Association between allotypes of complement components C2, BF, C4 of HLA class III and cerebral stroke

Area of Science:

• Immunogenetics
• Neurology
• Epidemiology

Background:

• Cerebral stroke (CS) is a leading cause of disability and mortality worldwide.
• Genetic factors are implicated in CS pathogenesis, but specific associations require further investigation.
• Complement system proteins, including C2, Factor B (BF), and C4, play roles in inflammation and immune responses relevant to vascular diseases.

Purpose of the Study:

• To investigate the association between specific allotypes of complement system proteins (C2, BF, C4) and the risk of cerebral stroke (CS).
• To determine if genetic variations in these complement components are prevalent in a Chinese population experiencing CS.

Main Methods:

• Typing of C2, BF, and C4 allotypes was performed using established techniques.
• Patient cohort comprised 58 individuals diagnosed with cerebral stroke (CS).
• Control group consisted of 110 healthy individuals from the same geographical region (Guangzhou).

Main Results:

• A statistically significant association was identified between the BF*F allotype and cerebral stroke (CS).
• No significant associations were found for C2 and C4 allotypes with CS in this cohort.
• The prevalence of BF*F was notably higher in patients with CS compared to controls.

Conclusions:

• The BF*F allotype is a potential genetic marker associated with an increased risk of cerebral stroke (CS) in the Guangzhou population.
• These findings contribute to understanding the role of the complement system's genetic variations in stroke susceptibility.
• Further research is warranted to elucidate the functional mechanisms linking BF*F to CS pathogenesis.