向肠道微生物群调节提高了MPTP帕金森病模型中的利沃多巴生物可用性和运动恢复
Penghui Ai1, Shaoqing Xu2, Yuan Yuan1
1Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
International journal of molecular sciences
|June 13, 2025
概括
肠道微生物群通过改变药物新陈代谢,显著影响莱沃多巴 (L-dopa) 在帕金森病 (PD) 中的疗效. 调节肠道细菌可以优化L-dopa治疗并改善患者的治疗结果.
科学领域:
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
- 神经科学是一个神经科学.
背景情况:
- 肠道微生物群影响药物的疗效,但L-dopa变化的机制尚不清楚.
- 杆菌酸脱碳酶 (tyrDCs) 代谢L-多巴,降低其生物可用性.
- 在帕金森病 (PD) 治疗中,微生物群驱动的药理动力学变异性需要研究.
研究的目的:
- 研究肠道微生物群在L-多巴代谢和PD治疗反应中的作用.
- 为了确定微生物组成是否解释L-dopa疗效的个体间差异.
- 探索针对微生物群的战略,以优化PD药物治疗.
主要方法:
- 在MPTP诱导的PD小鼠模型中使用了抗生素诱导的微生物群枯竭和便微生物群移植 (FMT).
- 基于L-多巴的挑战,分层 PD 患者成响应者和不响应者.
- 在人体便样本上进行了体外生物转化试验和FMT实验.
主要成果:
- 在PD小鼠中,微生物群枯竭增加了L-多巴的生物可用性,条状多巴胺水平和运动功能.
- 实验室试验表明,在中度PD患者中,L-dopa转化为多巴胺的反应更高.
- 与适度响应的微生物群相比,在小鼠中,具有良好响应的微生物群的FMT增强了L-dopa的有效性.
结论:
- 肠道微生物群直接调节L-多巴代谢,有助于PD的治疗异质性.
- 微生物组成是L-dopa临床有效性的关键决定因素.
- 包括FMT在内的向微生物调制为个性化PD治疗提供了一个有希望的策略.
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