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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

Neuro protective effect of Naringenin against MPTP induced oxidative stress.

Abstract Source:

Int J Neurosci. 2018 Nov 15:1-7. Epub 2018 Nov 15. PMID: 30433834

Abstract Author(s):

Mani Sugumar, Murugan Sevanan, Sathiya Sekar

Article Affiliation:

Mani Sugumar

Abstract:

BACKGROUND: Parkinson's disease is the most common neurodegenerative disorder, characterized by loss of dopaminergic neurons in substantia nigra and depletion of dopamine in striatum due to excitotoxicity, oxidative stress and many other factors may contribute to MPTP- and PD-related neurodegeneration. The present study deals with the neuroprotective effect of Naringenin (NGN), a bioflavonoid against MPTP induced Parkinson's disease in the mouse model.

METHODS: Healthy male C57BL/6J mice (18-22 g b wt) were pretreated with NGN [25, 50,100 mg/kg/b.wt, p.o] once daily for 5 days. Thereafter, 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP) (80 mg/kg b.wt, i.p) was given in two divided doses (2 x 40 mg/kg at 16h interval). The animals were observed for motor functions 48 hours after the first MPTP injection. After completion of behaviour tasks, all animals were euthanized to dissect out the brain and used for biochemical, molecular and histopathological investigations.

RESULTS: Pretreatment of NGN significantly reversed the toxic effects of MPTP by reducing LPO levels and increasing the activities of glutathione reductase and catalase along with improved behavioral performance. Interestingly, pre-treatment with NGN down-regulated iNOS expression level in MPTP intoxicated mice brain. In addition, the histopathological evaluation revealed that NGN decreased the nuclear pigmentation and cytoplasmic vacuolation in the substantia nigra and striatal regions when compared to MPTP intoxicated mice brain.

DISCUSSION: The present study showed that NGN exerts neuroprotection by suppressing oxidative stress via antioxidant mechanisms. The above finding suggests that NGN may act as a potential target in the management of PD.

Study Type : Animal Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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