装有Danshensu的纳米载体用于通过减少氧化应激和质过度激活来治疗缺血性中风
Cuihong Wang1, Zhicheng Xiao2, Jinhui Fan2
1Department of Pharmacy, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, China.
ACS omega
|August 26, 2024
概括
这项研究引入了一种新型纳米粒子网络,载有Danshensu来治疗缺血性中风. 目标纳米颗粒减少氧化应激和质细胞过度活化,保护大脑组织免受伤害.
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.
- 材料科学 材料科学 材料科学
背景情况:
- 缺血性中风会通过缺血和亡引起大脑组织损伤.
- 质细胞过度活化会通过炎症和氧化应激加剧损伤.
研究的目的:
- 开发一个有针对性的纳米粒子网络,以传递Danshensu来拯救缺血半阴影.
- 为了减少缺血性脑损伤中的氧化应激和质细胞过度活化.
主要方法:
- 使用奇托,醇基和碳氧甲基-β-环极,涂上PHSRN,装载Danshensu的3D纳米粒子网络的制造.
- 在大鼠缺血/再输血模型中,通过与血脑屏障上的整合素α5β1结合,在受损的大脑中准积累.
- ROS触发的醇的水解,用于响应性药物释放和ROS消耗.
主要成果:
- 在受损的大脑组织中积累的纳米粒子.
- 响应性药物释放和ROS清理由Danshensu.
- 抑制天体细胞激活,减少促炎性细胞因子分泌,减少神经元亡.
结论:
- 经PHSRN基改性纳米粒子网络有效地将Danshensu传递到缺血半阴.
- 这种方法减轻了氧化应激和质细胞过度活化,为缺血性中风提供了一个有前途的治疗策略.
相关概念视频
Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
Ischemic Stroke l: Introduction
Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.


