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Brain Res. 1999 Feb 13;818(2):575-8.

Selenium, an antioxidant, protects against methamphetamine-induced dopaminergic neurotoxicity.

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Neurochemistry Laboratory, Division of Neurotoxicology, National Center for Toxicological Research, FDA, Jefferson, AR, USA.


Dopaminergic changes were studied in the caudate nucleus of adult female mice after pre- and post-treatment with an antioxidant, selenium, 72 h after the multiple injections of methamphetamine (METH, 4x10 mg/kg, i.p. at 2-h interval) or an equivalent volume of saline. Selenium treatment prevented the depletion of dopamine (DA) and its metabolites 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) in caudate nucleus resulting from the METH treatment. These data suggest that METH-induced neurotoxicity is mediated by free radical and selenium plays a protective role against METH-induced dopaminergic neurotoxicity.

[Indexed for MEDLINE]

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