Zhao1,2
1First Affiliated Hospital of Dalian Medical University, Dalian, China.
Frontiers in Neurology
|September 13, 2024
Summary
Mendelian randomization identified 33 causal metabolites linked to ischemic stroke (IS) subtypes, offering potential for early detection and targeted treatments. These findings advance understanding of metabolic alterations in IS.
Area of Science:
- Neuroscience
- Genetics
- Metabolomics
Background:
- Metabolomics aids ischemic stroke (IS) research by revealing metabolic changes.
- Causality between metabolites and IS subtypes remains unclear.
- Mendelian randomization (MR) can establish causal links.
Purpose of the Study:
- To identify specific metabolites causally associated with IS subtypes.
- To investigate the causal relationship between metabolites and IS subtypes using MR.
Main Methods:
- MR analysis utilized genome-wide association study (GWAS) data.
- Blood metabolite data from 8,299 individuals and IS subtype GWAS from MEGASTROKE (446,696 cases, 406,111 controls) were used.
- Inverse-variance weighted (IVW) method was primary; MR-Egger, weighted median, and other methods were used for validation. Cochran's Q test and MR-Egger intercept assessed heterogeneity and pleiotropy.
Main Results:
- Significant causal links were found between 33 metabolites and 3 IS subtypes.
- This study identified specific metabolic contributors to different stroke types.
Conclusions:
- Identified metabolites show potential as circulating biomarkers for IS prevention and screening.
- Findings enhance understanding of IS molecular mechanisms and suggest future therapeutic targets.
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