Toxoplasma gondii: Fluconazole and itraconazole activity against toxoplasmosis in a murine model

Martins-Duarte, É. S., Lemgruber, L. , de Souza, W. and Vommaro, R. C. (2010) Toxoplasma gondii: Fluconazole and itraconazole activity against toxoplasmosis in a murine model. Experimental Parasitology, 124(4), pp. 466-469. (doi: 10.1016/j.exppara.2009.12.011) (PMID:20045696)

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Toxoplasma gondii is an important opportunistic pathogen affecting immunocompromised patients with AIDS. Toxoplasmic encephalitis is responsible for high morbidity and mortality. In this study, we investigated the activity of the antifungals fluconazole (FLZ) and itraconazole (ITZ) against T. gondii in mice infected with the Me49 strain. As previously reported for ITZ, FLZ also demonstrated a selective effect against T. gondii in vitro; the IC50 values obtained for FLZ were 8.9 μM and 3.1 μM after 24 h and 48 h of treatment, respectively. A 10-day treatment of mice with orally or intraperitoneally administered 20 mg/kg/day FLZ showed a significant survival difference compared to untreated mice. The administration of 20 mg/kg/day ITZ significantly reduced the brain cyst burden compared to untreated mice but did not exert significant protection against death. The results obtained in this work are rather promising as ITZ and FLZ are safe and low-cost drugs available on the market.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Lemgruber Soares, Dr Leandro
Authors: Martins-Duarte, É. S., Lemgruber, L., de Souza, W., and Vommaro, R. C.
College/School:College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation
Journal Name:Experimental Parasitology
ISSN (Online):1090-2449
Published Online:04 January 2010

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