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Functional polymorphism in miR-208 is associated with increased risk for ischemic stroke
Chao Liu1, Yan-Ping Luo2, Jie Chen1
1Department of Laboratory Medicine, the Second Affiliated Hospital of Guilin Medical University, Guilin, 541199, China.
BMC Medical Genomics
|July 31, 2023
Summary
Genetic variations in the miR-208 gene, specifically the rs8022522 polymorphism, are linked to an increased risk of ischemic stroke (IS). This finding highlights a potential genetic marker for IS susceptibility in the Chinese population.
Area of Science:
- Genetics
- Cardiovascular Diseases
- Neurology
Background:
- MicroRNAs (miRNAs), including miR-208, are implicated in cardiovascular diseases.
- The association between miR-208 genetic variations and ischemic stroke (IS) susceptibility has not been previously investigated.
- This study addresses the gap in understanding miR-208's role in IS risk.
Purpose of the Study:
- To investigate the association between specific miR-208 gene polymorphisms (rs178642, rs8022522, and rs12894524) and the risk of ischemic stroke (IS).
- To identify potential genetic markers for IS susceptibility related to miR-208.
Main Methods:
- A case-control study involving 205 IS patients and 211 healthy controls.
- Genotyping of three miR-208 polymorphisms (rs178642, rs8022522, rs12894524) using the SNPscan method.
- Statistical analysis to evaluate the correlation between genotypes, alleles, and IS risk.
Main Results:
- A significant correlation was found between the rs8022522 polymorphism and the risk of IS.
- Specific genotype and allele contrasts (e.g., GA vs. GG, AA vs. GG, dominant model, G vs. A allele) showed statistically significant associations with elevated IS risk (P < 0.05).
- Adjusted odds ratios indicated increased risk for certain genotypes and alleles of rs8022522.
Conclusions:
- The rs8022522 polymorphism in the miR-208 gene is significantly associated with an elevated risk of ischemic stroke.
- This genetic variation may serve as a predictive marker for IS risk in the Chinese population.
- Further research is warranted to elucidate the functional mechanisms underlying this association.
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