5 výsledky
This study describes the incorporation of a coumarin-rich extract from Pterocaulon balansae into nanoemulsions intended for the local treatment of ocular keratitis caused by Acanthamoeba. The n-hexane dewaxed extract of P. balansae was characterized by HPLC/PDA and UPLC/MS. The presence of four
Plants from the genus Pterocaulon are popularly used as antifungal and wound-healing agents. Such activities have been related to coumarins, which are abundant in those plants. Coumarins are soluble in organic solvents, such as hexane and dichloromethane, and some of them are also soluble in hot
The crude extract and hexane, dichloromethane, and methanol fractions obtained from the aerial parts of Pterocaulon polystachyum (Asteraceae) were assayed against Acanthamoeba castellanii, a free-living ameba that causes acute amebic keratitis. Because of its capacity to form cysts, some strains of
Fractionation of antifungal hexane extracts of the aerial parts of three Pterocaulon spp., Pterocaulon alopecuroides, Pterocaulon balansae and Pterocaulon polystachyum (Asteraceae) from South Brazil traditionally used to treat animal mycoses, afforded the coumarins
Pterocaulon polystachyum DC is a native species to southern Brazil, Paraguay, Uruguay and northeastern Argentina. It is utilized to treat animal problems popularly diagnosed as "mycoses". The antifungal and amebicidal activity of its hexane extract has been previously reported, although there are no