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Système nerveux
Système nerveux central
Encéphale
Prosencéphale
Télencéphale
Cerveau
Cortex cérébral
Cortex sensorimoteur
Cortex visuel
Cortex visuel : Questions médicales fréquentes
Termes MeSH sélectionnés :
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"name": "Comment diagnostiquer une lésion du cortex visuel ?",
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{
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"name": "Quels tests évaluent la fonction visuelle ?",
"position": 2,
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"@type": "Question",
"name": "Quels signes indiquent une dysfonction du cortex visuel ?",
"position": 3,
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"name": "Quel rôle joue l'électroencéphalogramme (EEG) ?",
"position": 4,
"acceptedAnswer": {
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{
"@type": "Question",
"name": "Comment évaluer la vision des couleurs ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
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}
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{
"@type": "Question",
"name": "Quels sont les symptômes d'une lésion du cortex visuel ?",
"position": 6,
"acceptedAnswer": {
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"@type": "Question",
"name": "Comment se manifeste l'agnosie visuelle ?",
"position": 7,
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"name": "Qu'est-ce que l'hémianopsie ?",
"position": 8,
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{
"@type": "Question",
"name": "Quels troubles peuvent affecter la perception des mouvements ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des troubles comme la simultagnosie peuvent affecter la perception des mouvements et des objets."
}
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{
"@type": "Question",
"name": "Quels symptômes indiquent une migraine occulaire ?",
"position": 10,
"acceptedAnswer": {
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"text": "Les symptômes incluent des troubles visuels temporaires, comme des éclairs lumineux ou des taches."
}
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{
"@type": "Question",
"name": "Comment prévenir les lésions cérébrales ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éviter les traumatismes crâniens, adopter un mode de vie sain et contrôler les maladies vasculaires."
}
},
{
"@type": "Question",
"name": "Quels examens réguliers sont recommandés ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des examens ophtalmologiques réguliers peuvent aider à détecter précocement des troubles visuels."
}
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{
"@type": "Question",
"name": "Comment réduire le risque de migraines ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éviter les déclencheurs connus, gérer le stress et maintenir une bonne hydratation peuvent aider."
}
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{
"@type": "Question",
"name": "Quels conseils pour protéger la santé oculaire ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Porter des lunettes de soleil, éviter les écrans excessifs et avoir une alimentation équilibrée."
}
},
{
"@type": "Question",
"name": "Comment gérer le stress pour prévenir les troubles visuels ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des techniques de relaxation comme le yoga et la méditation peuvent aider à réduire le stress."
}
},
{
"@type": "Question",
"name": "Quels traitements existent pour les troubles visuels ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les traitements incluent la rééducation visuelle, la thérapie occupationnelle et parfois des médicaments."
}
},
{
"@type": "Question",
"name": "Comment traiter l'agnosie visuelle ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "La thérapie cognitive et des exercices de reconnaissance peuvent aider à traiter l'agnosie."
}
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{
"@type": "Question",
"name": "Quels médicaments peuvent aider les migraines visuelles ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des médicaments comme les triptans et les anti-inflammatoires peuvent soulager les migraines."
}
},
{
"@type": "Question",
"name": "Comment la rééducation visuelle fonctionne-t-elle ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "La rééducation visuelle utilise des exercices pour améliorer la perception et la reconnaissance visuelle."
}
},
{
"@type": "Question",
"name": "Quels sont les traitements pour l'hémianopsie ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des stratégies de compensation et des exercices de champ visuel peuvent aider à gérer l'hémianopsie."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir après une lésion du cortex visuel ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications incluent des troubles cognitifs, des problèmes de coordination et des difficultés d'apprentissage."
}
},
{
"@type": "Question",
"name": "Comment l'hémianopsie affecte-t-elle la vie quotidienne ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'hémianopsie peut compliquer la conduite, la lecture et d'autres activités nécessitant une vision complète."
}
},
{
"@type": "Question",
"name": "Quels risques sont associés à l'agnosie visuelle ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'agnosie peut entraîner des difficultés dans les interactions sociales et des problèmes d'autonomie."
}
},
{
"@type": "Question",
"name": "Quelles sont les conséquences des migraines fréquentes ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des migraines fréquentes peuvent entraîner des troubles de l'humeur, de l'anxiété et des absences au travail."
}
},
{
"@type": "Question",
"name": "Comment les troubles visuels peuvent-ils affecter l'éducation ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les troubles visuels peuvent nuire à l'apprentissage, nécessitant des adaptations scolaires spécifiques."
}
},
{
"@type": "Question",
"name": "Quels facteurs augmentent le risque de lésions cérébrales ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les traumatismes crâniens, les AVC et les maladies neurodégénératives augmentent le risque."
}
},
{
"@type": "Question",
"name": "Comment l'âge influence-t-il les troubles visuels ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le vieillissement peut entraîner une dégénérescence des cellules nerveuses et des troubles visuels."
}
},
{
"@type": "Question",
"name": "Quels rôles jouent les antécédents familiaux ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les antécédents familiaux de troubles neurologiques peuvent augmenter le risque de dysfonction visuelle."
}
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{
"@type": "Question",
"name": "Comment le diabète affecte-t-il la vision ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le diabète peut entraîner des complications oculaires comme la rétinopathie diabétique, affectant la vision."
}
},
{
"@type": "Question",
"name": "Quels comportements augmentent le risque de migraines ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le stress, le manque de sommeil et une mauvaise alimentation peuvent déclencher des migraines."
}
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Coumarin was first discovered in Tonka bean and then widely in other plants. Coumarin has an anticoagulant effect, and its derivative, warfarin, is a vitamin K analogue that inhibits the synthesis of ...
Light transmission aggregation (LTA) is used widely by the clinical and research communities. Although it is a gold standard, there is a lack of interlaboratory harmonization....
The primary objective was to assess whether sources of activators (mainly adenosine diphosphate [ADP], collagen, arachidonic acid, epinephrine, and thrombin receptor activating peptide6) and ristoceti...
An international multicenter study involving 28 laboratories in which we compared LTA results obtained with center-specific activators and a comparator that we supplied....
We report variability in the potency (P) of activators in comparison with the comparator. Thrombin receptor activating peptide 6 (P, 1.32-2.68), arachidonic acid (P, 0.87-1.43), and epinephrine (P, 0....
Based on these data, the establishment and adoption of simple standardization principles should mitigate variability due to activator sources. The observation of huge interindividual variability for c...
Isoquinoline alkaloids have multiple biological activities, which might be associated with positive pharmacological effects as well as negative adverse reactions. As bleeding was suggested to be a sid...
Arterial occlusion by thrombosis is the immediate cause of some strokes, heart attacks, and peripheral artery disease. Most prior studies assume that coagulation creates the thrombus. However, a contr...
Disintegrins are small peptides possessing a tripeptide motif capable of binding to integrins. These were first isolated from viper venoms and are now also found in many other hematophagous organisms....
Melatonin is known to inhibit platelet aggregation induced by arachidonic acid (AA). In the present study we investigated whether agomelatine (Ago), an antidepressant with agonist activity at melatoni...
Human platelets from healthy donors were used to test the in vitro effects of Ago in the presence of different platelet activators. We performed aggregation and adhesion assays, thromboxane B...
Our data revealed that different concentrations of Ago reduced AA- and collagen-induced human platelet aggregation in vitro. Ago also reduced AA-induced increase in thromboxane B...
The present data show that Ago suppresses human platelet aggregation and suggest that this antidepressant may have the potential to prevent atherothrombotic ischemic events by reducing thrombus format...
Fc receptors are involved in a variety of physiologically and disease-relevant responses. Among them, FcγRIIA (CD32a) is known for its activating functions in pathogen recognition and platelet biology...
Hemodynamics is crucial for the activation and aggregation of platelets in response to flow-induced shear. In this paper, a novel image-based computational model simulating blood flow through and arou...
Cold-stored platelets are currently under clinical evaluation and have been approved for limited clinical use in the United States. Most studies have focused on the haemostatic functionality of cold-s...
Two buffy-coat-derived platelet components were combined and split into two treatment arms: room temperature (RT)-stored (20-24°C) or refrigerated (cold-stored, 2-6°C). The concentration of select sol...
Cold-stored platelet components contained a lower supernatant concentration of C3a, RANTES and PF4. The abundance of surface-bound P-selectin and integrin α...
Our data highlight that cold storage changes the in vitro immune characteristics of platelets, including their sensitivity to bacterial-induced aggregation. Changes in these immune characteristics may...
Chronic lead exposure can generate pro-oxidative and pro-inflammatory conditions in the blood, related to high platelet activation and aggregation, altering cell functions. We studied ADP-stimulated a...