Programmed cell death in the lithium pilocarpine model: evidence for NMDA receptor and ceramide-mediated mechanisms.

Published

Journal Article

Ceramide is known to induce programmed cell death (PCD) in neural and non-neural tissues and to increase after kainic acid (KA) status epilepticus (SE). Ceramide increases have been shown to depend on NMDA receptor activation in the KA model, but these changes have not been studied in the lithium pilocarpine (LiPC) model. Thus, the purpose of this study was to determine if hippocampal ceramide levels increase after LiPC induced SE and if NMDA receptor blockade prevents PCD and any such ceramide increases. We found that LiPC induced SE resulted in ceramide increases and DNA fragmentation in the hippocampus of adult, P21, and P7 rats. The administration of MK-801, the NMDA receptor antagonist, in adults, 15min prior to pilocarpine, prevented ceramide increases, and DNA fragmentation.

Full Text

Duke Authors

Cited Authors

  • Mikati, MA; Rizk, E; El Dada, S; Zeinieh, M; Kurdi, R; El Hokayem, J; Rahmeh, A; Koubeissi, M; Azzam, D; Usta, J; El Sabban, M; Dbaibo, G

Published Date

  • September 2008

Published In

Volume / Issue

  • 30 / 8

Start / End Page

  • 513 - 519

PubMed ID

  • 18295995

Pubmed Central ID

  • 18295995

Electronic International Standard Serial Number (EISSN)

  • 1872-7131

International Standard Serial Number (ISSN)

  • 0387-7604

Digital Object Identifier (DOI)

  • 10.1016/j.braindev.2008.01.002

Language

  • eng