暴露于重金属和癌症风险:来自孟德尔随机化研究的发现
Shuang Qin1, Longhui Xie1, Jianwei Lan2
1Department of Hepatobiliary Pancreatic Spleen Surgery,The Central Hospital of Yongzhou, Hunan, China; Department of Hepatobiliary Pancreatic Spleen Surgery, Yongzhou Hospital Affiliated to University of South China, Hunan, China.
Toxicology letters
|February 4, 2026
概括
接触重金属,包括,和铜,因果关系增加了几种癌症的风险. 相反,接触可能会防止急性淋巴细胞白血病,强调需要公共卫生干预措施.
科学领域:
- 环境健康 环境健康
- 遗传流行病学遗传流行病学
- 癌症研究 癌症研究
背景情况:
- 流行病学研究将重金属暴露与癌症风险增加联系起来.
- 由于观察性研究中的混和反向因果关系,确定因果关系是具有挑战性的.
- 门德尔随机化 (MR) 提供了一种强大的方法,可以使用遗传变异推断因果关系.
研究的目的:
- 用两样MR方法研究血清重金属度对多种癌症类型的因果关系.
- 利用遗传变异作为工具变量来进行强大的因果推断.
- 为了确定与增加或减少癌症风险相关的特定重金属.
主要方法:
- 利用全基因组关联研究 (GWAS) 数据用于重金属暴露的遗传仪器.
- 采用逆方差加权 (IVW) 方法进行初级因果估计.
- 通过加权中位数,MR-Egger回归和MR-PRESSO,与多次测试的邦费罗尼校正来评估稳健性和解决性.
主要成果:
- 基因预测的血清显示出宫癌的风险增加 (OR=1.473).
- 血清表明对急性淋巴细胞白血病 (OR=0.399) 有保护作用.
- 血清与增加胆道癌症风险相关 (OR=1.315),血清铜与更高的整体癌症发病率相关 (OR=1.052).
结论:
- 这项研究提供了强有力的证据,证明重金属暴露与癌症发展之间存在因果关系.
- 这些发现强调了对潜在的生物机制进行研究的需要.
- 强调公共卫生战略的紧迫性,以减轻重金属相关的癌症风险.
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