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Association between AKT1 Gene Polymorphism rs2498794 and Smoking-Related Traits with reference to Cancer Susceptibility.

ABSTRACT: To clarify the potential role of variability within and around the AKT1 gene in smoking behaviors, we performed a single-nucleotide polymorphism (SNP) analysis of the AKT1 gene in an elderly Japanese cohort. Genotypes of the rs2498794 SNP, which is located in the fifth intron region of the AKT1 gene, were marginally but significantly associated with smoking duration in the total 999 samples of former and current smokers. Interestingly, this SNP had a marginally significant association with individual cancer history (past and current), especially in groups with a shorter smoking duration (<44 years) and fewer cigarettes per day (?20). These data suggest that the rs2498794 polymorphism of the AKT1 gene is associated with a long smoking duration and may be involved in the predisposition to cancer when the smoking duration is short or the cigarettes per day is rate low.

SUBMITTER: Nishizawa D

PROVIDER: S-EPMC4475560 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Association between AKT1 Gene Polymorphism rs2498794 and Smoking-Related Traits with reference to Cancer Susceptibility.

Nishizawa Daisuke D Kasai Shinya S Hasegawa Junko J Sato Naomi N Tanioka Fumihiko F Sugimura Haruhiko H Ikeda Kazutaka K Dobashi Yoh Y

BioMed research international 20150607

To clarify the potential role of variability within and around the AKT1 gene in smoking behaviors, we performed a single-nucleotide polymorphism (SNP) analysis of the AKT1 gene in an elderly Japanese cohort. Genotypes of the rs2498794 SNP, which is located in the fifth intron region of the AKT1 gene, were marginally but significantly associated with smoking duration in the total 999 samples of former and current smokers. Interestingly, this SNP had a marginally significant association with indiv ...[more]

PMID: 26137473

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Project description:Estrogen has played an important role in the development of breast cancer. ER-? PvuII gene polymorphism is in close association with the occurrence risk of breast cancer, but no consensus has been achieved currently.PubMed, Embase, China National Knowledge Infrastructure (CNKI) database, Wanfang database, and VIP database were retrieved to collect the case-control studies on association between ER? gene Pvu II polymorphism and breast cancer risk published before September 1, 2017. Newcastle-Ottawa Scale (NOS) was used to assess the quality of the literatures, Stata 14.0 software was applied for meta-analysis, and the pooled odds ratio (OR) and 95% confidence interval (95% CI) were calculated. The subgroup analysis was performed to assess the confounding factors, followed by assessment of publication bias and sensitivity analysis.A total of 26 studies were enrolled in the analysis based on inclusion criteria, which included 15,360 patients and 26,423 controls. The results demonstrated that ER? gene Pvu II polymorphism was in significant association with the decrease of breast cancer risk in 3 genetic models (C vs T, OR?=?0.962, 95% CI?=?0.933-0.992, P?=?.012; CC vs TT, OR?=?0.911, 95% CI?=?0.856-0.969, P?=?.003; CC vs TT/CT, OR?=?0.923, 95% CI?=?0.874-0.975, P?=?.004). Subgroup analysis was conducted on the basis of ethnicity and source of controls, whose results illustrated that ER? gene Pvu II polymorphism was in significant association with the decrease of breast cancer risk in Asians rather than in Caucasians (CC vs TT, OR?=?0.862, 95% CI?=?0.750-0.922, P?=?.038; CC vs TT/CT, OR?=?0.851, 95% CI?=?0.755-0.959, P?=?.008). In population-based subgroup rather than in hospital-based subgroup, ER? gene Pvu II polymorphism was in significant association with the decrease of breast cancer risk in the allele model, homozygous model, dominant model, and recessive model (C vs T, OR?=?0.943, 95% CI?=?0.911-0.977, P?=?.001; CC vs TT, OR?=?0.878, 95% CI?=?0.817-0.944, P?=?.000; CC/CT vs TT, OR?=?0.936, 95% CI?=?0.881-0.994, P?=?.031; CC vs TT/CT, OR?=?0.902, 95% CI?=?0.847-0.960, P?=?.001).ER? gene Pvu II polymorphism exerts an important function in the progression of breast cancer.

Dataset Information

Association between AKT1 Gene Polymorphism rs2498794 and Smoking-Related Traits with reference to Cancer Susceptibility.

Publications

Association between AKT1 Gene Polymorphism rs2498794 and Smoking-Related Traits with reference to Cancer Susceptibility.

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