TNFRSF11B polymorphisms predict poor outcome after large artery atherosclerosis stroke

Area of Science:

• Genetics
• Cardiovascular Medicine
• Neurology

Background:

• Osteoprotegerin plays a role in atherosclerosis progression.
• Large artery atherosclerosis (LAA) stroke is a significant cause of morbidity and mortality.
• Genetic factors influencing LAA stroke prognosis require further investigation.

Purpose of the Study:

• To investigate the association between specific polymorphisms in the TNFRSF11B gene and the prognosis of LAA stroke.
• To evaluate the impact of these genetic variations on short-term and long-term stroke outcomes.

Main Methods:

• Genotyping of three TNFRSF11B polymorphisms (rs2073617, rs2073618, rs3134069) in 1010 LAA stroke patients.
• Assessment of short-term outcome using the modified Rankin Scale at 3 months post-stroke.
• Evaluation of long-term outcome through stroke recurrence monitoring.
• In silico analysis to explore the functional impact of identified polymorphisms.

Main Results:

• The rs2073617G polymorphism was associated with an increased risk of poor LAA stroke outcome (OR=1.35).
• The rs3134069C polymorphism also showed an association with increased risk of poor LAA stroke outcome (OR=1.53).
• A combined analysis of rs2073617G and rs3134069C revealed a significantly higher risk of poor outcome in patients with 3-4 risk alleles (OR=1.90), especially in those with hypertension, without diabetes, or with a smoking history.

Conclusions:

• TNFRSF11B polymorphisms, specifically rs2073617 and rs3134069, are associated with an increased risk of short-term poor outcome in patients with LAA stroke.
• These genetic variations may influence stroke prognosis and could serve as potential biomarkers.
• Further research is warranted to elucidate the precise mechanisms by which these polymorphisms affect LAA stroke outcomes.