Titre : Déméthylation

Déméthylation : Questions médicales fréquentes

Termes MeSH sélectionnés :

Ventricular Function, Left
{ "@context": "https://schema.org", "@graph": [ { "@type": "MedicalWebPage", "name": "Déméthylation : Questions médicales les plus fréquentes", "headline": "Déméthylation : Comprendre les symptômes, diagnostics et traitements", "description": "Guide complet et accessible sur les Déméthylation : explications, diagnostics, traitements et prévention. Information médicale validée destinée aux patients.", "datePublished": "2024-01-25", "dateModified": "2025-04-19", "inLanguage": "fr", "medicalAudience": [ { "@type": "MedicalAudience", "name": "Grand public", "audienceType": "Patient", "healthCondition": { "@type": "MedicalCondition", "name": "Déméthylation" }, "suggestedMinAge": 18, "suggestedGender": "unisex" }, { "@type": "MedicalAudience", "name": "Médecins", "audienceType": "Physician", "geographicArea": { "@type": "AdministrativeArea", "name": "France" } }, { "@type": "MedicalAudience", "name": "Chercheurs", "audienceType": "Researcher", "geographicArea": { "@type": "AdministrativeArea", "name": "International" } } ], "reviewedBy": { "@type": "Person", "name": "Dr Olivier Menir", "jobTitle": "Expert en Médecine", "description": "Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale", "url": "/static/pages/docteur-olivier-menir.html", "alumniOf": { "@type": "EducationalOrganization", "name": "Université Paris Descartes" } }, "isPartOf": { "@type": "MedicalWebPage", "name": "Désalkylation", "url": "https://questionsmedicales.fr/mesh/D003640", "about": { "@type": "MedicalCondition", "name": "Désalkylation", "code": { "@type": "MedicalCode", "code": "D003640", "codingSystem": "MeSH" }, "identifier": { "@type": "PropertyValue", "propertyID": "MeSH Tree", "value": "G03.219" } } }, "hasPart": [ { "@type": "MedicalWebPage", "name": "Déméthylation de l'ADN", "alternateName": "DNA Demethylation", "url": "https://questionsmedicales.fr/mesh/D000073399", "about": { "@type": "MedicalCondition", "name": "Déméthylation de l'ADN", "code": { "@type": "MedicalCode", "code": "D000073399", "codingSystem": "MeSH" }, "identifier": { "@type": "PropertyValue", "propertyID": "MeSH Tree", "value": "G03.219.500.500" } } } ], "about": { "@type": "MedicalCondition", "name": "Déméthylation", "alternateName": "Demethylation", "code": { "@type": "MedicalCode", "code": "D000073398", "codingSystem": "MeSH" } }, "author": [ { "@type": "Person", "name": "Samuel E Ross", "url": "https://questionsmedicales.fr/author/Samuel%20E%20Ross", "affiliation": { "@type": "Organization", "name": "Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, Australia." } }, { "@type": "Person", "name": "Ozren Bogdanovic", "url": "https://questionsmedicales.fr/author/Ozren%20Bogdanovic", "affiliation": { "@type": "Organization", "name": "Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, Australia." } }, { "@type": "Person", "name": "Yaxin Xiong", "url": "https://questionsmedicales.fr/author/Yaxin%20Xiong", "affiliation": { "@type": "Organization", "name": "Department of Environmental Sciences, University of California, Riverside, California 92521, United States." } }, { "@type": "Person", "name": "Qingyang Shi", "url": "https://questionsmedicales.fr/author/Qingyang%20Shi", "affiliation": { "@type": "Organization", "name": "Department of Environmental Sciences, University of California, Riverside, California 92521, United States." } }, { "@type": "Person", "name": "Daniel Schlenk", "url": "https://questionsmedicales.fr/author/Daniel%20Schlenk", "affiliation": { "@type": "Organization", "name": "Department of Environmental Sciences, University of California, Riverside, California 92521, United States." } } ], "citation": [ { "@type": "ScholarlyArticle", "name": "Association of arterial properties with left ventricular morphology and function in the community.", "datePublished": "2022-08-18", "url": "https://questionsmedicales.fr/article/35983866", "identifier": { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1097/HJH.0000000000003272" } }, { "@type": "ScholarlyArticle", "name": "Effect of Corticosteroids on Left Ventricular Function in Patients With Cardiac Sarcoidosis.", "datePublished": "2022-06-11", "url": "https://questionsmedicales.fr/article/35701237", "identifier": { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1016/j.amjcard.2022.04.051" } }, { "@type": "ScholarlyArticle", "name": "Predicting poor left ventricular function recovery in Peripartum cardiomyopathy.", "datePublished": "2023-11-07", "url": "https://questionsmedicales.fr/article/37935592", "identifier": { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1080/14767058.2023.2279018" } }, { "@type": "ScholarlyArticle", "name": "Evaluation of left ventricular systolic function in patients with iron deficiency anemia based on non-invasive left ventricular pressure-strain loops.", "datePublished": "2024-08-17", "url": "https://questionsmedicales.fr/article/39152411", "identifier": { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1186/s12938-024-01276-2" } }, { "@type": "ScholarlyArticle", "name": "Left Atrial Strain for Assessment of Left Ventricular Diastolic Function: Focus on Populations With Normal LVEF.", "datePublished": "2023-01-11", "url": "https://questionsmedicales.fr/article/36752445", "identifier": { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1016/j.jcmg.2022.10.011" } } ], "breadcrumb": { "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "questionsmedicales.fr", "item": "https://questionsmedicales.fr" }, { "@type": "ListItem", "position": 2, "name": "Métabolisme", "item": "https://questionsmedicales.fr/mesh/D008660" }, { "@type": "ListItem", "position": 3, "name": "Désalkylation", "item": "https://questionsmedicales.fr/mesh/D003640" }, { "@type": "ListItem", "position": 4, "name": "Déméthylation", "item": "https://questionsmedicales.fr/mesh/D000073398" } ] } }, { "@type": "MedicalWebPage", "name": "Article complet : Déméthylation - Questions et réponses", "headline": "Questions et réponses médicales fréquentes sur Déméthylation", "description": "Une compilation de questions et réponses structurées, validées par des experts médicaux.", "datePublished": "2025-05-09", "inLanguage": "fr", "hasPart": [ { "@type": "MedicalWebPage", "name": "Diagnostic", "headline": "Diagnostic sur Déméthylation", "description": "Comment diagnostiquer une déméthylation anormale ?\nQuels marqueurs sont utilisés pour la déméthylation ?\nQuels tests sanguins peuvent indiquer une déméthylation ?\nLa biopsie est-elle nécessaire pour diagnostiquer la déméthylation ?\nQuels symptômes peuvent alerter sur une déméthylation ?", "url": "https://questionsmedicales.fr/mesh/D000073398?mesh_terms=Ventricular+Function,+Left&page=2#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Déméthylation", "description": "Quels symptômes sont associés à la déméthylation ?\nLa déméthylation peut-elle causer des maladies ?\nY a-t-il des signes cliniques de déméthylation ?\nLes symptômes varient-ils selon l'âge ?\nLa déméthylation affecte-t-elle le système immunitaire ?", "url": "https://questionsmedicales.fr/mesh/D000073398?mesh_terms=Ventricular+Function,+Left&page=2#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Déméthylation", "description": "Comment prévenir la déméthylation ?\nLes suppléments peuvent-ils aider ?\nLe stress influence-t-il la déméthylation ?\nL'exercice physique a-t-il un impact ?\nLes toxines environnementales jouent-elles un rôle ?", "url": "https://questionsmedicales.fr/mesh/D000073398?mesh_terms=Ventricular+Function,+Left&page=2#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Déméthylation", "description": "Quels traitements existent pour la déméthylation ?\nLa nutrition peut-elle influencer la déméthylation ?\nLes thérapies épigénétiques sont-elles efficaces ?\nPeut-on prévenir la déméthylation par des médicaments ?\nLes traitements sont-ils personnalisés ?", "url": "https://questionsmedicales.fr/mesh/D000073398?mesh_terms=Ventricular+Function,+Left&page=2#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Déméthylation", "description": "Quelles complications peuvent survenir ?\nLa déméthylation est-elle réversible ?\nQuels risques sont associés à la déméthylation ?\nLa déméthylation peut-elle affecter la fertilité ?\nY a-t-il des effets à long terme ?", "url": "https://questionsmedicales.fr/mesh/D000073398?mesh_terms=Ventricular+Function,+Left&page=2#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Déméthylation", "description": "Quels sont les facteurs de risque de déméthylation ?\nL'hérédité joue-t-elle un rôle ?\nLes maladies chroniques augmentent-elles le risque ?\nLe mode de vie influence-t-il la déméthylation ?\nLes infections peuvent-elles affecter la déméthylation ?", "url": "https://questionsmedicales.fr/mesh/D000073398?mesh_terms=Ventricular+Function,+Left&page=2#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer une déméthylation anormale ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Des tests génétiques et des analyses de l'ADN peuvent révéler des modifications de méthylation." } }, { "@type": "Question", "name": "Quels marqueurs sont utilisés pour la déméthylation ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Les marqueurs épigénétiques comme 5-méthylcytosine sont souvent analysés." } }, { "@type": "Question", "name": "Quels tests sanguins peuvent indiquer une déméthylation ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de métabolites et d'ADN circulant peuvent fournir des indices." } }, { "@type": "Question", "name": "La biopsie est-elle nécessaire pour diagnostiquer la déméthylation ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Une biopsie peut être nécessaire pour des analyses plus précises des tissus." } }, { "@type": "Question", "name": "Quels symptômes peuvent alerter sur une déméthylation ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes variés comme des troubles neurologiques ou des cancers peuvent survenir." } }, { "@type": "Question", "name": "Quels symptômes sont associés à la déméthylation ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes peuvent inclure des troubles cognitifs, des anomalies de croissance et des cancers." } }, { "@type": "Question", "name": "La déméthylation peut-elle causer des maladies ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle est liée à des maladies comme le cancer et des troubles génétiques." } }, { "@type": "Question", "name": "Y a-t-il des signes cliniques de déméthylation ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Des signes cliniques peuvent inclure des changements de comportement et des anomalies physiques." } }, { "@type": "Question", "name": "Les symptômes varient-ils selon l'âge ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les symptômes peuvent se manifester différemment selon l'âge et le développement." } }, { "@type": "Question", "name": "La déméthylation affecte-t-elle le système immunitaire ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Elle peut altérer la réponse immunitaire, augmentant le risque d'infections." } }, { "@type": "Question", "name": "Comment prévenir la déméthylation ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Une alimentation équilibrée et un mode de vie sain peuvent aider à prévenir la déméthylation." } }, { "@type": "Question", "name": "Les suppléments peuvent-ils aider ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Des suppléments comme l'acide folique peuvent soutenir la méthylation." } }, { "@type": "Question", "name": "Le stress influence-t-il la déméthylation ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le stress chronique peut affecter les mécanismes de méthylation." } }, { "@type": "Question", "name": "L'exercice physique a-t-il un impact ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "L'exercice régulier peut améliorer la santé épigénétique et la méthylation." } }, { "@type": "Question", "name": "Les toxines environnementales jouent-elles un rôle ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'exposition à certaines toxines peut perturber les mécanismes de méthylation." } }, { "@type": "Question", "name": "Quels traitements existent pour la déméthylation ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les traitements incluent des thérapies géniques et des médicaments ciblés." } }, { "@type": "Question", "name": "La nutrition peut-elle influencer la déméthylation ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certains nutriments comme l'acide folique peuvent moduler la méthylation." } }, { "@type": "Question", "name": "Les thérapies épigénétiques sont-elles efficaces ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Elles montrent un potentiel prometteur dans le traitement de certains cancers." } }, { "@type": "Question", "name": "Peut-on prévenir la déméthylation par des médicaments ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Des inhibiteurs spécifiques peuvent être utilisés pour prévenir la déméthylation." } }, { "@type": "Question", "name": "Les traitements sont-ils personnalisés ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les traitements peuvent être adaptés en fonction du profil génétique du patient." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications incluent des cancers, des troubles neurologiques et des maladies auto-immunes." } }, { "@type": "Question", "name": "La déméthylation est-elle réversible ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Certaines modifications peuvent être réversibles, mais pas toutes." } }, { "@type": "Question", "name": "Quels risques sont associés à la déméthylation ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Les risques incluent des maladies chroniques et des troubles de développement." } }, { "@type": "Question", "name": "La déméthylation peut-elle affecter la fertilité ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle peut influencer la fertilité en altérant la fonction reproductive." } }, { "@type": "Question", "name": "Y a-t-il des effets à long terme ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Des effets à long terme peuvent inclure des prédispositions à diverses maladies." } }, { "@type": "Question", "name": "Quels sont les facteurs de risque de déméthylation ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent l'alimentation, le stress, et l'exposition à des toxines." } }, { "@type": "Question", "name": "L'hérédité joue-t-elle un rôle ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des facteurs génétiques peuvent influencer la déméthylation." } }, { "@type": "Question", "name": "Les maladies chroniques augmentent-elles le risque ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Certaines maladies chroniques peuvent augmenter le risque de déméthylation." } }, { "@type": "Question", "name": "Le mode de vie influence-t-il la déméthylation ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, un mode de vie malsain peut favoriser la déméthylation." } }, { "@type": "Question", "name": "Les infections peuvent-elles affecter la déméthylation ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Certaines infections peuvent perturber les mécanismes de méthylation." } } ] } ] }

Sources (10000 au total)

Association of arterial properties with left ventricular morphology and function in the community.

Arterial structural and functional remodeling is recognized as a key determinant of incident heart failure, although the contribution of arterial properties on left ventricular (LV) remodeling is not ... The study cohort consisted of 539 participants without overt cardiac disease who underwent extensive cardiovascular examination. Aortic root diameter was measured by two-dimensional echocardiography a... Aortic root diameter and ePWV were correlated with LV mass index and LVGLS, while only ePWV was related to E / e' ratio. In multivariable analysis, aortic root diameter and ePWV were significantly rel... Aortic root size and ePWV were independently associated with unfavorable LV remodeling in individuals free of cardiac disease, which might provide useful information into the pathogenesis-linking arte...

Predicting poor left ventricular function recovery in Peripartum cardiomyopathy.

Peripartum cardiomyopathy (PPCM) is a rare type of cardiomyopathy that manifests as acute heart failure associated with pregnancy. Delays in early identification result in poor recovery of left ventri... All baseline and clinical parameters were prospectively collected from a cohort of patients with PPCM admitted to Dr. Hasan Sadikin General Hospital in Bandung, Indonesia between January 2014 and Dece... This prospective cohort study included 113 patients with PPCM (84 recovered and 29 non-recovered patients). Significant mitral regurgitation (MR), left ventricular ejection fraction (LVEF) <30%, left ... PPCM recovery score is a convenient scoring system based on clinical and echocardiography assessment that may assist in distinguishing which patients are more likely to develop poor LV function recove...

Evaluation of left ventricular systolic function in patients with iron deficiency anemia based on non-invasive left ventricular pressure-strain loops.

Iron deficiency anemia (IDA) is a common health problem worldwide. The objective of this study was to noninvasively and quantitatively evaluate early changes in left ventricular systolic function in p... Sixty-two patients with IDA were selected and divided into two groups based on hemoglobin (Hb) concentration: Group B with Hb > 9 g/dL and group C with 6 g/dL < Hb < 9 g/dL. Thirty-three healthy indiv... Compared to group A, GWI and GCW were reduced in group B (both P < 0.01). Compared with groups B and A, GLS, GWI, GCW and GWE, and E/A were all diminished, and GWW, LVEDV, LVESV, and E/mean e' were al... LV-PSL allows noninvasive quantitative assessment of early impaired LV systolic function in IDA patients with preserved LV ejection fraction, and GWI has high sensitivity and specificity compared with...

Association between spirometry pattern, left ventricular diastolic function, and mortality.

Spirometric abnormalities have been related to incident heart failure in general population, who generally have preserved left ventricular ejection fraction (LVEF). We aimed to investigate the associa... Subjects presenting with exertional dyspnoea and received spirometry and echocardiography were eligible for this study. Forced vital capacity (FVC) and forced expiratory volume in the first second (FE... Among a total of 8669 participants (65.8 ± 16.3 years, 56% men), 3739 (43.1%), 829 (9.6%), 3050 (35.2%) and 1051 (12.1%) had normal, obstructive, restrictive and mixed spirometry pattern, respectively... The restrictive spirometry pattern or the declined FVC was associated with left ventricular diastolic dysfunction, which aggravated the long-term mortality in the ambulatory dyspnoeic subjects....

Coronary microvascular dysfunction in Takotsubo syndrome and associations with left ventricular function.

Coronary microvascular dysfunction (CMD) has been proposed as an important pathophysiological mechanism in Takotsubo syndrome (TTS). Our aims were (i) to evaluate and compare levels of CMD in patients... We conducted a prospective study of 27 female TTS patients and an equally sized, age- and gender-matched, cohort of INOCA patients. Coronary microvascular function was quantified invasively using the ... Coronary microvascular dysfunction is common in patients with TTS and more frequent than in patients with INOCA. CMD in TTS is more severe in the apical compared with the midventricular phenotype of t...

Assessment of left ventricular structure and function in preeclampsia subtypes by multimodal echocardiography.

To explore left ventricular structural/functional abnormalities in preeclampsia patients by using multimodal echocardiography and to analyze the cardiac impact in preeclampsia subtypes.... A total of 103 individuals, including 64 preeclampsia patients and 39 healthy pregnant women were recruited for this study from 2019 to 2021. There were 34 patients with preeclampsia with severe featu... EO-SPE patients showed decreased left ventricular ejection fractions, peak longitudinal systolic strain at apical four-chambers, peak circumferential, and radial systolic strain at the apical and mitr... EO-SPE patients were characterized by left ventricular injury and systolic function reduced. LO-SPE patients were characterized by left ventricular hypertrophy and reduced diastolic function. Multimod...