Triterpenic Acids and Flavonoids from Satureja parvifolia: Evaluation of their Antiprotozoal Activity

Bioassay-guided fractionation of a Satureja parvifolia MeOH extract led to the isolation of eriodictyol, luteolin and ursolic and oleanolic acids as its active components against Plasmodium falciparum K1. This is the first time these compounds are reported as constituents of S. parvifolia. Ursolic acid showed an IC50 of 4.9,Mg/ml, luteolin 6.4,μg/ml, oleanolic acid 9.3,μg/ml and eriodictyol 17.2,μg/ml. Antiplasmodial activity of eriodictyol and luteolin is reported here for the first time. Besides, the four compounds showed activity against P falciparum 3D7 strain and Trypanosoma brucei rhodesiense. Eriodictyol showed moderate activity on all the parasites but was the most selective compound as a result of its rather low cytotoxicity (IC50 174.2,μg/ml) on the mammalian KB cell line.Facultad de Ciencias Exacta

Triterpenic Acids and Flavonoids from Satureja parvifolia: Evaluation of their Antiprotozoal Activity

Bioassay-guided fractionation of a Satureja parvifolia MeOH extract led to the isolation of eriodictyol, luteolin and ursolic and oleanolic acids as its active components against Plasmodium falciparum K1. This is the first time these compounds are reported as constituents of S. parvifolia. Ursolic acid showed an IC50 of 4.9,Mg/ml, luteolin 6.4,μg/ml, oleanolic acid 9.3,μg/ml and eriodictyol 17.2,μg/ml. Antiplasmodial activity of eriodictyol and luteolin is reported here for the first time. Besides, the four compounds showed activity against P falciparum 3D7 strain and Trypanosoma brucei rhodesiense. Eriodictyol showed moderate activity on all the parasites but was the most selective compound as a result of its rather low cytotoxicity (IC50 174.2,μg/ml) on the mammalian KB cell line.Facultad de Ciencias Exacta

Triterpenic Acids and Flavonoids from Satureja parvifolia: Evaluation of their Antiprotozoal Activity

Bioassay-guided fractionation of a Satureja parvifolia MeOH extract led to the isolation of eriodictyol, luteolin and ursolic and oleanolic acids as its active components against Plasmodium falciparum K1. This is the first time these compounds are reported as constituents of S. parvifolia. Ursolic acid showed an IC50 of 4.9,Mg/ml, luteolin 6.4,μg/ml, oleanolic acid 9.3,μg/ml and eriodictyol 17.2,μg/ml. Antiplasmodial activity of eriodictyol and luteolin is reported here for the first time. Besides, the four compounds showed activity against P falciparum 3D7 strain and Trypanosoma brucei rhodesiense. Eriodictyol showed moderate activity on all the parasites but was the most selective compound as a result of its rather low cytotoxicity (IC50 174.2,μg/ml) on the mammalian KB cell line.Facultad de Ciencias Exacta

Studies on the antiprotozoal activity of some plant species

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Trypanocidal properties of Terminalia ivorensis A. Chev. (Combretaceae)

Human African Trypanosomiasis (sleeping sickness) cause considerable mortality and morbidity throughout the world with Trypansoma brucei, T. gambiense and T. brucei rhodesiense as the major causative agents. The Terminalia ivorensis gradient extracts were tested against T. brucei rhodesiense parasites and the E.D50 values of 11.11 and 12.32 μg/mL were obtained for the ethyl acetate and ethanolic gradient extracts respectively. The column fractions of the ethyl acetate fraction gave E.D50 value between 1.98 and 5.46 μg/mL for the very active fractions indicating prospect for the development of potential trypanocidal agent from the plant. Keywords: Terminalis ivorensis, Trypanosoma brucei rhodesiensis, trypanocidal African Journal of Traditional, Complementary and Alternative Medicines Vol. 3(2) 2006: 51-5

TRYPANOCIDAL PROPERTIES OF TERMINALIA IVORENSIS A. Chev. (COMBRETACEAE)

Human African Trypanosomiasis (sleeping sickness) cause considerable mortality and morbidity throughout the world with Trypansoma brucei, T. gambiense and T. brucei rhodesiense as the major causative agents. The Terminalia ivorensis gradient extracts were tested against T. brucei rhodesiense parasites and the E.D50 values of 11.11 and 12.32 µg/mL were obtained for the ethyl acetate and ethanolic gradient extracts respectively. The column fractions of the ethyl acetate fraction gave E.D50 value between 1.98 and 5.46 µg/mL for the very active fractions indicating prospect for the development of potential trypanocidal agent from the plant

Triterpenic acids and flavonoids from Satureja parvifolia. Evaluation of their antiprotozoal activity

Bioassay-guided fractionation of a Satureja parvifolia MeOH extract led to the isolation of eriodictyol, luteolin and ursolic and oleanolic acids as its active components against Plasmodium falciparum K1. This is the first time these compounds are reported as constituents of S. parvifolia. Ursolic acid showed an IC 50 of 4.9 µg/ml, luteolin 6.4 µg/ml, oleanolic acid 9.3 µg/ml and eriodictyol 17.2 µg/ml. Antiplasmodial activity of eriodictyol and luteolin is reported here for the first time. Besides, the four compounds showed activity against P. falciparum 3D7 strain and Trypanosoma brucei rhodesiense. Eriodictyol showed moderate activity on all the parasites but was the most selective compound as a result of its rather low cytotoxicity (IC 50 174.2 µg/ml) on the mammalian KB cell line