Bulinus truncatus

About: Bulinus truncatus is a research topic. Over the lifetime, 414 publications have been published within this topic receiving 5640 citations.

Cytokines and Mother Sporocysts in Susceptible and Resistant Bulinus Truncatus Snails Infected with Schistosoma Haematobium

Abstract: The presence of immunoreactive interleukin (IL-2), interferon gamma (IFN-γ) and tumor necrosis factor alpha (TNF-α) in addition to the citation of mother sporscytes in cephalopodal musculature in the susceptible and resistance Bulinus truncatus the specific intermediate host for the trematode Schistosoma haematobium were investigated,. Using ELISA tests, Results indicated that the concentration of IL-2-like activity in the susceptible and resistant snails decreased significantly after infection then persisted at low levels until the 4th week post exposure (WPE) in susceptible snails, while in resistant snails elevated during the second WPE, and returned to initial level at 3 and 4 WPE. Susceptible snails had low detectable levels of TNF-α and INF-γ like-activity after infection. However, the resistant snails had significant low levels of TNF-α and INF-γ like-activity from 3 WPE until the 4th WPE without any sign of normalization. Histological sections in the head- foot region of susceptible and resistance B. truncatus infected with S. haematobium, mother sporocysts exists from 1 to 7(day post exposure) DPE, in the susceptible snail the mother sporocysts were found as single, multiple and mature types. No mother sporocysts were appear in the lip and mantle of the snail on 2, 5, 7 DPE and on 1-3, 6 DPE respectively. In the resistant snails few mother sporocysts were found in the lip, mantle and tentacles. The results showed that schistosome-resistant Bulinus can be an alternative strategy for the control of schistosomiasis.

Studies on larval stages of digenetic trematodes in aquatic molluscs of israel

Abstract: Three cercariae are described from snails collected in the environs of Lake Tiberias: a virgulate cercaria of the Paravirgulae sub-group, collected from Bithynia sidoniensis and B. saulcyi; a gymnocephalous cercaria of the Parapleurolophocerca sub-group, collected from the same Bithynia spp; and a furcocercous cercaria of a new sub-group ("Strigeid"), collected from Bulinus truncatus. Details are presented on the morphology and swimming activities of the cercariae as well as on their development within and emergence from the snail host.