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- W2034004482 abstract "Methamphetamine (METH) has been known to produce neurotoxicity via generation of reactive oxygen and nitrogen species. Selenium, an antioxidant, was reported to protect against METH-induced dopaminergic neurotoxicity in mouse caudate nucleus. In the present study, the in vitro and in vivo efficacy of the supplementation of selenium was studied in METH-induced generation of peroxynitrite. PC12 cell cultures were exposed to 200 μM METH either with or without 10 μM and 20 μM selenium (30 min prior to METH exposure). After 24 h, METH exposure resulted in the significant depletion of dopamine, and its metabolites DOPAC and HVA, as well as the significant formation of 3-nitrotyrosine (3-NT), a marker of peroxynitrite generation, in PC12 cell cultures. Selenium supplementation attenuated the depletion of dopamine and its metabolites, DOPAC and HVA and the formation of 3-NT in PC12 cells. For in vivo studies, adult male mice were supplemented with selenium in drinking water, 1 week before and 1 week after the multiple injections of METH (4×10 mg/kg, i.p. at 2-h interval) or an equivalent volume of saline. The supplementation of Se attenuated the formation of 3-NT in the striatum resulting from METH treatment. These data suggest that METH-induced neurotoxicity is mediated by the production of peroxynitrite, and selenium plays a protective role in METH-induced neurotoxicity." @default.
- W2034004482 created "2016-06-24" @default.
- W2034004482 creator A5016755104 @default.
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- W2034004482 date "2000-02-01" @default.
- W2034004482 modified "2023-10-14" @default.
- W2034004482 title "Selenium, an antioxidant, attenuates methamphetamine-induced dopaminergic toxicity and peroxynitrite generation" @default.
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- W2034004482 doi "https://doi.org/10.1016/s0006-8993(99)02249-0" @default.
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