کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2536274 | 1559149 | 2007 | 5 صفحه PDF | دانلود رایگان |
The aim of the present investigation was to assess neuroprotection exerted by diazepam (0.1–25 μM) in rat cortical brain slices subjected to oxygen–glucose deprivation and reoxygenation. Neuronal injury and neuroprotection were assessed by measuring the release of glutamate and lactate dehydrogenase and tissue water content. Results demonstrate that diazepam exerted neuroprotective effects according to a “U-shaped”, hormetic-like, concentration-response curve, with an efficacy window of 0.5–5 μM concentration. Flumazenil (20 μM) fully antagonised neuroprotection afforded by 5 μM diazepam. In conclusion, the hormetic response of diazepam should be taken into consideration when designing experiments aimed at assessing diazepam neuroprotection against ischemia/reoxygenation injury.
Journal: European Journal of Pharmacology - Volume 561, Issues 1–3, 30 April 2007, Pages 80–84