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Enzymes et coenzymes
Enzymes
Transferases
One-carbon group transferases
Methyltransferases
Phosphatidyl-N-methylethanolamine N-methyltransferase
Phosphatidyl-N-methylethanolamine N-methyltransferase : Questions médicales fréquentes
Diagnostic
5
Déficience enzymatique
Tests génétiques
Tests sanguins
Phospholipides
Marqueurs biologiques
Phosphatidyléthanolamine
Biopsie
Fonction hépatique
Symptômes
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5
Fatigue
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Cognition
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5
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Facteurs de risque
Dépistage
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5
Suppléments
Traitements symptomatiques
Thérapie génique
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Médicaments
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Alimentation
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5
Complications hépatiques
Complications neurologiques
Réversibilité
Gestion des complications
Maladies cardiovasculaires
Maladies métaboliques
Surveillance
Examens réguliers
Qualité de vie
Impact des complications
Facteurs de risque
5
Antécédents familiaux
Troubles métaboliques
Maladies métaboliques
Déficiences enzymatiques
Facteurs environnementaux
Toxines
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"name": "Comment diagnostiquer une déficience en cette enzyme ?",
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{
"@type": "Question",
"name": "Quels tests sanguins sont utiles pour le diagnostic ?",
"position": 2,
"acceptedAnswer": {
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"text": "Les dosages de phospholipides et d'enzymes hépatiques peuvent être informatifs."
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{
"@type": "Question",
"name": "Y a-t-il des marqueurs spécifiques à rechercher ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des niveaux anormaux de phosphatidyléthanolamine peuvent indiquer un problème."
}
},
{
"@type": "Question",
"name": "Le diagnostic nécessite-t-il une biopsie ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
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{
"@type": "Question",
"name": "Quels symptômes peuvent alerter sur un problème enzymatique ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des symptômes comme la fatigue, des troubles neurologiques ou hépatiques peuvent survenir."
}
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{
"@type": "Question",
"name": "Quels sont les symptômes d'une déficience en cette enzyme ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Fatigue, troubles neurologiques, et anomalies hépatiques sont fréquents."
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{
"@type": "Question",
"name": "Les symptômes varient-ils selon l'âge ?",
"position": 7,
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"@type": "Question",
"name": "Y a-t-il des symptômes spécifiques aux troubles hépatiques ?",
"position": 8,
"acceptedAnswer": {
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"text": "Ictère, douleurs abdominales et hépatomégalie peuvent se manifester."
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{
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"name": "Les symptômes sont-ils réversibles ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certains symptômes peuvent s'améliorer avec un traitement approprié."
}
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{
"@type": "Question",
"name": "Des symptômes psychologiques peuvent-ils être présents ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles de l'humeur et de la cognition peuvent survenir."
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{
"@type": "Question",
"name": "Peut-on prévenir les déficiences enzymatiques ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une détection précoce et un suivi médical peuvent aider à prévenir les complications."
}
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{
"@type": "Question",
"name": "Y a-t-il des facteurs de risque à surveiller ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des antécédents familiaux de troubles métaboliques peuvent augmenter le risque."
}
},
{
"@type": "Question",
"name": "Des tests de dépistage sont-ils recommandés ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des tests de dépistage génétique peuvent être conseillés pour les familles à risque."
}
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{
"@type": "Question",
"name": "Comment le mode de vie influence-t-il la santé enzymatique ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un mode de vie sain, incluant une bonne nutrition, peut soutenir la fonction enzymatique."
}
},
{
"@type": "Question",
"name": "Les vaccinations ont-elles un rôle dans la prévention ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les vaccinations ne préviennent pas directement les déficiences enzymatiques."
}
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{
"@type": "Question",
"name": "Quels traitements sont disponibles pour cette déficience ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des suppléments de phospholipides et des traitements symptomatiques peuvent être utilisés."
}
},
{
"@type": "Question",
"name": "La thérapie génique est-elle une option ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "La thérapie génique est en recherche, mais pas encore largement disponible."
}
},
{
"@type": "Question",
"name": "Des médicaments spécifiques sont-ils recommandés ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Actuellement, il n'existe pas de médicaments spécifiques approuvés pour cette condition."
}
},
{
"@type": "Question",
"name": "Comment gérer les symptômes neurologiques ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des traitements neurologiques et des thérapies de soutien peuvent être bénéfiques."
}
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{
"@type": "Question",
"name": "Y a-t-il des approches diététiques recommandées ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une alimentation riche en phospholipides peut aider à soutenir la santé cellulaire."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir avec cette déficience ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications hépatiques, neurologiques et métaboliques peuvent se développer."
}
},
{
"@type": "Question",
"name": "Les complications sont-elles réversibles ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines complications peuvent être gérées, mais d'autres peuvent être permanentes."
}
},
{
"@type": "Question",
"name": "Y a-t-il un risque accru de maladies associées ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, un risque accru de maladies cardiovasculaires et métaboliques peut exister."
}
},
{
"@type": "Question",
"name": "Comment surveiller les complications potentielles ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des examens réguliers et des bilans de santé sont essentiels pour la surveillance."
}
},
{
"@type": "Question",
"name": "Les complications peuvent-elles affecter la qualité de vie ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les complications peuvent significativement impacter la qualité de vie des patients."
}
},
{
"@type": "Question",
"name": "Quels sont les principaux facteurs de risque ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les antécédents familiaux, l'alimentation et certains troubles métaboliques sont des facteurs clés."
}
},
{
"@type": "Question",
"name": "L'âge influence-t-il le risque de déficience ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le risque peut augmenter avec l'âge, surtout en cas d'antécédents familiaux."
}
},
{
"@type": "Question",
"name": "Le mode de vie peut-il aggraver le risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un mode de vie sédentaire et une mauvaise alimentation peuvent augmenter le risque."
}
},
{
"@type": "Question",
"name": "Y a-t-il des maladies associées qui augmentent le risque ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certaines maladies métaboliques peuvent prédisposer à des déficiences enzymatiques."
}
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{
"@type": "Question",
"name": "Les facteurs environnementaux jouent-ils un rôle ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des facteurs environnementaux, comme l'exposition à des toxines, peuvent influencer le risque."
}
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}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 09/02/2026
Contenu vérifié selon les dernières recommandations médicales
7 publications dans cette catégorie
Affiliations :
Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.
7 publications dans cette catégorie
Affiliations :
Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.
New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, Ancona, Italy.
5 publications dans cette catégorie
Affiliations :
Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, Institute for Drug Discovery, Purdue University, West Lafayette, IN, 47907, USA.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
5 publications dans cette catégorie
Affiliations :
Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
5 publications dans cette catégorie
Affiliations :
Department of Clinical Sciences, Polytechnic University of Marche, Ancona, Italy.
New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, Ancona, Italy.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
4 publications dans cette catégorie
Affiliations :
Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
4 publications dans cette catégorie
Affiliations :
Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
4 publications dans cette catégorie
Affiliations :
Department of Clinical, Specialistic and Dental Sciences, Marche Polytechnic University, 60126 Ancona, Italy.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
4 publications dans cette catégorie
Affiliations :
Key Lab of Aquatic Training Monitoring and Intervention of General Administration of Sport of China, Physical Education College, Jiangxi Normal University, Nanchang, 330022 Jiangxi, China.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
4 publications dans cette catégorie
Affiliations :
Key Lab of Aquatic Training Monitoring and Intervention of General Administration of Sport of China, Physical Education College, Jiangxi Normal University, Nanchang, 330022 Jiangxi, China.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
3 publications dans cette catégorie
Affiliations :
Department of Clinical, Specialistic and Dental Sciences, Marche Polytechnic University, 60126 Ancona, Italy.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
3 publications dans cette catégorie
Affiliations :
Department of Clinical, Specialistic and Dental Sciences, Marche Polytechnic University, 60126 Ancona, Italy.
Dentistry Clinic, National Institute of Health and Science of Aging, IRCCS INRCA, 60126 Ancona, Italy.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
3 publications dans cette catégorie
Affiliations :
Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, Institute for Drug Discovery , Purdue University , West Lafayette , Indiana 47907 , United States.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
3 publications dans cette catégorie
Affiliations :
Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Selcuk University Hospital, Selcuk University Medical School, Konya, Turkey.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
3 publications dans cette catégorie
Affiliations :
Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Selcuk University Hospital, Selcuk University Medical School, Konya, Turkey.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
3 publications dans cette catégorie
Affiliations :
Key Lab of Aquatic Training Monitoring and Intervention of General Administration of Sport of China, Physical Education College, Jiangxi Normal University, Nanchang, China.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
3 publications dans cette catégorie
Affiliations :
Key Lab of Aquatic Training Monitoring and Intervention of General Administration of Sport of China, Physical Education College, Jiangxi Normal University, Nanchang, China.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
3 publications dans cette catégorie
Affiliations :
Key Lab of Aquatic Training Monitoring and Intervention of General Administration of Sport of China, Physical Education College, Jiangxi Normal University, Nanchang, China.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
3 publications dans cette catégorie
Affiliations :
Key Lab of Aquatic Training Monitoring and Intervention of General Administration of Sport of China, Physical Education College, Jiangxi Normal University, Nanchang, China.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
2 publications dans cette catégorie
Affiliations :
College of Biochemical Engineering, Beijing Union University, Beijing 100023, China.
Publications dans "Phosphatidyl-N-methylethanolamine N-methyltransferase" :
In previous genome-wide association studies (GWAS), genetic loci associated with obesity and impaired fat distribution (FD) have been identified. In the present study, we elucidated the role of the...
Locating on endoplasmic reticulum and mitochondria associated membrane, Phosphatidylethanolamine N-methyltransferase (PEMT), catalyzes phosphatidylethanolamine methylation to phosphatidylcholine. As t...
Secondary metabolites such as benzylisoquinoline alkaloids (BIA) have attracted considerable attention because of their pharmacological properties and potential therapeutic applications. Methyltransfe...
Since MTs may be the source for the discovery and development of novel biomedical, agricultural, and industrial compounds, we performed extensive molecular and phylogenetic analyses of O- and N-methyl...
MTs involved in BIA biosynthesis were isolated from transcriptomes of Berberis koreana and Caulophyllum robustum. We also mined the methyltransferases of Coptis japonica, Papaver somniferum, and Nelum...
We mined 42 O-methyltransferases and 8 N-methyltransferases from the five BIA-producing plants. Functional motifs for S-adenosyl-L-methionine-dependent methyltransferases were retained in most methylt...
Methyltransferases may be a source for the discovery and development of novel biomedical, agricultural, and industrial compounds. Our results contribute to further understanding of their structure and...
Sarcopenia is a significant geriatric syndrome that involves the loss of skeletal muscle mass and strength. Due to its substantial endocrine role, the metabolic microenvironment of skeletal muscle und...
Osteosarcoma (OS) is a primary bone malignancy that mostly affects young people, characterized by high metastatic potential, and a marked chemoresistance that is responsible for disease relapse in mos...
Immunohistochemical analyses have been performed to evaluate NNMT expression in selected OS and healthy bone tissue samples. Subsequently, OS cell lines have been transfected with vectors targeting NN...
Results showed that OS samples display a significantly higher NNMT expression compared with healthy tissue. Preliminary results suggest that NNMT silencing in OS cell lines is associated to a decrease...
Tellurium (Te) is a metalloid widely used in various industries. However, its toxicological impact on humans is poorly understood. In this study, we investigated the role of two methyltransferases, th...
Metabolic syndrome (MetS) represents a constellation of metabolic abnormalities, typified by obesity, hypertension, hyperglycemia, and hyperlipidemia. It stems from intricate dysregulations in metabol...
Guanidinoacetate N-methyltransferase (GAMT) deficiency is a rare autosomal recessive disorder characterized by a decrease in creatine synthesis, resulting in cerebral creatine deficiency syndrome (CCD...
Metabolism controls cellular phenotype and fate. In this report, we demonstrate that nicotinamide N-methyltransferase (NNMT), a metabolic enzyme that regulates developmental stem cell transitions and ...
N-methyltransferase (NMT)-catalyzed methylation at the termini of nonribosomal peptides (NRPs) has rarely been reported. Here, we discover a fungal NMT LcsG for the iterative terminal N-methylation of...