1. Chemical composition, antiparasitic and cytotoxic activities of aqueous extracts of Ziziphus joazeiro Mart.
Jacqueline ANDRADE ; Ana DA SILVA ; Antônia DOS SANTOS ; Maria FREITAS ; Yedda DE MATOS ; Maria BRAGA ; Camila BEZERRA ; Maria PEREIRA GONÇALO ; Maria VEGA GOMEZ ; Henrique MELO COUTINHO ; Jacqueline ANDRADE ; Míriam ROLÓM ; Cathia CORONEL ; Paulo VASCONCELOS RIBEIRO ; Edy DE BRITO
Asian Pacific Journal of Tropical Biomedicine 2019;9(5):222-226
To compare the in vitro antiparasitic activity of aqueous extracts from Ziziphus joazeiro leaves and stem bark against Trypanosoma cruzi, Leishmania braziliensis, and Leishmania infantum, as well as to evaluate its cytotoxicity in mammalian cells, in addition to identifying the chemical composition of the extracts. Methods: Ziziphus joazeiro leaf and stem bark aqueous extracts were prepared by cold extraction maceration and subjected to ultra-efficient liquid chromatography coupled to a quadrupole/time of flight system. The susceptibility assays used Trypanosoma cruzi CL-B5 strains and promastigote forms of Leishmania braziliensis and Leishmania infantum for antiparasitic activity of the extracts. Moreover, mammalian fibroblasts NCTC clone 929 were used for cytotoxicity analysis. Results: Terpenoid compounds, flavonoids and phenolic acid were identified in extracts. The stem bark aqueous extracts presented more significant results in terms of antiparasitic activity compared with the leaf aqueous extracts, especially against Leishmania braziliensis and Leishmania infantum promastigote forms with an IC
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