Results 11 to 20 of about 9,661 (222)

The effects of subcurative praziquantel treatment on life-history traits and trade-offs in drug-resistant Schistosoma mansoni [PDF]

open access: yes, 2017
Natural selection acts on all organisms, including parasites, to maximize reproductive fitness. Drug resistance traits are often associated with life-history costs in the absence of treatment.
Chamez K.   +5 more
core   +10 more sources

Comparative Study of Transcriptome Profiles of Mouse Livers and Skins Infected by Fork-Tailed or Non-Fork-Tailed Schistosoma japonicum

open access: yesFrontiers in Microbiology, 2017
Schistosoma japonicum (S. japonicum) is a worldwide spread pathogen which penetrates host skin and then induces several diseases in infected host, such as fibrosis, formation of granulomas, hepatocirrhosis, and hepatomegaly.
Yan Yang   +6 more
doaj   +1 more source

Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni) [PDF]

open access: yes, 2010
Here, we observed the uptake of membrane-impermeant molecules by cercariae as they penetrate the skin and are transformed into schistosomula. We propose that membrane-impermeant molecules, Lucifer Yellow, Propidium iodide and Hoechst 33258 enter the ...
Alvisi de Oliviera, Fabricia   +7 more
core   +4 more sources

Schistosoma mansoni and other larval trematodes in Biomphalaria tenagophila (Planorbidae) from Guarulhos, São Paulo State, Brazil Infecção por Schistosoma mansoni e outros trematódeos em Biomphalaria tenagophila (Planorbidae) de Guarulhos, São Paulo, Brasil

open access: yesRevista do Instituto de Medicina Tropical de São Paulo, 2009
A total of 909 Biomphalaria tenagophila were collected from two areas in Guarulhos (Metropolitan area of São Paulo, São Paulo State, Brazil) to assess larval trematode infections.
Josué de Moraes   +3 more
doaj   +1 more source

Characterization, cloning and immunogenicity of antigens released by transforming cercariae of Schistosoma mansoni [PDF]

open access: yes, 2000
A schistosome infection is initiated when the parasite penetrates the skin of a susceptible host. Relatively large quantities of protein are released by transforming cercariae compared to later larval stages.
Coulson, P.S.   +4 more
core   +1 more source

Larval trematodes infecting the South-American intertidal mud snail Heleobia australis (Rissooidea: Cochliopidae) [PDF]

open access: yes, 2014
Larval trematodes infecting the snail Heleobia australis (Cochliopidae) from the Bahía Blanca estuary, Argentina were surveyed for two years. A total of 7,504 snail specimens was dissected and the larval stages of 15 different trematodes were recovered ...
Alda, Maria del Pilar   +1 more
core   +2 more sources

Drepanotrema kermatoides (Orbigny, 1835) (Mollusca, Planorbidae), hospedeiro de um paranfistomídeo (Trematoda), no Rio Grande do Sul, Brasil Drepanotrema kermatoides (Orbigny, 1835) (Mollusca, Planorbidae), host of a paramphistomid (Trematoda), in Rio Grande do Sul, Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 1989
São descritas e ilustrradas rédia, cercária imatura e cercária madura e metacercária de um paranfistomídeo, provavelmente do gênero Paramphistomum (Fischoeder, 1901).
Inga Ludmila Veitenheimer-Mendes   +1 more
doaj   +1 more source

Can the studies at a spatial scale of 100s meters detect the spatiotemporal fluctuations of a parasite assemblage? [PDF]

open access: yes, 2013
The importance of small-scale heterogeneity in local factors which overrides that of larger-scales factors, suggest that local factors play a major role in determining the richness and prevalence of larval digeneans in intertidal gastropods.
Etchegoin, Jorge Alejandro   +2 more
core   +1 more source

Schistosoma mansoni: host cell adhesion to the different stages of the parasite, in vivo Schistosoma mansoni: adesão de células do hospedeiro aos diferentes estádios do parasito, in vivo

open access: yesRevista do Instituto de Medicina Tropical de São Paulo, 1992
The peritoneal cavity of laboratory mice was used to study the phenomenon of host cell adhesion to different evolutive stages of the Schistosoma mansoni (cercaria, adult worm, developing and mature eggs, miracidium, young and mature daughter sporocysts).
Alan L. Melo   +2 more
doaj   +1 more source

Stunting of the penis in Heleobia parchappii (Mollusca: Cochliopidae) and its relationship with parasitism [PDF]

open access: yes, 2017
Penis anatomy is used to discriminate species of gastropods belonging to the family Cochliopidae; however, this characteristic may be affected by the presence of parasites.
Etchegoin, Jorge Alejandro   +2 more
core   +2 more sources

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