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Mechanism of ischemic brain injury repair by endothelial progenitor cell ‑derived exosomes
Mol Med Rep. 2022 Aug;26(2):269. doi: 10.3892/mmr.2022.12785. Epub 2022 Jul 1.ABSTRACTIschemic stroke is a refractory disease that seriously endangers human health and life. The main treatment aim of stroke is to alleviate brain injury. The present study aimed to investigate the effects and mechanisms of endothelial progenitor cell (EPC)‑derived exosomes in repairing ischemic brain injury. Sprague‑Dawley rat models of cerebral ischemia‑reperfusion (IR) injury were established by middle cerebral artery occlusion. The IR model rats were then treated with PBS, EPC or exosomes; untreated and Sham rats were used as contro...
Source: Molecular Medicine - July 1, 2022 Category: Molecular Biology Authors: Rui Huang Tianxiang Cheng Xianliang Lai Source Type: research

Fraxetin protects rat brains from the cerebral stroke via promoting angiogenesis and activating PI3K/Akt pathway
CONCLUSION: Fraxetin has protective effects on the brain ischemia-reperfusion injury and promotes angiogenesis for cerebral repair via phosphorylation of PI3K and Akt.PMID:35285387 | DOI:10.1080/08923973.2022.2052893
Source: Immunopharmacology and Immunotoxicology - March 14, 2022 Category: Allergy & Immunology Authors: Yuhuan Cui Meihong Liu Li Zuo Haiyan Wang Jian Liu Source Type: research

Protective effects of Dimethyl malonate on neuroinflammation and blood-brain barrier after ischemic stroke
Conclusions DMM could regulate activation and polarization of microglia to inhibit neuroinflammation and protect BBB.
Source: NeuroReport - September 3, 2021 Category: Neurology Tags: Degeneration and Repair Source Type: research

Neurovascular protection of salvianolic acid B and ginsenoside Rg1 combination against acute ischemic stroke in rats
Ischemic stroke continues to be a major global health problem associated with considerable mortality and morbidity. Thus, it is still targeted by researchers for developing new strategies or drugs to alleviate the lesion of stroke. In the present study, both the permanent occlusion of the middle cerebral artery (MCAO) model and the restoration of cerebral blood flow after middle cerebral artery occlusion (CI/R) model were set up for evaluating the efficiency of salvianolic acid B and ginsenoside Rg1 combination (SalB-Rg1). SalB-Rg1 decreased infarct area through 3,5-triphenyltetrazolium chloride stain and improved neurolog...
Source: NeuroReport - August 16, 2021 Category: Neurology Tags: Degeneration and Repair Source Type: research

Waggle needling wields preferable neuroprotective and anti-spastic effects on post-stroke spasticity rats by attenuating γ-aminobutyric acid transaminase and enhancing γ-aminobutyric acid.
This study was designed to compare the anti-spastic effect of waggle needling to the routine needling and to explore its underlying mechanism. We established post-stroke spasticity model based on ischemia stroke operation (middle cerebral artery occlusion). Rats were divided into six groups: normal control group, sham-operated control group, ischemia stroke model group, waggle needling group, routine needling group and baclofen group. Neurological function and muscle tone were assessed by the Zea Longa score and modified Ashworth scale, respectively. Indirect muscle tone was testified with electrophysiological recording. C...
Source: NeuroReport - June 9, 2020 Category: Neurology Tags: Degeneration and Repair Source Type: research

Orally Administered Crocin Protects Against Cerebral Ischemia/Reperfusion Injury Through the Metabolic Transformation of Crocetin by Gut Microbiota
Conclusion Collectively, pharmacokinetic and pharmacodynamic association studies provide evidence that the gut microbiota plays a vital role in the fate of crocin and crocetin in the gastrointestinal tract. In addition, the cross-interaction between gut microbiota and crocin might mediate the activation of the cerebral-protective effect of orally administered crocin. Ethics Statement This study was carried out in accordance with the recommendations of ‘Institutional Animal Research Committee guidelines, Animal Ethics Committee of China Pharmaceutical University.’ The protocol was approved by the ‘An...
Source: Frontiers in Pharmacology - April 29, 2019 Category: Drugs & Pharmacology Source Type: research

Inhibition of soluble epoxide hydrolase regulates monocyte/macrophage polarization and improves neurological outcome in a rat model of ischemic stroke
This study aimed to evaluate whether a selective sEH inhibitor, 12-(3-adamantan-1-yl-ureido)-dodecanoic acid (AUDA), can regulate monocyte/macrophage polarization and improve motor function in the rats with ischemic stroke induced by middle cerebral artery occlusion. We measured the infarct volume with 2,3,5-triphenyltetrazolium chloride staining and used the rotarod test to assess motor performance in rats. The monocyte/macrophage activation and mRNA expression of proinflammatory mediators were measured by flow cytometry and reverse-transcription quantitative PCR, respectively. Our results showed better neurological funct...
Source: NeuroReport - April 27, 2019 Category: Neurology Tags: DEGENERATION AND REPAIR Source Type: research

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