Association of Glycoprotein IIIa PlA1/A2 Polymorphism with Risk of Stroke: Updated Meta-Analysis

Area of Science:

• Genetics
• Cardiovascular Medicine
• Neurology

Background:

• Cardiovascular diseases, including ischemic heart disease and stroke, are leading global causes of mortality.
• Pharmacogenomics offers potential to personalize treatments for cardiovascular diseases, but its application remains limited.
• Genetic variants in GP IIb/IIIa may influence the timing and treatment response of atherothrombotic events.

Purpose of the Study:

• To investigate the association between the PlA2 rs5918(C) genetic variant and the risk of cerebral stroke.
• To differentiate the risk associated with this variant in ischemic versus hemorrhagic stroke subtypes.

Main Methods:

• A systematic search and meta-analysis were conducted, pooling data from 31 studies.
• The analysis included 5985 stroke patients and 7886 controls.
• Subgroup analyses were performed for ischemic and hemorrhagic stroke subtypes.

Main Results:

• A significant association was found between the PlA2 rs5918(C) allele and an increased risk of ischemic stroke (OR=1.16-1.20, p=0.001-0.012).
• No significant association was observed between the PlA2 rs5918(C) polymorphism and hemorrhagic stroke (OR=0.86-0.90, p=0.386-0.398).
• The analysis for hemorrhagic stroke had low statistical power (<30%), limiting the ability to detect a true effect.

Conclusions:

• The PlA2 rs5918(C) allele is associated with an elevated risk of ischemic stroke.
• The lack of association with hemorrhagic stroke may be attributed to insufficient study numbers and statistical power.
• Further research with larger cohorts is warranted to fully elucidate the role of the PlA2 variant in different stroke types.