Add time:08/16/2019         Source:sciencedirect.com

2-(4-Methoxyphenyl)ethyl-2-acetamido-2-deoxy-β-d-pyranoside (salidroside analog-4g, SalA-4g), has shown neuroprotective prospects for the treatment of ischemic stroke. However, the dose–response and time window study for SalA-4g, and the mechanism of SalA-4g-mediated neuroprotection remain unclear. Here, we systematically investigated the therapeutic time window and dosage of SalA-4g in permanent focal cerebral ischemia in rats. SalA-4g dose-dependently improved stroke outcome. Either pre-treatment or post-treatment of SalA-4g exhibited notable neuroprotection, and maintained for up to 6 h after ischemia onset. Moreover, significant neurological functional recovery was found after SalA-4g administration in long-term functional assays. Further studies suggested that SalA-4g ameliorated neuronal cell death, elevated local glucose metabolism and enhanced the expression level of glucose transporter 1 and 3 in the ipsilateral cortex and striatum. We suggest that data of this study are critical in exploring the clinical application prospects of SalA-4g for the treatment of ischemic stroke.

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