Abstract Title:

Ethyl p-methoxycinnamate isolated from a traditional anti-tuberculosis medicinal herb inhibits drug resistant strains of Mycobacterium tuberculosis in vitro.

Abstract Source:

Fitoterapia. 2011 Apr 1. Epub 2011 Apr 1. PMID: 21459133

Abstract Author(s):

Divya Lakshmanan, Jim Werngren, Leny Jose, K P Suja, Mangalam S Nair, R Luxmi Varma, Sathish Mundayoor, Sven Hoffner, R Ajay Kumar

Article Affiliation:

Department of Molecular Microbiology, Rajiv Gandhi Centre for Biotechnology, Melarannur Road, Thycaud PO, Thiruvananthapuram 695 014, India.


Many plants are used in Ayurveda for the treatment of tuberculosis. Our aim was to examine if these plants possess any specific molecule that inhibits Mycobacterium tuberculosis. One of them, Kaempferia galanga, yielded an anti-TB molecule, ethyl p-methoxycinnamate (EPMC). By resazurin microtitre assay (REMA), EPMC was shown to inhibit M. tuberculosis H37Ra, H37Rv, drug susceptible and multidrug resistant (MDR) clinical isolates (MIC 0.242-0.485mM). No cross resistance was observed to any standard anti-TB drugs in the MDR strains. The compound did not inhibit any prototype bacteria tested. EPMC seems to be a potential anti-TB lead molecule.

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