ANTIBACTERIAL AND BIOCHEMICAL EFFECTS OF ETHANOL LEAF EXTRACT OF SENNA HIRSUTA MILL USING ANIMAL MODEL-MICE

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February – March 2015, vol. 4, no. 4
pages: 292-296
Article type: Microbiology of Microbiology
DOI: 10.15414/jmbfs.2015.4.4.292-296
Abstract: This study was carried out to investigate the in-vitro and in-vivo antibacterial and biochemical activities of 50, 100 and 200mg.mL-1 concentrations of ethanol leaf extract of Senna hirsuta (hairy senna) against seven human pathogenic bacteria species namely: Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus, Enterococcus faecium, Bacillus cereus and Salmonella typhi. The in-vitro bioassay revealed the leaf extracts of valuable antibacterial activity where zones of inhibition ranging from 12.1mm to 39.1mm were observed on the test bacteria species. Among the test bacteria, K. pneumoniae was the most inhibited and S. typhi the least inhibited. On mice infection with the bacteria species for three days, decrease in weight of mice was observed. The in-vivo therapeutic use of the extracts in mice infected with the bacteria pathogens resulted to weight gain of the mice and other physiological changes that indicated health improvement of the mice and was also of hepatoprotective potential. The in-vivo antioxidant assay exhibited satisfactory therapeutic effects where improvement in aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase (ALP) status of mice was observed on comparing results of the positive and negative controls.
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