Kuhnt, M., Pröbstle, A., Rimpler, H., Bauer, R. and Heinrich, M. (1995) Biological and pharmacological activities and further constituents of Hyptis verticillata. Planta Medica, 61 (3). pp. 227-232. 10.1055/s-2006-958061.
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Several extracts of Hyptis verticillata and isolated compounds were evaluated for their anti-inflammatory, antibacterial, antisecretory, and cytotoxic properties. The aerial parts yielded (R)-5-hydroxypyrrolidin-2-one and essential oil with the main components alpha-pinene, beta-pinene, and thymol. Spectroscopic methods (UV, IR, 1H-NMR, 13C-NMR, mass, CD) fully characterized (R)-5-hydroxypyrrolidin-2-one, as it was isolated by a bioassay guided fractionation. The essential oil, (R)-5-hydroxypyrrolidin-2-one, as well as the previously isolated rosmarinic acid and dehydropodophyllotoxine contributed to the antibacterial effects of H. verticillata. Furthermore, rosmarinic acid showed significant capillary stabilizing effects. Sideritoflavone inhibited prostaglandin synthase to a significant extent and had antisecretory effects comparable to those of NPPB. The cytotoxicity of the aqueous extract, as demonstrated using KB and HT 29 cell lines, may be of toxicological relevance in cases of internal application.
|Uncontrolled Keywords:||Hyptis verticillata - Labiatae - (R)-5-hydroxypyrrolidin-2-one - essential oil - antibacterial - anti-inflammatory - antisecretory - cytotoxic - quantification|
|Departments, units and centres:||Department of Pharmaceutical and Biological Chemistry > Centre for Pharmacognosy and Phytotherapy|
|Journal or Publication Title:||Planta Medica|
|Deposited By:||Library Staff|
|Deposited On:||20 Jan 2012 10:22|
|Last Modified:||20 Jan 2012 10:22|
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