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pubmed-article:14713299pubmed:abstractTextThe present study was undertaken to assess the ability of 4-hydroxytamoxifen (4-OHT) to alter methamphetamine-induced nigrostriatal dopaminergic toxicity. Three daily doses of 4-OHT (6 micro g/day) effectively attenuated methamphetamine-induced nigrostriatal dopamine depletions in both sexes of intact and gonadectomized C57BL/6 J mice. 4-OHT alone did not alter the dopamine content levels in the striatum. Both male and female mice exhibited similar Cu, Zn-superoxide dismutase protein levels in the striata whether after gonadectomy or 4-OHT treatment. Furthermore, basal body temperature and methamphetamine-induced hyperthermia were not affected by 4-OHT treatment in either sex of mice. Using a lucigenen-derived chemiluminescence assay, we found that 4-OHT by itself can serve as a potent superoxide anion radical scavenger in vitro. The protective effects of 4-OHT against methamphetamine-induced nigrostriatal dopamine depletion can be, in part, due to its antioxidative characteristics. The free radical-scavenging ability of 4-OHT calls for further investigations for its uses in clinical practice.lld:pubmed
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pubmed-article:14713299pubmed:authorpubmed-author:KuoYu-MinYMlld:pubmed
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pubmed-article:14713299pubmed:authorpubmed-author:ShiehChih-Cha...lld:pubmed
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pubmed-article:14713299pubmed:pagination1436-43lld:pubmed
pubmed-article:14713299pubmed:dateRevised2007-11-15lld:pubmed
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pubmed-article:14713299pubmed:articleTitle4-Hydroxytamoxifen attenuates methamphetamine-induced nigrostriatal dopaminergic toxicity in intact and gonadetomized mice.lld:pubmed
pubmed-article:14713299pubmed:affiliationDepartment of Cell Biology and Anatomy, National Cheng Kung University College of Medicine, Tainan, Taiwan.lld:pubmed
pubmed-article:14713299pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:14713299pubmed:publicationTypeComparative Studylld:pubmed
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