The polymorphism of catalase T/C codon 389 in exon 9 and vitiligo susceptibility: a meta-analysis.
BACKGROUND
The exact aetiology of vitiligo has not yet been established. Oxidative stress is involved in the pathophysiology of vitiligo. It has been described that some polymorphisms in the catalase (CAT) gene may affect the risk of vitiligo. However, the results were inconsistent.


OBJECTIVE
We performed a meta-analysis of the published studies to derive a more precise estimate of the association between CAT T/C at codon 389 in exon 9 polymorphisms and vitiligo risk.


METHODS
The PubMed, Medline, Cochrane Library, China National Knowledge Infrastructure (CNKI) databases were searched to identify relevant published studies.


RESULTS
Four case-control studies (cases, 645; controls, 689) that investigated the association between C/T polymorphisms of CAT exon 9 and the risk of vitiligo were retrieved and analysed. Our findings suggested a significant association between the CAT T/C exon 9 polymorphism and vitiligo risk (CT + TT vs. CC pooled odds ratio, 1.43; 95% confidence interval, 1.14-1.80; P = 0 .002).


CONCLUSIONS
We found a significant correlation between the CAT T/C exon 9 polymorphism and the risk of vitiligo.
Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Shaanxi Province, China.
Y J
YJ
Lv
W J
WJ
Liao
Q
Q
Luan
H
H
Wang
L
L
Wang
Q
Q
Li
D000483:Alleles; D002374:Catalase / Q000235:genetics*; D005091:Exons; D005819:Genetic Markers; D020022:Genetic Predisposition to Disease; D006801:Humans; D020641:Polymorphism, Single Nucleotide; D014820:Vitiligo / Q000201:enzymology / Q000235:genetics*
D005819:Genetic Markers; D002374:Catalase