Absence of hypersensitivity to the negative chronotropic effect of acetylcholine in the atria of mice acutely infected with Trypanosoma cruzi, cl strain.

José Guilherme P. Pires; Fausto E. Lima Pereira

DOI: 10.1590/S0037-86821991000400010

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REFERENCES

1. Alcântara FG. Sistema neuro-vegetativo do coração na moléstia de Chagas experimental. Revista Goiana de Medicina 7:111-126, 1961.         [ Links ]

2. Andrade SG, Andrade ZA. Patologia da doença de Chagas experimental de longa duração. Revista do Instituto de Medicina Tropical de São Paulo 10:180- 187, 1968.         [ Links ]

3. Andrade ZA, Andrade SG. Patologia. In: Brener Z, Andrade ZA(eds) Trypanosoma cruzi e Doença de Chagas. Guanabara Koogan, Rio de Janeiro p. 199-248, 1979.         [ Links ]

4. Chapadeiro E, FlorênciaRFC, Afonso PC, Beraldo PSS, Jesus PC, Junqueira Jr LS. Neuronal counting and parasympathetic dysfunction in the hearts of chronically Trypanosoma cruzi infected rats. Revista do Instituto de Medicina Tropical de São Paulo 33:337-341, 1991.         [ Links ]

5. Koeberle F. Chagas heart disease. Pathology Cardiology 52:82-90, 1968.         [ Links ]

6. Laguens RP, Cabeza-Meckert P, Basombrio MA, Chambó PM, Cossio PM, Arana RM, Gelpi R. lnfección crónica del ratón con Trypanosoma cruzi– Modelo experimental de enfermedad de Chagas. Medicina 40(Suppl l):33-39, 1980.         [ Links ]

7. Machado ABM, Machado CRS, Gomez MV. Trypanosoma cruzi. acetylcholine content and cholinergic innervation of the heart in rats. Experimental Parasitology 47:107-115, 1979.         [ Links ]

8. Machado CRS, Gomez MV, Machado ABM. Changes in choline acetyltransferase activity of rat tissues during Chagas’disease. Brazilian Journal of Medical and Biological Research 20:697-702, 1987.         [ Links ]

9. Oliveira JSM. A concentração de noradrenalina no miocárdio de ratos sob diversas condições experimentais, com destaque para a infecção pelo T. cruzi. Doctoral Thesis. Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo, Ribeirão Preto, 1977.         [ Links ]

10. Oliveira JSM. A natural human model for intrinsic heart nervous system denervation: Chagas cardiopathy. American Heart Journal 110:1092- 1098, 1983.         [ Links ]

11. Pereira FEL, Pires JGP. Chronotropic responses to acetylcho line in atria of mice chronically infected with Y and CL strains of Trypanosoma cruzi. Brazilian Journal of Medical and Biological Research 21:1019-1021, 1988.         [ Links ]

12. TafuriWL. Pathogenesis of lesions of the autonomic nervous system of the mouse in experimental acute Chagas’disease. American Journal of Tropical Medicine and Hygiene 19:405-417, 1970.         [ Links ]

 

 

 Adress to correspondence:
Prof. José Guilherme Pinheiro Pires
Dept^o de Ciências Fisiológicas/CB/UFES.
Caixa Postal 780
29001
Vitória, ES, Brasil.

 

 

Recebido para publicação em 20/06/91.

 

 

Departments of Physiological Sciences and Pathology, Biomedical Center, Espirito Santo Federal University, Vitória, ES, Brazil. Research partially supported by Fundação Ceciliano Abel de Almeida.