OBJECTIVE: A meta-analysis was performed to better clarify the association between hemochromatosis (HFE) gene and the risk of Parkinson's disease (PD). METHODS: Pooled odds ratio (OR) with 95% confidence interval (CI) was calculated from fixed- and random-effect models. Heterogeneity among studies was evaluated using the I(2) and Q test. Egger's test was used to estimate the publication bias. RESULTS: We identified 8 articles with 9 independent studies for this meta-analysis. The present meta-analysis showed no significant association of Y allele with the risk of PD in dominant (OR = 0.87, 95% CI = 0.70-1.09), recessive (OR = 1.58, 95% CI = 0.61-4.10), and codominant (OR = 0.88, 95% CI = 0.72-1.09) models for C282Y. There were also no significant associations of D allele with the risk of PD in dominant (OR = 1.04, 95% CI = 0.87-1.24), recessive (OR = 1.23, 95% CI = 0.70-2.18), and codominant (OR = 1.04, 95% CI = 0.89-1.22) genetic models for H63D. No publication bias was detected. CONCLUSION: The meta-analysis indicated that C282Y and H63D polymorphisms in the HFE gene might not be associated with PD.
OBJECTIVE: A meta-analysis was performed to better clarify the association between hemochromatosis (HFE) gene and the risk of Parkinson's disease (PD). METHODS: Pooled odds ratio (OR) with 95% confidence interval (CI) was calculated from fixed- and random-effect models. Heterogeneity among studies was evaluated using the I(2) and Q test. Egger's test was used to estimate the publication bias. RESULTS: We identified 8 articles with 9 independent studies for this meta-analysis. The present meta-analysis showed no significant association of Y allele with the risk of PD in dominant (OR = 0.87, 95% CI = 0.70-1.09), recessive (OR = 1.58, 95% CI = 0.61-4.10), and codominant (OR = 0.88, 95% CI = 0.72-1.09) models for C282Y. There were also no significant associations of D allele with the risk of PD in dominant (OR = 1.04, 95% CI = 0.87-1.24), recessive (OR = 1.23, 95% CI = 0.70-2.18), and codominant (OR = 1.04, 95% CI = 0.89-1.22) genetic models for H63D. No publication bias was detected. CONCLUSION: The meta-analysis indicated that C282Y and H63D polymorphisms in the HFE gene might not be associated with PD.
Authors: Dominic J Hare; Bárbara Rita Cardoso; Erika P Raven; Kay L Double; David I Finkelstein; Ewa A Szymlek-Gay; Beverley-Ann Biggs Journal: NPJ Parkinsons Dis Date: 2017-01-05
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Authors: Ahmad R Arshad; Siti A Sulaiman; Amalia A Saperi; Rahman Jamal; Norlinah Mohamed Ibrahim; Nor Azian Abdul Murad Journal: Front Mol Neurosci Date: 2017-10-31 Impact factor: 5.639