莫里斯水上航行任务
尼氏体
线粒体
海马体
血管性痴呆
标记法
生物
线粒体ROS
医学
痴呆
病理
神经科学
细胞生物学
染色
免疫组织化学
疾病
作者
Deng‐Pan Wu,Yan‐Su Wei,Yuxuan Du,Lingling Liu,Qiu‐Qing Yan,Yuan‐Dan Zhao,Chao Yu,Jinyuan Liu,Zhen-Guo Zhong,Jinlan Huang
摘要
Background: Mitochondrial dysfunction plays a vital role in the progression of vascular dementia (VaD). We hypothesized that transfer of exogenous mitochondria might be a beneficial strategy for VaD treatment. Objective: The study was aimed to investigate the role of mitochondrial therapy in cognitive function of VaD. Methods: The activity and integrity of isolated mitochondria were detected using MitoTracker and Janus Green B staining assays. After VaD mice were intravenously injected with exogenous mitochondria, Morris water maze and passive avoidance tests were used to detect cognitive function of VaD mice. Haematoxylin and eosin, Nissl, TUNEL, and Golgi staining assays were utilized to measure neuronal and synaptic injury in the hippocampus of VaD mice. Detection kits were performed to detect mitochondrial membrane potential (ΔΨ), SOD activity and the levels of ATP, ROS, and MDA in the brains of VaD mice. Results: The results showed that isolated mitochondria were intact and active. Mitochondrial therapy could ameliorate cognitive performance of VaD mice. Additionally, mitochondrial administration could attenuate hippocampal neuronal and synaptic injury, improve mitochondrial ΔΨ, ATP level and SOD activity, and reduce ROS and MDA levels in the brains of VaD mice. Conclusions: The study reports profitable effect of mitochondrial therapy against cognitive impairment of VaD, making mitochondrial treatment become a promising therapeutic strategy for VaD.
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