Potent antibacterial activity of halogenated compounds against antibiotic-resistant bacteria

Charles Santhanaraju Vairappan, and T., Kawamoto and H., Miwa and M., Suzuki (2004) Potent antibacterial activity of halogenated compounds against antibiotic-resistant bacteria. Planta Medica, 70 (11). pp. 1087-1090. ISSN 0032-0943

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Official URL: http://dx.doi.org/10.1055/s-2004-832653

Abstract

Common Gram-positive clinical pathogens are showing an increasing trend for resistance to conventional antimicrobial agents. New drugs with potent antibacterial activities are urgently needed to remediate this problem. Halogenated compounds isolated from several species of the red algae genus Laurencia were examined for their antibacterial activity against 22 strains of human pathogenic bacteria, 7 strains of which were antibiotic-resistant bacteria. Four phenolic sesquiterpenes and a polybrominated indole showed wide spectra of antibacterial activity against Gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA), penicillin-resistant Streptococcus pneumoniae, and vancomycin-resistant Enterococcus faecalis and E.faecium (VRE). In addition, laurinterol and allolaurinterol displayed potent bactericidal activity against three strains of MRSA at 3.13 mug mL(-1), and three strains of vancomycin-susceptible Enterococcus, at 3.13 mug mL(-1) and 6.25 mug mL(-1), respectively.

Item Type:Article
Uncontrolled Keywords:Alga laurencia obtusa, Red algae, Metabolites, Sesquiterpenes, Rhodomelaceae, Constituents, Species
Subjects:?? QR75-99.5 ??
Divisions:SCHOOL > Borneo Marine Research Institute
ID Code:956
Deposited By:IR Admin
Deposited On:17 Oct 2011 18:03
Last Modified:23 Feb 2015 10:37

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