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Biomedical subjects

B Gilot

Publications and source records attributed to B Gilot.

At least 37 records · Page 2Linked to original sources
PubMed1982

[Evolution of populations of ticks (Ixodidae and Argasidae) in relation to artificialization of the environment in the French Alps. Epidemiologic effects].

The results presented in this study are based on observations made during some 10 years in the French Alps and their surroundings. Forest clusters, as they still cover comparatively large areas, are considered the most favorable foci for several Ixodid species. Recent studies, however, have shown that environment modified by man also harbours large populations of ticks. The spreading of certain species around and even into cities is actually taking place. The following categories of tick species may be distinguished with reference to the artificialization process of the environment: 1. species occurring mainly in forest areas (Ixodes ricinus, I. trianguliceps); 2. species occurring in agricultural, suburban and preurban areas (Dermacentor reticulatus, Rhipicephalus turanicus); 3. species found in either natural wholes, burrows etc. or in constructions amidst rural areas (I. hexagonus, I. canisurga, R. pusillus); 4. species present exclusively in buildings, in either rural or urban areas (R. sanguineus, Argas reflexus). The vectorial role of the various tick species is discussed with regard to the artificialisation process. Particular attention is drawn to the appearance of new, and the extension of previously known foci of disease transmission in the vicinity of large cities.

Adaptation, Physiological↗
PubMed1981

[Distribution and epidemiological value of Rhipicephalus turanicus. Ecology of the species in the South-Mediterranean part of France (author's transl)].

Following a study of potential vectors of the boutonneuse Fever in the lower Rhône valley, the authors summarize knowledge concerning Rh. turanicus (biogeography, hosts, seasonal dynamics). Using their own work, they emphasize its distribution and ecology in the French mediterranean region: as an exophile species, frequently encountered because of the rich variety of its hosts (domestic and wild) and its adaptability to numerous human biotopes, it probably has a very significant epidemiological role.

Animals↗
PubMed1976

[Distribution and ecology of Ixodes trianguliceps (Birula, 1895) (Acarina, Ixodoidea) in France, particularly in the South-East].

Ixodes trianguliceps, parasite of insectivores and rodent mammals seems to be distributed throughout France, except in the mediterranean low altitude areas. This tick which does not manifest any parasitic specificty, has meanwhile preferred hosts (Clethrionomys glareolus, especially). At low altitudes, it likes forests, hedge-rows and heaths and at higher altitudes (Subalpine and alpine), opened area may be densely inhabited. The authors study the numerous concerned vegetal associations and precise the tick's phenology, particularly in the Bas-Dauphiné. They also discuss the many hypothesis concerning the still unknown ecology of I. trianguliceps free instars.

Altitude↗
PubMed1975

[Ecological study of Ixodes ricinus (Linné, 1758) (Acarina, Ixodoides) in southeastern France].

Ixodes ricinus (LINNE, 1758) is being surveyed in the northern Alp and the Jura mountains. This species, quite often found in the mesophilous forests of the hills, preferably takes root in the forest clusters, where there is a mull type mild humus often covered with an abundant litter. Such plant layers maintain a high degree of moisture, which beneficially affects this species. Examinations performed for three years in a southern Jura's resort allow for securing a preliminary approximation as regards the seasonal population variations.

Animals↗
PubMed1975

[Vegetation analysis used for the detection of exophile tick populations in the south-east of France: the example Ixodes ricinus (Linne 1758) (acarina, ixodoidea)].

The cross-linking relation between the evidence of outside living tick populations and specific vegetation units allows for efficiently using the vegetation maps, and more especially the medium scale maps. Ixodes ricinus is referred to here as an example. The limitations of this data derived from such maps are evaluated by the authors. They suggest some means aiding in improving their efficiency through the knowledge of the ecological variables playing a role in the species settlement.

Methods↗
PubMedDate not supplied

[Suburban biotopes of Rhipicephalus turanicus (Pomerancev, Matikasvili, Lototzki, 1940). (Acarina, Ixodoidea). Preliminary study (author's transl)].

Investigations carried out on the waste grounds of a certain number of large Mediterranean towns in Provence and Languedoc (France) show the prevalence of Rhipicephalus turanicus in such an environment. The authors analyse the conditions favourable to the installation of the species, and make a comparison between the suburban biotopes with Rhipicephalus turanicus and the homologous biotopes with Dermacentor reticulatus.

Animals↗
PubMedDate not supplied

[Case report: electroconvulsive therapy during pregnancy].

The treatment for psychiatric disorders in pregnancy remains difficult to implement. We report the case of a 28-year-old woman, 20 weeks pregnant when admitted in our psychiatric department. She presented severe depressive disorder, associated with agitation, and psychotic symptoms as delusion and hallucinations occurred. The patient had a history of recurrent mood disorders dating back to eight years before the current admission, including some atypical episodes (psychotic symptoms only), and alternating with free periods without any trouble. A non-specific personality disorder is also probably present. We first used antidepressant (clomipramine) and sedative phenothiazine drugs. Because of the lack of therapeutic efficacy, three weeks later we tried another pharmacologic prescription, that also failed to improve the patient' status. It was hence decided to proceed with electroconvulsive therapy. We describe here the management of the courses, especially the careful monitoring and the anesthetic features we employed, among which endotracheal intubation, oxygen supply, real-time ultrasonography, and recording uterine contractions and fetal heart rate. All theses measures were applied within a surgical-obstetrical theatre. Nine bifrontal courses were performed in five weeks. They rapidly and completely improved the psychiatric symptoms. No sign of fetal neither maternal bad tolerance occurred. While the patient had been authorized to leave hospital, in 34th weeks amenorrhea a routine ultrasonographic examination discovered worrying fetal ascites signs. After the emergency caesarean delivery, the male newborn child undergone immediately surgical treatment for vascular meconium peritonitis, but died nine days later with metabolic post-surgical troubles. This fatal outcome after electroconvulsive therapy leads us to discuss its possible involvement, and in a more general way the safety and place of this treatment in pregnancy psychiatric disorders. They remain critical situations in which therapeutic methods should be rapidly decided. The authors wish others practitioners to bring new case-reports in order to assess the ECT safety-use during pregnancy.

Adult↗