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FASEB J. 2003 Oct;17(13):1775-88.

Speed kills: cellular and molecular bases of methamphetamine-induced nerve terminal degeneration and neuronal apoptosis.

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  • 1Molecular Neuropsychiatry Branch, NIH, NIDA, Intramural Research Program, Department of Health and Human Services, 5500 Nathan Shock Dr., Baltimore, Maryland 21224, USA. jcadet@intra.nida.nih.gov

Abstract

Methamphetamine (METH) is a drug of abuse that has long been known to damage monoaminergic systems in the mammalian brain. Recent reports have provided conclusive evidence that METH can cause neuropathological changes in the rodent brain via apoptotic mechanisms akin to those reported in various models of neuronal death. The purpose of this review is to provide an interim account for a role of oxygen-based radicals and the participation of transcription factors and the involvement of cell death genes in METH-induced neurodegeneration. We discuss data suggesting the participation of endoplasmic reticulum and mitochondria-mediated activation of caspase-dependent and -independent cascades in the manifestation of METH-induced apoptosis. Studies that use more comprehensive approaches to gene expression profiling should allow us to draw more instructive molecular portraits of the complex plastic and degenerative effects of this drug.

PMID:
14519657
DOI:
10.1096/fj.03-0073rev
[PubMed - indexed for MEDLINE]
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