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Investigating the Effect of a Local Herb- P. Amarus (Schum. and Thonn.) on Entero-Pathogenic Staphylococcus Aureus and Escherichia Coli.

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Investigating the Effect of a Local Herb- P. Amarus (Schum. and Thonn.) on Entero-Pathogenic Staphylococcus Aureus and Escherichia Coli.
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International Journal of Tropical Medicine and Public Health Volume 1, Issue 1, 2011 Crosshouse books

Original Research Paper

INVESTIGATING THE EFFECT OF A LOCAL HERB- P. AMARUS (SCHUM. AND THONN.) ON ENTEROPATHOGENIC STAPHYLOCOCCUS AUREUS AND ESCHERICHIA COLI. BY ETTA, Hannah Edim, ELOMA, Nnanke, OKON, Essien Archibong and OFFOR, Ubana BIOLOGICAL SCIENCE DEPARTMENT, CROSS RIVER UNIVERSITY OF TECHNOLOGY , CALABAR, CROSS RIVER STATE, NIGERIA. Abstract Objectives: Entero-pathogenic Staphylococcus aureus (EPSA) and Escherica coli (EPEC) were treated with a methanol extract of Phyllanthus amarus, in vitro, to investigate the possible effects of the herb on these organisms. Zones of Inhibition (ZI) of the extract on EPSA and EPEC cultures and the Minimum Inhibitory Concentrations (MIC) of the methanolic extracts were determined using standard procedures. EPEC showed mean ZI of 17.7 ± 2.56, while the mean ZI for EPSA was 14.79 ± 3.87. Statistical analyses showed positive correlation of 0.56 at P≤0.1 between the plant extract concentrations and EPEC ZI and 0.75 at P ≤0.1 for the EPSA. At the concentrations administered, the extract was active against both EPSA and EPEC isolates. These results present the herb, P. amarus as a possible biotechnological tool in the field of herbal medicine for the control of antibiotic-resistant, entero-pathogenic S. aureus and E. coli infections. Keywords: Entero-pathogenic bacteria, Phyllanthus amarus, Staphylococcus aureus and Escherica coli. Introduction The use of herbs and herbal derivatives in Traditional Medicine Practices (TMP), as a biotechnological tool, has come to stay, not just in Nigeria but in most tropical regions of the world where there are vast, dense, evergreen forests that nature has presented to humanity as a gift of a therapeutic workshop with a wide variety of medicinal plants. With the recent advances in contemporary alternative medicine (CAM) and the emergence of multi resistant strains of microbials, it



References: Daziel, J.M. (1968) The useful Plants of West Tropical Africa. Nigeria National Press Limited Apapa, Lagos. PP. 232-233. Flora Oluwafemi* and Folasade Debiri (2008) Antimicrobial Effect of Phyllanthus amarus and Parquetina nigrescens on Salmonella typhi. African Journal of Biomedical Research. 11: 215 – 219 Kluytmans J. E , Van Belkum A. and Verbrugh H.(1997) Nasal carriage of Staphylococcus aureus: epidemiology, underlying mechanisms, and associated risks. Clin. Microbiol. Rev. 10 (3): 505–20. Liu G. Y, Essex A, Buchanan J. T, Datta V, Hoffman H. M, Bastian J. F, Fierer J and Nizet V (2005). Staphylococcus aureus golden pigment impairs neutrophil killing and promotes virulence through its antioxidant activity. Med 202 (2): 209–15. Lui Ray-Ling, H. & Huang, Y. L.(2001). Genus Phyllanthus for chronic hepatitis B virus infection: A systemic review. Viral Hepatitis, 8 (5): 358– 366. Menichetti F. (2005) Current and emerging serious Gram-positive infections. Clin Microbiol Infec.t 11 Suppl 3: 22–8 Olowosulu, A.K. and Ibrahim, Y.K.E. (2006) Studies on the antimicrobial screening of Aqueous extracts of five plants used in Folk medicine in Nigeria. West African J. boil. Sc., 3(5): 21-26 Perfeito, L., Fernandes, L., Mota, C. and Gordo, I. (2007) Adaptive Mutations in Bacteria: High Rate and Small Effects. Science 317 (5839): 813–815. Prescott, L. M., Harley, J. P. and Klein, D. A. (2005) Microbiology. 6th edn. McGraw-Hill, Boston. pp. 992. Rajeshkumar, N. V. & Kuttan, R. (2001). Phyllanthus amarus extract administration increase the life span of rats with hepatocellular carcinoma. Teratogenesis, Carcinogenesis and Mutagenesis, 22 (4): 284-291 Soforowa A,(1996): Medicinal Plants and Traditional Medicine in Africa. 2nd ed. Spectrum Books Ltd . and Satari Books Ltd.; Ibadan and Uk. Thyagaragan, H. F., Blumberg, B. & Chase, F. (1998). Chanca-piedra’s anti-viral properties. Indian Journal of Experimental Biology, 6 (43): 76-78. Todar, K.(2007) Pathogenic E. coli. Online Textbook of Bacteriology. University of Wisconsin–Madison Department of Bacteriology. Retrieved 2011; Pp.11-30.

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