[Use of latex balls labelled by lectins in the demonstration of Salmonella-Schistosoma mansoni receptor sites]. / Utilisation de billes de latex marquées par des lectines dans la mise en évidence des sites récepteurs salmonelles Schistosoma mansoni.

Surface tegumental membrane of adult stage Schistosoma mansoni were examined using the latex sphere coated with Concanavalin A (Con A). Wheat germ agglutinin (WGA) and Protein A (PA). Competitive saccharide inhibitors glucose, mannose and methyl alpha-D-glucopyranoside were used for Con A.

[Babesiasis, pediatric malaria: does confusion exist in Africa?]. / Babésiose, paludisme infantile: la confusion existe-t-elle en Afrique?

The authors describe a case of febrile disease acquired by a nursling in Africa: was it induced by Pl. falciparum or by Babesia sp.? In spite of numerous microscopic and serological appraisals from veterinary and medical authorities, it is difficult to state definitively this subject, but it is more probably a babesiosis of canine or rodent origin.

[Specificity in the relationship between Salmonella typhimurium and Schistosoma mansoni]. / Nouvelle contribution à l'étude de la spécificité dans les relations entre Salmonella typhimurium et Schistosoma mansoni.

Special interaction between Salmonella typhimurium (STM) and Schistosoma mansoni is considered under two complementary aspects, in vivo and in vitro, using scanning and transmission electron microscopy. The resulting observations have obviously permitted us to discover a large specificity in these adhesion phenomena that seems to lead to the fusion of membranes between the two organisms. Microanalysis trials executed in these areas of strong affinity were attempted.

[Use of scanning electron microscopy coupled with transmission electron microscopy in comparative studies of the relation between Schistosoma mansoni and Salmonella typhimurium]. / Utilisation de la microscopie électronique à balayage couplée à la microscopie électronique à transmission dans les études comparatives des relations entre Schistosoma mansoni et Salmonella typhimurium.

Relations between Schistosoma mansoni and Salmonella typhimurium are studied in vivo and in vitro using scanning and transmission electron microscopy as complementary methods. Salmonellae adhesion is a specific process materialized in special places of male and mature schistosome tegumental surface. Interactions are marked by bacterial strong fibres creating a network all around Schistosoma where Salmonellae are dividing. Membrane junction is the last stage leading to symbiotic balance between two biologic systems.

[Studies in vivo and in vitro on relations between Schistosoma mansoni and some enterobacteria strains]. / Etudes in vivo et in vitro des relations entre Schistosoma mansoni et certaines souches d'entérobactéries.

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.

[New contribution on Dipetalonema viteae. Keeping adults alive in vitro. Scanning electron microscope study of the development of embryos and young larvae L1 and L2]. / Nouvelle contribution à l'étude de Dipetalonema viteae. Maintien en survie des adultes in vitro. Observation en microscopie électronique à balayage du développement des embryons et des jeunes larves L1 et L2.

The adult stages of Litosomosoides carinii, Dirofilaria uniformis and Dirofilaria immitis have been successfully maintained in vitro though microfilaria production by the worms continued only for a period of one to 18 days. In this paper we describe the results obtained in a series of experiments in which adult L1 and L2 stages of Dipetalonema viteae were maintained in vitro.

[Possible transfer between sarcomatous mouse cells (BP8) and yeasts (Saccharomyces cerevisiae, whole bodies and protoplasts)]. / Nouvelle contribution à l'étude des échanges possibles entre cellules sarcomateuses murines (BP 8) et levures (Saccharomyces cerevisiae, formes entières et protoplastes).

From our observation in vitro, we can suggest that : a direct contact between sarcomatous cells and physiologically active yeasts appears to be necessary for the transfer of the radioactive labelling; the presence of a filter with pores of 1.2 micrometer diameter prevents passage of fragments of DNA or RNA between the cells; this transfer is a very small fact, but implies about the third of the yeasts.