相关实验视频

Updated: Jun 12, 2025

A Low Mortality Rat Model to Assess Delayed Cerebral Vasospasm After Experimental Subarachnoid Hemorrhage

A Low Mortality Rat Model to Assess Delayed Cerebral Vasospasm After Experimental Subarachnoid Hemorrhage

Published on: January 17, 2013

氧化素-5通过减少氧化应激减轻子关节下出血后的早期脑损伤

Jinshuo Yang¹, Qiaowei Wu¹, Shuai Lan¹

¹Department of Neurosurgery, First Affiliated Hospital of Harbin Medical University, Harbin, China.

Brain research bulletin

|September 26, 2024

概括

升高的Peroxiredoxin-5 (Prdx5) 降低了氧化应激和亡在脑下下关节出血 (SAH) 后的早期脑损伤. 这种抗氧化疗法改善了老鼠的神经功能,为SAH患者提供了潜在的治疗方法.

科学领域:

神经科学是一个神经科学.
生物化学生物化学
细胞生物学细胞生物学

背景情况:

副arachnoid出血 (SAH) 引发氧化应激和亡,导致早期脑损伤 (EBI).
Peroxiredoxin-5 (Prdx5),一种神经元线粒体抗氧化剂,在SAH诱导的EBI中没有明确的作用.
这项研究研究了Prdx5在SAH的老鼠模型中的神经保护作用.

研究的目的:

在SAH后的老鼠中阐明Prdx5的抗氧化应激和抗亡作用.
为了确定上调Prdx5表达是否可以减轻SAH后的EBI.
探索Prdx5在SAH中的治疗潜力.

主要方法:

在Sprague-Dawley大鼠中创建了一个SAH模型.
再组合Prdx5 (rPrdx5) 被注射入鼻以增加Prdx5水平.
使用Prdx5小干扰RNA (siRNA) 来抑制Prdx5的表达.
神经保护通过行为测试,脑水含量,BBB透性和氧化应激和亡的分子标志物进行评估.

主要成果:

在SAH下降了内源Prdx5表达.
rPrdx5治疗改善了神经功能,减少了脑 edem 和 BBB 透性,并缓解了氧化应激和亡.
rPrdx5增加了抗亡蛋白质 (Bcl-XL,Bcl-2) 和减少了亲亡蛋白质 (Bax,Cleaved Caspase-3).
Prdx5 siRNA的使用逆转了这些保护作用.

结论:

抑制Prdx5表达减少了SAH诱导的EBI中的氧化应激和亡.
Prdx5在缓解神经元损伤和改善SAH后的神经结果方面发挥着关键作用.
准线粒体Prdx5为SAH提供了一个有前途的治疗策略.

关键词:

早期脑损伤是什么意思氧化应激是一种氧化应激.氧素-5-5的使用方法甲状腺下下垂体出血

更多相关视频

Oxygen-Glucose Deprivation and Reoxygenation as an In Vitro Ischemia-Reperfusion Injury Model for Studying Blood-Brain Barrier Dysfunction

Oxygen-Glucose Deprivation and Reoxygenation as an In Vitro Ischemia-Reperfusion Injury Model for Studying Blood-Brain Barrier Dysfunction

Published on: May 7, 2015

Experimental Models to Study the Neuroprotection of Acidic Postconditioning Against Cerebral Ischemia

Experimental Models to Study the Neuroprotection of Acidic Postconditioning Against Cerebral Ischemia

Published on: July 31, 2017

相关概念视频

Peroxisomes

Peroxisomes

Peroxisomes are specialized organelles present in fungi, plant, and animal cells. It can vary in number, size, morphology, and activity depending on the type of tissue and the nutritional state of the cell. For example, cells with active lipid metabolism, such as adipocytes, neurons, and hepatocytes, have more peroxisomes than other cells in the body. Besides their primary role in breaking down complex organic molecules, peroxisomes can also synthesize specific macromolecules and participate in...