Neuroprotective effects of Astilbin on MPTP-induced Parkinson's disease mice: Glial reaction, α-synuclein expression and oxidative stress.
Int Immunopharmacol
; 66: 19-27, 2019 Jan.
Article
em En
| MEDLINE
| ID: mdl-30419450
ABSTRACT
Astilbin (AST), a dihydro-flavonol glycoside, is a major bioactive ingredient in Astilbe thunbergii, Engelhardia roxburghiana, Smilax corbularia and Erythroxylum gonocladum, and has been shown to have anti-inflammatory, antioxidative and neuroprotective effects, suggesting potential therapeutic value in the treatment of Parkinson's disease (PD). We explored the neuroprotective effects of AST in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced Parkinson's disease mice. Mice were administered with MPTP (30â¯mg/kg, i.p) daily for 5â¯days, to establish a subacute Parkinson's disease model, followed by daily treatment with AST or saline for 7â¯days. Pole and traction tests showed that AST ameliorated the impaired motor functions in MPTP-induced Parkinson's disease mice. High performance liquid chromatography analysis revealed that AST treatment prevented MPTP-induced decreases in striatal dopamine levels. Immunofluorescence assays showed that AST reduced the loss of dopaminergic neurons and the activation of microglia and astrocytes in the substantia nigra. Western blot analyses revealed that AST suppressed α-synuclein overexpression and activated PI3K/Akt in the striatum following MPTP treatment. AST also prevented the MPTP-induced reduction in total superoxide dismutase and glutathione activity in the striatum. AST exerts neuroprotective effects on MPTP-induced PD mice by suppressing gliosis, α-synuclein overexpression and oxidative stress, suggesting that AST could serve as a therapeutic drug to ameliorate PD.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doença de Parkinson
/
Astrócitos
/
Microglia
/
Fármacos Neuroprotetores
/
Intoxicação por MPTP
/
Flavonóis
/
Neurônios Dopaminérgicos
Limite:
Animals
/
Humans
/
Male
Idioma:
En
Revista:
Int Immunopharmacol
Assunto da revista:
ALERGIA E IMUNOLOGIA
/
FARMACOLOGIA
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
China