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Journal Article
Meta-Analysis
Review
The association between brain-derived neurotrophic factor gene polymorphism and migraine: a meta-analysis.
Journal of Headache and Pain 2017 December
BACKGROUND: Migraine is a recurrent headache disease related to genetic variants. The brain-derived neurotrophic factor (BDNF) gene rs6265 (Val66Met) and rs2049046 polymorphism has been found to be associated with migraine. However, their roles in this disorder are not well established. Then we conduct this meta-analysis to address this issue.
METHODS: PubMed, Web of Science and Cochrane databases were systematically searched to identify all relevant studies. Odds ratio (OR) with corresponding 95% confidence interval (CI) was used to estimate the strength of association between BDNF gene rs6265 and rs2049046 polymorphism and migraine.
RESULTS: Four studies with 1598 cases and 1585 controls, fulfilling the inclusion criteria were included in our meta-analysis. Overall data showed significant association between rs6265 polymorphism and migraine in allele model (OR = 0.86, 95%CI: 0.76-0.99, p = 0.03), recessive model (OR = 0.84, 95%CI: 0.72-0.98, p = 0.03) and additive model (GG vs GA: OR = 0.85, 95%CI: 0.72-1.00, p = 0.04), respectively. We also found significant association between rs2049046(A/T) polymorphism and migraine in allele model (OR = 0.88, 95%CI: 0.79-0.98, p = 0.02), recessive model (OR = 0.80, 95%CI: 0.67-0.96, p = 0.02) and additive model (AA vs TT: OR = 0.72, 95%CI: 0.57-0.92, p = 0.008; AA vs AT: OR = 0.81, 95%CI: 0.67-0.99, p = 0.03), respectively.
CONCLUSION: Our meta-analysis suggested that BDNF rs6265 and rs2049046 polymorphism were associated with common migraine in Caucasian population. Further studies are awaited to update this finding in Asian population and other types of migraine.
METHODS: PubMed, Web of Science and Cochrane databases were systematically searched to identify all relevant studies. Odds ratio (OR) with corresponding 95% confidence interval (CI) was used to estimate the strength of association between BDNF gene rs6265 and rs2049046 polymorphism and migraine.
RESULTS: Four studies with 1598 cases and 1585 controls, fulfilling the inclusion criteria were included in our meta-analysis. Overall data showed significant association between rs6265 polymorphism and migraine in allele model (OR = 0.86, 95%CI: 0.76-0.99, p = 0.03), recessive model (OR = 0.84, 95%CI: 0.72-0.98, p = 0.03) and additive model (GG vs GA: OR = 0.85, 95%CI: 0.72-1.00, p = 0.04), respectively. We also found significant association between rs2049046(A/T) polymorphism and migraine in allele model (OR = 0.88, 95%CI: 0.79-0.98, p = 0.02), recessive model (OR = 0.80, 95%CI: 0.67-0.96, p = 0.02) and additive model (AA vs TT: OR = 0.72, 95%CI: 0.57-0.92, p = 0.008; AA vs AT: OR = 0.81, 95%CI: 0.67-0.99, p = 0.03), respectively.
CONCLUSION: Our meta-analysis suggested that BDNF rs6265 and rs2049046 polymorphism were associated with common migraine in Caucasian population. Further studies are awaited to update this finding in Asian population and other types of migraine.
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