Central nervous system involvement in experimental trypanosomiasis cruzi

Autor: José Eymard Homem Pittella
Jazyk: angličtina
Rok vydání: 1991
Předmět:
Zdroj: Memorias do Instituto Oswaldo Cruz, Vol 86, Iss 2, Pp 141-145 (1991)
Druh dokumentu: article
ISSN: 0074-0276
1678-8060
DOI: 10.1590/S0074-02761991000200001
Popis: A review of the available literature on central nervous system involvement in experimental trypanosomiasis cruzi is undertaken. From a critical analysis of 26 works on experimental infections with Trypanosoma cruzi (23 on the acute phase, 2 on the chronic phase, and one describing sequentially both phases), all supported by neuropathologic studies, it can be concluded that: 1) central nervous system involvement during the acute phase, in the form of encephalitis in multiple foci, with variable intensity of the parasitism and inflamatory changes, is frequent and well documented; 2) in animals with more severe central nervous system involvement death occurs as a result of the brain lesions or acute chagasic myocarditis, the latter being always present; 3) in animals with more discrete brain involviment death during the acute phase is due to complications not related to the nervous system, among which congestive heart failure second to acute chagasic myocarditis, a condition that is always present, regardless of whether or not the central nervous system is infected; 4) it is possible that in surviving animals that had mild encephalitis the inflammatory changes from the acute phase usually regress as the infection progress to the chronic phase.
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