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Zhonghua Liu Xing Bing Xue Za Zhi ; 29(9): 930-3, 2008 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-19173862

RESUMO

OBJECTIVE: To explore the relationships between the polymorphisms of xeroderma pigmentosum A (XPA) and the susceptibility of esophageal cancer (EC), as well as its interaction with environmental factors-gene in Changzhi area, Shanxi province. METHODS: A case-control study was conducted, including 196 cases of EC and 201 controls. XPA 23G polymorphisms were determined with polymerase chain-restriction on fragment length polymorphism (PCR-RFLP). RESULTS: The risk of EC was significantly degraded in the individuals who had been carrying the XPA heterozygote (A/G) and mutation genotype (G/G), compared to those with wild genotype (chi2 = 16.21, P < 0.01) and the ORs were 0.58 (0.37-0.91) and 0.32 (0.18-0.56), respectively. There was negative interaction between XPA 23G mutation genotype and the consumption of pickled food (S = 0.04, API= -0.77). CONCLUSION: Genetic polymorphism in the XPA 23G might be associated with esophageal cancer in Changzhi area, and there was a negative action between XPA predisposing genotype and the consumption of pickled food.


Assuntos
Neoplasias Esofágicas/genética , Polimorfismo Genético , Proteína de Xeroderma Pigmentoso Grupo A/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Feminino , Predisposição Genética para Doença , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade
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