Document Detail


Comparison of the antioxidant activity amongst Gingko biloba extract and its main components.
MedLine Citation:
PMID:  19771849     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To compare the antioxidant activity amongst the extract of Ginkgo biloba (EGb) and its main components, flavonoids and terpenoids. METHODS: The induction of EGb, flavonoids and terpenoids on a typical antioxidant enzyme, glutamate cysteine ligase catalytic subunit (GCLC), in cell lines was detected by Western-blot. The effects of EGb, flavonoids and terpenoids on superoxide anion radical (O2*(-)), hydroxyl radical (OH*), rat erythrocyte hemolysis and lipid peroxidation of rat liver homogenate were determined by respective activity methods. RESULTS: EGb and flavonoids but not terpenoids were demonstrated significantly to induce the antioxidant enzyme (GCLC), directly scavenge O2*(-), OH* and inhibit rat erythrocyte hemolysis and lipid peroxidation of rat liver homogenate. Compared these antioxidant activities between EGb and flavonoids, the activities of flavonoids were weaker than those of EGb, which contains similar dose of flavonoids. CONCLUSION: EGb has stronger antioxidant activities than flavonoids, but terpenoids did not show antioxidant activity in this research.
Authors:
Xiao-Ping Liu; Jia-Jie Luan; Christopher E P Goldring
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials     Volume:  32     ISSN:  1001-4454     ISO Abbreviation:  Zhong Yao Cai     Publication Date:  2009 May 
Date Detail:
Created Date:  2009-09-23     Completed Date:  2009-12-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9426370     Medline TA:  Zhong Yao Cai     Country:  China    
Other Details:
Languages:  eng     Pagination:  736-40     Citation Subset:  IM    
Affiliation:
Institute of Pharmacy and Therapeutics,Wannan Medical College, Wuhu 241001, China. liuxiaoping@wnmc.edu.cn
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MeSH Terms
Descriptor/Qualifier:
Animals
Antioxidants / isolation & purification,  pharmacology*
Blotting, Western
Cells, Cultured
Flavonoids / pharmacology
Free Radical Scavengers / pharmacology
Free Radicals / metabolism*
Ginkgo biloba / chemistry*
Glutamate-Cysteine Ligase / metabolism
Hemolysis / drug effects
Lipid Peroxidation / drug effects
Liver / drug effects*,  metabolism
Plant Extracts / chemistry,  isolation & purification,  pharmacology*
Plant Leaves / chemistry
Rats
Terpenes / pharmacology
Chemical
Reg. No./Substance:
0/Antioxidants; 0/Flavonoids; 0/Free Radical Scavengers; 0/Free Radicals; 0/Plant Extracts; 0/Terpenes; EC 6.3.2.2/Glutamate-Cysteine Ligase

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