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Cellules
Neurones
Neurofibres
Gaine de myéline
Gaine de myéline : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Démence
Imagerie par résonance magnétique
Potentiels évoqués
Évaluation neurologique
Sclérose en plaques
Neuropathie
Biopsie
Maladies neurologiques
Symptômes
5
Fatigue
Troubles de la vision
Douleur neuropathique
Syndrome douloureux
Coordination
Troubles de l'équilibre
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Mémoire
Variabilité des symptômes
Sclérose en plaques
Prévention
5
Prévention
Mode de vie sain
Exercice physique
Santé neurologique
Traitements
5
Médicaments immunomodulateurs
Thérapies symptomatiques
Rééducation
Thérapie physique
Corticostéroïdes
Inflammation
Thérapie génique
Cellules souches
Gestion des symptômes
Progrès de la maladie
Complications
5
Infections
Douleurs chroniques
Troubles visuels
Progression de la maladie
Handicap
Fonction cognitive
Réversibilité
Gestion des complications
Facteurs de risque
5
Antécédents familiaux
Infections virales
Sexe
Maladies démyélinisantes
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"description": "Comment diagnostiquer une démyélinisation ?\nQuels tests sont utilisés pour évaluer la myéline ?\nQuels signes indiquent une atteinte de la myéline ?\nLa biopsie nerveuse est-elle nécessaire ?\nQuels marqueurs biologiques sont associés à la démyélinisation ?",
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"@type": "Question",
"name": "Comment diagnostiquer une démyélinisation ?",
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"text": "Un IRM peut révéler des lésions de myéline dans le système nerveux central."
}
},
{
"@type": "Question",
"name": "Quels tests sont utilisés pour évaluer la myéline ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les potentiels évoqués et les tests neurologiques aident à évaluer la fonction myélinique."
}
},
{
"@type": "Question",
"name": "Quels signes indiquent une atteinte de la myéline ?",
"position": 3,
"acceptedAnswer": {
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"text": "Des symptômes comme des troubles de la coordination ou des engourdissements peuvent indiquer une atteinte."
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{
"@type": "Question",
"name": "La biopsie nerveuse est-elle nécessaire ?",
"position": 4,
"acceptedAnswer": {
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"text": "Rarement, mais elle peut être utilisée pour confirmer des maladies spécifiques de la myéline."
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"@type": "Question",
"name": "Quels marqueurs biologiques sont associés à la démyélinisation ?",
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"@type": "Question",
"name": "Quels sont les symptômes d'une démyélinisation ?",
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"acceptedAnswer": {
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"@type": "Question",
"name": "La douleur est-elle un symptôme courant ?",
"position": 7,
"acceptedAnswer": {
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"text": "Oui, des douleurs neuropathiques peuvent survenir en raison de la démyélinisation."
}
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{
"@type": "Question",
"name": "Comment la démyélinisation affecte-t-elle la coordination ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle peut provoquer des troubles de l'équilibre et des mouvements maladroits."
}
},
{
"@type": "Question",
"name": "Les troubles cognitifs sont-ils liés à la démyélinisation ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des problèmes de mémoire et de concentration peuvent survenir."
}
},
{
"@type": "Question",
"name": "Les symptômes varient-ils d'une personne à l'autre ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'intensité et le type de symptômes peuvent varier considérablement."
}
},
{
"@type": "Question",
"name": "Peut-on prévenir la démyélinisation ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Il n'existe pas de méthode garantie, mais un mode de vie sain peut réduire les risques."
}
},
{
"@type": "Question",
"name": "L'alimentation joue-t-elle un rôle ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une alimentation riche en oméga-3 et en antioxydants peut être bénéfique."
}
},
{
"@type": "Question",
"name": "Le stress influence-t-il la démyélinisation ?",
"position": 13,
"acceptedAnswer": {
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"text": "Oui, le stress peut aggraver les symptômes et déclencher des poussées."
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{
"@type": "Question",
"name": "L'exercice physique est-il recommandé ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'exercice régulier peut améliorer la santé neurologique et physique."
}
},
{
"@type": "Question",
"name": "Les vaccinations sont-elles importantes ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines vaccinations peuvent aider à prévenir des infections qui aggravent la démyélinisation."
}
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{
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"name": "Quels traitements existent pour la démyélinisation ?",
"position": 16,
"acceptedAnswer": {
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"text": "Les traitements incluent des médicaments immunomodulateurs et des thérapies symptomatiques."
}
},
{
"@type": "Question",
"name": "La rééducation est-elle utile ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la rééducation physique peut aider à améliorer la fonction et la mobilité."
}
},
{
"@type": "Question",
"name": "Les corticostéroïdes sont-ils efficaces ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Ils peuvent réduire l'inflammation et accélérer la récupération lors des poussées."
}
},
{
"@type": "Question",
"name": "Y a-t-il des traitements expérimentaux ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des thérapies géniques et des traitements à base de cellules souches sont en cours d'étude."
}
},
{
"@type": "Question",
"name": "Les traitements sont-ils curatifs ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, ils visent principalement à gérer les symptômes et à ralentir la progression."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications incluent des infections, des troubles de la mobilité et des douleurs chroniques."
}
},
{
"@type": "Question",
"name": "La dépression est-elle une complication fréquente ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la dépression est courante chez les personnes atteintes de démyélinisation."
}
},
{
"@type": "Question",
"name": "Les troubles de la vision peuvent-ils s'aggraver ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles visuels peuvent s'aggraver avec la progression de la maladie."
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},
{
"@type": "Question",
"name": "Y a-t-il un risque accru de handicap ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la démyélinisation peut entraîner un handicap physique ou cognitif à long terme."
}
},
{
"@type": "Question",
"name": "Les complications sont-elles réversibles ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines complications peuvent être gérées, mais beaucoup ne sont pas réversibles."
}
},
{
"@type": "Question",
"name": "Quels sont les principaux facteurs de risque ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent des antécédents familiaux, l'âge et des infections virales."
}
},
{
"@type": "Question",
"name": "Le sexe influence-t-il le risque ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les femmes sont plus susceptibles de développer des maladies démyélinisantes."
}
},
{
"@type": "Question",
"name": "Le tabagisme est-il un facteur de risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le tabagisme est associé à un risque accru de démyélinisation."
}
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"@type": "Question",
"name": "L'exposition à des toxines joue-t-elle un rôle ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'exposition à certaines toxines environnementales peut augmenter le risque."
}
},
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"@type": "Question",
"name": "Le climat a-t-il un impact sur le risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des études montrent que les personnes vivant dans des climats froids ont un risque plus élevé."
}
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Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 29/04/2025
Contenu vérifié selon les dernières recommandations médicales
4 publications dans cette catégorie
Affiliations :
Department of Pediatrics, Section of Developmental Biology, University of Colorado, Aurora, CO, USA. bruce.appel@cuanschutz.edu.
Publications dans "Gaine de myéline" :
3 publications dans cette catégorie
Affiliations :
Section on Nervous System Development and Plasticity, The Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD 20892, USA. Electronic address: fieldsd@mail.nih.gov.
Publications dans "Gaine de myéline" :
3 publications dans cette catégorie
Publications dans "Gaine de myéline" :
3 publications dans cette catégorie
Affiliations :
Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH8 9XD, United Kingdom.
Publications dans "Gaine de myéline" :
3 publications dans cette catégorie
Affiliations :
McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada.
Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada.
Publications dans "Gaine de myéline" :
3 publications dans cette catégorie
Affiliations :
Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada.
Publications dans "Gaine de myéline" :
3 publications dans cette catégorie
Affiliations :
Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.
International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, British Columbia, Canada.
Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada.
Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Publications dans "Gaine de myéline" :
3 publications dans cette catégorie
Affiliations :
Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Publications dans "Gaine de myéline" :
3 publications dans cette catégorie
Affiliations :
Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.
International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, British Columbia, Canada.
Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada.
Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Affiliations :
Neuroscience Graduate Program, University of Colorado, Aurora, CO, USA.
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Publications dans "Gaine de myéline" :
2 publications dans cette catégorie
Affiliations :
Centre for Regenerative Medicine, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh EH16 4UU, United Kingdom M.R.Livesey@Sheffield.ac.uk m.swire@ucl.ac.uk.
Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH8 9XD, United Kingdom.
Wolfson Institute for Biomedical Research, University College London, London WC1E 6BT, United Kingdom.
Publications dans "Gaine de myéline" :
AKI is a potential complication of intravascular iodinated contrast exposure. Contrast-associated AKI, which typically manifests as small and transient decrements in kidney function that develop withi...
Intravenous iodinated contrast media are commonly used in clinical practice, ranging from medical imaging to interventional radiology (IR) procedures and endovascular interventions. Compared with pati...
Contrast associated acute kidney injury (CA-AKI) can lead to an increased risk of adverse events. Contrast media (CM) volume reduction has been advocated as a pivotal strategy to prevent CA-AKI in sta...
To compare the effectiveness of CM volume reduction with the DyeVert...
We prospectively collected data from 136 patients with stable coronary artery disease at high risk of CA-AKI treated with left ventricular end diastolic pressure (LVEDP)- guided hydration and undergoi...
Patients in the DyeVert group were treated with a significant lower CM volume (median: 47.5 vs. 84.0 mL, p < 0.001). The trend in creatinine increase was lower (p = 0.004) and the Δ of creatinine (0-4...
CM volume reduction with the DyeVert...
The aim of this study was to quantify the effect of iodinated contrast media (ICM) conservation measures implemented at a single health system during a global shortage, comparing the 12-month period b...
Total body weight (TBW) is a frequently used contrast media (CM) strategy for dose calculation in enhanced CT, yet it is suboptimal as it lacks consideration of patient characteristics, such as body f...
Eighty-nine adult patients referred for CM thoracic CT were retrospectively included, categorized as either normal, muscular, or overweight. Patient body composition data was used to calculate the CM ...
BIA demonstrated the highest and lowest calculated CM dose in muscular and overweight groups respectively, compared to other strategies. For the normal group, the lowest calculated CM dose was achieve...
The BIA method is more adaptive to variations in patient body habitus especially in muscular and overweight patients and is most closely correlated to patient demographics. This study could support ut...
The BIA-based method is adaptive to variations in body habitus especially in muscular and overweight patients and is closely correlated to patient demographics for contrast-enhanced chest CT....
• Calculations based on BIA showed the largest variation in CM dose. • Lean body weight using BIA demonstrated the strongest correlation to patient demographics. • Lean body weight BIA protocol may be...
A severe shortage of iodinated contrast medium (ICM) has forced radiology departments around the world to implement strategies to reduce contrast utilization. The aim of this study was to evaluate the...
Our radiology department instituted several ICM-conserving interventions on 13...
The average daily number of CECT (all), CECT (inpatient and ED), CTPA, CECT AP, and 'Code stroke' CT scans decreased significantly (P < 0.01), by 58.6%, 68.8%, 74.1%, 88.0%, and 37.5%, respectively. T...
Interventions in CT alone, focused on improving patient triage to CECT while avoiding deferment of any outpatient oncology studies, have achieved an approximately two-thirds reduction in ICM consumpti...
To identify the risk factors for moderate and severe contrast media extravasation and provide effective guidance to reduce the degree of extravasation injuries....
We observed 224 adult patients who underwent contrast media extravasation at Xiangya Hospital of Central South University, Hunan Provincial Maternal and Child Healthcare Hospital, and Xiangya Changde ...
Among 224 patients, 0 (0%) had severe, 18 (8.0%) had moderate, and 206 (92.0%) had mild contrast media extravasation injury. Multivariate logistic regression analysis revealed malignant tumors (odds r...
Risk factors for moderate contrast media extravasation injury are malignant tumors, iohexol, large-volume (> 50 mL) extravasation, and back-of-the-hand injection. Analysis of these risk factors can he...
High-risk patients with extravasation support should choose the appropriate contrast media type, avoiding back-of-the-hand injections. We recommend that patients with cancer be implanted with a high-p...
Iodinated- (ICM) and gadolinium-based (GCM) contrast media are used in radiology imaging techniques, such as computer tomography (CT) and magnetic resonance (MR), respectively. The paper aims to analy...
To assess the role of atorvastatin to the frequency of contrast-induced acute kidney injury (CI-AKI) in patients with cardiovascular diseases (CVD) undergoing computed tomography (CT) with intravenous...
One hundred patients with CVD undergoing CT with with intravenous contrast media administration were included in prospective observational study (ClinicalTrials.gov ID NCT04666389). Patients were divi...
CI-AKI was diagnosed in 4 (3.96%) patients. At the same time, it was not possible to establish statistically significant relationships (p0.05) between risk factors and the development of CI-AKI. Stati...
Cardiovascular diseases may increase the risk of CI-AKI after computed tomography with intravenous contrast media administration. Therefore, it is recommended to evaluate the serum creatinine concentr...
To pool and summarise published data of pulmonary blood flow (PBF), pulmonary blood volume (PBV) and mean transit time (MTT) of the human lung, obtained with perfusion MRI or CT to provide reliable re...
PubMed was systematically searched to identify studies that quantified PBF/PBV/MTT in the human lung by injection of contrast agent, imaged by MRI or CT. Only data analysed by 'indicator dilution theo...
PBV was obtained from 313 measurements from 14 publications (wM: 13.97 ml/100 ml, wSD: 4.21 ml/100 ml, wCoV 0.30). MTT was obtained from 188 measurements from 10 publications (wM: 5.91 s, wSD: 1.84 s ...
Reference values for PBF, MTT and PBV were obtained in HV. The literature data are insufficient to draw strong conclusions regarding disease reference values....