Differences in the number of hemocytes in the snail host Biomphalaria tenagophila, resistant and susceptible to Schistosoma mansoni infection

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorOliveira, A. L. D.
dc.creatorLevada, P. M.
dc.creatorZanotti-Magalhaes, E. M.
dc.creatorMagalhaes, L. A.
dc.creatorRibeiro-Paes, J. T.
dc.date2014-05-20T13:22:20Z
dc.date2014-05-20T13:22:20Z
dc.date2010-01-01
dc.date.accessioned2017-04-05T19:54:09Z
dc.date.available2017-04-05T19:54:09Z
dc.identifierGenetics and Molecular Research. Ribeirao Preto: Funpec-editora, v. 9, n. 4, p. 2436-2445, 2010.
dc.identifier1676-5680
dc.identifierhttp://hdl.handle.net/11449/6536
dc.identifier10.4238/vol9-4gmr1143
dc.identifierWOS:000285718400020
dc.identifierWOS000285718400020.pdf
dc.identifierhttp://dx.doi.org/10.4238/vol9-4gmr1143
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/855416
dc.descriptionThe relationships between schistosomiasis and its intermediate host, mollusks of the genus Biomphalaria, have been a concern for decades. It is known that the vector mollusk shows different susceptibility against parasite infection, whose occurrence depends on the interaction between the forms of trematode larvae and the host defense cells. These cells are called amebocytes or hemocytes and are responsible for the recognition of foreign bodies and for phagocytosis and cytotoxic reactions. The defense cells mediate the modulation of the resistant and susceptible phenotypes of the mollusk. Two main types of hemocytes are found in the Biomphalaria hemolymph: the granulocytes and the hyalinocytes. We studied the variation in the number (kinetics) of hemocytes for 24 h after exposing the parasite to genetically selected and non-selected strains of Biomphalaria tenagophila, susceptible or not to infection by Schistosoma mansoni. The differences were analyzed referred to the variations in the number of hemocytes in mollusks susceptible or not to infection by S. mansoni. The hemolymph of the selected and non-selected snails was collected, and hemocytes were counted using a Neubauer chamber at six designated periods: 0 h (control, non-exposed individuals), 2 h, 6 h, 12 h, 18 h and, 24 h after parasite exposure. Samples of hemolymph of five selected mollusks and five non-selected mollusks were separately used at each counting time. There was a significant variation in the number of hemocytes between the strains, which indicates that defense cells have different behaviors in resistant and susceptible mollusks.
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageeng
dc.publisherFunpec-editora
dc.relationGenetics and Molecular Research
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBiomphalaria tenagophila
dc.subjectSchistosoma mansoni
dc.subjectHemocyte behavior
dc.subjectSchistosomiasis
dc.subjectBiological control
dc.titleDifferences in the number of hemocytes in the snail host Biomphalaria tenagophila, resistant and susceptible to Schistosoma mansoni infection
dc.typeOtro


Este ítem pertenece a la siguiente institución