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DOI: 10.1055/s-2004-832615
© Georg Thieme Verlag KG Stuttgart · New York
HPLC-Based Activity Profiling of Salvia miltiorrhiza for MAO A and iNOS Inhibitory Activities
Presented at the 50th Annual Meeting of the Society for Medicinal Plant Research, Barcelona, 2002Publication History
Received: May 25, 2004
Accepted: August 9, 2004
Publication Date:
18 October 2004 (online)
![](https://www.thieme-connect.de/media/plantamedica/200410/lookinside/thumbnails/10.1055-s-2004-832615-1.jpg)
Abstract
In the course of a screening of plant extracts for potential CNS and anti-inflammatory activities, a dichloromethane extract of Salvia miltiorrhiza showed a pronounced inhibitory effect on recombinant monoamine oxidase A (MAO A) and on inducible NO synthase (iNOS) induction in Raw 267.4 cells. With the aid of HPLC-based profiling techniques, activities could be linked, to a significant extent, to peaks of tanshinone-type diterpenoids, four of which were subsequently isolated. The IC50 of the most active compound, 15,16-dihydrotanshinone I, on human recombinant MAO A was at 23 μM, and 2.4 μM on lipopolysaccharide-mediated iNOS induction in Raw 267.4 cells.
Key words
Salvia miltiorrhiza - Lamiaceae - diterpenoids - tanshinones - HPLC-DAD-MS - MAO A inhibition - inhibition of iNOS induction - Raw 267.4 cells
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Prof. Dr. Matthias Hamburger
Institute of Pharmaceutical Biology
Department of Pharmaceutical Sciences
University of Basel
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4056 Basel
Switzerland
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