questionsmedicales.fr
Facteurs biologiques
Antigènes
Superantigènes
Superantigènes : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Infections bactériennes
Anticorps
Tests diagnostiques
Culture bactérienne
Symptômes
Diagnostic différentiel
Allergies
Tests d'allergie
Symptômes
5
Choc toxique
Éruption cutanée
Symptômes neurologiques
Céphalée
Souches bactériennes
Variabilité des symptômes
Temps d'apparition
Exposition
Prévention
5
Prévention des infections
Hygiène
Sécurité alimentaire
Contamination
Mesures d'hygiène
Pratiques préventives
Milieu hospitalier
Désinfection
Traitements
5
Corticostéroïdes
Inflammation
Hospitalisation
Choc toxique
Traitement symptomatique
Antipyrétiques
Traitement spécifique
Superantigènes
Complications
5
Lésions organiques
Insuffisance rénale
Récidive
Facteurs de risque
Immunodépression
Complications
Développement rapide
Complications
Facteurs de risque
5
Immunodépression
Interventions chirurgicales
Enfants
Système immunitaire
Antécédents médicaux
Infections
Conditions de vie
Insalubrité
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"@type": "Question",
"name": "Comment diagnostique-t-on une infection par superantigènes ?",
"position": 1,
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"@type": "Answer",
"text": "Le diagnostic repose sur des tests sérologiques et l'identification des toxines."
}
},
{
"@type": "Question",
"name": "Quels tests sont utilisés pour détecter les superantigènes ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des tests ELISA et des cultures bactériennes peuvent être utilisés."
}
},
{
"@type": "Question",
"name": "Les symptômes aident-ils au diagnostic des superantigènes ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les symptômes cliniques orientent le diagnostic, mais ne sont pas spécifiques."
}
},
{
"@type": "Question",
"name": "Peut-on identifier des superantigènes par PCR ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la PCR peut détecter les gènes codant pour les superantigènes."
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"@type": "Question",
"name": "Les tests d'allergie sont-ils utiles pour les superantigènes ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, les tests d'allergie ne sont pas pertinents pour les superantigènes."
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{
"@type": "Question",
"name": "Quels sont les symptômes d'une intoxication par superantigènes ?",
"position": 6,
"acceptedAnswer": {
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"text": "Les symptômes incluent fièvre, éruption cutanée, et choc toxique."
}
},
{
"@type": "Question",
"name": "Les superantigènes provoquent-ils des douleurs ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des douleurs musculaires et articulaires peuvent survenir."
}
},
{
"@type": "Question",
"name": "Y a-t-il des symptômes neurologiques associés ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des symptômes neurologiques comme des maux de tête peuvent apparaître."
}
},
{
"@type": "Question",
"name": "Les symptômes varient-ils selon le type de superantigène ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les symptômes peuvent varier selon la souche bactérienne impliquée."
}
},
{
"@type": "Question",
"name": "Les symptômes sont-ils immédiats après exposition ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes peuvent apparaître rapidement, souvent dans les 24 heures."
}
},
{
"@type": "Question",
"name": "Comment prévenir les infections par superantigènes ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "La prévention passe par une bonne hygiène et des pratiques alimentaires sûres."
}
},
{
"@type": "Question",
"name": "Les vaccins peuvent-ils prévenir les infections par superantigènes ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Actuellement, il n'existe pas de vaccins spécifiques contre les superantigènes."
}
},
{
"@type": "Question",
"name": "Faut-il éviter certains aliments pour prévenir les superantigènes ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, éviter les aliments mal cuits ou contaminés peut réduire le risque."
}
},
{
"@type": "Question",
"name": "Les mesures d'hygiène sont-elles suffisantes ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elles sont essentielles, mais doivent être combinées avec d'autres pratiques préventives."
}
},
{
"@type": "Question",
"name": "Les superantigènes peuvent-ils être évités en milieu hospitalier ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des protocoles stricts d'hygiène et de désinfection aident à prévenir leur propagation."
}
},
{
"@type": "Question",
"name": "Quel est le traitement principal pour les infections par superantigènes ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le traitement principal est l'administration d'antibiotiques appropriés."
}
},
{
"@type": "Question",
"name": "Les corticostéroïdes sont-ils efficaces contre les superantigènes ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les corticostéroïdes peuvent réduire l'inflammation mais ne traitent pas l'infection."
}
},
{
"@type": "Question",
"name": "Faut-il hospitaliser les patients atteints de superantigènes ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'hospitalisation peut être nécessaire en cas de choc toxique sévère."
}
},
{
"@type": "Question",
"name": "Les traitements symptomatiques sont-ils recommandés ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des traitements symptomatiques comme des antipyrétiques peuvent être utiles."
}
},
{
"@type": "Question",
"name": "Y a-t-il des traitements spécifiques pour les superantigènes ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Actuellement, il n'existe pas de traitement spécifique ciblant les superantigènes."
}
},
{
"@type": "Question",
"name": "Quelles sont les complications possibles des infections par superantigènes ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications incluent le choc toxique, la défaillance multiviscérale et la septicémie."
}
},
{
"@type": "Question",
"name": "Les superantigènes peuvent-ils causer des lésions organiques ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, ils peuvent entraîner des lésions aux reins, au foie et aux poumons."
}
},
{
"@type": "Question",
"name": "Y a-t-il un risque de récidive après une infection par superantigènes ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les infections peuvent récidiver, surtout si les facteurs de risque persistent."
}
},
{
"@type": "Question",
"name": "Les complications sont-elles plus fréquentes chez certains patients ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les patients immunodéprimés sont plus à risque de complications graves."
}
},
{
"@type": "Question",
"name": "Les complications peuvent-elles survenir rapidement ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certaines complications peuvent se développer rapidement après l'infection."
}
},
{
"@type": "Question",
"name": "Quels sont les principaux facteurs de risque pour les infections par superantigènes ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent l'immunodépression, les interventions chirurgicales et l'hygiène insuffisante."
}
},
{
"@type": "Question",
"name": "Les enfants sont-ils plus à risque d'infections par superantigènes ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les enfants peuvent être plus vulnérables en raison de leur système immunitaire immature."
}
},
{
"@type": "Question",
"name": "Les personnes âgées sont-elles à risque accru ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les personnes âgées ont un risque accru en raison de la diminution de l'immunité."
}
},
{
"@type": "Question",
"name": "Les antécédents d'infections augmentent-ils le risque ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des antécédents d'infections peuvent prédisposer à de nouvelles infections."
}
},
{
"@type": "Question",
"name": "Les conditions de vie peuvent-elles influencer le risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des conditions de vie insalubres augmentent le risque d'infections par superantigènes."
}
}
]
}
]
}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 20/03/2025
Contenu vérifié selon les dernières recommandations médicales
6 publications dans cette catégorie
Affiliations :
Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261.
6 publications dans cette catégorie
Affiliations :
Department of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA 90048.
Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA 90048.
6 publications dans cette catégorie
Affiliations :
Department of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA 90048.
Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA 90048.
6 publications dans cette catégorie
Affiliations :
Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261.
5 publications dans cette catégorie
Affiliations :
Antibody & Product Development Lab, Experimental Drug Development Centre - Bioinformatics Institute (EDDC-BII), Agency for Science Technology and Research (ASTAR), Singapore, Singapore.
James Cook University, Singapore, Singapore.
Publications dans "Superantigènes" :
5 publications dans cette catégorie
Affiliations :
Department of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
Biomedical Sciences, Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
Publications dans "Superantigènes" :
4 publications dans cette catégorie
Affiliations :
Department of Microbiology and Immunology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, Ontario, Canada.
Lawson Health Research Institute, London, Ontario, Canada.
Publications dans "Superantigènes" :
4 publications dans cette catégorie
Affiliations :
Antibody & Product Development Laboratory, Experimental Drug Development Centre-Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore 138672, Singapore.
Newcastle Research and Innovation Institute (NewRIIS), Singapore 609607, Singapore.
Publications dans "Superantigènes" :
4 publications dans cette catégorie
Affiliations :
Antibody & Product Development Laboratory, Experimental Drug Development Centre-Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore 138672, Singapore.
Publications dans "Superantigènes" :
4 publications dans cette catégorie
Affiliations :
Department of Molecular and Cellular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-Dori, Mizuho-ku, Nagoya, 467-8603, Japan. Electronic address: s-itoh@phar.nagoya-cu.ac.jp.
Publications dans "Superantigènes" :
4 publications dans cette catégorie
Affiliations :
Department of Molecular and Cellular Health Sciences, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-Dori, Mizuho-ku, Nagoya, 467-8603, Japan.
Publications dans "Superantigènes" :
3 publications dans cette catégorie
Affiliations :
Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.
Publications dans "Superantigènes" :
3 publications dans cette catégorie
Affiliations :
Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore.
Publications dans "Superantigènes" :
3 publications dans cette catégorie
Affiliations :
Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore.
Publications dans "Superantigènes" :
3 publications dans cette catégorie
Affiliations :
Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore.
Publications dans "Superantigènes" :
3 publications dans cette catégorie
Affiliations :
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.
Key Laboratory of Superantigen Research, Shenyang Bureau of Science and Technology, Shenyang, China.
Publications dans "Superantigènes" :
3 publications dans cette catégorie
Affiliations :
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.
Key Laboratory of Superantigen Research, Shenyang Bureau of Science and Technology, Shenyang, China.
Publications dans "Superantigènes" :
3 publications dans cette catégorie
Affiliations :
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.
Key Laboratory of Superantigen Research, Shenyang Bureau of Science and Technology, Shenyang, China.
Publications dans "Superantigènes" :
3 publications dans cette catégorie
Affiliations :
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.
Key Laboratory of Superantigen Research, Shenyang Bureau of Science and Technology, Shenyang, China.
Publications dans "Superantigènes" :
2 publications dans cette catégorie
Affiliations :
Protein Engineering Unit, Life and Science Research Department, Anti-Doping Lab-Qatar (ADLQ), Doha, Qatar; Drug Design Group, Department of Pharmacy, University of Groningen, Groningen, the Netherlands.
Publications dans "Superantigènes" :
This study was designed to estimate the burden of blindness and vision impairment in school children, and to determine the proportion of students meeting the visual acuity (VA) demand for their classr...
Dynamic visual acuity (DVA) is crucial for the perception of moving objects. While traditional DVA assessment tools predominantly focus on horizontal movements, the evaluation of vertical DVA remains ...
To investigate the early visual acuity (VA) changes that occur after trabeculectomy and their reversal with recovery....
Two hundred ninety-two eyes of 292 patients after initial trabeculectomy as a standalone procedure fulfilling the following conditions were included: 1) patients with a postoperative follow-up of at l...
The mean IOPs (mmHg) after trabeculectomy were significantly lower than preoperatively during the entire period (P < 0.0001). The mean corrected VA for all patients was 0.06 ± 0.17, 0.24 ± 0.38, 0.19 ...
The frequency of serious vision loss was 4.45% for two or more levels of vision loss, and early postoperative VA changes after trabeculectomy may not be reversed even 3 months later. VA loss is influe...
Visual perception is limited by spatial resolution, the ability to discriminate fine details. Spatial resolution not only declines with eccentricity but also differs for polar angle locations around t...
Standard-of-care assessment for children with amblyopia includes measuring amblyopic eye best-corrected visual acuity (AE BCVA) with the fellow eye occluded. By definition, this abolishes the interocu...
Cross-sectional study....
Dichoptic and monocular AE BCVA of children aged 6-12 years (42 with amblyopia, 24 with recovered normal AE BCVA, 30 control) were measured. Stereoacuity, suppression, eye-hand coordination, and readi...
Overall, 81% of amblyopic children had worse dichoptic than monocular AE BCVA (mean difference=0.15±0.11 logMAR; P < .0001), and 71% of children with recovered normal AE BCVA had worse dichoptic than ...
Dichoptic AE BCVA deficits were worse than monocular AE BCVA deficits and were associated with reduced stereoacuity and suppression, consistent with the hypothesis that binocular dysfunction plays a r...
Evaluate the differences between clinical visual acuity (VA) as recorded in medical records and electronic Early Treatment Diabetic Retinopathy Study (eETDRS) protocol VA measurements and factors affe...
Retrospective chart review....
Study and fellow eyes of participants enrolled in DRCR Retina Network Protocols AC and AE (diabetic macular edema), and W (nonproliferative diabetic retinopathy) with clinical VA recorded within 3 mon...
Differences and their association with patient and ocular factors were evaluated using linear mixed models with random effects for correlations within sites and participants....
Difference between VA letter scores measured by eETDRS during a study visit versus measured by Snellen during a regular clinical visit (Snellen fraction converted to eETDRS)....
Data from 1016 eyes (511 participants) across 74 sites were analyzed. The mean VA measurements were 68.6 letters (Snellen equivalent 20/50) at the clinical visit and 76.3 letters (Snellen equivalent 2...
On average, clinical Snellen VA is 1 to 2 lines worse than eETDRS protocol refraction and VA testing, which may partly explain why clinical practice does not always replicate clinical trial results. E...
Proprietary or commercial disclosure may be found after the references....
Visual acuity declines with age, and disease-related visual acuity changes vary. We evaluated factors affecting visual acuity and age-related visual acuity in diseases associated with reduced visual a...
Lighting conditions significantly influence visual acuity (VA), visual function, and quality of life. Previous research highlighted a correlation between luminance and VA but left a gap in understandi...
This study aimed to investigate the influence of both central and surrounding luminance on VA through distance VA measurements....
A dual-component lighting system was utilized, comprising a self-illuminated ETDRS chart and a skyLED system for consistent surrounding illumination. Two experimental setups were conducted: the first ...
Sixty-six participants with refractive errors between 0.0 D and -2.75 D were tested under various lighting conditions. Both uncorrected refractive error (URE) and corrected refractive error (CRE) eyes...
Paired t-tests were used to evaluate the statistical significance of differences in VA scores....
Experiment 1 demonstrated a significant increase in VA scores, with mean improvements of -0.120 LogMAR for URE eyes and -0.073 LogMAR for CRE eyes as chart luminance increased from 26 cd/m² to 153 cd/...
This study emphasizes the significant impact of both central and peripheral luminance on VA. The introduction of the skyLED lighting system underlines the importance of optimal lighting for visual per...
Silicone oil is an established intraocular surgical aid, which enables the treatment of the most complex starting situations but no other alternative has been found; however, the available data indica...
Human sensitivity to visual input often scales with the magnitude of evoked responses in the brain. Here, we demonstrate an exception. We record electroencephalography (EEG) while people attempt to re...