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自然暴露与自杀率之间的关联:葡萄牙的生态和生物监测研究
Carolina Gonçalves1, Rui Azevedo2, Cristina Couto2,3,4
1Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal.
Nutrients
|April 12, 2025
概括
这项研究发现,在不同地区的尿路水平中,没有明显的差异,自杀率各不相同. 饮用水和环境水中的低似乎不能防止自杀风险.
科学领域:
- 环境健康 环境健康
- 毒理学 毒理学 毒理学
- 流行病学 流行病学
背景情况:
- 生态研究表明,饮用水中 (Li) 的含量较高与自杀率较低相关,但这种联系缺乏一致性.
- 之前的研究局限性包括假设饮用水Li直接反映总Li摄入量.
- 生物监测被提出为评估总摄入量的更可靠方法.
研究的目的:
- 为了比较尿液中的Li水平,作为总Li摄入量的代理,在三个葡萄牙地区具有不同的自杀相对风险 (RRs).
- 研究尿液中的和饮用水和环境水源中的度之间的关系.
- 评估天然暴露对抗自杀风险的潜在保护作用.
主要方法:
- 一项生物监测研究涉及来自波尔图大都市区 (低RR),中部地区 (中等RR) 和特拉斯-奥斯-蒙特斯 (高RR) 的311名参与者.
- 从每个参与者那里收集第一天早上的尿样和饮用水/环境水样.
- 使用诱导联等离子体质谱法 (ICP-MS) 量化的度.
主要成果:
- 在这三个地区之间没有观察到尿液中位数度的统计学上显著差异.
- 尿液中的与饮用水中的有微弱的正相关性 (ρ = 0.174,p = 0.002).
- 尿液中的和环境水中的之间没有发现显著的相关性 (ρ = -0.036,p = 0.694).
结论:
- 这些发现不支持饮用或环境水中的天然暴露对观察到的低水平的自杀风险的保护作用.
- 饮用水与总摄入量直接相关的假设可能是有缺陷的.
- 需要进一步进行全面的生物监测研究,以阐明天然暴露对自杀率的影响.
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