questionsmedicales.fr
Produits chimiques inorganiques
Oxygène singulet
Oxygène singulet : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Oxygène singulet
Spectroscopie
Fluorescence
Chimiluminescence
Spectroscopie
Oxygène singulet
Oxygène singulet
Sang
Effets biologiques
Stress oxydatif
Oxygène singulet
Marqueurs biologiques
Imagerie médicale
Oxygène singulet
Tissus
Symptômes
5
Oxygène singulet
Inflammation
Douleur
Oxygène singulet
Cancer
Maladies neurodégénératives
Lésions oxydatives
Oxygène singulet
Fonction cellulaire
Vieillissement cutané
Oxygène singulet
Dommages cellulaires
Tissus pulmonaires
Oxygène singulet
Symptômes respiratoires
Prévention
5
Pollution
Oxygène singulet
Antioxydants
Alimentation
Oxygène singulet
Antioxydants
Tabagisme
Oxygène singulet
Radicaux libres
Stress oxydatif
Oxygène singulet
Hygiène de vie
Exercice
Oxygène singulet
Défense antioxydante
Traitements
5
Antioxydants
Oxygène singulet
Traitement
Médicaments
Oxygène singulet
Antioxydants
Thérapie photodynamique
Oxygène singulet
Cellules cancéreuses
Prévention
Oxygène singulet
Antioxydants
Suppléments
Oxygène singulet
Antioxydants
Complications
5
Complications
Oxygène singulet
Maladies cardiovasculaires
Cancer
Oxygène singulet
Radicaux libres
Vieillissement cellulaire
Oxygène singulet
Maladies chroniques
Système immunitaire
Oxygène singulet
Infections
Troubles respiratoires
Oxygène singulet
Lésions pulmonaires
Facteurs de risque
5
Facteurs de risque
Oxygène singulet
Pollution
Âge
Oxygène singulet
Dommages cellulaires
Stress oxydatif
Oxygène singulet
Effets nocifs
Maladies préexistantes
Oxygène singulet
Diabète
Produits chimiques
Oxygène singulet
Toxiques
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"text": "L'oxygène singulet peut être détecté par des méthodes spectroscopiques comme la fluorescence."
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{
"@type": "Question",
"name": "Quels tests mesurent l'oxygène singulet ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
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{
"@type": "Question",
"name": "L'oxygène singulet est-il mesurable dans le sang ?",
"position": 3,
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"@type": "Question",
"name": "Quels indicateurs biologiques sont liés à l'oxygène singulet ?",
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"text": "Les marqueurs de stress oxydatif, comme les produits de peroxydation, peuvent indiquer sa présence."
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"@type": "Question",
"name": "Peut-on évaluer l'oxygène singulet par imagerie ?",
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"@type": "Question",
"name": "Quels symptômes sont associés à l'oxygène singulet ?",
"position": 6,
"acceptedAnswer": {
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"text": "L'oxygène singulet peut causer des dommages cellulaires, entraînant inflammation et douleur."
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{
"@type": "Question",
"name": "L'oxygène singulet provoque-t-il des maladies ?",
"position": 7,
"acceptedAnswer": {
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"text": "Oui, il est impliqué dans des maladies comme le cancer et les maladies neurodégénératives."
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"@type": "Question",
"name": "Quels effets l'oxygène singulet a-t-il sur les cellules ?",
"position": 8,
"acceptedAnswer": {
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"text": "Il peut induire des lésions oxydatives, affectant la fonction cellulaire et la survie."
}
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{
"@type": "Question",
"name": "L'oxygène singulet affecte-t-il la peau ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il peut provoquer un vieillissement cutané prématuré et des dommages aux cellules de la peau."
}
},
{
"@type": "Question",
"name": "Y a-t-il des symptômes respiratoires liés à l'oxygène singulet ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des dommages aux tissus pulmonaires peuvent survenir, entraînant des symptômes respiratoires."
}
},
{
"@type": "Question",
"name": "Comment réduire l'exposition à l'oxygène singulet ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éviter les environnements pollués et utiliser des antioxydants peut aider à réduire l'exposition."
}
},
{
"@type": "Question",
"name": "L'alimentation peut-elle prévenir les effets de l'oxygène singulet ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une alimentation riche en fruits et légumes antioxydants peut aider à prévenir les dommages."
}
},
{
"@type": "Question",
"name": "Le tabagisme augmente-t-il les risques liés à l'oxygène singulet ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le tabagisme génère des radicaux libres, augmentant les effets nocifs de l'oxygène singulet."
}
},
{
"@type": "Question",
"name": "Le stress oxydatif peut-il être évité ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Réduire le stress, avoir une bonne hygiène de vie et consommer des antioxydants aide à prévenir."
}
},
{
"@type": "Question",
"name": "Les exercices physiques aident-ils à prévenir les effets de l'oxygène singulet ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'exercice régulier peut améliorer la défense antioxydante de l'organisme."
}
},
{
"@type": "Question",
"name": "Comment traiter les effets de l'oxygène singulet ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des antioxydants peuvent être utilisés pour neutraliser les effets nocifs de l'oxygène singulet."
}
},
{
"@type": "Question",
"name": "Y a-t-il des médicaments spécifiques pour l'oxygène singulet ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Il n'existe pas de médicaments spécifiques, mais des traitements antioxydants sont recommandés."
}
},
{
"@type": "Question",
"name": "Les thérapies photodynamiques utilisent-elles l'oxygène singulet ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elles exploitent l'oxygène singulet pour détruire les cellules cancéreuses."
}
},
{
"@type": "Question",
"name": "Comment prévenir les dommages causés par l'oxygène singulet ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'utilisation d'antioxydants et la réduction de l'exposition aux polluants peuvent aider."
}
},
{
"@type": "Question",
"name": "Les suppléments antioxydants sont-ils efficaces ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Ils peuvent réduire les effets de l'oxygène singulet, mais leur efficacité varie selon les individus."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir avec l'oxygène singulet ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications incluent des maladies cardiovasculaires et des troubles neurodégénératifs."
}
},
{
"@type": "Question",
"name": "L'oxygène singulet peut-il causer des cancers ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il est impliqué dans la formation de radicaux libres, augmentant le risque de cancer."
}
},
{
"@type": "Question",
"name": "Y a-t-il des effets à long terme de l'oxygène singulet ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des effets à long terme incluent le vieillissement cellulaire et des maladies chroniques."
}
},
{
"@type": "Question",
"name": "L'oxygène singulet affecte-t-il le système immunitaire ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il peut altérer la fonction immunitaire, rendant l'organisme plus vulnérable aux infections."
}
},
{
"@type": "Question",
"name": "Des troubles respiratoires peuvent-ils être causés par l'oxygène singulet ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il peut provoquer des lésions pulmonaires, entraînant des troubles respiratoires."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque liés à l'oxygène singulet ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent le tabagisme, la pollution, et une alimentation pauvre en antioxydants."
}
},
{
"@type": "Question",
"name": "L'âge est-il un facteur de risque pour l'oxygène singulet ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le vieillissement augmente la susceptibilité aux dommages causés par l'oxygène singulet."
}
},
{
"@type": "Question",
"name": "Le stress oxydatif est-il un facteur de risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, un stress oxydatif accru peut augmenter les effets nocifs de l'oxygène singulet."
}
},
{
"@type": "Question",
"name": "Les maladies préexistantes augmentent-elles les risques ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des maladies comme le diabète et les maladies cardiovasculaires augmentent les risques."
}
},
{
"@type": "Question",
"name": "L'exposition à des produits chimiques est-elle un risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'exposition à des produits chimiques toxiques peut augmenter la production d'oxygène singulet."
}
}
]
}
]
}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 30/03/2025
Contenu vérifié selon les dernières recommandations médicales
4 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, Department of Pharmacy, Dalian University of Technology 2 Linggong Road 116024 Dalian China.
Publications dans "Oxygène singulet" :
3 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, and Department of Pharmaceutical Science, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China.
Publications dans "Oxygène singulet" :
3 publications dans cette catégorie
Affiliations :
Department of Biophysics, Faculty of Science, P. J. Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia.
Publications dans "Oxygène singulet" :
3 publications dans cette catégorie
Affiliations :
Department of Biophysics, Faculty of Science, P. J. Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia.
Publications dans "Oxygène singulet" :
3 publications dans cette catégorie
Affiliations :
Institute of Biogeochemistry and Pollutant Dynamics (IBP), Department of Environmental Systems Science, ETH Zurich, 8092 Zurich, Switzerland.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Institute of Physics, Photobiophysics, Humboldt University of Berlin, Newtonstr. 15, 12489 Berlin, Germany.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16200 Prague, Czech Republic.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16200 Prague, Czech Republic.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Laboratory of Microbiology and Oncology, Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, and Department of Pharmaceutical Science, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, and Department of Pharmaceutical Science, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, and Department of Pharmaceutical Science, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
School of Physics, Harbin Institute of Technology, Harbin, 150001, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China. Electronic address: qinfeng@hit.edu.cn.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
School of Physics, Harbin Institute of Technology, Harbin, 150001, China; School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China. Electronic address: zhangzhiguo@hit.edu.cn.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Department of Environmental Science Systems, ETH Zurich, Zurich 8092, Switzerland.
Department of Chemistry, University of British Columbia, Vancouver V6T 1Z1, Canada.
Publications dans "Oxygène singulet" :
Troponin elevation is frequently observed in various scenarios in the Emergency Department (ED), yet there is a paucity of studies investigating simultaneously measured high-sensitivity cardiac tropon...
All patients who underwent troponin testing at a single center were eligible for this study. Only patients with simultaneous samples with hs-cTnI (Siemens) and hs-cTnT (Roche) were included, regardles...
Analysis of 1987 samples from 1134 patients showed a significant correlation between hs-cTnT and hs-cTnI (r = 0.86, p < 0.01). Of these samples, 65% exceeded the upper reference limit (URL) for hs-cTn...
Elevated troponins above the URL were very common in this diverse cohort, particularly for hs-cTnT, which was twice as frequent compared to hs-cTnI, resulting in low specificity and PPV for AMI....
To examine the association of ultrasensitive cTnI (cardiac troponin I) with incident cardiovascular disease events (CVDs) in the primary prevention setting....
cTnI was analyzed in the baseline plasma (2008-2012) of CVD-free volunteers from the Paris Prospective Study III using a novel ultrasensitive immunoassay (Simoa Troponin-I 2.0 Kit, Quanterix, Lexingto...
The study population includes 9503 participants (40% women) aged 59.6 (6.3) years. cTnI was detected in 99.6% of the participants (median value=0.63 pg/mL, interquartile range, 0.39-1.09). After a med...
Ultrasensitive cTnI is an independent marker of CVD events in the primary prevention setting....
Cardiac vascular diseases, especially acute myocardial infarction (AMI), are one of the leading causes of death worldwide. Therefore cardio-specific biomarkers such as cardiac troponin I (cTnI) play a...
Elevations of high-sensitivity cardiac troponin (hs-cTn) concentrations not related to type 1 myocardial infarction are common in chest pain patients presenting to emergency departments. The discrimin...
We calculated the hs-cTn I/T ratio in 888 chest pain patients having hs-cTnI (Abbott Laboratories) or hs-cTnT (Roche Diagnostics) concentrations above the respective 99th percentile at 2 hours from pr...
The median hs-cTn I/T ratio was 3.45 (25th, 75th percentiles 1.80-6.59) in type 1 MI patients (n = 408 ☯46.0%]), 1.18 (0.81-1.90) in type 2 MI patients (n = 56 ☯6.3%]) and 0.67 (0.39-1.12) in patients...
The hs-cTn I/T ratio appears to be useful for early diagnosis of type 1 MI and its discrimination from type 2 MI in chest pain patients presenting with elevated hs-cTn. Differences in hs-cTn I/T ratio...
Cardiac surgeries are generally associated with high morbidity and mortality. To prevent any adverse outcomes, it is crucial to identify patients at risk of developing postoperative complications and ...
This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines. A thorough literature search was conducted over PubMed, clinic...
Following a comprehensive literature search, a total of 359 articles were obtained. Following a rigid screening and full-length review, only 13 studies met our inclusion criteria and were included. Th...
Troponin I has the potential to be used as a stand-alone predictor of surgical outcomes following coronary artery bypass grafting and valvular surgeries. However, supplementing it with other markers a...
Cardiac troponin I (cTnI) is one of the structural subunits of cardiac troponin complexes and a significant biomarker of acute myocardial infarction (AMI). Therefore, a sensitive detection of cTnI in ...
Coronavirus disease 2019 (COVID-19) can cause cardiac injury, probably associated with myocarditis and ischemia induced by the infection. Myocardial damage leads to the liberation of proinflammatory c...
To assess mortality associated with myocardial damage in hospitalized patients with COVID-19 confirmed by troponin I measurement....
Case-control study nested in a cohort of patients of a third-level hospital. Descriptive statistics were used to characterize the population. Qualitative variables were expressed as proportions and ra...
From June 2020 to August 2020, 28 patients who met the selection criteria were enrolled, out of which 15 had no myocardial damage and 13 had myocardial damage assessed by serum troponin measurement. A...
Mortality in patients with COVID-19 is associated with myocardial damage assessed by troponin I measurement....
High-sensitivity Troponin I (hs-cTnI) has largely replaced conventional troponin assays in an effort to improve detection of myocardial infarction. However, the mean displacement of hs-cTnI following ...
Between 2016 and 2018, 374 patients underwent non-emergent, isolated CABG. Pre-operative and 6 h post-operative hs-cTnI values were recorded as well as ECG, echocardiographic and angiographic data....
Of 374 patients, 151 (40.3%) had normal and 224 (59.7%) had elevated preoperative hs-cTnI. Patients with normal preoperative hs-cTnI had a mean 6 h hs-cTnI of 9193 ng/l or 270X the upper normal value....
We suggest hs-cTnI threshold of 80-fold in patients with normal pre-operative hs-cTnI and 2.7-fold in patients with elevated pre-operative hs-cTnI. These results have important implications for periop...
Rod-like graphite carbon nitride@MnO...
Background and Objectives: We aimed to compare the time to diagnosis for acute coronary syndromes using high-sensitivity troponin I (hsTnI) and conventional troponin I (TnI) in patients presenting to ...