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Revista de la Universidad Industrial de Santander. Salud

versión impresa ISSN 0121-0807

Resumen

NEIRA, Laura F. et al. Cutaneous leishmaniasis by Leishmania Viannia species in BALB/c mice and efficacy of a topical treatment. Rev. Univ. Ind. Santander. Salud [online]. 2019, vol.51, n.1, pp.33-42. ISSN 0121-0807.  http://dx.doi.org/10.18273/revsal.v51n1-2019004.

Introduction:

The efficacy of topical treatments could be affected by the diversity of clinical forms (localized or disseminated cutaneous forms, mucosal forms) of New World-leishmaniasis caused by species of Leishmania from the subgenus Viannia. The aim of this study was to determine the cutaneous leishmaniasis features produced after infection with Leishmania (V.) braziliensis and L. (V.) panamensis in BALB/c mice and to determine the efficacy of one topical treatment.

Materials and methods:

Cutaneous leishmaniasis lesions were followed up after infection determining their lesion-size (mm2) and other macroscopic characteristics every 7 days for 150 days. Histopathological patterns (in lesions and organs) were determined 70, 106 and 150 days post-infection and the efficacy (lesion and parasitological cure) of miltefosine gel applied topical once a day for 20 days was determined.

Results:

An increase of size-lesions was observed in both groups of mice, however, a higher lesion- size and inflammatory response but lower epidermal changes were observed in L. (V.) braziliensis compared with L. (V.) panamensis infected ones. No parasites were observed in organs (nodules, spleen and liver) and no differences were observed in the effectiveness of the used topical treatment.

Conclusion:

The efficacy of the topical treatment used was not affected by the macro and microscopic differences produced after infection by the two Leishmania species evaluated.

Palabras clave : L. (V.) braziliensis; L. (V.) panamensis; BALB/c mice; miltefosine; histopathological patterns; topical treatment; gel.

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