Microbial, phytochemical, toxicity analyses and antibacterial activity against multidrug resistant bacteria of some traditional remedies sold in Buea Southwest Cameroon

Autor: Moses Njutain Ngemenya, Ghogo Gail Rinda Djeukem, Kennedy Dohjinga Nyongbela, Petuel Ndip Ndip Bate, Smith Borakaeyabe Babiaka, Elvis Monya, Rudolf Khundou Kanso
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: BMC Complementary and Alternative Medicine, Vol 19, Iss 1, Pp 1-11 (2019)
Druh dokumentu: article
ISSN: 1472-6882
DOI: 10.1186/s12906-019-2563-z
Popis: Abstract Background Traditional medicine remedies are commonly used for treatment of diverse ailments including bacterial infections. The activity against resistant bacteria and safety of some remedies sold as anti-infective treatments in market places in Buea, Southwest Cameroon were investigated as potential alternative treatment to counter increasing antibiotic resistance. Methods Ten remedies were purchased, their components documented and microbial load estimated. Methanol extracts of the remedies were tested for antibacterial activity by disc diffusion and microdilution. Cytotoxicity was evaluated on monkey kidney epithelial cells (LLC-MK2) while acute oral toxicity was done in BALB/c mice for the bactericidal extract. Extracts were further analysed using phytochemical tests. Results All the remedies had microbial loads above the acceptable limit of 105 CFU/g. The highest activity was produced by extracts of four remedies (TP 1, 2, 4, 6a, 6b) against all clinical isolates among which three were active against four control strains. Zones of inhibition ranged from 8 to 27 mm. Two of the four extracts produced zones ≥20 mm against multidrug resistant clinical isolates of Citrobacter freundii and Escherichia coli but were less active compared to Gentamycin positive control (P
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