吸烟行为和皮肤癌风险的遗传变异
Jean Claude Dusingize1, Matthew H Law1,2,3, Mathias Seviiri1,2
1Departments of Population Health and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Scientific reports
|October 6, 2023
概括
这项研究使用了门德尔的随机化来研究吸烟对皮肤癌的因果关系. 研究结果表明,吸烟可能会降低基底细胞癌,皮肤状细胞癌和黑色素瘤的风险.
科学领域:
- 遗传学 是一个遗传学.
- 皮肤病学 皮肤病学
- 流行病学 流行病学
背景情况:
- 观察性研究表明,吸烟会影响皮肤癌风险,但可能存在混因素.
- 这些关联包括皮肤状细胞癌 (cSCC) 的风险增加和基底细胞癌 (BCC) 和黑色素瘤的风险降低.
- 门德尔随机化 (MR) 可以评估因果关系,独立于混因素.
研究的目的:
- 通过MR检测吸烟对BCC,cSCC和黑色素瘤风险的因果关系.
- 为了确定吸烟的遗传倾向是否与皮肤癌风险独立相关.
- 为了验证或反驳观察性研究的发现.
主要方法:
- 使用全基因组关联研究 (GWAS) 总结统计数据进行了两样MR分析.
- 逆变量加权 (IVW) 估计器用于推导各种吸烟措施的风险估计.
- 分析了吸烟开始,强度和戒烟的遗传仪器.
主要成果:
- 对开始吸烟的遗传倾向显示出所有皮肤癌类型的风险降低的趋势,但不是统计学上显著的.
- 吸烟强度与黑色素瘤风险降低显著相关 (OR 0.67,95% CI 0.51-0.89).
- 没有证据支持cSCC风险增加;结果与风险降低一致.
结论:
- 这些发现支持观察数据,该数据将吸烟与较低的黑色素瘤和BCC风险联系起来.
- 该研究没有发现证据表明cSCC风险增加;结果表明潜在的风险降低.
- MR 分析提供了关于吸烟对皮肤癌发病的独立因果关系的见解.
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