Titre : Arachidonate 12-lipoxygenase

Arachidonate 12-lipoxygenase : Questions médicales fréquentes

Termes MeSH sélectionnés :

Colonic Polyps
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lipoxygenases", "item": "https://questionsmedicales.fr/mesh/D001091" }, { "@type": "ListItem", "position": 9, "name": "Arachidonate 12-lipoxygenase", "item": "https://questionsmedicales.fr/mesh/D001092" } ] } }, { "@type": "MedicalWebPage", "name": "Article complet : Arachidonate 12-lipoxygenase - Questions et réponses", "headline": "Questions et réponses médicales fréquentes sur Arachidonate 12-lipoxygenase", "description": "Une compilation de questions et réponses structurées, validées par des experts médicaux.", "datePublished": "2025-05-10", "inLanguage": "fr", "hasPart": [ { "@type": "MedicalWebPage", "name": "Diagnostic", "headline": "Diagnostic sur Arachidonate 12-lipoxygenase", "description": "Comment diagnostiquer une dysfonction de l'arachidonate 12-lipoxygenase ?\nQuels marqueurs biochimiques sont associés à cette enzyme ?\nY a-t-il des tests génétiques pour l'arachidonate 12-lipoxygenase ?\nQuels symptômes peuvent indiquer un problème avec cette enzyme ?\nComment l'imagerie peut-elle aider dans le diagnostic ?", "url": "https://questionsmedicales.fr/mesh/D001092?mesh_terms=Colonic+Polyps&page=2#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Arachidonate 12-lipoxygenase", "description": "Quels sont les symptômes d'une suractivité de l'enzyme ?\nL'arachidonate 12-lipoxygenase est-elle liée à des maladies spécifiques ?\nQuels signes cliniques peuvent indiquer une déficience ?\nComment l'inflammation se manifeste-t-elle cliniquement ?\nLes symptômes varient-ils selon l'âge ?", "url": "https://questionsmedicales.fr/mesh/D001092?mesh_terms=Colonic+Polyps&page=2#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Arachidonate 12-lipoxygenase", "description": "Comment prévenir les troubles liés à l'enzyme ?\nY a-t-il des exercices recommandés ?\nLe stress a-t-il un impact sur l'activité de l'enzyme ?\nDes suppléments peuvent-ils aider à la prévention ?\nLa gestion du poids est-elle importante ?", "url": "https://questionsmedicales.fr/mesh/D001092?mesh_terms=Colonic+Polyps&page=2#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Arachidonate 12-lipoxygenase", "description": "Quels traitements ciblent l'arachidonate 12-lipoxygenase ?\nLes anti-inflammatoires non stéroïdiens sont-ils efficaces ?\nY a-t-il des thérapies alternatives recommandées ?\nComment la diététique influence-t-elle l'activité de l'enzyme ?\nLes corticostéroïdes sont-ils utilisés dans ce contexte ?", "url": "https://questionsmedicales.fr/mesh/D001092?mesh_terms=Colonic+Polyps&page=2#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Arachidonate 12-lipoxygenase", "description": "Quelles complications peuvent survenir avec une suractivité de l'enzyme ?\nL'arachidonate 12-lipoxygenase est-elle liée au cancer ?\nComment les maladies auto-immunes sont-elles liées à cette enzyme ?\nDes troubles neurologiques peuvent-ils être associés ?\nQuels effets à long terme peut avoir une inflammation chronique ?", "url": "https://questionsmedicales.fr/mesh/D001092?mesh_terms=Colonic+Polyps&page=2#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Arachidonate 12-lipoxygenase", "description": "Quels facteurs de risque sont associés à une dysfonction de l'enzyme ?\nL'hérédité joue-t-elle un rôle dans les troubles liés à l'enzyme ?\nLe mode de vie sédentaire est-il un facteur de risque ?\nLe stress chronique influence-t-il l'activité de l'enzyme ?\nLes infections fréquentes sont-elles un facteur de risque ?", "url": "https://questionsmedicales.fr/mesh/D001092?mesh_terms=Colonic+Polyps&page=2#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer une dysfonction de l'arachidonate 12-lipoxygenase ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Des tests sanguins et des analyses biochimiques peuvent évaluer l'activité de l'enzyme." } }, { "@type": "Question", "name": "Quels marqueurs biochimiques sont associés à cette enzyme ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Les produits de dégradation des acides gras, comme les leucotriènes, peuvent être mesurés." } }, { "@type": "Question", "name": "Y a-t-il des tests génétiques pour l'arachidonate 12-lipoxygenase ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des tests génétiques peuvent identifier des mutations affectant l'enzyme." } }, { "@type": "Question", "name": "Quels symptômes peuvent indiquer un problème avec cette enzyme ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes inflammatoires, comme des douleurs articulaires, peuvent survenir." } }, { "@type": "Question", "name": "Comment l'imagerie peut-elle aider dans le diagnostic ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "L'imagerie peut détecter des inflammations ou des lésions associées à des troubles métaboliques." } }, { "@type": "Question", "name": "Quels sont les symptômes d'une suractivité de l'enzyme ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Une suractivité peut entraîner des inflammations chroniques et des douleurs." } }, { "@type": "Question", "name": "L'arachidonate 12-lipoxygenase est-elle liée à des maladies spécifiques ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle est impliquée dans des maladies comme l'asthme et l'arthrite." } }, { "@type": "Question", "name": "Quels signes cliniques peuvent indiquer une déficience ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Des signes comme une susceptibilité accrue aux infections peuvent apparaître." } }, { "@type": "Question", "name": "Comment l'inflammation se manifeste-t-elle cliniquement ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Elle peut se manifester par des rougeurs, des gonflements et des douleurs localisées." } }, { "@type": "Question", "name": "Les symptômes varient-ils selon l'âge ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les symptômes peuvent être plus prononcés chez les personnes âgées en raison de comorbidités." } }, { "@type": "Question", "name": "Comment prévenir les troubles liés à l'enzyme ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Une alimentation équilibrée et un mode de vie sain peuvent aider à prévenir les troubles." } }, { "@type": "Question", "name": "Y a-t-il des exercices recommandés ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des exercices réguliers peuvent améliorer la santé globale et réduire l'inflammation." } }, { "@type": "Question", "name": "Le stress a-t-il un impact sur l'activité de l'enzyme ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le stress peut exacerber l'inflammation et affecter l'activité enzymatique." } }, { "@type": "Question", "name": "Des suppléments peuvent-ils aider à la prévention ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Des suppléments d'oméga-3 peuvent contribuer à une meilleure régulation de l'enzyme." } }, { "@type": "Question", "name": "La gestion du poids est-elle importante ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Oui, maintenir un poids santé peut réduire le risque d'inflammation chronique." } }, { "@type": "Question", "name": "Quels traitements ciblent l'arachidonate 12-lipoxygenase ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Des inhibiteurs spécifiques de l'enzyme peuvent être utilisés pour réduire l'inflammation." } }, { "@type": "Question", "name": "Les anti-inflammatoires non stéroïdiens sont-ils efficaces ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, ils peuvent réduire l'inflammation en inhibant la voie de l'acide arachidonique." } }, { "@type": "Question", "name": "Y a-t-il des thérapies alternatives recommandées ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Des thérapies comme l'acupuncture ou les oméga-3 peuvent aider à gérer les symptômes." } }, { "@type": "Question", "name": "Comment la diététique influence-t-elle l'activité de l'enzyme ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Une alimentation riche en acides gras oméga-3 peut moduler l'activité de l'enzyme." } }, { "@type": "Question", "name": "Les corticostéroïdes sont-ils utilisés dans ce contexte ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Oui, ils sont souvent prescrits pour réduire l'inflammation associée." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec une suractivité de l'enzyme ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications comme des maladies cardiovasculaires et des troubles respiratoires peuvent survenir." } }, { "@type": "Question", "name": "L'arachidonate 12-lipoxygenase est-elle liée au cancer ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une surproduction de produits lipoxygénés peut être associée à certains cancers." } }, { "@type": "Question", "name": "Comment les maladies auto-immunes sont-elles liées à cette enzyme ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Une dysrégulation de l'enzyme peut contribuer à l'aggravation des maladies auto-immunes." } }, { "@type": "Question", "name": "Des troubles neurologiques peuvent-ils être associés ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des études suggèrent un lien entre l'activité de l'enzyme et certains troubles neurologiques." } }, { "@type": "Question", "name": "Quels effets à long terme peut avoir une inflammation chronique ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Une inflammation chronique peut entraîner des dommages tissulaires et des maladies dégénératives." } }, { "@type": "Question", "name": "Quels facteurs de risque sont associés à une dysfonction de l'enzyme ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Des facteurs comme l'obésité, le tabagisme et une mauvaise alimentation augmentent le risque." } }, { "@type": "Question", "name": "L'hérédité joue-t-elle un rôle dans les troubles liés à l'enzyme ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des antécédents familiaux de maladies inflammatoires peuvent augmenter le risque." } }, { "@type": "Question", "name": "Le mode de vie sédentaire est-il un facteur de risque ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, un mode de vie sédentaire peut contribuer à l'inflammation et à la dysfonction enzymatique." } }, { "@type": "Question", "name": "Le stress chronique influence-t-il l'activité de l'enzyme ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le stress chronique peut exacerber l'inflammation et affecter l'activité de l'enzyme." } }, { "@type": "Question", "name": "Les infections fréquentes sont-elles un facteur de risque ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des infections répétées peuvent perturber l'équilibre immunitaire et affecter l'enzyme." } } ] } ] }

Sources (7620 au total)

Colonoscopic-assisted laparoscopic wedge resection versus segmental colon resection for benign colonic polyps: a comparative cost analysis.

The colonoscopic-assisted laparoscopic wedge resection (CAL-WR) is proven to be an effective and safe alternative to a segmental colon resection (SCR) for large or complex benign colonic polyps that a... A single-centre 90-day 'in-hospital' comparative cost analysis was performed on patients undergoing CAL-WR or SCR for complex benign polyps between 2016 and 2020. The CAL-WR group consisted of 44 pati... Colonoscopic-assisted laparoscopic wedge resection was associated with significantly fewer complications (7% in the CAL-WR group vs. 45% in the SCR group, P < 0.001), shorter operation time (50 min in... Given the clinical and financial benefits, CAL-WR should be recommended for complex benign polyps that are not eligible for endoscopic resection before major surgery is considered....

Serum biomarkers of colonic polyps in patients with acromegaly: a meta-analysis and systematic review.

In the past few decades, acromegaly and colonic polyps have been associated with an increased risk of colorectal cancer. Previous studies highlighted the importance of serum biomarkers of colonic poly... We reviewed studies on serum biomarkers of colonic polyps in patients with acromegaly, published on PubMed, Embase, Cochrane Library, Medline, and Chinese databases from January 1, 1966, to May 8, 202... Eight articles were included in this study. The mean (standard deviation) concentrations of serum biomarkers for acromegaly with and without colorectal polyps were extracted from these studies. Meta-a... We present the first meta-analysis and systematic review of serum biomarkers in patients with acromegaly or colonic polyps. The prevalence of colonic lesion polyps, is associated with higher IGF-1 × U...

Performance and comparison of artificial intelligence and human experts in the detection and classification of colonic polyps.

The main aim of this study was to analyze the performance of different artificial intelligence (AI) models in endoscopic colonic polyp detection and classification and compare them with doctors with d... We searched the studies on Colonoscopy, Colonic Polyps, Artificial Intelligence, Machine Learning, and Deep Learning published before May 2020 in PubMed, EMBASE, Cochrane, and the citation index of th... A total of 16 studies were included for meta-analysis. Only one study (1/16) presented externally validated results. The area under the curve (AUC) of AI group, expert group and non-expert group for d... The performance of AI in polyp detection and classification is similar to that of human experts, with high sensitivity and moderate specificity. Different tasks may have an impact on the performance o...

Cold snare endoscopic mucosal resection for colon polyps: a systematic review and meta-analysis.

Cold snare endoscopic mucosal resection (CS-EMR) can reduce the risks associated with electrocautery during colon polyp resection. Data on efficacy are variable. This systematic review and meta-analys... We conducted a comprehensive literature search of multiple databases, from inception to March 2023, for studies addressing outcomes of CS-EMR for colon polyps. The weighted pooled estimates with 95 %C... 4137 articles were reviewed, and 16 studies, including 2592 polyps in 1922 patients (51.4 % female), were included. Overall, 54.4 % of polyps were adenomas, 45 % were sessile serrated lesions (SSLs), ... CS-EMR demonstrated an excellent safety profile for colon polyps, with variable recurrence rates based on polyp size and histology. Large prospective studies are needed to validate these findings....

AGA Clinical Practice Update on the Role of Artificial Intelligence in Colon Polyp Diagnosis and Management: Commentary.

The purpose of this American Gastroenterological Association (AGA) Institute Clinical Practice Update (CPU) is to review the available evidence and provide expert commentary on the current landscape o... This CPU was commissioned and approved by the AGA Institute Clinical Practice Updates Committee (CPUC) and the AGA Governing Board to provide timely guidance on a topic of high clinical importance to ...

Impact of margin ablation after EMR of large nonpedunculated colonic polyps in routine clinical practice.

Owing to its simplicity, effectiveness, and safety, EMR is the preferred treatment for the majority of large (≥20 mm) nonpedunculated colonic polyps (LNPCPs); however, residual and recurrent adenomas ... We analyzed data collected in 3 hospitals in Israel: Prospective data were available in 2 hospitals where margin thermal ablation with snare-tip soft coagulation (STSC) is routinely performed after EM... Data from 764 patients with 824 LNPCPs were analyzed. The patient and lesion characteristics were similar between the groups. Four hundred sixty-four LNPCPs were treated by TA-EMR and 360 LNPCPs by S-... TA-EMR leads to a significant reduction in post-EMR recurrence in routine clinical practice....

Polyp detection in the cecum and ascending colon by dye based chromoendoscopy - Is its routine use justified?

colonoscopy is the best method for detecting polyps, with a reduction in colorectal cancer mortality of 29% and reaching 47% for distal tumors. However, it fails to demonstrate a significant reduction... prospective, non-randomized clinical trial. Patients were divided into two groups. The first (G1) underwent a routine colonoscopy, followed by a second endoscopy assessment of ascending colon and cecu... In total, 203 patients were analyzed, 101 in the G1 and 102 in the G2. Newer polyps were identified in both groups after the second assessment with a significantly higher number of polyps detected in ... the second assessment with dye-based chromoendoscopy increases the detection of polyps in the ascending colon and cecum....

Do surface morphology and pit pattern have a role in predicting cancer for colon polyps in North America?

The surface morphology of colorectal polyps is well correlated with submucosal invasion in Eastern Countries but not in North America. We aimed to investigate associations between the Paris classifica... We retrospectively analyzed prospectively collected data of consecutive advanced endoscopic procedures conducted by a single surgeon between August 2017 and October 2018. The data included patients' d... The study consisted of 138 lesions, and the mean age was 67 ± 10 years. The most common polyp locations were cecum (n = 41, 30%) followed by ascending colon (n = 28, 20%), and sigmoid colon (n = 18, 1... Surface morphology and pit pattern can predict submucosal invasion in the North American patient population. Polyp morphology may aid polyp selection for advanced endoscopic interventions....