血中微塑料的增加及其与帕金森病的潜在关联
Zongtang Xu1, Xingting Huang2, Ziting Zhu3
1Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China; Department of Neurology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
Journal of hazardous materials
|November 11, 2025
概括
在帕金森病 (PD) 患者的血液中,微塑料污染的比例更高. 接触PVC和PP等特定的微塑料可能会增加神经毒性和PD风险.
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:
- 人类血液中微塑料 (MP) 的存在尚未得到充分研究.
- 需要进一步研究MP暴露与帕金森病 (PD) 之间的潜在联系.
研究的目的:
- 量化和描述PD患者和健康对照者的血液中的MPs.
- 探索MP暴露和PD之间的关联.
- 在体外研究特定MPs的神经毒性作用.
主要方法:
- 从21名PD患者和12名控制组采集的血液样本,使用抗污染方案.
- 通过热解气体染色学-质谱学 (Py-GC/MS),激光直接红外成像 (LDIR) 和扫描电子显微镜 (SEM) 进行MP分析.
- 在体外对暴露于PVC和PPMP的多巴胺基神经元进行了体外测定.
主要成果:
- 在血液样本中检测到五种聚合物类型 (PE,PS,PVC,PP,PA66).
- 与对照组 (13.56 ± 5.92 μg/g) 相比,PD患者的MP总负担显著增加 (21.36 ± 8.42 μg/g).
- 在PD患者中,PVC,PP和PA66显示出最显著的增加;PVC和PP的MP诱导了多巴胺基神经元亡和酸化α-synuclein (p-α-syn) 的增加.
结论:
- 患有PD的患者表现出血中微塑料水平升高.
- 初步证据表明,暴露于微塑料 (特别是PVC和PP) 与与PD相关的神经毒性之间存在联系.
- 需要进一步的研究来阐明微塑料在PD病变发生过程中的作用.
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