title: Influence of Echinostoma paraensei (Lie and Basch, 1967) infection on the calcium content in Biomphalaria glabrata (Say, 1818).
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.
authors.affiliation: Curso 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.
authors.forename: Victor Menezes
authors.initials: VM
authors.lastname: Tunholi
authors.forename: Danilo
authors.initials: D
authors.lastname: Lustrino
authors.forename: Vinícius Menezes
authors.initials: VM
authors.lastname: Tunholi-Alves
authors.forename: Juberlan Silva
authors.initials: JS
authors.lastname: Garcia
authors.forename: Clélia Christina Corrêa
authors.initials: CC
authors.lastname: Mello-Silva
authors.forename: Arnaldo
authors.initials: A
authors.lastname: Maldonado
authors.forename: Maria de Lurdes de Azevedo
authors.initials: Mde L
authors.lastname: Rodrigues
authors.forename: Jairo
authors.initials: J
authors.lastname: Pinheiro
mesh_terms: D060105:Animal Shells / Q000737:chemistry; D000818:Animals; D001700:Biomphalaria / Q000737:chemistry / Q000469:parasitology*; D002118:Calcium / Q000032:analysis*; D002119:Calcium Carbonate / Q000032:analysis; D004449:Echinostoma / Q000502:physiology*; D006458:Hemolymph / Q000737:chemistry; D006790:Host-Parasite Interactions
chemical_list: D002119:Calcium Carbonate; D002118:Calcium