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  • Title: Screening of the in vitro amoebicidal activities of Pastinaca armenea (Fisch. & C.A.Mey.) and Inula oculus-christi (L.) on Acanthamoeba castellanii cysts and trophozoites.
    Author: Degerli S, Berk S, Malatyali E, Tepe B.
    Journal: Parasitol Res; 2012 Feb; 110(2):565-70. PubMed ID: 21735149.
    Abstract:
    The aim of this study is to evaluate the in vitro amoebicidal activity of the aqueous extracts of Pastinaca armenea and Inula oculus-christi from Turkey. In the presence of aqueous extracts (ranging from 1.0 to 32.0 mg/ml), numbers of the viable Acanthamoeba castellanii trophozoites and cysts were decreased during the experimental process. Both extracts showed a time- and dose-dependent amoebicidal action on the trophozoites and cysts. Among the extracts tested, I. oculus showed the strongest amoebicidal effect on the trophozoites and cysts. In the presence of 32.00 mg/ml extract solution in the media, no viable trophozoites were determined from the time of 24 h. Moreover, in the presence of 16.00 mg/ml I. oculus-christi extract, no viable trophozoites were detected in 72 h of the experiment. Effectiveness of I. oculus-christi extract was found moderate against the cysts. In the presence of 32.00 mg/ml extract, only 25.3% of the total cysts were killed effectively. In the case of P. armenea, 40.3% and 23.0% of the trophozoites and cysts were killed in the presence of 32.00 mg/ml extract at the end of the experimental process (72 h), respectively.
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