Arylimidamide (AIA) compounds containing two pyridylimidamide terminal groups (bis-AIAs) possess outstanding in vitro antileishmanial activity, and the frontrunner bis-AIA DB766 (2,5-bis[2-(2-isopropoxy)-4-(2-pyridylimino)aminophenyl]furan) is active in visceral leishmaniasis models when given orally. Eighteen compounds containing a single pyridylimidamide terminal group (mono-AIAs) were synthe...

background: the present study aimed to survey antileishmanial activity of methanolic holothuria leucospilota extract against leishmania major promastigotes in vitro. methods: promastigotes were cultured in rpmi 1640 and after reaching the stationary phase, the study was conducted with different concentrations of the extract. afterwards, mtt colorimetric assay for the obtaining of 50% inhibitory...

BACKGROUND In a screen of extracts from plants and fungi to detect antileishmanial activity, we found that the ethyl acetate extract of the fungus Nectria pseudotrichia, isolated from the tree Caesalpinia echinata (Brazilwood), is a promising source of bioactive compounds. OBJECTIVES The aims of this study were to isolate and determine the chemical structures of the compounds responsible for th...