Titre : Histone-lysine N-methyltransferase

Histone-lysine N-methyltransferase : Questions médicales fréquentes

Termes MeSH sélectionnés :

Microarray Analysis
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"https://questionsmedicales.fr/mesh/D011495?mesh_terms=Microarray+Analysis&page=3#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Histone-lysine N-methyltransferase", "description": "Quels symptômes sont liés à une dysfonction des N-méthyltransférases ?\nLes symptômes sont-ils spécifiques à une maladie ?\nY a-t-il des symptômes neurologiques associés ?\nLes symptômes peuvent-ils évoluer avec le temps ?\nLes symptômes sont-ils visibles à l'examen physique ?", "url": "https://questionsmedicales.fr/mesh/D011495?mesh_terms=Microarray+Analysis&page=3#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Histone-lysine N-methyltransferase", "description": "Peut-on prévenir les dysfonctionnements des N-méthyltransférases ?\nY a-t-il des facteurs environnementaux à éviter ?\nLes dépistages réguliers sont-ils recommandés ?\nL'alimentation joue-t-elle un rôle dans la prévention ?\nLes exercices physiques aident-ils à prévenir les dysfonctionnements ?", "url": "https://questionsmedicales.fr/mesh/D011495?mesh_terms=Microarray+Analysis&page=3#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Histone-lysine N-methyltransferase", "description": "Quels traitements ciblent les N-méthyltransférases ?\nLa thérapie génique est-elle une option ?\nLes traitements sont-ils personnalisés ?\nY a-t-il des effets secondaires aux traitements ?\nLes traitements sont-ils efficaces à long terme ?", "url": "https://questionsmedicales.fr/mesh/D011495?mesh_terms=Microarray+Analysis&page=3#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Histone-lysine N-methyltransferase", "description": "Quelles complications peuvent survenir avec des dysfonctionnements ?\nLes complications sont-elles réversibles ?\nY a-t-il des complications neurologiques possibles ?\nLes complications affectent-elles la qualité de vie ?\nComment gérer les complications liées aux N-méthyltransférases ?", "url": "https://questionsmedicales.fr/mesh/D011495?mesh_terms=Microarray+Analysis&page=3#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Histone-lysine N-methyltransferase", "description": "Quels sont les principaux facteurs de risque ?\nL'âge est-il un facteur de risque ?\nLe mode de vie influence-t-il le risque ?\nLes maladies chroniques sont-elles des facteurs de risque ?\nY a-t-il des facteurs génétiques impliqués ?", "url": "https://questionsmedicales.fr/mesh/D011495?mesh_terms=Microarray+Analysis&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer une dysfonction des N-méthyltransférases ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Des tests génétiques et des analyses d'expression génique peuvent être utilisés." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour évaluer l'activité des N-méthyltransférases ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests biochimiques et des méthodes de chromatographie peuvent être employés." } }, { "@type": "Question", "name": "Les biopsies sont-elles nécessaires pour le diagnostic ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Elles peuvent être nécessaires pour évaluer les modifications épigénétiques." } }, { "@type": "Question", "name": "Quels marqueurs biologiques sont associés aux N-méthyltransférases ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Les niveaux de méthylation des histones peuvent servir de marqueurs biologiques." } }, { "@type": "Question", "name": "Peut-on utiliser l'imagerie pour diagnostiquer des anomalies ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "L'imagerie n'est pas couramment utilisée pour diagnostiquer ces anomalies." } }, { "@type": "Question", "name": "Quels symptômes sont liés à une dysfonction des N-méthyltransférases ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Des troubles de l'expression génique peuvent entraîner divers symptômes, selon le tissu." } }, { "@type": "Question", "name": "Les symptômes sont-ils spécifiques à une maladie ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Non, ils peuvent varier selon la maladie et le type de tissu affecté." } }, { "@type": "Question", "name": "Y a-t-il des symptômes neurologiques associés ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certaines dysfonctions peuvent entraîner des troubles neurologiques." } }, { "@type": "Question", "name": "Les symptômes peuvent-ils évoluer avec le temps ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'évolution des symptômes dépend de la progression de la maladie sous-jacente." } }, { "@type": "Question", "name": "Les symptômes sont-ils visibles à l'examen physique ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Souvent, les symptômes ne sont pas visibles et nécessitent des tests spécifiques." } }, { "@type": "Question", "name": "Peut-on prévenir les dysfonctionnements des N-méthyltransférases ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "La prévention est difficile, mais un mode de vie sain peut réduire les risques." } }, { "@type": "Question", "name": "Y a-t-il des facteurs environnementaux à éviter ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certains agents chimiques et toxines peuvent influencer la fonction enzymatique." } }, { "@type": "Question", "name": "Les dépistages réguliers sont-ils recommandés ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Des dépistages peuvent être utiles pour les personnes à risque génétique élevé." } }, { "@type": "Question", "name": "L'alimentation joue-t-elle un rôle dans la prévention ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Une alimentation équilibrée peut influencer la santé épigénétique et réduire les risques." } }, { "@type": "Question", "name": "Les exercices physiques aident-ils à prévenir les dysfonctionnements ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'exercice régulier peut avoir un impact positif sur la santé cellulaire." } }, { "@type": "Question", "name": "Quels traitements ciblent les N-méthyltransférases ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Des inhibiteurs spécifiques des N-méthyltransférases sont en cours de développement." } }, { "@type": "Question", "name": "La thérapie génique est-elle une option ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la thérapie génique pourrait corriger les anomalies liées aux N-méthyltransférases." } }, { "@type": "Question", "name": "Les traitements sont-ils personnalisés ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les traitements peuvent être adaptés en fonction du profil génétique du patient." } }, { "@type": "Question", "name": "Y a-t-il des effets secondaires aux traitements ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Oui, comme tout traitement, des effets secondaires peuvent survenir." } }, { "@type": "Question", "name": "Les traitements sont-ils efficaces à long terme ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "L'efficacité à long terme dépend de la maladie et de la réponse individuelle au traitement." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec des dysfonctionnements ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications peuvent inclure des cancers et d'autres maladies génétiques." } }, { "@type": "Question", "name": "Les complications sont-elles réversibles ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Certaines complications peuvent être gérées, mais d'autres peuvent être irréversibles." } }, { "@type": "Question", "name": "Y a-t-il des complications neurologiques possibles ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des troubles neurologiques peuvent survenir en raison de modifications épigénétiques." } }, { "@type": "Question", "name": "Les complications affectent-elles la qualité de vie ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elles peuvent significativement impacter la qualité de vie des patients." } }, { "@type": "Question", "name": "Comment gérer les complications liées aux N-méthyltransférases ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "La gestion nécessite une approche multidisciplinaire et un suivi régulier." } }, { "@type": "Question", "name": "Quels sont les principaux facteurs de risque ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les antécédents familiaux et l'exposition à des agents environnementaux sont des facteurs clés." } }, { "@type": "Question", "name": "L'âge est-il un facteur de risque ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le risque de dysfonctionnement enzymatique augmente avec l'âge." } }, { "@type": "Question", "name": "Le mode de vie influence-t-il le risque ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, un mode de vie malsain peut augmenter le risque de dysfonctionnement." } }, { "@type": "Question", "name": "Les maladies chroniques sont-elles des facteurs de risque ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certaines maladies chroniques peuvent prédisposer à des dysfonctionnements enzymatiques." } }, { "@type": "Question", "name": "Y a-t-il des facteurs génétiques impliqués ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des mutations génétiques peuvent augmenter le risque de dysfonctionnement." } } ] } ] }

Sources (10000 au total)

Identification of hub genes through integrated single-cell and microarray transcriptome analysis in osteoarthritic meniscus.

Osteoarthritis (OA) is marked by the progressive degradation of joint cartilage and subchondral bone. The precise molecular mechanisms driving meniscus deterioration in OA, especially at the single-ce... We analyzed two datasets from the GEO database, GSE220243 and GSE98918, focusing on meniscus tissue sequencing data from OA and non-OA patients. The standard Seurat procedure was employed to process s... After quality control, 34,763 cells from the OA patients and 34,145 cells from the healthy controls were analyzed. UMAP identified and SingleR annotated 14 cell clusters. The 10 largest cell clusters ... This research highlights crucial genes in the OA meniscus and uncovers their differing regulatory patterns between chondrocytes and non-chondrocytes. These findings enhance our understanding of the mo...

Application of chromosome microarray analysis and karyotyping in diagnostic assessment of abnormal Down syndrome screening results.

Down syndrome (DS) is the most common congenital cause of intellectual disability and also leads to numerous metabolic and structural problems. This study aims to explore the application value of chro... The study recruited 1452 pregnant women with abnormal DS screening results including 493 with an enlarged nuchal translucency thickness (NT ≥ 2.5 mm) and 959 with an abnormal second-trimester maternal... CMA identified 74/1452 abnormal results, which was more efficient than karyotyping (51/1452, P < 0.05.) CMA is equivalent to traditional karyotyping for identifying aneuploidies. Compared to karyotypi... CMA and karyotyping have both advantages and disadvantages in prenatal diagnosis of pregnant women with abnormal DS screening results. However, there was not enough evidence to support routine CMA in ...

Chromosomal microarray analysis supplements exome sequencing to diagnose children with suspected inborn errors of immunity.

Though copy number variants (CNVs) have been suggested to play a significant role in inborn errors of immunity (IEI), the precise nature of this role remains largely unexplored. We sought to determine... We performed exome sequencing (ES) and CMA for 332 unrelated pediatric probands referred for evaluation of IEI. The analysis included primary, secondary, and incidental findings.... Of the 332 probands, 134 (40.4%) received molecular diagnoses. Of these, 116/134 (86.6%) were diagnosed by ES alone. An additional 15/134 (11.2%) were diagnosed by CMA alone, including two likely... Pairing ES and CMA can provide a comprehensive evaluation to clarify the complex factors that contribute to both immune and non-immune phenotypes. Such a combined approach to genetic testing helps unt...

Contribution of chromosomal microarray analysis and next-generation sequencing to genetic diagnosis in fetuses with normal karyotype.

The aim of this study was to investigate the contribution of chromosomal microarray analysis (CMA) and next-generation sequencing (NGS) to genetic diagnosis in fetuses with normal karyotype who underw... The results of invasive genetic testing performed at a tertiary center between September 2020 and March 2022 were retrospectively analyzed. Indications for invasive tests were classified as fetal stru... A total of 830 invasive tests were performed and aneuploidy was detected in 11.2% of the fetuses. CMA was performed in 465 fetuses with normal karyotype, and pCNVs were detected in 6.9%. pCNVs were de... pCNVs can be significantly detected not only in fetuses with structural malformations, but also in invasive testing with other indications. NGS significantly contributes to genetic diagnosis in fetuse...

Receiving uncertain results from prenatal chromosomal microarray analysis: Women's decisions on continuation or termination of pregnancy.

Chromosomal microarray analysis (CMA) may detect variants of uncertain clinical significance (VUS) and susceptibility loci (SL) with incomplete penetrance for neurodevelopmental disorders. This qualit... Semi-structured interviews were conducted with women who received a VUS and/or SL from prenatal CMA in the last 2-4 years and were analyzed using Grounded Theory.... The vast majority of women recalled being stressed by the findings. All women sought further advice and information to be able to decide whether to continue or terminate their pregnancy. The three pre... Although uncertain/probabilistic information commonly involves a psychological burden, it may also be perceived as valuable and actionable. Pre-test parental choice regarding the disclosure of such in...

Phenotypic findings and pregnancy outcomes of fetal rare autosomal aneuploidies detected using chromosomal microarray analysis.

Aneuploidies are the most common chromosomal abnormality and the main genetic cause of adverse pregnancy outcomes. Since numerous studies have focused on common trisomies, relatively little is known a... A total of 90 RAAs were detected, of which 83 cases were mosaic trisomies and 7 were non-mosaic trisomies. Chromosomes 16, 22, and 9 were identified as the major chromosomes involving RAAs. The four p... Variable phenotypes and outcomes were observed, which were highly heterogeneous in cases of prenatal RAAs. Thus, a cautious and comprehensive strategy should be implemented during prenatal counseling ...

Identification of hsa-miR-365b-5p's role in Alzheimer's disease: A combined analysis of miRNA and mRNA microarrays.

Alzheimer's disease is a prevalent health problem with a heavy global burden. Definitely diagnosed by autopsy, the clear mechanism of Alzheimer's disease pathogenesis process needs to be illustrated. ... We attempted to discover the role of microRNA in Alzheimer's disease by microarray bioinformatics analysis using autopsy sample data from the GEO database. Temporal cortex samples were included in thi... After filtering out significantly differential expressed microRNAs and genes, enrichment analyses of both microRNAs and genes were conducted, respectively. Then, we constructed a transcription factor-... Hsa-miR-365b-5p act as a key target in Alzheimer's disease. It regulates Alzheimer's disease pathogenesis process via neuroinflammation, Wnt and oxidative stress pathway which provides a potential tar...