在脑脊液和血液中检测微塑料和纳米塑料:对大脑疾病的影响
Tingting Wang1, Zhiheng Yi2, Yuhan Tan2
1Department of Neurology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, China.
Ecotoxicology and environmental safety
|January 28, 2026
概括
微塑料和纳米塑料 (MNPs) 存在于人脑脊髓液和血液中,在血液中度较高. 这项研究表明,MNP可能与大脑中的代谢变化有关,这需要进一步研究.
科学领域:
- 环境科学 环境科学
- 神经科学是一个神经科学.
- 毒理学 毒理学 毒理学
背景情况:
- 全球塑料生产导致广泛的微型和纳米塑料 (MNP) 污染.
- 在人体组织中检测到MNP,但它们的存在和对中枢神经系统的影响尚不清楚.
研究的目的:
- 为了研究MNP度在配对的脑脊液 (CSF) 和来自神经疾病患者的血液样本.
- 评估MNP存在与大脑代谢变化之间的潜在关联.
主要方法:
- 来自神经免疫疾病,神经传染病和对照患者的对联的CSF和血液样本 (每个n=20) 的分析.
- 使用热解气色谱法/质谱法 (Py-GC/MS) 对11种MNP类型的量化.
- 不针对性地对CSF进行代谢分析,以确定相关的代谢障碍.
主要成果:
- 在CSF和血液中检测到五种MNP聚合物类型 (PVC,PA66,PE,PP,PS).
- 在血液中发现MNP度显著更高 (121.43-151.52微克/毫升),与CSF (7.59-16.07微克/毫升) 相比.
- 在神经免疫和神经传染组中观察到CSF和血液MNP水平之间的强烈相关性.
- 代谢分析显示,高MNP水平的个体有23条途径受损,包括FcγR介导的细胞和甘氨酸脂代谢.
结论:
- 这项试点研究表明MNP与大脑中的代谢变化之间存在潜在的关联.
- 这些发现强调了需要进一步研究MNP在神经疾病中的作用.
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