questionsmedicales.fr
Phénomènes physiologiques de l'appareil locomoteur et du système nerveux
Phénomènes physiologiques du système nerveux
Transmission synaptique
Transmission synaptique : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Dysfonctionnement synaptique
Électrophysiologie
IRM fonctionnelle
Électroencéphalogramme
Troubles de la mémoire
Convulsions
Microscopie à fluorescence
Transmission synaptique
Synaptophysine
Marqueurs biologiques
Symptômes
5
Troubles cognitifs
Spasmes musculaires
Dépression
Plasticité synaptique
Troubles de l'humeur
Neurotransmetteurs
Tremblements
Troubles de la coordination
Fatigue chronique
Transmission synaptique
Prévention
5
Mode de vie sain
Alimentation équilibrée
Stress chronique
Plasticité synaptique
Exercice physique
Santé neuronale
Sommeil
Régénération synaptique
Méditation
Plasticité synaptique
Traitements
5
Antidépresseurs
Nootropiques
Thérapie cognitive
Plasticité synaptique
Suppléments alimentaires
Oméga-3
Stimulation cérébrale
Connexions synaptiques
Thérapies comportementales
Plasticité synaptique
Complications
5
Troubles neurologiques
Crises
Maladies neurodégénératives
Alzheimer
Troubles de l'apprentissage
Transmission synaptique
Troubles psychotiques
Neurotransmetteurs
Schizophrénie
Dysfonctionnements synaptiques
Facteurs de risque
5
Tabagisme
Fonction synaptique
Maladies chroniques
Diabète
Inactivité physique
Santé cognitive
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"name": "Comment diagnostiquer un dysfonctionnement synaptique ?",
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"text": "Des tests électrophysiologiques et des imageries cérébrales peuvent être utilisés."
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{
"@type": "Question",
"name": "Quels examens sont utilisés pour évaluer la transmission synaptique ?",
"position": 2,
"acceptedAnswer": {
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"text": "L'IRM fonctionnelle et l'électroencéphalogramme (EEG) sont couramment utilisés."
}
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"@type": "Question",
"name": "Quels symptômes indiquent un problème de transmission synaptique ?",
"position": 3,
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"text": "Des troubles de la mémoire, des convulsions ou des changements de comportement peuvent survenir."
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"name": "Peut-on mesurer la transmission synaptique directement ?",
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"text": "Oui, des techniques comme la microscopie à fluorescence permettent d'observer la transmission."
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"name": "Quels marqueurs biologiques sont associés à la transmission synaptique ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des protéines comme la synaptophysine peuvent servir de marqueurs pour la synapse."
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"@type": "Question",
"name": "Quels symptômes sont liés à une transmission synaptique altérée ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des symptômes incluent des troubles cognitifs, des spasmes musculaires et des douleurs."
}
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"@type": "Question",
"name": "Comment la dépression affecte-t-elle la transmission synaptique ?",
"position": 7,
"acceptedAnswer": {
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"text": "La dépression peut réduire la plasticité synaptique, affectant la communication neuronale."
}
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"@type": "Question",
"name": "Les troubles de l'humeur sont-ils liés à la transmission synaptique ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des déséquilibres dans les neurotransmetteurs peuvent provoquer des troubles de l'humeur."
}
},
{
"@type": "Question",
"name": "Quels signes neurologiques peuvent indiquer un problème synaptique ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des signes incluent des tremblements, des troubles de la coordination et des réflexes anormaux."
}
},
{
"@type": "Question",
"name": "La fatigue chronique est-elle liée à la transmission synaptique ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des anomalies dans la transmission synaptique peuvent contribuer à la fatigue chronique."
}
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{
"@type": "Question",
"name": "Comment prévenir les troubles de la transmission synaptique ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un mode de vie sain, incluant une alimentation équilibrée et de l'exercice, est essentiel."
}
},
{
"@type": "Question",
"name": "Le stress affecte-t-il la transmission synaptique ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le stress chronique peut altérer la transmission synaptique et la plasticité."
}
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{
"@type": "Question",
"name": "L'exercice physique influence-t-il la transmission synaptique ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'exercice régulier favorise la santé neuronale et la transmission synaptique."
}
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{
"@type": "Question",
"name": "Les habitudes de sommeil affectent-elles la transmission synaptique ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, un sommeil de qualité est crucial pour la régénération synaptique et cognitive."
}
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{
"@type": "Question",
"name": "La méditation peut-elle améliorer la transmission synaptique ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la méditation peut augmenter la plasticité synaptique et réduire le stress."
}
},
{
"@type": "Question",
"name": "Quels traitements existent pour améliorer la transmission synaptique ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des médicaments comme les antidépresseurs et les nootropiques peuvent être utilisés."
}
},
{
"@type": "Question",
"name": "La thérapie cognitive peut-elle aider la transmission synaptique ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle peut améliorer la plasticité synaptique et la fonction cognitive."
}
},
{
"@type": "Question",
"name": "Les suppléments alimentaires influencent-ils la transmission synaptique ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certains suppléments comme les oméga-3 peuvent favoriser la santé synaptique."
}
},
{
"@type": "Question",
"name": "Comment la stimulation cérébrale affecte-t-elle la transmission synaptique ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "La stimulation cérébrale peut renforcer les connexions synaptiques et améliorer la fonction."
}
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{
"@type": "Question",
"name": "Les thérapies comportementales aident-elles la transmission synaptique ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elles peuvent améliorer les interactions neuronales et la plasticité synaptique."
}
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{
"@type": "Question",
"name": "Quelles complications peuvent résulter d'une transmission synaptique altérée ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications incluent des troubles neurologiques, des troubles de l'humeur et des crises."
}
},
{
"@type": "Question",
"name": "Les maladies neurodégénératives affectent-elles la transmission synaptique ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des maladies comme Alzheimer altèrent gravement la transmission synaptique."
}
},
{
"@type": "Question",
"name": "Comment les troubles de l'apprentissage sont-ils liés à la transmission synaptique ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des anomalies dans la transmission synaptique peuvent entraîner des difficultés d'apprentissage."
}
},
{
"@type": "Question",
"name": "Les troubles psychotiques sont-ils liés à la transmission synaptique ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des déséquilibres dans les neurotransmetteurs peuvent contribuer aux troubles psychotiques."
}
},
{
"@type": "Question",
"name": "La schizophrénie affecte-t-elle la transmission synaptique ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la schizophrénie est associée à des dysfonctionnements dans la transmission synaptique."
}
},
{
"@type": "Question",
"name": "Quels facteurs de risque influencent la transmission synaptique ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des facteurs comme l'âge, le stress et la génétique peuvent influencer la transmission."
}
},
{
"@type": "Question",
"name": "L'alimentation joue-t-elle un rôle dans la transmission synaptique ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une alimentation riche en nutriments favorise une transmission synaptique saine."
}
},
{
"@type": "Question",
"name": "Le tabagisme affecte-t-il la transmission synaptique ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le tabagisme peut altérer la fonction synaptique et augmenter le risque de troubles."
}
},
{
"@type": "Question",
"name": "Les maladies chroniques influencent-elles la transmission synaptique ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des maladies comme le diabète peuvent affecter la transmission synaptique."
}
},
{
"@type": "Question",
"name": "Le manque d'activité physique est-il un facteur de risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'inactivité physique peut nuire à la santé synaptique et cognitive."
}
}
]
}
]
}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 23/02/2025
Contenu vérifié selon les dernières recommandations médicales
2 publications dans cette catégorie
Affiliations :
Neuroscience Research Center, Charité-Universitätsmedizin Berlin, Berlin, Germany. dietmar.schmitz@charite.de.
Berlin Institute of Health, 10178, Berlin, Germany. dietmar.schmitz@charite.de.
German Center for Neurodegenerative Diseases (DZNE), 10117, Berlin, Germany. dietmar.schmitz@charite.de.
Cluster of Excellence NeuroCure, 10117, Berlin, Germany. dietmar.schmitz@charite.de.
Einstein Center for Neurosciences Berlin, 10117, Berlin, Germany. dietmar.schmitz@charite.de.
Publications dans "Transmission synaptique" :
2 publications dans cette catégorie
Affiliations :
Department of Basic Neurosciences, Medical Faculty, University of Geneva, CH-1211 Geneva, Switzerland. christian.luscher@unige.ch.
Clinic of Neurology, Department of Clinical Neurosciences, Geneva University Hospital, CH-1211 Geneva, Switzerland.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Nanobiology Institute and Department of Cell Biology, Yale University, New Haven, CT, USA.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Nanobiology Institute and Department of Cell Biology, Yale University, New Haven, CT, USA.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Nanobiology Institute and Department of Cell Biology, Yale University, New Haven, CT, USA.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Nanobiology Institute and Department of Cell Biology, Yale University, New Haven, CT, USA.
Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, Paris, France.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Physics, University of California, San Diego, La Jolla, United States.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Physics, University of California, San Diego, La Jolla, United States.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Mathematics and Statistics, Université Laval, Québec City, QC, Canada.
Department of Psychiatry and Neuroscience, Université Laval, Québec City, QC, Canada.
CERVO Brain Research Centre, Québec City, QC, Canada.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Physics, Université Laval, Québec City, QC, Canada.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Psychiatry and Neuroscience, Université Laval, Québec City, QC, Canada.
CERVO Brain Research Centre, Québec City, QC, Canada.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Mathematics and Statistics, Université Laval, Québec City, QC, Canada.
CERVO Brain Research Centre, Québec City, QC, Canada.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Pharmacology, School of Medicine, Vanderbilt University, Nashville, TN, 37240-7933, USA. Electronic address: natali.chanaday@vanderbilt.edu.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Pharmacology, School of Medicine, Vanderbilt University, Nashville, TN, 37240-7933, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, 37240-7933, USA. Electronic address: ege.kavalali@vanderbilt.edu.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Neurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, 111 TW Alexander Dr., P.O. Box 12233, Mail Drop F2-08, Research Triangle Park, NC, 27709, USA.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Neurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, 111 TW Alexander Dr., P.O. Box 12233, Mail Drop F2-08, Research Triangle Park, NC, 27709, USA. yakel@niehs.nih.gov.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Neuroscience, UT Southwestern Medical Center, Dallas, TX, USA.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Department of Neuroscience, UT Southwestern Medical Center, Dallas, TX, USA. Electronic address: ryan.hibbs@utsouthwestern.edu.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
Laboratorio de Neurofisiología del desarrollo y la neurodegeneración, Unidad de Investigación en Biomedicina, Facultad de Estudios Superiores, Iztacala, Universidad Nacional Autónoma de México, Los Reyes Iztacala, México. Electronic address: aehe67@gmail.com.
Publications dans "Transmission synaptique" :
1 publication dans cette catégorie
Affiliations :
School of Advanced Science and Engineering, Department of Electrical Engineering and Biosciences, Waseda University, Tokyo, Japan.
Department of Neurophysiology, Keio University School of Medicine, Tokyo, Japan.
Japan Science and Technology Agency, PRESTO, Kawaguchi, Saitama, Japan.
Laboratory for Developmental Neurobiology, RIKEN Center for Brain Science, Wako, Japan.
Publications dans "Transmission synaptique" :
Obsessive-compulsive disorder (OCD) and major depressive disorder (MDD) both showed cognitive impairment, and the altered neurometabolic may associate with cognitive impairment. However, there are lim...
A total of 64 unmedicated patients (32 OCD and 32 MDD), and 33 healthy controls (HC) were included to conduct WM assessment comprising Digit Span Test (DST), 2-back task and Stroop Color and Word Test...
Compared with HC, both OCD and MDD patients exhibited a lower accuracy rate in the 2-back task, and only MDD patients performed worse in DST scores and longer reaction times in SCWT (all p < 0.05). Bo...
Both OCD and MDD showed WM impairment and neurometabolic alterations in PFC. Besides, MDD performed more severe and broader WM impairment compared to OCD. Moreover, the dysfunction of PFC may underlie...
The present study aims to examine whether declarative memory dysfunction relates to impaired core memory mechanisms or attentional and executive dysfunction in idiopathic REM Sleep Behavior Disorder (...
In this observational, cross-sectional study, were enrolled 82 individuals with the diagnosis of iRBD according to the International Classification of Sleep Disorders and 49-matched healthy controls f...
We used Bayesian multivariate generalized linear model analysis to evaluate the effect of iRBD on memory performance controlled for effects of age and sex. Individuals with iRBD displayed worse memory...
In iRBD, we replicated findings of reduced free recall based on inefficient retrieval (retrieval deficit), which was small in terms of effect size. Importantly, the memory profile across measures does...
Childhood trauma is commonly experienced by individuals diagnosed with bipolar disorder (BP). In BP, childhood trauma is related to a more severe clinical course, but its association with cognition re...
This study evaluated 405 adult participants diagnosed with BP and 136 controls. Participants completed the Childhood Trauma Questionnaire and a comprehensive neuropsychological battery. High versus lo...
There were significant differences among the three groups, F(16, 968) = 4.05, p < .001, Wilks' Λ = 0.88, partial η...
Analyses of factor score do not address which aspect of the memory process is affected and biomarkers may help guide interventions addressing underlying biological process....
Adults diagnosed with BP with higher childhood trauma have worse memory functioning, beyond the lower childhood trauma BP group, highlighting the importance of understanding the long-term cognitive ou...
Visual memory impairment is one of the most commonly complained symptoms in patients with major depressive disorder (MDD). Pattern glare is also a distorted visual phenomenon that puzzles patients wit...
Sixty-two patients with MDD and forty-nine age-, sex- and education level-matched healthy controls (HCs) were included in this study. The Pattern Recognition Memory (PRM) test and the Brief Visual Mem...
Patients with MDD scored lower on the PRM-PCi, BVMT-R1, BVMT-R2, BVMT-R3, and BVMT-Rt and higher on the PRM-MCLd than HCs (all p < 0.05). Pattern glare scores for MDD patients were higher with mid-SF ...
The present study showed that visual memory and pattern glare are disrupted in MDD. Visual memory may be associated with pattern glare and needs to be studied in future work....
Past studies identified a link between weight loss and dementia, but lacked consistent conclusions. We sought to establish this link by examining the weight change profiles before and after dementia d...
Using data from the Health and Retirement Study (1996-2020), we examined 13,123 participants. We conducted a nested case-control analysis to assess differences in biennial weight change profile while ...
Participants with a memory disorder lost weight (-0.63%) biennially, whereas those without a diagnosis did not (+0.013%,...
We observe that weight loss in dementia is a physiological process independent of genetic factors associated with BMI and longevity. Pre-dementia weight loss may be an important prognostic criterion t...
Working memory (WM) deficits are recognized as serious cognitive impairment in patients with major depressive disorder (MDD). This review aims to clarify the effects of impaired WM function in patient...
Dysregulated consolidation of emotional memories is a core feature of posttraumatic stress disorder (PTSD). Brain Derived Neurotrophic Factor (BDNF) influences synaptic plasticity and emotional memory...
The objective of this review was to identify, critically appraise, and synthesize the available evidence on the experiences of people with progressive memory disorders who are involved in non-pharmaco...
Non-pharmacological interventions are widely used to improve the quality of life and general well-being of people with progressive memory disorders. While many intervention effects have been studied, ...
The review included studies of people of all ages with progressive memory disorders who described their experiences participating in professionally delivered non-pharmacological interventions. Interve...
The search strategy used a three-step approach and sought to locate both published and unpublished studies. Key databases included MEDLINE (PubMed), CINAHL (EBSCO), Medic, Scopus (Elsevier), and PsycA...
Forty-six studies were included in the review. The study designs included qualitative descriptions (n = 31), mixed methods (n = 8), grounded theory (n = 5), and ethnography (n = 2). The total number o...
People with progressive memory disorders welcome non-pharmacological interventions. It is noteworthy that, regardless of what the interventions entailed, the participants experienced strengthened self...
Bipolar disorder (BD) and major depressive disorder (MDD) are associated with cognitive and functional impairment. Cognitive impairment is often associated with dorsal prefrontal cortex (dPFC) hypo-ac...
Heterogeneity has been a persistent challenge in understanding Schizophrenia Spectrum Disorders (SSD). Traditional case-control comparisons often show variable results, and may not map well onto indiv...