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Rev Soc Bras Med Trop. 2008 Mar-Apr;41(2):173-8.

[Distribution of eosinophils at different stages of hepatic granuloma evolution in mice infected with Schistosoma mansoni].

[Article in Portuguese]

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  • 1Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco, Recife, PE.

Abstract

In the present study, the distribution of eosinophils at different stages of the formation of hepatic granuloma in mice infected with Schistosoma mansoni was evaluated. From the results obtained, we suggest a new classification for the evolution of hepatic granuloma in mice, constructed from the phases described by other authors. In each phase, there is a different pattern of eosinophil distribution. In the exudative-necrotic phase, the eosinophils are concentrated in the periphery and center of the granuloma, and are scarce in the necrotic area; in the productive phase, the eosinophils are dispersed throughout the granuloma; and in the cure due to fibrosis phase, the eosinophils are concentrated in the periphery and center of the granuloma. Eosinophils were found in direct contact with the eggs at all stages of evolution of the granuloma. It was concluded that the dynamics of eosinophils have an important role in forming the granulomatous reaction of the host and in resolving the inflammatory process caused by the parasite egg, as well as adding new data regarding hepatic granuloma classification.

PMID:
18545839
[PubMed - indexed for MEDLINE]
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