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- W2080147271 abstract "Cysteamine is a degradation product of the amino acid cysteine and a reduced form of cystamine. Cysteamine exhibits strong antioxidant activity and has been implicated in the treatment of neurodegenerative disorders such as Huntington's disease. In the present study, we investigated whether cysteamine confers protection against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine(MPTP)-induced toxicity in the dopaminergic neurons in a mouse model for Parkinson's disease (PD). The loss of dopaminergic (DA) neurons and reduction in striatal DA concentrations induced by MPTP was ameliorated to a significant extent by pretreatment with low (20 mg/kg/day), but not high (75 mg/kg/day), dose of cysteamine 4 days prior to and subsequently along with the MPTP treatment. Consistently, the increased production of pro-oxidants, such as reactive oxygen species (ROS) and malondialdehyde (MDA), was significantly suppressed by low dose of cysteamine. Conversely, the reduction in GSH level caused by MPTP exposure was significantly attenuated by pretreatment of cysteamine. In addition, the inhibited secretion of the brain-derived neurotrophic factor (BDNF) by neurons derived from substantia nigra pars compact (SNpc) of MPTP-treated mice was significantly restored by cysteamine administration. Our results demonstrate that cysteamine at low dose confers potent neuroprotection against MPTP-induced toxicity of dopaminergic neurons, and may become a potential therapeutic strategy for PD." @default.
- W2080147271 created "2016-06-24" @default.
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- W2080147271 date "2010-06-01" @default.
- W2080147271 modified "2023-10-18" @default.
- W2080147271 title "Effects of cysteamine on MPTP-induced dopaminergic neurodegeneration in mice" @default.
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- W2080147271 doi "https://doi.org/10.1016/j.brainres.2010.03.079" @default.
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