questionsmedicales.fr
Structures virales
Virion
Virion : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Tests de diagnostic
Virion
Microscopie électronique
Virus
Tests sérologiques
Anticorps
Symptômes
5
Infection virale
Symptômes
Variabilité des symptômes
Virus
Période d'incubation
Infection virale
Symptômes neurologiques
Virus
Prévention
5
Masques
Transmission virale
Hygiène personnelle
Prévention
Traitements
5
Antibiotiques
Infection virale
Traitement symptomatique
Infection virale
Résistance virale
Antiviraux
Complications
5
Complications
Infection virale
Maladies chroniques
Virus
Gestion des complications
Traitement
Variabilité des complications
Virus
Facteurs de risque
5
Facteurs de risque
Infection virale
Stress
Système immunitaire
Maladies chroniques
Infection virale
Environnement
Infection virale
Habitudes alimentaires
Système immunitaire
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"@type": "Question",
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"@type": "Question",
"name": "Les virions peuvent-ils être visualisés au microscope ?",
"position": 3,
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"@type": "Question",
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"@type": "Question",
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"@type": "Question",
"name": "Les symptômes d'une infection virale sont-ils immédiats ?",
"position": 9,
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"text": "Non, il peut y avoir une période d'incubation avant l'apparition des symptômes."
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{
"@type": "Question",
"name": "Les virions peuvent-ils provoquer des symptômes neurologiques ?",
"position": 10,
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"text": "Oui, certains virions, comme ceux de la grippe, peuvent affecter le système nerveux."
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"@type": "Question",
"name": "Comment prévenir les infections virales ?",
"position": 11,
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{
"@type": "Question",
"name": "Les masques protègent-ils contre les virions ?",
"position": 12,
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"text": "Oui, les masques réduisent la transmission des virions par voie respiratoire."
}
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{
"@type": "Question",
"name": "Les vaccins sont-ils efficaces contre tous les virions ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, chaque vaccin cible des virions spécifiques et ne protège pas contre tous."
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"@type": "Question",
"name": "L'hygiène personnelle aide-t-elle à prévenir les infections ?",
"position": 14,
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"name": "Les voyages augmentent-ils le risque d'infection virale ?",
"position": 15,
"acceptedAnswer": {
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{
"@type": "Question",
"name": "Quels traitements sont efficaces contre les virions ?",
"position": 16,
"acceptedAnswer": {
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"text": "Les antiviraux, comme l'oseltamivir, sont utilisés pour traiter certaines infections virales."
}
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{
"@type": "Question",
"name": "Les antibiotiques sont-ils efficaces contre les virions ?",
"position": 17,
"acceptedAnswer": {
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{
"@type": "Question",
"name": "Comment les vaccins agissent-ils contre les virions ?",
"position": 18,
"acceptedAnswer": {
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"text": "Les vaccins stimulent le système immunitaire à reconnaître et combattre les virions."
}
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{
"@type": "Question",
"name": "Les traitements symptomatiques sont-ils utiles ?",
"position": 19,
"acceptedAnswer": {
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}
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{
"@type": "Question",
"name": "Les traitements antiviraux sont-ils toujours efficaces ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
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},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir après une infection virale ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications comme la pneumonie, la déshydratation ou des infections secondaires peuvent survenir."
}
},
{
"@type": "Question",
"name": "Les virions peuvent-ils causer des maladies chroniques ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certains virions, comme le VIH, peuvent entraîner des maladies chroniques."
}
},
{
"@type": "Question",
"name": "Comment les complications sont-elles gérées ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications sont gérées par des traitements symptomatiques et des soins médicaux appropriés."
}
},
{
"@type": "Question",
"name": "Les complications varient-elles selon le virion ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, chaque virion peut entraîner des complications différentes selon l'hôte."
}
},
{
"@type": "Question",
"name": "Les enfants sont-ils plus à risque de complications ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les enfants peuvent être plus vulnérables aux complications des infections virales."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque d'infection virale ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent l'âge, le système immunitaire affaibli et l'exposition à des porteurs."
}
},
{
"@type": "Question",
"name": "Le stress affecte-t-il le risque d'infection virale ?",
"position": 27,
"acceptedAnswer": {
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}
},
{
"@type": "Question",
"name": "Les maladies chroniques augmentent-elles le risque d'infection ?",
"position": 28,
"acceptedAnswer": {
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"text": "Oui, les maladies chroniques peuvent affaiblir l'immunité et augmenter le risque d'infection virale."
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{
"@type": "Question",
"name": "L'environnement joue-t-il un rôle dans le risque viral ?",
"position": 29,
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{
"@type": "Question",
"name": "Les habitudes alimentaires influencent-elles le risque viral ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une alimentation déséquilibrée peut affaiblir le système immunitaire et augmenter le risque."
}
}
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}
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}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 09/03/2025
Contenu vérifié selon les dernières recommandations médicales
3 publications dans cette catégorie
Affiliations :
Structural Virology Group, Central European Institute of Technology, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic.
Publications dans "Virion" :
3 publications dans cette catégorie
Affiliations :
Structural Virology Group, Central European Institute of Technology, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic pavel.plevka@ceitec.muni.cz.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Structural Virology Group, Central European Institute of Technology, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Department of Zoology, Fishery, Hydrobiology, and Apidology, Faculty of Agronomy, Mendel University in Brno, Zemědělská 1/1665, 613 00 Brno, Czech Republic.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Cellular Signalling and Cytoskeletal Function Laboratory, The Francis Crick Institute, London, United Kingdom.
Department of Infectious Disease, Imperial College, London, United Kingdom.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Central European Institute of Technology, Masaryk University, Kamenice 753/5, Brno, 625 00, Czech Republic.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Waksman Institute for Microbiology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA.
Department of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, 19107, USA.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Department of Cell Biology and Neuroscience, Rowan University School of Osteopathic Medicine at Stratford, Stratford, NJ, 08084-1489, USA.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20894, USA.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20894, USA.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow, 121205, Russia. maria.sokolova@mpinat.mpg.de.
Department of Molecular Biology, Max Planck Institute for Multidisciplinary Sciences, Göttingen, 37077, Germany. maria.sokolova@mpinat.mpg.de.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Department of Microbiology & Cell Biology, Montana State Universitygrid.41891.35, Bozeman, Montana, USA.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Department of Microbiology & Cell Biology, Montana State Universitygrid.41891.35, Bozeman, Montana, USA.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Department of Microbiology & Cell Biology, Montana State Universitygrid.41891.35, Bozeman, Montana, USA.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Weizmann Institute of Science, Rehovot 7610001, Israel.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Weizmann Institute of Science, Rehovot 7610001, Israel.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Weizmann Institute of Science, Rehovot 7610001, Israel.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
California Institute of Technology, Pasadena, CA 91125, USA.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
California Institute of Technology, Pasadena, CA 91125, USA.
Chan Zuckerberg Biohub, 499 Illinois Street, SF CA 94158, USA.
Publications dans "Virion" :
2 publications dans cette catégorie
Affiliations :
Weizmann Institute of Science, Rehovot 7610001, Israel.
Publications dans "Virion" :
With the phasing down of dental amalgam use in response to the Minamata Convention, it is likely that resin-based composite restoratives will be the dental material of choice for the direct restoratio...
Our goal was to evaluate the clinical behavior of resin-based composite (RBC) restorations with sealed marginal defects using nano-filled flowable RBCs (FRS) compared with resin-based sealant (RBS); t...
This was a prospective, randomized, double-blind, controlled trial. Fifty-four patients who met the inclusion criteria (older than 18 years old; with high cariogenic risk determined by Cariogram softw...
Marginal adaptation of micro-repaired RBC restorations were seen in patients with a high risk of caries using flowable resin composite or resin-based sealants. There were differences (P < 0.001) when ...
Micro-repair of RBC restorations resulted in clinical deterioration of marginal adaptation and marginal staining. Nano-filled flowable resin composites were sealed on defective restorations; 3 and 4 F...
Micro-repair with RBS does not seem to be an effective treatment to prevent secondary caries....
Photoactivating dental resin composites have been the most prevailing material for repairing dental defects in various clinical scenarios due to their multiple advantages. However, compared to other r...
The aim of this scoping review was to analyze the available evidence on the preheating process and its effects on physicochemical properties of composite resins....
A systematic search was performed in August 2021 using PubMed/Medline, Embase, Scopus, and ISI Web of Science databases and gray literature without language or date restriction. Inclusion criteria wer...
In total, 104 studies were found from which 39 were included. The most used composite resin was Filtek Z350 XT (3 M/ESPE), preheated at 68°C in a Calset device (AdDent Inc., Danbury, CT, USA) for 5 or...
The parameters used for preheating composite resins are heterogeneous. Preheating decreased viscosity, increased the conversion degree and microhardness of composite resins, and improved the marginal ...
The analysis of evidence showed a high heterogeneity among preheating protocols. Preheating may benefit the handling and physicochemical properties of composite resins....
To map the existing evidence regarding the masking ability of resin composites....
The literature search was conducted electronically, based on the PRISMA Extension for Scoping Reviews-online protocol at https://osf.io/m2h67/ with no language or time restrictions. Two independent re...
Acceptable masking of C4 shade background is achieved with one layer of opaque shade composite at least 0.5 mm-thick or by different combinations of the layering technique, with a final thickness of 1...
The thickness of the resin composite layer required to achieve adequate masking is variable and depends on the translucency/opacity of the tested resin composites and the background shade....
Albumin is a salivary enzyme capable of cleaving ester linkages and catalyzing degradation of resin-based dental materials. However, the effect of concentration-dependent esterolytic action on composi...
The purpose of this study was to evaluate whether artificial saliva formulations with different concentrations of albumin affected the surface roughness, flexural strength and microhardness of a compo...
Specimens (25x2x2mm) of a nanofilled composite (Filtek Z350XT, 3M/ESPE) were prepared and analyzed for average surface roughness (Ra/pm). The specimens were then allocated to 6 groups (n=30), to be tr...
Although Ra increased (p < 0.001) and FS decreased (p < 0.001) from 24 hours to 180 days of storage, the albumin concentration did not significantly affectRa (p = 0.168), FS (p = 0.477) or KH (p = 0.3...
The esterolytic action of albumin did not increase the artificial-saliva-induced hydrolytic degradation of the composite resin....
Pollution arises from all human activity and the provision of oral healthcare using resin-based composite restorative materials (RBCs) should be considered. This paper aims to provide a comprehensive ...
The objective of this...
Composite resin (Filtek Z250) was thermocycled to represent aged composite resin to be repaired. New composite resin was placed over the aged substrate after surface conditioning: NC (negative control...
The repair bond strength between the old and new composite resins was material-dependent. Universal adhesives significantly improved the repair bond strength (...
Universal adhesives in both etch-and-rinse and self-etch modes outperformed the conventional 3-step etch-and-rinse and 2-step self-etch adhesive systems in terms of resin repair bond strength....
To compare the clinical performance (retention, secondary caries, marginal adaptation, marginal discoloration, and postoperative hypersensitivity) of self-adhesive flowable composite resins (SAFCs) an...
Randomized controlled trials (RCTs) of SAFCs versus FCs with a follow-up length of at least one year. No restrictions were placed on language or publication date....
Five databases, including PubMed, Embase, Web of Science, Scopus, and the Cochrane Central Register of Controlled Trials, were searched manually by browsing ten related journals. On 14 June 2023, all ...
Five RCTs with 138 participants were included. Cochrane's risk of bias tool (2.0) was implemented in selected studies, and the GRADE tool was utilised to evaluate the evidence quality. To summarize th...
According to the modified United States Public Health Service Evaluation (USPHS) criteria, there was no discernible difference between the groups during the two-year follow-up period (maximum follow-u...
SAFCs exhibited clinical performance comparable to that of FCs in occlusal cavities. Further high-quality clinical trials are needed to provide solid evidence to support the clinical application of SA...
PROSPERO (CRD42022374983)....
Warming composite resin before insertion to reduce viscosity is advocated for improving adaptation and reducing voids. This study evaluated how prewarming altered porosities, adaptation, and strength....