Imidazolium salts as an alternative for anti-Leishmania drugs: Oxidative and immunomodulatory activities.

In this study we explored the previously established leishmanicidal activity of a complementary set of 24 imidazolium salts (IS), 1-hexadecylimidazole (CIm) and 1-hexadecylpyridinium chloride (CPyrCl) against and . Promastigotes of and were incubated with 0.1 to 100 μM of the compounds and eight of them demonstrated leishmanicidal activity after 48 h - CMImMeS (IC = 11.

Anti-Trypanosoma activity of bioactive metabolites from Photorhabdus luminescens and Xenorhabdus nematophila.

Only two drugs are currently available for the treatment of Chagas disease and their effectiveness are unsatisfactory. Photorhabdus luminescens and Xenorhabdus nematophila, two enteric bacteria highly pathogenic to a broad range of insects, have been studied as potential source for bioactive metabolites against protozoa causing neglected tropical diseases. Therefore, we tested the in vitro anti-Trypanosoma cruzi activity of secreted metabolites from these bacteria.

Leishmanicidal and antichemotactic activities of icetexanes from Salvia uliginosa Benth.

Background: Several species of Salvia are used as medicinal plants around the world. Biological activities of isolated compounds have been described, being diterpenes frequently responsible for the effects.

Purpose: Isolation of diterpenes from Salvia uliginosa Benth.