缓解催性缺氧诱导的脏炎症变化通过奎尔素预防治疗
Vaishnavi Rathi1, Sarada S K Sagi1
1Defence Institute of Physiology and Allied Sciences, DRDO, Delhi, India.
Journal of traditional and complementary medicine
|September 22, 2025
概括
奎尔素通过降低氧化应激和NF-κB激活,有效地预防催性缺氧诱导的炎. 这种天然化合物在保护脏组织和改善血液参数方面优于德克萨米他.
科学领域:
- 脏生理学和病理学
- 分子生物学和免疫学 分子生物学和免疫学
- 药理学和毒理学 药理学和毒理学
背景情况:
- 急性低氧催发炎,其特征是氧化应激增加和核因子-kappa B (NF-κB) 的激活.
- 了解底层的分子机制 低压性缺氧诱导的损伤对于开发有效的预防策略至关重要.
- 在低氧条件下,NF-κB信号传递在调解脏炎症反应中起着关键作用.
研究的目的:
- 调查NF-κB及其下游基因在大鼠的低氧性炎诱导的炎中的作用.
- 为了评估与德克萨米他相比,奎尔塞丁在预防低血压缺氧诱导的炎方面的疗效.
- 阐明奎尔素对急性低性缺氧引起的损伤的保护机制.
主要方法:
- 在暴露于急性低性缺氧之前,Sprague Dawley大鼠被预先条件化使用奎尔丁.
- 在脏组织中评估了氧化应激标志物 (ROS,MDA) 和抗氧化酶水平 (GPx,SOD).
- 利用西方抹黑和电泳运动转移试验 (EMSA) 来分析NF-κB的表达和激活.
- 测量了促炎和抗炎细胞因子水平,以及细胞粘附分子.
- 进行了组织病理学和传输电子显微镜 (TEM) 分析.
- 评估的血液学参数 (白血球,红血球,血小板计数).
主要成果:
- 低压性缺氧显著增加了ROS和MDA水平,同时降低了大鼠脏中的GPx和SOD.
- 奎尔提前治疗显著降低了ROS和MDA,增强了GPx和SOD,并降低了NF-κB激活.
- 奎尔素有效调节了促炎和抗炎细胞因子,并降低了细胞粘附分子的表达.
- 奎尔塞丁在减轻脏炎症和改善血液学参数方面表现出比德克萨米他更高的疗效.
- 组织病理学和TEM发现证实了奎尔素对脏结构的保护作用.
结论:
- 奎尔素通过抑制氧化应激和NF-κB信号传递,显著减轻急性低氧性缺氧诱导的炎.
- 与德克萨米他相比,奎尔赛丁表现出优越的保护作用,提供了一个有前途的天然治疗剂.
- 这些发现凸显了奎尔素作为一种植物化学类黄类物质,用于预防低氧压力下脏炎症的潜力.
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