MtDNA T4216C variation in multiple sclerosis: a systematic review and meta-analysis

Area of Science:

• Genetics
• Neurology
• Immunology

Background:

• The association between mitochondrial DNA (mtDNA) T4216C variation and Multiple Sclerosis (MS) susceptibility remains controversial.
• Previous studies investigating this link have yielded conflicting results.
• A comprehensive synthesis of existing evidence is needed to clarify the role of mtDNA T4216C in MS.

Purpose of the Study:

• To systematically review and meta-analyze published studies on the association between mtDNA T4216C variation and MS susceptibility.
• To provide a consolidated conclusion regarding the evidence supporting or refuting this association.

Main Methods:

• A systematic literature search was conducted in English to identify relevant publications.
• Data from selected studies were extracted for meta-analysis.
• A fixed-effect model was employed to calculate the pooled odds ratio (OR), 95% confidence interval (95% CI), and P value.

Main Results:

• The meta-analysis revealed a statistically significant association between mtDNA T4216C variation and MS.
• The pooled OR was 1.38 (95% CI = 1.13-1.67, P = 0.001), indicating an increased risk.
• This finding suggests that the mtDNA T4216C variation contributes to MS susceptibility.

Conclusions:

• The systematic review and meta-analysis provide strong evidence for a significant association between mtDNA T4216C variation and susceptibility to Multiple Sclerosis.
• mtDNA T4216C variation should be considered a contributory genetic factor in the pathogenesis of MS.
• Further research may explore the functional mechanisms underlying this association.