Background: species have a wide range of biological properties. In Argentina, this genus comprises ten widely distributed species.
Purpose: To evaluate the antiparasitic and anticholinesterase activities and chemical profiles of seven Argentinean species and determine the synergism between the major isolated alkaloid-montanine-and benznidazole in anti- activity.
Methods: The antiparasitic activity was evaluated through antiproliferative and viability assays against epimastigotes. Synergism assays were performed using the Chou-Talalay method. AChE and BuChE inhibitory activities were also assessed. The alkaloid composition was obtained using GC-MS analysis.
Results: All extracts showed strong growth inhibition of epimastigote proliferation. The extracts from , , and stand out for their potent and total growth inhibition, which was comparable to benznidazole. The extract showed strong Acetylcholinesterase (AChE) inhibitory activities, while five species showed moderate Butyrylcholinesterase (BuChE) inhibition. Fifteen alkaloids were identified by means of GC-MS. Regarding the synergism assessment, the highest synergistic effect was obtained from the combination of montanine and benznidazole.
Conclusion: species bulb extracts from Argentina were shown to be a good source of antiparasitic alkaloids and cholinesterase inhibitors. The synergism between montanine and benznidazole emerges as a potential combination for future studies to treat Chagas disease.
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| http://dx.doi.org/10.3390/microorganisms11010144 | DOI Listing |
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