BMC research notes · 2019
Combinations of Alchornea cordifolia, Cassytha filiformis and Pterocarpus santalinoides in diarrhoegenic bacterial infections.
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Oli Angus Nnamdi, Obaji Monday, Enweani Ifeoma Bessie
Аннотация
OBJECTIVES: This study examines the rationale, if any, behind combining the extracts from the fruits of Alchornea cordifolia and Pterocarpus santalinoides and aerial parts of Cassytha filiformis in the traditional treatment of diarrhoegenic bacterial infections.
RESULTS: Four diarrhoegenic bacterial isolates: Salmonella typhi, Shigellae dysenteriae, Escherichia coli and Staphylococcus aureus were used and their antibiotic susceptibility screening showed that they were multi-antibiotic resistant. The extracts exhibited activity against all the test isolates with minimum inhibitory concentration values ranging from 3.125 to 12.5 mg/mL. From the checkerboard assay, the fractional inhibitory concentration indices showed that C. filiformis has antagonistic and indifference activities in combination with either P. santalinoides or A. cordifolia. This showed that the combination of extracts from the fruits of A. cordifolia and P. santalinoides and aerial parts of C. filiformis is counterproductive and invalidates any claim for positive results in the management of diarrhoegenic bacterial infections.
RESULTS: Four diarrhoegenic bacterial isolates: Salmonella typhi, Shigellae dysenteriae, Escherichia coli and Staphylococcus aureus were used and their antibiotic susceptibility screening showed that they were multi-antibiotic resistant. The extracts exhibited activity against all the test isolates with minimum inhibitory concentration values ranging from 3.125 to 12.5 mg/mL. From the checkerboard assay, the fractional inhibitory concentration indices showed that C. filiformis has antagonistic and indifference activities in combination with either P. santalinoides or A. cordifolia. This showed that the combination of extracts from the fruits of A. cordifolia and P. santalinoides and aerial parts of C. filiformis is counterproductive and invalidates any claim for positive results in the management of diarrhoegenic bacterial infections.