Dual inhibitory effect of Glycyrrhiza glabra (GutGard™) on COX and LOX products

被引:84
作者
Chandrasekaran, C. V. [1 ]
Deepak, H. B. [1 ]
Thiyagarajan, P. [1 ]
Kathiresan, S. [1 ]
Sangli, Gopal Krishna [1 ]
Deepak, M. [1 ]
Agarwal, Amit [1 ]
机构
[1] Nat Remedies Pvt Ltd, R&D Ctr, Bangalore, Karnataka, India
关键词
Glycyrrhiza glabra; Phytoconstituents; (glabridin; isoliquiritigenin; glycyrrhizin); Inflammation; COX products (PGE(2); TXB(2)); LOX product (LTB(4)); ANTIOXIDANT ACTIVITY; ACID-DERIVATIVES; EXPRESSION; LEUKOTRIENES; INFLAMMATION; MACROPHAGES; ROOTS;
D O I
10.1016/j.phymed.2010.08.001
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Glycyrrhiza glabra and its phytoconstituents have been known to possess widespread pharmacological properties as an anti-inflammatory, anti-viral, antitumour and hepatoprotective drug. In this study, we examined the inhibitory potential of extract of G. glabra (GutGard (TM)) root and its phytoconstituents (glabridin, glycyrrhizin, and isoliquiritigenin) on both cyclooxygenase (COX) and lipoxygenase (LOX) products in order to understand the mechanism of its anti-inflammatory action. Inhibitory effect of GutGard (TM) and its phytoconstituents on lipopolysaccharide (LPS) induced prostaglandin E(2) (PGE(2)), calcimycin (A23187) induced thromboxane (TXB(2)), and leukotriene (LTB(4)) release was studied using murine macrophages (J774A.1) and human neutrophil (HL-60) cells. Results revealed that, G. glabra and glabridin significantly inhibited PGE(2), TXB(2) (COX) and LTB(4) (LOX), while, isoliquiritigenin exerted inhibitory effect only against COX products but failed to suppress LOX product. However, glycyrrhizin at the tested concentrations failed to exhibit inhibitory effect on both COX and LOX products. Here, we report for the first time that G. glabra (almost devoid of glycyrrhizin) exhibits anti-inflammatory property likely through the inhibition of PGE(2). TXB(2) and LTB(4) in mammalian cell assay system, which could be influenced in part by glabridin and isoliquiritigenin. (C) 2010 Elsevier GmbH. All rights reserved.
引用
收藏
页码:278 / 284
页数:7
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