Influence of Echinostoma paraensei (Lie and Basch, 1967) infection on the calcium content in Biomphalaria glabrata (Say, 1818) |
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| Authors: | Tunholi Victor Menezes Lustrino Danilo Tunholi-Alves Vinícius Menezes Garcia Juberlan Silva Mello-Silva Clélia Christina Corrêa Maldonado Arnaldo Rodrigues Maria de Lurdes de Azevedo Pinheiro Jairo |
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| Institution: | aCurso de Pós-Graduação em Ciências Veterinárias, Departamento de Parasitologia Animal, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Km7, BR 465, Antiga Estrada Rio-São Paulo, 23890-000 Seropédica, RJ, Brazil;bDepartamento de Ciências Fisiológicas, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, Brazil;cLaboratório de Esquistossomose Experimental, Instituto Oswaldo Cruz, Fiocruz, Av. Brazil, 4365 Manguinhos, 21040-900 Rio de Janeiro, RJ, Brazil;dLaboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Instituto Oswaldo Cruz, Fiocruz, RJ, Brazil;eDepartamento de Parasitologia Animal, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, RJ, Brazil |
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| Abstract: | The calcium content in the hemolymph and shell of Biomphalaria glabrata (Say, 1818) was determined after exposure to different parasite burdens (5 and 50 miracidia) of Echinostoma paraensei (Lie and Basch, 1967). The snails were dissected 1, 2, 3, and 4 weeks after infection to collect the hemolymph and shell. An increase in calcemia was observed in snails infected with both miracidial doses. A significant decrease in the calcium ions in the shell was observed, coinciding with the calcemia peak in the hemolymph. This indicates greater mobilization of calcium between the shell and hemolymph to regulate the calcium content in the body when the snail is exposed to stress conditions, as has also been observed in some other infected snail species. The results obtained indicate that in this model, the calcium metabolism depends on the miracidial dose used. |
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| Keywords: | Inorganic metabolism Snail Host&ndash parasite relationship Trematoda |
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