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Title: Bioactive dammarane triterpenes from the mangrove Plant Bruguiera gymnorrhiza
Authors: Sudarat Homhual
Nuntavan Bunyapraphatsara
Tamara Kondratyuk
Angkana Herunsalee
Wongsatit Chaukul
John M. Pezzuto
Harry H S Fong
Hong Jie Zhang
Mahidol University
Purdue University
Thailand Ministry of Public Health
University of Illinois at Chicago
Keywords: Agricultural and Biological Sciences;Chemistry;Pharmacology, Toxicology and Pharmaceutics
Issue Date: 1-Mar-2006
Citation: Journal of Natural Products. Vol.69, No.3 (2006), 421-424
Abstract: Three new dammarane triterpenes, bruguierins A-C (1-3), were isolated from a petroleum ether extract of the flowers of Bruguiera gymnorrhiza. Their structures were determined on the basis of physical and spectroscopic data interpretation. With stably transfected HepG2 cells, the three isolates activated antioxidant response element (ARE luciferase activation) with EC50 values of 7.8, 9.4, and 15.7 μM, respectively. Bruguierin A (1) also inhibited phorbol ester-induced NFκB (nuclear factor-κB) luciferase activation with an IC50 value of 1.4 μM and selectively inhibited cyclooxygenase-2 (COX-2) activity with an IC50 value of 0.37 μM. Compounds 2 and 3 were not active in these bioassays. © 2006 American Chemical Society and American Society of Pharmacognosy.
ISSN: 01633864
Appears in Collections:Scopus 2006-2010

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