Results: 101

Changes in energetic metabolism of Biomphalaria glabrata (Mollusca, Planorbidae) in response to exogenous calcium

Braz. j. biol; 77 (2), 2017
Abstract Calcium is considered an essential element for the metabolism of aquatic snail Biomphalaria glabrata (Say, 1818), intermediate host of Schistosoma mansoni Sambon, 1907 in Brazil, and represents a limiting factor to its distribution and adaptation to the environment. This study investigated the e...

Host-parasite relationship between Biomphalaria amazonica (Paraense, 1966) and Schistosoma mansoni (Sambon, 1907)

Braz. j. biol; 77 (2), 2017
Abstract Biomphalaria amazonica is a planorbid species considered a potential host of Schistosoma mansoni. It is widely distributed in the Neotropical zone, particularly in the North and Centre-West of Brazil and in the North of Bolivia. The aim of the present study was to determine the host-parasite rel...

The Geographic Information System applied to study schistosomiasis in Pernambuco

ABSTRACT OBJECTIVE Diagnose risk environments for schistosomiasis in coastal localities of Pernambuco using geoprocessing techniques. METHODS A coproscopic and malacological survey were carried out in the Forte Orange and Serrambi areas. Environmental variables (temperature, salinity, pH, total disso...

Total protein composition of young and adult Biomphalaria alexandrina snails with different compatibilities to Schistosoma mansoni infection

Rev. biol. trop; 64 (4), 2016
Abstract:Schistosomiasis remains a disease of major global public health concern since it is a chronic and debilitating illness. The widely distributed Schistosoma mansoni that causes intestinal schistosomiasis represents a great threat. Its world-wide distribution is permitted by the broad geographic ra...

Irrigation canals in Melo creek basin (Rio Espera and Capela Nova municipalities, Minas Gerais, Brazil): habitats to Biomphalaria (Gastropoda: Planorbidae) and potential spread of schistosomiasis

Braz. j. biol; 76 (3), 2016
Abstract This study analyzed the presence of Biomphalaria in Melo creek basin, Minas Gerais state, and its relationship to irrigation canals. Seventeen of these canals were used to determine a limnological, morphological and hydrological characterization during an annual seasonal cycle. Biomphalaria samp...

Desenvolvimento de métodos moleculares baseados em PCR para a detecção de Schistosoma mansoni

Os primers que apresentam como alvo o gene que codifica o rDNA de SSU foram projetados para amplificar com elevada especificidade DNA de Schistossoma mansoni. Cinco sistemas de PCR foram desenvolvidos: PCR convencional, nested-PCR (NPCR) convencional, single tube nested PCR (STNPCR), hemi-nested PCR (HNP...

Estudo comparativo dos aspectos reprodutivos de duas populaçöes de Biomphalaria tenagophila (Orbigny 1835) de áreas com e sem transmissäo de esquitossomose no Estado de Säo Paulo

Biomphalaria tenagophila (Orbigny 1835) é uma espécie de caramujo reconhecida como a principal hospedeira intermediária da esquistossomose no Estado de Säo Pauo. As espécies de Biomphalaria säo hermafroditas com possibilidades reprodutivas para autofecundaçäo e fecundaçäo cruzada. Estudos labor...

Toxicidade reprodutiva de poluentes ambientais para moluscos de água-doce: estudos com caramujos do gênero biomphalaria

A poluição das águas vem sendo motivo de crescente preocupação face as previsões de escassez deste recurso natural. Neste contexto, os testes de toxicidade tem sido úteis para nortear atividades regulatórias voltadas para controle da poluição e prevenção de danos aos ecossistemas aquáticos. ...