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Parasitología latinoamericana

versão On-line ISSN 0717-7712


DIAZ-LIMAY, ENRIQUE; ESCALANTE, HERMES  e  JARA, CÉSAR A.. PARASITEMIA LEVELS AND HISTOPATHOLOGYCAL CHANGES IN Mus musculus BALB/C INFECTED WITH Typanosoma cruzi OBTAINED FROM Panstrongylus chinai OF CHAMAN VALLEY, LA LIBERTAD - PERU. Parasitol. latinoam. [online]. 2004, vol.59, n.3-4, pp.153-158. ISSN 0717-7712.

Parasitemia levels as well as histopathologycal changes in the heart and the brain of mice, Mus musculus, BALB/c experimentally infected by Trypanosoma cruzi isolated of Panstrongyfus chinai from Chaman Valley (La Libertad-Peru) was determined. For this purposes, ten mice specimens was inoculated with 5x104 trypomastigota parasites (0.1 mL of original inoculums) and another one, the witness, was inoculated with saline solution sterile. The parasitemia was evident at fifth day after experimental infection, rising until levels between 2,5x106 and 7,0x10e trypomastigotas/mL before death, that which happened in 100% of experimental mice between 13 to 18 days. On the other hand, the histopathologycal analysis by H/E technique showed edematous areas, vesicular congestion, hipercromasia and amastigota nests in both, heart and encephalon cuts. Moreover, only in encephalon chronic inflammation was detected and only in hearth, lynphocyte-inflamatory infiltred. T. cruzi of P. chinai bug from Chaman Valley showed neurotropic and cardio tropic tendency in M. musculus BALB/c.

Palavras-chave : Trypanosoma cruz; Panstrongylus china; histopathological changes; parasitemia.

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