Biomedical subjects
Publications and source records attributed to C Vermeil.
In our attempts to elucidate the pathogenesis of prolonged Salmonella bacteremia in patients with Schistosoma mansoni or Schistosoma haematobium infection, we have utilised MEB. Our results are significant. They show an association exists between Bilharziasis and Salmonellosis.
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The authors explain by what means they have been conducted to use the anti-tumoral power shown by the peptido-glycans produced in the wall of unicellular algae. The first human trials when the algae are introduced in the peritoneal cavity have shown a good tolerance.
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The integumental surface of cercaria (Schistosoma mansoni was studied by scanning electron microscopy (SEM) at 400 to 20,000 magnifications. Cercariae studied by SEM showed clearly the surface topography. The spines have been seen by light microscopists and recognised as an adaptation for penetration of the host.
A retrospective study on amoebiasis observed in the central hospital in Nantes since twenty years, shows that, at least, 16 % of the intestinal cases and 1/6, 5 of 30 cases of hepatic amoebiasis are autochthonous.
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If the description in the literature is based on a study with the light microscope, in this work, with electron microscope scanning, the integumental surface on the larva of Dipetalonema viteae is studied at 1,500 to 50,000 magnifications.
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Studies performed in vivo and in vitro, using scanning electron microscopy, on relations between Schistosoma mansoni and some enterobacteria show a strong association for certain bacterial strains (Salmonella typhimurium). Salmonellae adhesion on tegumental surface of male and mature Schistosoma is only possible in vitro owing to bacterial synthesis of strong fibres penetrating inside the worm. These interactions are not found with Escherichia coli, Proteus mirabilis or with young schistosomula.
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The optical microscopy (on histological preparations) and scanning observations of Schistosoma mansoni is conducted in the presence of various species of Salmonella. It is well-obtained that the Schistosoma maturity, its metabolic activity and the action of antibodies anti-salmonella have influenced the bacterian fixation on the worm. An hypothesis about the possible mechanism of this attachment is then developed and also an hypothesis about the protection of bacteria against antibiotherapy among patients infected with Schistosoma and carriers of salmonellosis.