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• W4313339538 abstract "Abstract Background and purpose Cerebral ischemia‐reperfusion (I/R) injury is a major factor underlying the high mortality and morbidity rates in stroke patients. Our previous study found that the combination of Astragalus membranaceus extract and ligustrazine (Ast+Lig) treatment could protect brain tissues against inflammation in rats with thrombolytic cerebral ischemia. Activation of N‐methyl‐D‐aspartate receptors (NMDAR) is implicated in brain damage induced by cerebral I/R injury. Methods We used in vivo and in vitro models of cerebral I/R injury for middle cerebral artery occlusion/reperfusion in mice and oxygen‐glucose deprivation/reoxygenation in primary rat cerebral cortical neurons to evaluate the protective effects of Ast+Lig on cerebral I/R injury, and whether the protective mechanism was related to the regulation of NMDAR‐ERK/CREB signaling. Results Treatment with Ast+Lig, or MK‐801 (an inhibitor of NMDAR) significantly ameliorated neurological deficits, decreased infarct volumes, suppressed neuronal damage and Ca 2+ influx, and maintained the mitochondrial membrane potential in vivo and in vitro following cerebral I/R injury based on 2,3,5‐triphenyl tetrazolium chloride staining, immunohistochemistry, and immunofluorescent staining. Furthermore, treatment with Ast+Lig evidently prevented the upregulation of NR2B, but not NR2A, in vivo and in vitro following cerebral I/R injury based on western blotting and reverse transcription‐quantitative PCR analyses. Moreover, treatment with Ast+Lig significantly increased the phosphorylation of ERK and CREB, as well as increasing their mRNA expression levels in vivo and in vitro following cerebral I/R injury. Conclusions The overall results thus suggest that the Ast+Lig combination conferred neuroprotective properties against cerebral I/R injury via regulation of the NR2B‐ERK/CREB signaling pathway." @default.
• W4313339538 created "2023-01-06" @default.
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• W4313339538 date "2022-12-31" @default.
• W4313339538 modified "2023-10-15" @default.
• W4313339538 title "The combination of <i>Astragalus membranaceus</i> and ligustrazine mitigates cerebral ischemia‐reperfusion injury via regulating NR2B‐ERK/CREB signaling" @default.
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• W4313339538 doi "https://doi.org/10.1002/brb3.2867" @default.
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