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Abstract Title:

Punica granatum protects against oxidative stress in PC12 cells and oxidative stress-induced Alzheimer's symptoms in mice.

Abstract Source:

J Med Food. 2011 Jul-Aug;14(7-8):695-701. Epub 2011 Jun 1. PMID: 21631359

Abstract Author(s):

Soo Jung Choi, Ju-Hyun Lee, Ho Jin Heo, Hong Yon Cho, Hye Kyung Kim, Chang-Ju Kim, Myeong Ok Kim, Soo Hwan Suh, Dong-Hoon Shin

Article Affiliation:

School of Life Science and Biotechnology, Korea University, Seoul, Korea.

Abstract:

Alzheimer's disease (AD) is a progressive degenerative brain disorder that is characterized by neuronal loss, neurofibrillary tangles, and the abnormal deposition of senile plaque and amyloidβ peptide (Aβ). The brains of AD patients are under intense oxidative stress. The overproduction of Aβ leads to Aβ-associated free radical oxidative stress. In this study, the antioxidative and neuronal protective effects of Punica granatum extract were investigated against oxidative stress-induced cytotoxicity in PC12 cells. The ethanol extracts of P. granatum protected PC12 cells from hydrogen peroxide (H₂O₂-induced oxidative stress. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide reduction assays revealed a significant increase in cell viability when oxidatively stressed PC12 cells were treated with the P. granatum extract. To examine the effects of P. granatum on Aβ₁₋₄₂-induced learning and memory impairment in mice, in vivo behavioral tests were performed. Treatment with the extract of P. granatum increased step-through latency in mice injected with Aβ₁₋₄₂. The results of this study suggest that the ethanol extract of P. granatum mitigated H₂O₂-induced oxidative stress in PC12 cells. In addition, the extract inhibited neuronal cell death caused by Aβ-induced oxidative stress and Aβ-induced learning and memory deficiency.

Study Type : Animal Study

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Sayer Ji
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