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J Intern Med:这个基因变异会增加吸烟者的死亡风险

2016-09-28 Moon 译 MedSci原创

先前的研究已表明,15号染色体上编码烟碱型乙酰胆碱受体亚基(CHRNA5-CHRNA3-CHRNB4)的聚类遗传变异,与吸烟量和吸烟相关疾病的风险之间具有强烈联系。(CHRNA5-CHRNA3-CHRNB4)包括慢性阻塞性肺疾病(COPD)、外周动脉疾病和肺癌。 rs1051730 (C/T)作为CHRNA5-CHRNA3-CHRNB3簇的多变体标签,是否与吸烟相关疾病的死亡率和发病率变化相

先前的研究已表明,15号染色体上编码烟碱型乙酰胆碱受体亚基(CHRNA5-CHRNA3-CHRNB4)的聚类遗传变异,与吸烟量和吸烟相关疾病的风险之间具有强烈联系。(CHRNA5-CHRNA3-CHRNB4)包括慢性阻塞性肺疾病(COPD)、外周动脉疾病和肺癌。

rs1051730 (C/T)作为CHRNA5-CHRNA3-CHRNB3簇的多变体标签,是否与吸烟相关疾病的死亡率和发病率变化相关呢?就此问题,我们对一个基于人群的前瞻性队列研究(马尔默饮食和癌症研究)进行了分析。

在基线时参与者被分为当前吸烟者(n = 6951)、既往吸烟者(n = 8426)和从不吸烟(n = 9417)三组。使用Cox比例风险模型评估rs1051730和首次COPD、吸烟相关癌症、其他癌症和心血管疾病之间的联系,以后在近14年的随访中,rs1051730与死于这些疾病的总死亡率风险之间的联系。

数据显示,当前吸烟者中,首次COPD、吸烟相关癌症、其他癌症和心血管疾病分别发生了480例、852例、810例和1022例。总共发生了1508例死亡率,其中死因为心血管疾病、呼吸系统疾病和癌症的分别有500例、102例和677例。

分析结果显示,随着T等位基因数目的增加,参与者的总死亡率、COPD和烟草相关癌症的发病率逐渐增加,校正吸烟量之后,这种联系仍存在。但是对于从不吸烟的人群,就没有发现这种联系。

我们的数据表明,CHRNA5-CHRNA3-CHRNB3簇的基因变异与吸烟者死亡率、COPD和烟草相关癌症的发病率的增加有关。

原始出处:


S. Halldén,et al.You have full text access to this OnlineOpen article
Gene variance in the nicotinic receptor cluster (CHRNA5-CHRNA3-CHRNB4) predicts death from cardiopulmonary disease and cancer in smokers.
J Intern Med.Volume 279, Issue 4

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    2016-10-22 ylzr123

    吸烟有害健康,为什么要等到疾病缠身才能戒烟呢?奉劝吸烟的朋友们,为了你和家人,请立即戒烟吧!

    0

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