Inflammation-Related circRNA Polymorphism and Ischemic Stroke Prognosis

Area of Science:

• Genetics
• Neuroscience
• Molecular Biology

Background:

• Circular RNAs (circRNAs) are a novel class of noncoding RNAs.
• circRNAs play a role in the pathophysiology of ischemic stroke, particularly in regulating neuro-inflammation.
• Understanding genetic variations in circRNAs may offer insights into stroke recovery and recurrence.

Purpose of the Study:

• To investigate the association between inflammation-related circRNA polymorphisms and functional outcomes 3 months after ischemic stroke.
• To explore the role of circRNA polymorphisms in predicting the risk of stroke recurrence.
• To identify potential biomarkers for ischemic stroke recovery.

Main Methods:

• A cohort of 982 ischemic stroke patients was analyzed.
• Five specific circRNA polymorphisms were genotyped using polymerase chain reaction and ligation detection reaction.
• Multivariate logistic regression and Cox proportional hazard regression models were employed to analyze functional outcomes and recurrence risk, respectively.

Main Results:

• The circ-STAT3 (signal transducer and activator of transcription) rs2293152 GG genotype was significantly associated with poorer functional recovery 90 days after ischemic stroke (OR = 2.255, p = 0.031), independent of confounding factors.
• This association was more pronounced in female patients, older individuals, and those with a history of hypertension.
• No significant associations were found between the studied circRNA polymorphisms and the risk of ischemic stroke recurrence.

Conclusions:

• The circ-STAT3 rs2293152 polymorphism may serve as a predictive biomarker for functional outcomes after ischemic stroke.
• circ-STAT3 genetic variations are implicated in the recovery process following ischemic stroke.
• Further research is warranted to elucidate the precise mechanisms by which circ-STAT3 influences stroke recovery.