在认知障碍中便中增加的银,和:对微生物群与金属相互作用的试点探索
David Mateo1, Marília Cristina Oliveira Souza2, Nerea Carrión3
1Laboratory of Toxicology and Environmental Health (LSTM) - TecnATox, School of Medicine, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Avda. Josep Laporte, 43204 Reus, Catalonia, Spain.
Neurotoxicology
|January 12, 2026
概括
认知障碍 (CI) 与肠道微生物群和金属暴露有关. 这项研究在CI患者中发现银,和的含量较高,这表明金属与神经退行相互作用. 需要进一步的研究.
科学领域:
- 神经科学是一个神经科学.
- 微生物学 微生物学
- 毒理学 毒理学 毒理学
背景情况:
- 认知障碍 (CI),包括缓解记忆的轻度认知障碍 (aMCI) 和阿尔茨海默病 (AD),与肠道微生物群 (GMB) 和金属暴露有关.
- 整合GMB,金属暴露和CI的研究是有限的.
研究的目的:
- 调查金属暴露是否影响基因转基因生物组合和CI患者的临床结果之间的联系.
- 探索肠道微生物,金属和认知衰退之间的潜在相互作用.
主要方法:
- 从aMCI (n=12),AD (n=18) 和健康对照 (HC,n=30) 收集的便样本.
- 通过猎枪测序评估肠道微生物多样性,并使用ICP-MS量化25种金属.
- 进行认知,神经心理和功能评估.
主要成果:
- 在CI和HC组之间没有发现肠道微生物丰富度或多样性 (α和β) 的显著差异.
- 微生物多样性的测量与认知结果没有相关性.
- 与HC相比,aMCI和AD的参与者表现出明显更高的便度的白银 (Ag), (Li) 和 (Pt) (p < 0.001).
结论:
- 患有CI的个体便中高的Ag,Li和Pt水平表明微量金属和神经退行过程之间的潜在相互作用.
- 虽然整体微生物多样性相似,但这些发现强调需要进行更大规模的纵向研究.
- 进一步的研究对于理解肠道微生物群,金属稳态和认知衰退的复杂相互作用至关重要.
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