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"@type": "Question",
"name": "Comment l'optogénétique est-elle diagnostiquée ?",
"position": 1,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle est diagnostiquée par des techniques d'imagerie et des tests fonctionnels sur des cellules modifiées."
}
},
{
"@type": "Question",
"name": "Quels outils sont utilisés pour le diagnostic ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des microscopes à fluorescence et des systèmes de stimulation lumineuse sont utilisés."
}
},
{
"@type": "Question",
"name": "Peut-on diagnostiquer des troubles avec l'optogénétique ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle aide à étudier des troubles neurologiques en ciblant des neurones spécifiques."
}
},
{
"@type": "Question",
"name": "L'optogénétique nécessite-t-elle des échantillons biologiques ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des échantillons de tissus ou de cellules sont souvent nécessaires pour l'analyse."
}
},
{
"@type": "Question",
"name": "Quels types de cellules sont ciblées en optogénétique ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Principalement des neurones, mais aussi d'autres types cellulaires peuvent être modifiés."
}
},
{
"@type": "Question",
"name": "Quels symptômes l'optogénétique peut-elle aider à étudier ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle aide à étudier des symptômes comme l'anxiété, la dépression et les troubles moteurs."
}
},
{
"@type": "Question",
"name": "L'optogénétique peut-elle induire des symptômes ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, elle ne provoque pas de symptômes, mais elle permet d'observer des réponses neuronales."
}
},
{
"@type": "Question",
"name": "Comment l'optogénétique aide-t-elle à comprendre les symptômes ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle permet de manipuler des circuits neuronaux pour observer les effets sur le comportement."
}
},
{
"@type": "Question",
"name": "Peut-on mesurer des symptômes en temps réel ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'optogénétique permet des mesures en temps réel des réponses neuronales aux stimuli."
}
},
{
"@type": "Question",
"name": "Quels symptômes sont liés aux troubles traités par l'optogénétique ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des symptômes comme les convulsions, les troubles de l'humeur et les déficits cognitifs."
}
},
{
"@type": "Question",
"name": "L'optogénétique peut-elle aider à prévenir des maladies ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Indirectement, en permettant une meilleure compréhension des mécanismes de la maladie."
}
},
{
"@type": "Question",
"name": "Comment l'optogénétique contribue-t-elle à la recherche préventive ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle permet d'étudier les facteurs de risque et les mécanismes sous-jacents des maladies."
}
},
{
"@type": "Question",
"name": "Peut-on utiliser l'optogénétique pour des études épidémiologiques ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle peut être intégrée dans des études pour comprendre la propagation des maladies."
}
},
{
"@type": "Question",
"name": "Quels types de prévention sont envisagés avec l'optogénétique ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des stratégies de prévention basées sur la modulation des circuits neuronaux."
}
},
{
"@type": "Question",
"name": "L'optogénétique peut-elle aider à identifier des biomarqueurs ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle peut aider à identifier des biomarqueurs pour des maladies neurologiques."
}
},
{
"@type": "Question",
"name": "L'optogénétique est-elle utilisée comme traitement ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle est principalement utilisée pour la recherche, mais a un potentiel thérapeutique."
}
},
{
"@type": "Question",
"name": "Quels types de maladies pourraient bénéficier de l'optogénétique ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des maladies comme la maladie de Parkinson, l'épilepsie et les troubles de l'humeur."
}
},
{
"@type": "Question",
"name": "Comment l'optogénétique est-elle administrée ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle est administrée par l'insertion de gènes sensibles à la lumière dans des cellules cibles."
}
},
{
"@type": "Question",
"name": "Quels sont les résultats attendus des traitements optogénétiques ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Amélioration des symptômes neurologiques et modulation des circuits neuronaux."
}
},
{
"@type": "Question",
"name": "Y a-t-il des effets secondaires connus ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les effets secondaires sont encore à l'étude, mais peuvent inclure des réponses immunitaires."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir avec l'optogénétique ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications peuvent inclure des infections ou des réactions aux vecteurs utilisés."
}
},
{
"@type": "Question",
"name": "Y a-t-il des risques associés à l'optogénétique ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les risques incluent des effets indésirables liés à la manipulation génétique."
}
},
{
"@type": "Question",
"name": "Comment minimiser les complications en optogénétique ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "En suivant des protocoles stricts et en surveillant les patients après les interventions."
}
},
{
"@type": "Question",
"name": "Les complications sont-elles fréquentes ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elles sont rares, mais la recherche continue d'évaluer la sécurité de la technique."
}
},
{
"@type": "Question",
"name": "Quelles sont les complications à long terme ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications à long terme sont encore mal comprises et nécessitent des études approfondies."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque pour l'optogénétique ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent des antécédents médicaux, des maladies neurologiques et des traitements antérieurs."
}
},
{
"@type": "Question",
"name": "L'âge influence-t-il les résultats de l'optogénétique ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'âge peut affecter la réponse aux traitements optogénétiques et la récupération."
}
},
{
"@type": "Question",
"name": "Y a-t-il des facteurs environnementaux à considérer ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des facteurs comme le stress et l'exposition à des toxines peuvent influencer les résultats."
}
},
{
"@type": "Question",
"name": "Les facteurs génétiques jouent-ils un rôle ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les variations génétiques peuvent influencer la réponse aux interventions optogénétiques."
}
},
{
"@type": "Question",
"name": "Comment évaluer les facteurs de risque en optogénétique ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Par des évaluations cliniques et des études génétiques pour identifier les vulnérabilités."
}
}
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}
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Isolated REM sleep behavior disorder (iRBD) is strongly associated with synucleinopathies. Previous iRBD cohort studies have primarily focused on older (>50 years), male-predominant cohorts. Risk of p...
One hundred eighty-six women and 186 men with iRBD were matched by polysomnography month. Baseline clinical variables and subsequent neurodegenerative outcomes were abstracted by chart review. Kaplan-...
Age at iRBD diagnosis was younger in women compared with men (54.9 vs 62.5 years,...
Age at diagnosis was independently associated with phenoconversion risk in women and men with iRBD....
Degeneration of the nucleus basalis of Meynert (NBM) has been implicated in cognitive impairments in Parkinson's disease. The role of the NBM volumes in the cognitive function in isolated rapid eye mo...
We investigated changes in NBM volumes and their associations with cognitive deficits in iRBD. Baseline NBM volumes were compared between 29 iRBD patients and 29 healthy controls by using structural M...
Compared with controls, NBM volumes were significantly reduced in iRBD patients. In patients with iRBD, higher NBM volumes were significantly associated with greater performance in global cognition fu...
This study provides important in vivo evidence for an association between the NBM degeneration and cognitive impairments in iRBD....
It is reported that a diet that lowers oxidative stress reduces the prodromal Parkinson's disease (pPD) probability as well as the risk of Parkinson's disease (PD). In this study, we evaluated whether...
Polysomnography (PSG)-confirmed iRBD patients from the Neurology Department at Seoul National University Hospital were enrolled. We calculated the pPD probability using the "Web-based Medical Calculat...
We enrolled 101 patients with iRBD. The mean RFS score of patients with iRBD was 28.23 ± 9.29, which did not differ from the general population. Among patients with iRBD, the probability of pPD did no...
Diet quality assessed by RFS did not differ between the general population and patients with iRBD in Korea. Further studies are needed to confirm these protective effects of legume consumption on iRBD...
Mild cognitive impairment (MCI) is frequently diagnosed in patients with isolated rapid eye movement (REM) sleep behavior disorder (iRBD), although the extent of MCI-associated neuropathology has not ...
Sixty-one patients with iRBD were included in the study: 30 patients were included in the MCI subgroup (RBD-MCI) and 31 in the normal cognition subgroup (RBD-NC). Both groups underwent neuropsychiatri...
Neuropsychological measures generally confirmed overall cognitive decline in patients with iRBD-MCI. Immediate long-term verbal memory and visuospatial functions, as well as attentional-executive impa...
This study confirmed that iRBD patients with MCI had a more impaired cognitive status that those with NC. Moreover, the MCI subgroup presented reduced cerebral glucose consumption in brain areas criti...
Severe obstructive sleep apnea (OSA) in patients with rapid eye movement (REM) sleep behavior disorder (RBD) may result in frequent fragmentation of REM sleep and consequently lead to a false negative...
Patients with clinically diagnosed idiopathic RBD were included. RBD was confirmed if a video-PSG demonstrated complex motor behavior during REM sleep or REM sleep without atonia (RWA). Motor behavior...
Of a total 254 patients included, a diagnosis of RBD was confirmed by a video-PSG in 221 patients (87.0%). RWA, vocalization, and axial or proximal muscle movements in REM sleep were noted in 86.6%, 5...
OSA that requires CPAP may reduce a diagnostic accuracy for RBD by a video-PSG. False negative results were probably due to frequent electromyographic artifacts and/or severe sleep disruption from apn...
Previous studies revealed that sleep disorders are potential risk factors for cardiovascular diseases, such as obstructive sleep apnea and rapid eye movement (REM) sleep behavior disorder (RBD). Howev...
We used the latest and largest summary-level genome-wide association studies of RBD, stroke and its subtypes, coronary artery disease (CAD), myocardial infarction (MI), and heart failure (HF) to selec...
After multiple comparisons, genetically predicted RBD was significantly associated with the risk of HF [odds ratio (OR) = 1.033, 95% CI 1.013-1.052, p = 0.001]. Leave-one-out analysis further supporte...
Our study highlighted the potential associations between RBD and cardiovascular diseases at genetic level, including HF and MI. More studies were required to clarify the biological mechanisms involved...
Constipation, rapid eye movement sleep behavior disorder (RBD) and hyposmia are common prodromal symptoms of Parkinson's disease (PD), and they may represent two distinct types of disease origin, from...
A total of 111 de novo, drug-naïve Chinese PD patients were consecutively enrolled from Jan 2017 to Sept 2021. Patients were classified into PD with and without constipation based on item 5 of the Sca...
In total, 44.1% (n = 49) of de novo PD patients had constipation. PD patients with constipation were older (p = 0.028), had higher proportions of Hoehn and Yahr (H-Y) stage [Formula: see text] 2 (p = ...
RBD is closely associated with constipation in de novo Chinese PD patients. Our results support the theory that prodromal symptoms that represent the same pathological origin are closely related to ea...
Rapid eye movement (REM) sleep behavior disorder (RBD) could develop preceding or come after motor symptoms during Parkinson's disease (PD). It remains unknown that whether PD with different timing of...
We recruited 157 PD, 16 isolated RBD (iRBD), and 78 healthy controls. PD patients were identified as (1) PD with RBD preceding motor symptoms (PD-preRBD, n = 50), (2) PD with RBD posterior to motor sy...
The model predicted that SN occupied the highest likelihood in the maximum likelihood sequence of disease progression in the all PD subgroups, while LC was specifically positioned earlier to SN in iRB...
The spatiotemporal sequence of neurodegeneration between PD-pre and PD-post were similar but distinct from PD-nonRBD. The presence of RBD may be the essential factor for differentiating the degenerati...
Most patients with idiopathic REM sleep behavior disorder (iRBD) will develop an overt α-synucleinopathy over time, with a rate of phenoconversion of 73.5% after 12 years from diagnosis. Several marke...
Brain-derived neurotrophic factor (BDNF) promotes neuroprotection and neuroregeneration. BDNF enhances the survival of dopaminergic neurons and improves dopaminergic neurotransmission and motor perfor...
We employed the Rapid Eye Movement Sleep Behavior Disorder Questionnaire-Hong Kong version (RBDQ-HK) and the Rapid Eye Movement Sleep Behavior Disorder Screening Questionnaire (RBDSQ) for RBD diagnosi...
Our findings indicate that serum BDNF levels were significantly lower in PD patients compared to healthy controls (p < 0.001). PD-RBD patients exhibited higher motor symptom scores (UPDRS III) than PD...
This study illustrates that decreased serum BDNF levels may be linked to the development of RBD in PD patients, highlighting the potential utility of BDNF as a biomarker in clinical practice....