Clomipramine and benznidazole association for the treatment of acute experimental Trypanosoma cruzi infection |
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Authors: | Mariana Strauss M. Silvina Lo Presti Paula Carolina Bazán Alejandra Baez Romina Fauro Blanca Esteves Olga Sanchez Negrete David Cremonezzi Patricia A. Paglini-Oliva H. Walter Rivarola |
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Affiliation: | 1. Cátedra de Física Biomédica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Santa Rosa 1085, CP 5000, Córdoba, Argentina;2. Instituto de Investigaciones en Ciencias de la Salud (INICSA), Unidad Ejecutora, CONICET/UNC, Argentina;3. Cátedra de Metodología de la Investigación Científica, Escuela de Kinesiología y Fisioterapia, Facultad de Ciencias Médicas Universidad Nacional de Córdoba, Argentina;4. Cátedra de Química Biológica, Facultad de Ciencias Exactas, Universidad Nacional de Salta, Salta, Argentina;5. Cátedra de Patología Humana, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Argentina;6. Cátedra de Física Biomédica, Escuela de Medicina, Universidad Nacional de La Rioja, Argentina |
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Abstract: | Alternative strategies are being designed to identify candidates among drugs already available on the market that could be used in combination to improve the efficacy of Chagas disease treatment. This work evaluates the effect of the association of clomipramine (CLO) with benznidazole (BZN) for the treatment of experimental Chagas disease in the acute stage, in Swiss albino mice infected with Trypanosoma cruzi Tulahuen strain. Infected mice were treated with CLO 5 mg/kg/day and BZN 50 and 100 mg/kg/day, each separately or together. Efficacy of the treatment was evaluated through parasitemia, survival, electrocardiography, histopathological studies, serological and PCR assays at 90 days post-infection (dpi). All treatments significantly (P < 0.05) reduced mortality and decreased parasitemia. Histopathological analysis of liver and kidneys of mice treated with CLO and the drug combination showed less injury than mice treated only with BZN. The lower dose of BZN (50 mg/kg/day) combined with CLO showed the same efficacy as the habitual dose of BZN (100 mg/kg/day) combined with CLO. The therapeutic results from the combination of BZN with CLO presented lesser side effects than the treatment with BZN. |
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