环境空气污染与结直肠癌之间的关联:孟德尔的随机化研究
Xinshu Xu1,2, Linhan Zhang1, Yongkang An1
1Department of Anorectal, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, PR China.
概括
长期暴露于二氧化 (NO2) 空气污染与患结直肠癌 (CRC) 的风险更高有关. 这项研究使用遗传数据来探索这种关联,发现NO2显著增加了CRC风险.
科学领域:
- 环境流行病学环境流行病学
- 遗传学 是一个遗传学.
- 在瘤学瘤学.
背景情况:
- 流行病学研究表明,环境空气污染和结直肠癌 (CRC) 之间存在联系.
- 然而,这种关联的遗传基础在很大程度上仍未被探索.
- 了解遗传联系可以为有针对性的预防策略提供信息.
研究的目的:
- 调查暴露于环境空气污染物和结直肠癌 (CRC) 之间的遗传关联.
- 利用全基因组关联研究 (GWAS) 数据和孟德尔随机化 (MR) 来评估因果关系.
主要方法:
- 在英国生物库GWAS数据上使用孟德尔随机化 (MR) 分析.
- 研究了四种空气污染物 (PM2.5,PM10,NO2,NOx) 与CRC风险之间的关联.
- 包括5,657个CRC病例和372,016个空气污染暴露数据的控制.
主要成果:
- 在长期暴露于二氧化 (NO2) 和增加CRC风险之间发现了显著的关联 (OR:1.02,95%CI:1.00-1.03每10μg/m3).
- 没有观察到PM2.5,PM10或NOx暴露与CRC风险的统计学意义上的关联.
- 敏感性分析证实了有关NO2暴露的发现的可靠性.
结论:
- 长期暴露于NO2是发展结直肠癌的潜在危险因素.
- 在CRC风险评估和缓解策略中应考虑空气污染,特别是NO2.
- 对将空气污染物与CRC联系在一起的遗传机制进行进一步的研究是有必要的.
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