Bioactive microbial metabolites from glycyrrhetinic acid

被引：33
|
作者：
Maatooq, Galal T. [1 ]
Marzouk, Amani M. [1 ]
Gray, Alexander I. [2 ]
Rosazza, John P. [3 ,4 ]
机构：
[1] Mansoura Univ, Fac Pharm, Dept Pharmacognosy, Mansoura 35516, Egypt
[2] Univ Strathclyde, Dept Pharmaceut Sci, Strathclyde Inst Biomed Sci, Glasgow G4 0NR, Lanark, Scotland
[3] Univ Iowa, Coll Pharm, Div Med & Nat Prod Chem, Iowa City, IA 52242 USA
[4] Univ Iowa, Ctr Biocatalysis & Bioproc, Iowa City, IA 52242 USA
来源：
PHYTOCHEMISTRY | 2010年 / 71卷 / 2-3期
关键词：
18 beta-Glycyrrhetinic acid; Microbial transformation; Hepatoprotection; Lipid peroxidation; Nitric oxide; PAUCIMOBILIS STRAIN G5; NITRIC-OXIDE SYNTHASE; CHRONIC HEPATITIS-C; 18-BETA-GLYCYRRHETINIC ACID; LIPID-PEROXIDATION; TRANSFORMATION; GLYCYRRHIZIN; ANTITUMOR; LIVER; TRITERPENOIDS;
D O I：
10.1016/j.phytochem.2009.09.014
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Biotransformation of 18 beta-glycyrrhetinic acid, using Absidia pseudocylinderospora ATCC 24169, Gliocladium viride ATCC 10097 and Cunninghamella echinulata ATCC 8688a afforded seven metabolites, which were identified by different spectroscopic techniques (H-1, C-13 NMR, DEPT, H-1-H-1 COSY, HMBC and HMQC). Three of these metabolites, viz. 15 alpha-hydroxy-18 alpha-glycyrrhetinic acid, 13 beta-hydroxy-7 alpha,27-oxy-12-dihydro-18 beta-glycyrrhetinic acid and 1 alpha-hydroxy-18 beta-glycyrrhetinic acid are new. The C-13 NMR data and full assignment for the known metabolite 7 beta, 15 alpha-dihydroxy-18 beta-glycyrrhetinic acid are described here for the first time. The major metabolites were evaluated for their hepatoprotective activity using different in vitro and in vivo models. These included protection against FeCl3/ascorbic acid-induced lipid peroxidation of normal mice liver homogenate, induction of nitric oxide (NO) production in rat macrophages and in vivo hepatoprotection against CCl4-induced hepatotoxicity in albino mice. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：262 / 270
页数：9
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