Abstract
Aqueous and methanol extracts of Urtica urens, Capparis tomentosa, Dicoma anomala, Leonotis leonorus, Xysmalobium undulatum, Helichrysum foetidum, Pterocarpus angolensis, Terminalia sericea and Gunnera perpensa, plants documented as being used for topical wound healing in the literature, were tested for antibacterial activity against Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli and Pseudomonas aeruginosa. Methanol and water extracts of two of these plants, Terminalia sericea and Gunnera perpensa, were more active compared to the other extracts against Streptococcus pyogenes and Staphylococcus aureus. The effects of the latter plants on fibroblast growth as well as oxidant production by N-formyl-methionyl-leucyl-phenylalanine were also studied. The water and methanol extracts of Terminalia sericea and Gunnera perpensa significantly decreased luciginin enhanced chemiluminescence at concentrations of 100 μg/ml and higher. However, the extracts had no effect on the growth of primary human fibroblasts.
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