聚格拉青叶草根提取物通过抑制HMGB1触发神经炎症来减轻缺血性中风
Pingping Shen1, Libang Zhang2, Xuewa Jiang1
1Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China.
Fitoterapia
|October 30, 2024
概括
波利加拉 (Polygala tenuifolia) 草根提取物通过减少脑损伤和神经缺陷,在治疗脑缺血方面表现有前途. 它抑制了像HMGB1这样的损伤相关分子模式 (DAMPs) 的释放,这表明神经保护性抗炎机制.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 传统中国医药 传统中国医药
背景情况:
- 威尔德的多状状. 是一种传统的中医药,用于治疗中枢神经系统疾病.
- 大脑缺血涉及复杂的病理过程,包括炎症和损伤相关分子模式 (DAMPs).
研究的目的:
- 为了研究Polygala tenuifolia根提取物对脑缺血的神经保护作用.
- 阐明潜在的抗炎机制,特别是涉及高流动性组第1框 (HMGB1).
主要方法:
- 在小鼠的体外氧气-葡萄糖剥夺/反 (OGD/R) 和体内短暂的中脑动脉封闭 (tMCAO) 模型中.
- 评估脑梗塞,神经缺陷和HMGB1水平.
- 使用HMGB1-激活的BV2微质细胞和表面等离子体共振 (SPR) 进行直接相互作用分析的体外研究.
主要成果:
- P. tenuifolia根提取物显著减少了tMCAO大鼠的脑梗塞和神经缺陷,以剂量依赖的方式.
- 提取物抑制了缺血性大脑中的HMGB1释放,并抑制了BV2细胞中的HMGB1诱导的炎症反应 (IC50 = 49.46μg/mL).
- SPR实验证实了提取物与HMGB1.1之间的直接相互作用.
结论:
- P. tenuifolia根提取物具有显著的抗胰岛素和神经保护性质.
- 提取物的有效性部分通过抑制HMGB1驱动的无菌性炎症以及可能通过直接的HMGB1相互作用来调节.
- 化物,寡糖和化合物等植物化学物质可能有助于这些活动,支持其用于脑缺血的临床应用.
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