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Enzymes et coenzymes
Enzymes
Transferases
Phosphotransferases
Phosphotransferases (Phosphate Group Acceptor)
Phosphotransferases (Phosphate Group Acceptor) : Questions médicales fréquentes
Termes MeSH sélectionnés :
Catechol O-Methyltransferase
Diagnostic
5
Déficience enzymatique
Phosphotransférases
Tests de laboratoire
Phosphotransférases
Symptômes métaboliques
Phosphotransférases
Tests génétiques
Phosphotransférases
Imagerie médicale
Phosphotransférases
Symptômes
5
Fatigue
Phosphotransférases
Troubles neurologiques
Phosphotransférases
Enzymes
Phosphotransférases
Symptômes néonatals
Phosphotransférases
Retard de développement
Phosphotransférases
Prévention
5
Prévention
Phosphotransférases
Dépistage néonatal
Phosphotransférases
Recommandations diététiques
Phosphotransférases
Conseils génétiques
Phosphotransférases
Vaccination
Phosphotransférases
Traitements
5
Traitement nutritionnel
Phosphotransférases
Thérapie génique
Phosphotransférases
Médicaments
Phosphotransférases
Essais cliniques
Phosphotransférases
Gestion diététique
Phosphotransférases
Complications
5
Complications métaboliques
Phosphotransférases
Troubles cardiaques
Phosphotransférases
Qualité de vie
Phosphotransférases
Complications
Phosphotransférases
Maladies métaboliques
Phosphotransférases
Facteurs de risque
5
Facteurs de risque
Phosphotransférases
Facteurs environnementaux
Phosphotransférases
Maladies auto-immunes
Phosphotransférases
Alimentation
Phosphotransférases
Infections
Phosphotransférases
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"text": "Des tests enzymatiques et des analyses biochimiques sont utilisés pour évaluer l'activité des phosphotransférases."
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"@type": "Question",
"name": "Quels tests sont utilisés pour évaluer l'activité des phosphotransférases ?",
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"name": "Quels sont les symptômes d'une déficience en phosphotransférases ?",
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"name": "Comment les symptômes varient-ils selon le type d'enzyme ?",
"position": 8,
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"name": "Les symptômes apparaissent-ils à la naissance ?",
"position": 9,
"acceptedAnswer": {
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"text": "Certains symptômes peuvent apparaître à la naissance, tandis que d'autres se développent plus tard."
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"@type": "Question",
"name": "Y a-t-il des symptômes spécifiques aux enfants ?",
"position": 10,
"acceptedAnswer": {
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"@type": "Question",
"name": "Peut-on prévenir les déficiences en phosphotransférases ?",
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"name": "Les tests de dépistage néonatal sont-ils utiles ?",
"position": 12,
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"name": "Y a-t-il des recommandations diététiques préventives ?",
"position": 13,
"acceptedAnswer": {
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"text": "Des recommandations diététiques peuvent être établies pour les familles à risque."
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"@type": "Question",
"name": "Les conseils génétiques sont-ils importants ?",
"position": 14,
"acceptedAnswer": {
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"text": "Oui, les conseils génétiques peuvent aider les familles à comprendre les risques de transmission."
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"@type": "Question",
"name": "Les vaccinations peuvent-elles aider à prévenir des complications ?",
"position": 15,
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"name": "Quels traitements sont disponibles pour les déficiences en phosphotransférases ?",
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"name": "La thérapie génique est-elle une option ?",
"position": 17,
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"@type": "Question",
"name": "Les médicaments peuvent-ils aider à traiter ces déficiences ?",
"position": 18,
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"text": "Certains médicaments peuvent aider à gérer les symptômes, mais ne corrigent pas la déficience."
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"@type": "Question",
"name": "Y a-t-il des traitements expérimentaux en cours ?",
"position": 19,
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"text": "Oui, des études cliniques explorent de nouvelles approches thérapeutiques pour ces conditions."
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"@type": "Question",
"name": "Comment la gestion diététique aide-t-elle ?",
"position": 20,
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"@type": "Question",
"name": "Quelles complications peuvent survenir avec ces déficiences ?",
"position": 21,
"acceptedAnswer": {
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"text": "Des complications métaboliques, neurologiques et de croissance peuvent se développer."
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"@type": "Question",
"name": "Les troubles cardiaques sont-ils une complication possible ?",
"position": 22,
"acceptedAnswer": {
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"text": "Oui, des troubles cardiaques peuvent survenir en raison d'un métabolisme énergétique altéré."
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"@type": "Question",
"name": "Comment les complications affectent-elles la qualité de vie ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications peuvent réduire la qualité de vie en limitant les activités quotidiennes."
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"@type": "Question",
"name": "Les complications sont-elles réversibles ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines complications peuvent être gérées, mais d'autres peuvent être permanentes."
}
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"@type": "Question",
"name": "Y a-t-il un risque accru de maladies métaboliques ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les personnes avec des déficiences en phosphotransférases peuvent avoir un risque accru de maladies métaboliques."
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"@type": "Question",
"name": "Quels sont les facteurs de risque pour ces déficiences ?",
"position": 26,
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"text": "Les antécédents familiaux et certaines mutations génétiques sont des facteurs de risque connus."
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"position": 27,
"acceptedAnswer": {
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"text": "Oui, certains facteurs environnementaux peuvent influencer l'expression des déficiences enzymatiques."
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"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une alimentation déséquilibrée peut exacerber les symptômes chez les personnes à risque."
}
},
{
"@type": "Question",
"name": "Les infections peuvent-elles aggraver la condition ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certaines infections peuvent déclencher ou aggraver les symptômes liés aux déficiences enzymatiques."
}
}
]
}
]
}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 27/04/2025
Contenu vérifié selon les dernières recommandations médicales
3 publications dans cette catégorie
Affiliations :
Institute of Biochemistry and Molecular Medicine, University of Bern, Bühlstrasse 28, 3012, Bern, Switzerland. jean-marc.jeckelmann@ibmm.unibe.ch.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
3 publications dans cette catégorie
Affiliations :
Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Institute of Biochemistry and Molecular Medicine, University of Bern, Bühlstrasse 28, 3012, Bern, Switzerland.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.
Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Blvd, District Nanshan, Shenzhen, 518055, P. R. China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
Center of Materials Science and Optoelectronics Engineer, University of Chinese Academy of Sciences, Beijing 100049, China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
Center of Materials Science and Optoelectronics Engineer, University of Chinese Academy of Sciences, Beijing 100049, China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Institute of Polymer Optoelectronic Materials and Devices and State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Department of Biochemistry, Dokkyo Medical University School of Medicine, Mibu, Tochigi 321-0293, Japan.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Department of Biochemistry, Dokkyo Medical University School of Medicine, Mibu, Tochigi 321-0293, Japan h-sugi@dokkyomed.ac.jp.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
2 publications dans cette catégorie
Affiliations :
Department of Microbiology, Assam University, Silchar, Assam, India.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
1 publication dans cette catégorie
Affiliations :
Department of Biochemistry, McGill University, Montreal, QC H3G 0B1, Canada.
Department of Anatomy and Cell Biology, McGill University, Montreal, QC H3A 0C7, Canada.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
1 publication dans cette catégorie
Affiliations :
Department of Biochemistry, McGill University, Montreal, QC H3G 0B1, Canada.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
1 publication dans cette catégorie
Affiliations :
Department of Anatomy and Cell Biology, McGill University, Montreal, QC H3A 0C7, Canada.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
1 publication dans cette catégorie
Affiliations :
Department of Biochemistry, McGill University, Montreal, QC H3G 0B1, Canada.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
1 publication dans cette catégorie
Affiliations :
State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan 430062, China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
1 publication dans cette catégorie
Affiliations :
State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan 430062, China.
Publications dans "Phosphotransferases (Phosphate Group Acceptor)" :
l-DOPA, a dopamine precursor, is commonly used as a treatment for patients with conditions such as Parkinson's disease. This therapeutic l-DOPA, as well as the dopamine derived from l-DOPA, can be dea...
Impulsivity and substance use disorders (SUD) have been both associated with changes in dopaminergic processes. In this study, we intended to evaluate the dopaminergic function in imprisoned SUD offen...
The study included 46 male individuals from a Portuguese penal institution. The participants were assessed through a battery of standardised instruments: Psychopathy Checklist-Revised (PCL-R), Barratt...
Overall, 73.9% (n = 34) of the individuals had Antisocial personality disorder (ASPD) and 58.7% (n = 27) presented SUD. We evidenced, for the first time, that, in individuals with SUD, s-COMT activity...
This study opens new perspectives regarding the pharmacological intervention on substance dependence through the interference on dopamine pathways....
Catechol-O-methyltransferase (COMT) has been shown to influence clinical pain, descending modulation, and exercise-induced symptom worsening. COMT regulates nociceptive processing and inflammation, ke...
A case-control study with repeated-measures design was used to reduce the chance of false positive and increase the power of our findings. Fifty-four participants (28 patients with CFS/FM and 26 contr...
COMT haplotypes were associated with DNA methylation in the S-COMT promoter, TGF-β expression, and symptoms. However, this was not specific for one condition. Significant between-group differences wer...
Our results are consistent with basic and clinical research, providing interesting insights into genetic-epigenetic regulatory mechanisms. MB-COMT DNA methylation might be an independent factor contri...
Increased oxidative stress (OS) and depletion of nigrostriatal dopamine (DA) are closely linked to the neurodegeneration observed in Parkinson's Disease (PD). Caffeic acid (CA)-based antioxidants were...
The gut microbiota modulates dopamine levels in vivo, but the bacteria and biochemical processes responsible remain incompletely characterized. A potential precursor of bacterial dopamine production i...
Human faecal bacterial communities O-demethylated 3MT and yielded dopamine. Gut bacteria that mediate this transformation were identified as acetogens Eubacterium limosum and Blautia producta. Upon ex...
Gut bacterial acetogens E. limosum and B. producta synthesized dopamine from 3MT. This O-demethylation of 3MT was likely performed by cobalamin-dependent O-demethylases implicated in reductive acetoge...
This is the first report that gut bacteria can synthesize dopamine by O-demethylation of 3MT. Owing to 3MT being the product of host COMT attenuating dopamine levels, gut bacteria that reverse this tr...
The treatment of Parkinson's disease (PD) is still symptomatic since disease-modifying treatments for PD are not available. Oral levodopa is the gold standard for the treatment of PD motor symptoms. H...
A double-blind, placebo-controlled, randomized, crossover, phase I, pharmacokinetic study with 25 healthy volunteers was conducted. In addition, a semi-mechanistic pharmacokinetic model was built to t...
The effect of increased carbidopa doses 50 and 100 mg on the total exposure (AUC) of 100 mg IR levodopa was +29% and +36%, respectively, when entacapone was co-administered. Without entacapone, the co...
Increasing carbidopa doses significantly increased the exposure and reduced the fluctuation of IR levodopa in plasma during simultaneous COMT inhibition with entacapone. Theoretical pharmacokinetic si...
The catechol-O-methyltransferase (COMT) gene has arguably been the designated pain sensitivity gene for nearly two decades. However, the literature provides inconsistent evidence. We performed several...
Recent findings have associated different COMT genotypes with working memory capacity in patients with fibromyalgia. Although it is thought that the COMT gene may influence neural correlates (P2 and P...
The catechol-O-methyltransferase (COMT) gene is thought to have an important role in the etiopathogenesis of schizophrenia, but there are conflicting results regarding its role in clinical presentatio...
Long-term levodopa therapy for Parkinson's disease (PD) can cause levodopa induced dyskinesia (LID). Genetic predisposition has a significant role to play in inter-individual heterogeneity in the clin...
In this meta-analysis, we have used 9 studies, which were selected through online databases. Statistical analysis was performed using R (v-3.6) software. 5 genetic models have been used in the present...
The results indicated a significant association between COMT rs4680 (Val158Met) polymorphism and LID risk. The genotype AA of COMT rs4680 is a risk factor for LID in PD patients under the recessive mo...
The results of the present meta-analysis support that the COMT Val158Met polymorphism is a risk factor for the development of LID in PD patients having ethnic variations....