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Original Article

Korean J Physiol Pharmacol 2008; 12(6): 287-292

Published online December 30, 2008 https://doi.org/10.4196/kjpp.2008.12.6.287

Copyright © Korean J Physiol Pharmacol.

Pre-ischemic Treatment with Ampicillin Reduces Neuronal Damage in the Mouse Hippocampus and Neostriatum after Transient Forebrain Ischemia

Kyung-Eon Lee, Seul-Ki Kim, Kyung-Ok Cho, and Seong Yun Kim*

Department of Pharmacology, Cell Death Disease Research Center, College of Medicine, The Catholic University of Korea, Seoul 137-701, Korea

Erratum: Korean J Physiol Pharmacol 2008;12(6):287-291

Abstract

Ampicillin, a Ղ-lactam antibiotic, has been reported to induce astrocytic glutamate transporter-1 which plays a crucial role in protecting neurons against glutamate excitotoxicity. We investigated the effect of ampicillin on neuronal damage in the mouse hippocampus and neostriatum following transient global forebrain ischemia. Male C57BL/6 mice were anesthetized with halothane and subjected to bilateral occlusion of the common carotid artery for 40 min. Ampicillin was administered post-ischemically (for 3 days) and/or pre-ischemically (for 3∼5 days until one day before the onset of ischemia). Pre- and post-ischemic treatment with ampicillin (50 mg/kg/day or 200 mg/kg/day) prevented ischemic neuronal death in the medial CA1 area of the hippocampus as well as the neostriatum in a dose-dependent manner. In addition, ischemic neuronal damage was reduced by pre-ischemic treatment with ampicillin (200 mg/kg/day). In summary, our results suggest that ampicillin plays a functional role as a chemical preconditioning agent that protects hippocampal neurons from ischemic insult.

Keywords: Ampicillin, Neuroprotection, Hippocampus, Neostriatum, Global forebrain ischemia, Mice