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Hypoxia inducible factor‐1α gene polymorphism G1790A and its interaction with tobacco and alcohol consumptions increase susceptibility to hepatocellular carcinoma
Author(s) -
Hsiao PeiChing,
Chen MuKuan,
Su ShihChi,
Ueng KwoChang,
Chen YiChen,
Hsieh YiHsien,
Liu YuFan,
Tsai HsiuTing,
Yang ShunFa
Publication year - 2010
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.21539
Subject(s) - hepatocellular carcinoma , genotype , medicine , heterozygote advantage , confounding , carcinoma , genetic predisposition , restriction fragment length polymorphism , gene , gastroenterology , oncology , biology , genetics , disease
Background and Objectives The aim of this study was to examine the potential associations of two hypoxia inducible factor‐1α (HIF‐1α) gene polymorphisms, C1772T and G1790A, with the susceptibility and clinicopathological status of hepatocellular carcinoma. Methods A total of 449 subjects, including 347 healthy controls and 102 patients with hepatocellular carcinoma, were recruited in this study and subjected to polymerase chain reaction–restriction fragment length polymorphism (PCR‐RFLP) analyses to estimate the impact of these two polymorphic variants on hepatocellular carcinoma. Results G1790A heterozygotes showed a higher risk for hepatocellular carcinoma, compared with GG genotypes after adjusting for other confounders (AOR = 3.97; 95%CI = 1.70–9.22), indicating a significant association between hepatocellular carcinoma susceptibility and G1790A polymorphism. Moreover, results also revealed the presence of synergistic effect between gene polymorphism of HIF‐1α G1790A and environmental risk factors, such as tobacco and alcohol consumptions while there was no significant association between HIF‐1α gene polymorphism and clinicopathological parameters of hepatocellular carcinoma. Conclusions Genetic polymorphism at G1790A of HIF‐1α is an important factor for determining the susceptibility to hepatocellular carcinoma. The interaction effects of G1790A heterozygotes to tobacco and to alcohol consumption significantly increase the risk to develop hepatocellular carcinoma. J. Surg. Oncol. 2010;102:163–169. © 2010 Wiley‐Liss, Inc.