Neuroprotective Effects of Methanol Extracts of Jeju Native Plants on Hydrogen Peroxide-induced Cytotoxicity in SH-SY5Y Human Neuroblastoma Cells.
- Author:
Pil Jae KONG
1
;
Yu Mi KIM
;
Hee Jae LEE
;
Sung Soo KIM
;
Eun Sook YOO
;
Wanjoo CHUN
Author Information
1. Department of Pharmacology, College of Medicine, Kangwon National University, Chunchon 200-701, Korea. wchun@kangwon.ac.kr
- Publication Type:Original Article
- Keywords:
Neuroprotection;
Jeju native plants;
Hydrogen peroxide;
Caspase-3
- MeSH:
Alzheimer Disease;
Caspase 3;
Cell Death;
China;
Glutathione;
Humans*;
Hydrogen Peroxide;
Hydrogen*;
Korea;
Methanol*;
Neuroblastoma*;
Neurodegenerative Diseases;
Neurons;
Neuroprotective Agents*;
Oxidative Stress;
Parkinson Disease;
Plant Extracts;
Plants, Medicinal;
Saururaceae;
Smilax
- From:The Korean Journal of Physiology and Pharmacology
2007;11(5):171-174
- CountryRepublic of Korea
- Language:English
-
Abstract:
Neuronal death is a common characteristic hallmark of a variety of neurodegenerative disorders including Alzheimer's disease and Parkinson's disease. However, there have been no effective drugs to successfully prevent neuronal death in those diseases, whereas oriental medicinal plants have to possess valuable therapeutic potentials to treat neurodegenerative diseases. In the present study, in an attempt to provide neuroprotective agents from natural plants, 80% methanol extracts of a wide range of medicinal plants, which are native to Jeju Island in Korea, were prepared and their protective effects on hydrogen peroxide-induced apoptotic cell death were examined. Among those tested, extracts from Smilax china and Saururus chinesis significantly decreased hydrogen peroxide-induced apoptotic cell death. The extracts attenuated hydrogen peroxide (H2O2)-induced caspase-3 activation in a dose-dependent manner. Further, plant extracts restored H2O2-induced depletion of intracellular glutathione, a major endogenous antioxidant. The data suggest that Jeju native medicinal plants could potentially be used as therapeutic agents for treating or preventing neurodegenerative diseases in which oxidative stress is implicated.
