Open AccessAspectos imunológicos e parasitológicos em Biomphalaria tenagophila infectadas por Schistosoma mansoni e outros Digenea
Author(s) -
Doralice de Souza Luro Balan,
Luiz Augusto Magalhães,
Aquiles Eugênico Piedrabuena
Publication year - 1993
Publication title -
revista de saúde pública/revista de saúde pública
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.857
H-Index - 77
eISSN - 1518-8787
pISSN - 0034-8910
DOI - 10.1590/s0034-89101993000600004
Subject(s) - hemolymph , biology , digenea , schistosoma mansoni , microbiology and biotechnology , trematoda , superinfection , virology , helminths , immunology , virus , schistosomiasis , ecology
The behavior of Biomphalaria tenagophila amoebocytes was studied in infections produced by Schistosoma mansoni and other Digenea. The resistance to superinfection was also verified in mixed infections. Data on amoebocyte phagocytic activity, on the number of amoebocytes in hemolymph, and on amoebocyte tissue reactions were obtained and electrophoretic and immunodiffusion examinations of the hemolymph were carried out. It was concluded that the snails infected with Digenea show resistance to superinfection with S. mansoni. Apparently sporocysts are not destroyed by the action of amoebocytes. An increase in amoebocyte phagocytic activity was discovered in infected snails. Immunoelectrophoresis shows quantitative and qualitative differences in the hemolymph of the infected snails.