通过眼睛:在草地狭窄第一民族,加拿大产前暴露的视网膜变化,加拿大
Véronique Small1,2, Aline Philibert3, Annie Chatillon1
1School of Optometry, Université de Montréal, 3744 Jean-Brillant, Montreal, QC H3T 1P1, Canada.
International journal of environmental research and public health
|January 28, 2026
概括
在Grassy Narrows第一民族的产前甲基 (MeHg) 暴露与视网膜厚度的减少有关. 光学连贯断层扫描 (OCT) 显示了对受影响个体眼睛的长期神经发育影响.
科学领域:
- 环境健康 环境健康
- 神经科学是一个神经科学.
- 眼科医生 眼科 眼科
背景情况:
- 自20世纪60年代以来,格拉西·纳罗斯第一民族经历了工业排放的甲基 (MeHg) 污染.
- 产前暴露MeHg可以对胎儿神经发育产生负面影响,视网膜特别容易受到影响.
- 尼宾研究调查了该社区的健康影响,包括视觉评估.
研究的目的:
- 为了检查产前甲基 (MeHg) 暴露与Grassy Narrows First Nation个人视网膜结构之间的关联.
- 评估光学连贯断层扫描 (OCT) 在评估与MeHg相关的视网膜变化的有用性.
主要方法:
- 分析了59名参与者 (1971-1992) 的 (Hg) 带血水平.
- 使用光连贯断层扫描 (OCT) 进行视网膜评估,以测量视网膜神经纤维层 (RNFL) 和质细胞内状层 (GC-IPL) 厚度.
- 使用混合效应模型进行统计分析,以确定带血Hg和视网膜层厚度之间的关联.
主要成果:
- 较高的带血Hg度显著与所有黄斑部门的GC-IPL厚度降低有关.
- 在带血Hg和RNFL厚度之间发现了较少明显的关联.
- 带血Hg≥5.8μg/L的个体显示双边异常视网膜稀释的可能性更高 (OR = 3.51).
结论:
- 产前甲基暴露可能会对Grassy Narrows第一民族人口的视网膜厚度产生持久的影响.
- 光学连贯断层扫描 (OCT) 是检测和监测MeHg诱导的神经发育对视网膜的影响的一个有价值的工具.
- 研究结果强调了解决环境污染及其长期健康后果的重要性.
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