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Title: Lack of association between the 389C>T polymorphism (rs769217) in the catalase (CAT) gene and the risk of vitiligo: an update by meta-analysis.
Author: He J, Li X, Li Y, Ren B, Sun J, Zhang W, Li W.
Journal: Australas J Dermatol; 2015 Aug; 56(3):180-5. PubMed ID: 25139332.
Abstract:
BACKGROUND/OBJECTIVES: The catalase (CAT) T/C at codon 389 in the exon 9 polymorphism has been implicated in susceptibility to vitiligo but a large number of studies have reported inconclusive results. The purpose of this study is to evaluate the association between the catalase gene polymorphism (389C>T) and the risk of vitiligo. METHODS: A meta-analysis was carried out to analyse the association between 389C>T and vitiligo risk. RESULTS: Eight case-control studies with 2923 cases and 4237 controls were included in the meta-analysis. The results indicated that there was no association between this polymorphism and vitiligo (TT + CT versus CC: OR = 1.08, 95% CI = 0.98-1.20, P = 0.11, T versus C: OR = 1.07, 95% CI = 0.99-1.16, P = 0.092). In a subgroup analysis by ethnicity, no significant association between the CAT gene 389C>T polymorphism and vitiligo susceptibility was found in Caucasians (TT + CT versus CC: OR = 1.15, 95% CI = 0.98-1.35, P = 0.08; T versus C: OR = 1.07, 95% CI = 0.97-1.19, P = 0.173) and Asians (TT + CT versus CC: OR = 1.12, 95% CI =0.93-1.34, P = 0.23; T versus C: OR = 1.07, 95% CI = 0.94-1.21, P = 0.321). CONCLUSIONS: Our results suggest that 389C>T may not contribute to vitiligo susceptibility. However, larger primary studies with the consideration of gene-environment and gene-gene interactions are still required to further evaluate the interaction of CAT gene polymorphism with vitiligo susceptibility.

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