通过抑制缺血性中风后的氧化应激水平和炎症来改善神经功能,逐步针对性策略
Yi Li1, Jun Liao2, Liyan Xiong3
1Shanghai Engineering Research Center of Organ Repair, School of Medicine, or Materials Science and Engineering, Shanghai University, Shanghai 200444, China; Department of Pharmacy, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, China.
概括
新的纳米颗粒准大脑治疗缺血性中风,通过减少炎症和保护神经元. 这种药物输送策略在治疗中风和预防进一步损害方面表现有前途.
科学领域:
- 生物医学工程 生物医学工程
- 神经科学是一个神经科学.
- 纳米技术纳米技术
背景情况:
- 缺血-再输液损伤导致神经元损伤由于反应性氧物种 (ROS) 和炎症,导致血脑屏障 (BBB) 功能障碍.
- 目前对缺血性中风的治疗方法有限,这凸显了对新型治疗策略的需求.
- 在整个BBB中有效地提供药物,以准受损的大脑区域仍然是一个重大挑战.
研究的目的:
- 开发一种多功能纳米粒子 (ORD@SHp@ANG),用于针对性地在缺血性中风中提供药物.
- 评估这些纳米颗粒穿越血脑屏障并准缺血部位的能力.
- 评估纳米颗粒在减少氧化应激,炎症和神经元损伤方面的治疗效果.
主要方法:
- 多功能纳米粒子 (ORD@SHp@ANG) 的制备,其中包括中风定位和BBB向和ROS响应组件.
- 在体外评估ROS清除活性和保护神经元细胞 (SH-SY5Y) 免受氧化损伤.
- 在大鼠缺血-再输血模型中的体内评估,以评估BBB交叉,抗炎作用,减少脑梗塞和神经元亡.
主要成果:
- ORD@SHp@ANG纳米粒子成功穿过BBB并选择性地准缺血性大脑区域.
- 纳米颗粒在体外和受保护的神经元细胞中证明了有效的ROS清理.
- 在体内研究显示,小鼠中风模型中脑梗塞减少,炎症抑制,BBB完整性保持,神经元亡减少.
结论:
- ORD@SHp@ANG纳米粒子代表了用于缺血性中风管理的有前途的药物输送系统.
- 该策略有效地准缺血性大脑,清除ROS,并调节神经炎症.
- 这种方法为减少神经元损伤和改善缺血性中风后的结果提供了潜在的治疗解决方案.
相关概念视频
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