Corrélats anatomocliniques au cours de la démence de la maladie de Parkinson

IntroductionCognitive disorders such as deficit of attention and executive and visuoconstructive dysfunctions occur in Parkinson's disease dementia (PDD). Memory impairment is not an early feature and statement not well delimited.Case reportA 78-year-old man with PDD underwent neuropsychological assessment and moreover demonstrated memory decline. After death, pathology examination of the brain and immunohistochemy analysis confirmed PD and showed Lewy body pathology (LBP) in the insula, limbic and especially in CA3 hippocampus areas. Hippocampus and gyrus parahippocampic also exhibited neurofibrillary tangles. Lack of senile plaque and lack of beta A4 amyloid deposition were noticeable in the whole brain examination.ConclusionSevere executive dysfunctions are probably related to LBP and dysfunction in memory process may be related to DNF lesions in medial temporal area.     

Le réseau de surveillance de la maladie de Creutzfeldt-Jakob

IntroductionTransmissible spongiform encephalopathies (TSE) have been under epidemiological surveillance in France and in Europe since the early 1990s. The observation of iatrogenic Creutzfeldt-Jakob disease (CJD), the outbreak of bovine spongiform encephalopathy (ESB) and its probable transmission to many species gave rise to the surveillance which remains warranted by the emergence of a variant of CJD (vCJD), in 1996.State of artIn France, epidemiological surveillance is coordinated by the InVS which receives input from cases notifications addressed to INSERM Unit 708 directly by clinicians or more often following requests for 14-3-3 detection in CSF. All suspected cases are followed up until a final diagnosis is established. Thanks to the effectiveness of the French network of neuropathology, autopsies are performed in more than half of patients who die with a diagnosis of suspected CJD. Diagnostic criteria allow comparison of the incidence of the different forms of the disease in all countries with a system of surveillance. Sporadic CJD is the most frequent form of the disease with more than 80% of the cases. Its origin remains unknown. To date, cases of iatrogenic CJD referred to the French surveillance network have been caused by dura mater grafts or human growth hormone treatments administrated in the 1980s. Ten percent of TSE are of genetic origin with an autosomic dominant transmission of a mutation or an insertion located on the PRNP gene. The most recent form of the disease is vCJD which is a new form, first described in the United Kingdom in 1994.Prospect and conclusionActive epidemiological surveillance remains a timely issue, particularly in France, because of the development of new cases of iatrogenic CJD after human growth hormone treatment. It is of importance in France and worldwide because of the emergence of post-transfusional cases of vCJD and the possible appearance of vCJD in persons with valine-valine or methionine-valine genotypes at codon 129.     

Robots de téléprésence et intersubjectivation

Objectives

The aim of this paper was to analyze the experiences of students to whom a telepresence robot was made available in periods during which they were prevented from attending university courses.

Le maintien de l'équilibre pondéral

Sans résuméAvec 21 FiguresNo type of sensation is understood by physiologists or psychologists. If the study of feeding is postponed until the nature of sensation is clarified, we shall have long time to wait, indeed. (J. R. Brobeck, 1957)