PMID- 16958132 OWN - NLM STAT- MEDLINE DCOM- 20070103 LR - 20131121 IS - 0360-4012 (Print) IS - 0360-4012 (Linking) VI - 84 IP - 7 DP - 2006 Nov 15 TI - Ethyl pyruvate attenuates kainic acid-induced neuronal cell death in the mouse hippocampus. PG - 1505-11 AB - Recent studies have shown that ethyl pyruvate (EP) acts as an anti-inflammatory molecule in several cell lines including RAW264.7 macrophages. However, the potential therapeutic value of EP for the treatment of the pathologic brain has not been investigated fully. In the present study, we examined whether EP has a beneficial effect on KA-induced neuronal cell death. Intracerebroventricular (i.c.v.) injection of 0.94 nmol (0.2 mug) of KA produced typical neuronal cell death in the CA1 and CA3 pyramidal layers of the hippocampus, and the systemic administration of EP significantly attenuated KA-induced neuronal cell death in these regions. Ethyl pyruvate was found to exert a protective effect when it was injected as late as 12 hr after KA-injection. Moreover, this EP-induced neuroprotection was accompanied by reduced levels of reactive gliosis and COX-2, IL-1beta, and TNF-alpha in the hippocampus. In addition, in passive avoidance tests, KA-induced memory impairment was improved markedly by EP. These results suggest that EP has a therapeutic potential for suppressing KA-induced pathogenesis in the brain. FAU - Cho, Ik-Hyun AU - Cho IH AD - Ewha Institute of Neuroscience and Department of Neuroscience, Ewha Womans University, Seoul, Republic of Korea. FAU - Kim, Seung-Woo AU - Kim SW FAU - Kim, Jung-Bin AU - Kim JB FAU - Kim, Tae-Kyung AU - Kim TK FAU - Lee, Kang-Woo AU - Lee KW FAU - Han, Pyung-Lim AU - Han PL FAU - Lee, Ja-Kyeong AU - Lee JK LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurosci Res JT - Journal of neuroscience research JID - 7600111 RN - 0 (Excitatory Amino Acid Agonists) RN - 0 (Interleukin-1beta) RN - 0 (Neuroprotective Agents) RN - 0 (Pyruvates) RN - 0 (RNA, Messenger) RN - 0 (Tumor Necrosis Factor-alpha) RN - 03O98E01OB (ethyl pyruvate) RN - EC 1.14.99.1 (Cyclooxygenase 2) RN - SIV03811UC (Kainic Acid) SB - IM MH - Animals MH - Avoidance Learning/drug effects/physiology MH - Behavior, Animal/drug effects MH - Cell Count/methods MH - Cell Death/drug effects MH - Cyclooxygenase 2/genetics/metabolism MH - Dose-Response Relationship, Drug MH - Drug Interactions MH - Excitatory Amino Acid Agonists/toxicity MH - Hippocampus/*pathology MH - Immunohistochemistry/methods MH - Interleukin-1beta/genetics/metabolism MH - Kainic Acid/toxicity MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Neurons/*drug effects MH - Neuroprotective Agents/*pharmacology MH - Neurotoxicity Syndromes/etiology/pathology/physiopathology/*prevention & control MH - Pyruvates/*pharmacology MH - RNA, Messenger/biosynthesis MH - Reaction Time/drug effects MH - Reverse Transcriptase Polymerase Chain Reaction/methods MH - Time Factors MH - Tumor Necrosis Factor-alpha/genetics/metabolism EDAT- 2006/09/08 09:00 MHDA- 2007/01/04 09:00 CRDT- 2006/09/08 09:00 PHST- 2006/09/08 09:00 [pubmed] PHST- 2007/01/04 09:00 [medline] PHST- 2006/09/08 09:00 [entrez] AID - 10.1002/jnr.21052 [doi] PST - ppublish SO - J Neurosci Res. 2006 Nov 15;84(7):1505-11. doi: 10.1002/jnr.21052.