Neuroprotective effects of chronic administration of levetiracetam in a rat model of diabetic neuropathy

Diabetes Research and Clinical Practice
O ErbasDilek Taşkıran

Abstract

Diabetic neuropathy (DNP) is a frequent and serious complication of diabetes mellitus (DM) that leads to progressive and length-dependent loss of peripheral nerve axons. The purpose of the present study is to assess the neuroprotective effects of levetiracetam (LEV) on DNP in a streptozotocin (STZ)-induced DM model in rats. Adult Sprague-Dawley rats were administered with STZ (60mg/kg) to induce diabetes. DNP was confirmed by electromyography (EMG) and motor function test on 21st day following STZ injection. Study groups were assigned as follows; Group 1: Naïve control (n=8), Group 2: DM+1mL/kg saline (n=12), Group 3: DM+300mg/kg LEV (n=10), Group 4: DM+600mg/kg LEV (n=10). LEV was administered i.p. for 30 consecutive days. Then, EMG, motor function test, biochemical analysis (plasma lipid peroxides and total anti-oxidant capacity), histological and immunohistochemical analysis of sciatic nerves (TUNEL assay, bax, caspase 3, caspase 8 and NGF) were performed to evaluate the efficacy of LEV. Treatment of diabetic rats with LEV significantly attenuated the inflammation and fibrosis in sciatic nerves and prevented electrophysiological alterations. Immunohistochemistry of sciatic nerves showed a considerable increase in bax, caspas...Continue Reading

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Citations

Sep 26, 2017·Molecular Medicine Reports·Jibin ShaChenggang Zhang

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