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Biomedical subjects

C Vermeil

Publications and source records attributed to C Vermeil.

At least 37 records · Page 2Linked to original sources

[Human pulmonary adiaspiromycosis: comment on a new case in Brittany].

Pulmonary and human adiaspiromycosis in Brittany: a new observation. A young woman is operated on for pulmonary abcess. The histological study the pulmonary tissue around and at a distance from the abcess shows numerous adiaspores of Emmonsia crescens Emmons & Jellison (1960). The culture of the fungus were not possible. The authors discuss the relationship between the fungus and the pulmonary lesions observed in the cases of human adiaspiromycosis.

Chrysosporium↗

[Deviation of the life cycle of Dipetalonema viteae (Filarioidea)].

Dipetalonema viteae is a filarial that can evoluate among hosts zoologically broadly apart (Ixodides and Argasides), but always gathered from meriones burrows. Its evolution is, on the contrary, blocked among most of the other ticks, particularly among Ornithodoros erraticus morphologically very similar to the normal vector. Our work concerns the experimental deviation of the cycle of Dipetalonema viteae, with its possible adaptability in the bosom of an intermediate of fowl tropism and a permanent host, different from a gnawing.

Animals↗

[Do the eosinophilic granulomas observed in Brittany represent a form of anisakiasis? The larvae of Thynnascaris aduncum do not produce these granulomas experimentally].

To explain the enigmatical origin of gastric eosinophilic granulomas prevailing among patients in Brittany (France), we have tried to experiment with the larvae of Thynnascaris (Thynnascaris aduncum (Rud.)), a Nematode found in the sardine (Sardina pilchardus (Walbaum)), a fish sometimes eaten raw in our country. In a preliminary experiment, larvae of Thynnascaris were observed to penetrate the mucosa of the rabbit stomach in vitro at room temperature. But in vivo, whatever the means, the ways and the experimented mammals of our study, we have failed to experimentally reproduce such tumours. We think that this result belongs to the fact that the larvae of Thynnascaris in the conditions of our experimentation could not perform an evolution in homeothermal animals.

Animals↗

[Release of "Saccharomyces cerevisiae" protoplasts: scanning electron microscope study (author's transl)].

In a previous study we described the minimal methodology used to obtain protoplasts from ascomycetous yeasts. Using a reducing agent associated with 1,3-beta-glucanase at 26 degrees C, protoplasts were invariably obtained. In the present study we localized the disruption spots of the cell wall using the two same reagents. The observations were made with the scanning electron microscope. The disruption site was always in the subterminal region, and this very simple structure (proteins with disulphide bridges and 1,3-beta-glucans) was opposite the birth-scar. The dissociation of the two reagents showed that a small part of the yeast population was able to release protoplasts with only glucanase. We believe these very sensitive yeasts (2 to 10% population) to be very young cells. These disruption sites seemed very different from budding-sites. They might be identical with elongation-sites, or with the opening in the ascus-wall during germinating ascospore release.

Glucan Endo-1,3-beta-D-Glucosidase↗