Behavior in Mus musculus of Schistosoma mansoni from mollusks treated with hydrocortisone.
Twenty mice were exposed to cercariae from mollusks treated with hydrocortisone and another 20 mice received cercariae from non-treated mollusks. The behavior of the parasites from the two groups of mollusks was compared based on the ability of cercariae to penetrate mice, on the total number of worms recovered after eight weeks of infection, on the relationship between the number of penetrating cercariae and the number of recovered worms and on the number of eggs in the feces. Treating the mollusks with hydrocortisone did not alter the ability of cercariae to penetrate mice nor did it affect the total number of worms recovered. The number of female worms, the number of coupled worms and the number of eggs in the feces were greater in mice infected by cercariae from mollusks treated with hydrocortisone.
Serrano
Deborah Regina
DR
Departamento de Parasitologia, Instituto de Biologia, Universidade Estadual de Campinas, SP, Brazil.
Zanotti-Magalhães
Eliana Maria
EM
Magalhães
Luiz Augusto
LA
Carvalho
José Ferreira de
JF
D000818:Animals; D000893:Anti-Inflammatory Agents / Q000494:pharmacology*; D001700:Biomphalaria / Q000187:drug effects / Q000469:parasitology*; D005243:Feces / Q000469:parasitology; D005260:Female; D006790:Host-Parasite Interactions / Q000187:drug effects / Q000502:physiology; D006854:Hydrocortisone / Q000494:pharmacology*; D008297:Male; D051379:Mice; D010270:Parasite Egg Count; D012550:Schistosoma mansoni / Q000187:drug effects* / Q000502:physiology
D000893:Anti-Inflammatory Agents; D006854:Hydrocortisone