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- W2767762073 abstract "This study evaluated the effects of Angelica sinensis extract [Dang Gui (DG)] administered before 60[Formula: see text]min of middle cerebral artery occlusion followed by 3[Formula: see text]d of reperfusion and investigated the involvement of mitogen-activated protein kinase (MAPK)/hypoxia-inducible factor (HIF)-1[Formula: see text] signaling in the cortical ischemic penumbra. DG was intraperitoneally administered at a dose of 0.25[Formula: see text]g/kg (DG-0.25g), 0.5[Formula: see text]g/kg (DG-0.5g), or 1[Formula: see text]g/kg (DG-1g) 30[Formula: see text]min before the onset of cerebral ischemia. Our study results revealed that DG-0.5g and DG-1g pretreatment effectively attenuated cerebral infarct and improved neurological deficits. DG-0.5g and DG-1g pretreatment significantly downregulated glial fibrillary acidic protein (GFAP), cytochrome c, and cleaved caspase-3 expression and upregulated phospho-p38 MAPK (p-p38 MAPK)/p38 MAPK, phospho-cAMP response element-binding protein (p-CREB)/CREB, cytosolic and mitochondrial phospho-Bad (p-Bad)/Bad ratios, and HIF-1[Formula: see text], vascular endothelial growth factor-A (VEGF-A), phospho-90 kDa ribosomal S6 kinase (p-p90RSK), and von Willebrand factor (vWF) expression in the cortical ischemic penumbra. Pretreatment with SB203580, a p38 MAPK inhibitor, dramatically abrogated the upregulating effects of DG-1g on p-p38 MAPK/p38 MAPK, p-CREB/CREB, and p-Bad/Bad ratios and HIF-1[Formula: see text], VEGF-A, and vWF expression and the downregulating effects of DG-1g on GFAP, cytochrome c, cleaved caspase-3, and cerebral infarction. DG-0.5g and DG-1g pretreatment provided neuroprotective effects against astrocyte-mediated cerebral infarction by activating angiogenic and anti-apoptotic signaling. Moreover, the angiogenic and anti-apoptotic effects of DG pretreatment can be attributed to the activation of p38 MAPK/HIF-1[Formula: see text]/VEGF-A/vWF signaling and p38 MAPK/HIF-1[Formula: see text]/VEGF-A/p-Bad-related regulation of cytochrome c/caspase-3 signaling, respectively, in the cortical ischemic penumbra 3[Formula: see text]d after reperfusion." @default.
- W2767762073 created "2017-11-17" @default.
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- W2767762073 date "2017-01-01" @default.
- W2767762073 modified "2023-09-30" @default.
- W2767762073 title "<i>Angelica sinensis</i> Exerts Angiogenic and Anti-apoptotic Effects Against Cerebral Ischemia–Reperfusion Injury by Activating p38MAPK/HIF-1α/VEGF-A Signaling in Rats" @default.
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- W2767762073 doi "https://doi.org/10.1142/s0192415x17500914" @default.
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