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Characterisation of phenols and antioxidant and hypolipidaemic activities of Lethariella cladonioides.
MedLine Citation:
PMID:  21918996     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: This study aimed to investigate the antioxidant and hypolipidaemic activities of an ethanol extract of Lethariella cladonioides (Nyl.) Krog (EE) and to characterise its chemical constituents. RESULTS: Nine phenols were identified as canarione, thamnolic acid, squamatic acid, vermicularin, norstictic acid, baeomycesis acid, lecanoric acid, barbatinic acid and usnic acid from analysis of EE by using high-performance liquid chromatography with a diode array detector-mass spectrometry. In antioxidant analysis in vitro, the highest scavenging rate of EEs on the 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals, superoxide anion, hydroxyl radicals and hydrogen peroxide was 81.55 ± 1.95%, 81.84 ± 4.00%, 74.28 ± 3.71% and 74.28 ± 3.71%, respectively. Meanwhile, after administration of EE for 6 weeks in high fat/cholesterol diet mice, the most significant reduction in levels of serum triglyceride, serum total cholesterol, serum low density lipoprotein cholesterol and liver malondialdehyde were 24%, 20%, 15% and 35%, respectively. The most significant increase in levels of serum high density lipoprotein cholesterol and liver superoxide dismutase was 35% and 88%, respectively. CONCLUSION: L. cladonioides possesses strong antioxidant and hypolipidaemic activities. Copyright © 2011 Society of Chemical Industry.
Authors:
An-Hua Wei; Dao-Nian Zhou; Jin-Lan Ruan; Ya-Ling Cai; Chao-Mei Xiong; Ming-Xing Li
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-14
Journal Detail:
Title:  Journal of the science of food and agriculture     Volume:  -     ISSN:  1097-0010     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376334     Medline TA:  J Sci Food Agric     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Society of Chemical Industry.
Affiliation:
Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation of Hubei Province, College of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China.
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