Red Ginseng Extract Attenuates Kainate-Induced Excitotoxicity by Antioxidative Effects
Joint Authors
Han, Jin-Yi
Ahn, Sun-Young
Nam, Sang-Yoon
Hong, Jin Tae
Lee, Mi Kyeong
Oh, Eun-Hye
Oh, Ki-Wan
Source
Evidence-Based Complementary and Alternative Medicine
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-23
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This study investigated the neuroprotective activity of red ginseng extract (RGE, Panax ginseng, C.
A.
Meyer) against kainic acid- (KA-) induced excitotoxicity in vitro and in vivo.
In hippocampal cells, RGE inhibited KA-induced excitotoxicity in a dose-dependent manner as measured by the MTT assay.
To study the possible mechanisms of the RGE-mediated neuroprotective effect against KA-induced cytotoxicity, we examined the levels of intracellular reactive oxygen species (ROS) and [Ca2+]i in cultured hippocampal neurons and found that RGE treatment dose-dependently inhibited intracellular ROS and [Ca2+]i elevation.
Oral administration of RGE (30 and 200 mg/kg) in mice decreased the malondialdehyde (MDA) level induced by KA injection (30 mg/kg, i.p.).
In addition, similar results were obtained after pretreatment with the radical scavengers Trolox and N, N′-dimethylthiourea (DMTU).
Finally, after confirming the protective effect of RGE on hippocampal brain-derived neurotropic factor (BDNF) protein levels, we found that RGE is active compounds mixture in KA-induced hippocampal mossy-fiber function improvement.
Furthermore, RGE eliminated 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals, and the IC50 was approximately 10 mg/ml.
The reductive activity of RGE, as measured by reaction with hydroxyl radical (•OH), was similar to trolox.
The second-order rate constant of RGE for •OH was 3.5–4.5×109 M−1·S−1.
Therefore, these results indicate that RGE possesses radical reduction activity and alleviates KA-induced excitotoxicity by quenching ROS in hippocampal neurons.
American Psychological Association (APA)
Han, Jin-Yi& Ahn, Sun-Young& Oh, Eun-Hye& Nam, Sang-Yoon& Hong, Jin Tae& Oh, Ki-Wan…[et al.]. 2012. Red Ginseng Extract Attenuates Kainate-Induced Excitotoxicity by Antioxidative Effects. Evidence-Based Complementary and Alternative Medicine،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-1028337
Modern Language Association (MLA)
Han, Jin-Yi…[et al.]. Red Ginseng Extract Attenuates Kainate-Induced Excitotoxicity by Antioxidative Effects. Evidence-Based Complementary and Alternative Medicine No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-1028337
American Medical Association (AMA)
Han, Jin-Yi& Ahn, Sun-Young& Oh, Eun-Hye& Nam, Sang-Yoon& Hong, Jin Tae& Oh, Ki-Wan…[et al.]. Red Ginseng Extract Attenuates Kainate-Induced Excitotoxicity by Antioxidative Effects. Evidence-Based Complementary and Alternative Medicine. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-1028337
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1028337