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Parasitol Res. 2005 Jun;96(3):184-7. Epub 2005 Apr 21.

Risedronate in the treatment of Murine Chagas' disease.

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  • 1Department of Pathology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA.


Risedronate, a bisphosphonate, was used to treat CD-1 mice infected with the Brazil strain of Trypanosoma cruzi. When given by subcutaneous injection 3 times/week, there was a significant reduction in mortality, however, the myocardial pathology and right ventricular dilation was unchanged in these mice compared to control animals. In C57BL/6 mice infected with the Tulahuen strain, there was no change in mortality in response to risedronate treatment. These data suggest that this class of compounds has activity against T. cruzi in vivo and illustrate the utility of imaging and pathologic studies as adjuncts in the evaluation of therapeutic compounds as treatments for experimental Chagas' disease. In addition, it underscores the need to use different strains of T. cruzi.

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