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  • Neuroprotective Effect of Activated Protein C on Blood-Brain Barrier Injury During Focal Cerebral Ischemia/Reperfusion.

Neuroprotective Effect of Activated Protein C on Blood-Brain Barrier Injury During Focal Cerebral Ischemia/Reperfusion.

Dose-response : a publication of International Hormesis Society (2020-05-20)
Jinqiao Wang, Gaofeng Rao, Yifan Ma, Jingjing Zhang, Jingjing Shen, Chaohong Shi
摘要

Although the effect of activated protein C (APC) on neuronal injury and neuroinflammatory responses has been extensively studied, the detailed mechanism underlying APC-protective effect in the blood-brain barrier (BBB) injury during ischemia is still not clear. In this study, the APC effect against neuroinflammatory responses was evaluated in the model of right middle cerebral artery occlusion in male Sprague-Dawley rats with 2 hours of ischemia and 22 hours of reperfusion. The results showed that APC can significantly improve the neurological function scoring and reduce the infarct volume and BBB permeability. Moreover, the expression of protein nuclear factor-kappa B (NF-κB), both in cytoplasm and nuclei, was reduced. The downstream of NF-κB activation, including tumor necrosis factor-α and interleukin-1β secretion, was inhibited. In all, APC exerts a neuroprotective effect in focal cerebral ischemia-reperfusion in rats by inhibiting the activation and nuclear translocation of NF-κB. It may indicate a therapeutic approach for ischemic brain injury.

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Sigma-Aldrich
Protein C 来源于人类血浆, Activated, lyophilized powder, ≥90% (SDS-PAGE)
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