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Biomedical subjects

A Moreau

Publications and source records attributed to A Moreau.

At least 181 records · Page 10Linked to original sources
PubMed1983

[Paracrystalline inclusions of nutritive cells of galls induced by Diplolepis rosae L. on Rosa canina L].

Numerous crystalline inclusions are found in the nutritive cells lining the larval cavities of the galls induced by Diplolepis rosae L. on Rosa canina L. Electron microscopic investigations show that these intracytoplasmic inclusions consist of staggered, closely parallel, and slightly wavy filaments. In each filament three fibrils can be distinguished inside a less electron-dense matrix. The different aspects that the filaments may present according to the section plans are studied with an electron microscope equipped with a goniometric stage. Enzymatic digestion of ultrathin sections show that the paracrystals are essentially composed of proteins. This conclusion is sustained by the results of an ultrastructural autoradiographic study using tritiated aminoacids. The physiological significance of these paracrystals is discussed: their presence is probably related to a larval action which stimulates proteosynthesis in the cells surrounding the consumed ones.

Cytoskeleton↗
PubMedDate not supplied

Analysis of foodborne disease in Belgium in 1997.

Foodborne disease represents a major problem for public health in industrialized countries, albeit with a low lethality. Foodborne diseases are defined as a group of viral, bacterial or parasitic gastrointestinal infections transmitted by means of food. Proper food-hygiene practices and surveillance of individual diseases and in particular outbreaks are the first steps in targeting their prevention. The incidence of this illness is difficult to estimate. In the Netherlands a yearly incidence of gastrointestinal infections of 500 per 1,000 inhabitants is estimated, of which most are foodborne. To set up priorities in the actions to undertake, to establish the most frequent risks, to develop preventive efforts and to answer to international requirements, accurate data on foodborne disease from Belgium are required. In order to co-ordinate the initiatives in the Belgian context, a working group was set up in 1995. In 1997 a total of 2,013 persons with foodborne disease were identified as part of 140 outbreaks, 22 of which occurred with 10 cases or more. Salmonella Enteritidis (88 outbreaks) was identified as the main pathogen in foodborne disease, followed by S. Typhimurium (11), S. Hadar (4). Eggs and meat products were identified as the main food-items involved, although it remains difficult to obtain proper intervention studies allowing to identify the specific cause(s). In 1997, a total of 12,732 human Salmonella isolates and 5,617 Campylobacter isolates were identified by the respective national reference laboratories. Salmonella isolates from Belgium accounted in 1997 for more than a fifth of all Salmonella isolates in the EU. The final objective of the working group is the implementation of a surveillance system for all risk factors concerned with the development of food-related illness, including an early warning system and an efficient analysis of microbiological criteria relating to human health, food and food production, including livestock. An essential element of this surveillance is communication of the results, risks and measures for prevention between all the departments, institutions and public health authorities concerned.

Bacterial Infections↗
PubMedDate not supplied

[A kibbutz group].

Kibbouts-group: three therapeutic or growth factors together: manual work, community life and group technics (group dynamic, Gestalt, psychodrama, bio-energetic) during two weeks. The work of growing and therapy is becoming more concrete and facilitated by the absence of difference between members and leader who share the work and the community life. Important and rapid changes are frequent: a particular attention is given to the "unmedicalisation" of symptoms (fatigue) and to the "unpsychiatrisation" of conflicts. A sample and authentical life style, together with a high degree of communication, favor the desinhibition of attitudes, the clarification of conflicts and the reenforcement of the personality.

Belgium↗
PubMedDate not supplied

Intralymphnode injection of human monocyte macrophage colony stimulating factor (CSF-1) as a method of obtaining high titer anti-CSF-1 antibodies.

We describe a rabbit intralymphnode immunization technique for obtaining a high titer antihuman CSF-1 antiserum with small amounts of antigen. This procedure provided a rapid (42 days after primo-injection), stable maximum immune response with a high titer antiserum precipitating 30% of 125I CSF-1 at a 1:25.000 dilution. The specificity of the immune serum was assessed by competitive binding experiments in RIA and neutralization of the CSF-1 biological activity in culture. The antiserum was also tested for its ability to detect CSF-1 in Western blotting, immunocytochemistry and immunohisto-chemistry. The results show that the immune serum specifically recognizes the biological active domain of human CSF-1 molecules from different origins and only detects dimeric forms. The potential uses of this anti CSF-1 antiserum are discussed.

Animals↗