Titre : Metalloproteases

Metalloproteases : Questions médicales fréquentes

Termes MeSH sélectionnés :

Colonic Polyps
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?\nLes antécédents familiaux jouent-ils un rôle ?\nLe tabagisme est-il un facteur de risque ?\nLe stress chronique influence-t-il le risque ?\nL'exposition à des toxines est-elle un facteur ?", "url": "https://questionsmedicales.fr/mesh/D045726?mesh_terms=Colonic+Polyps&page=2#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer une dysfonction des métalloprotéases ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Des tests sanguins et des biopsies tissulaires peuvent évaluer l'activité des métalloprotéases." } }, { "@type": "Question", "name": "Quels marqueurs sont utilisés pour le diagnostic ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Les niveaux de métalloprotéases dans le sérum ou les tissus peuvent servir de marqueurs diagnostiques." } }, { "@type": "Question", "name": "Les imageries sont-elles utiles pour le diagnostic ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'imagerie peut aider à visualiser les tissus affectés par des déséquilibres enzymatiques." } }, { "@type": "Question", "name": "Quels tests génétiques sont disponibles ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Des tests génétiques peuvent identifier des mutations affectant la production de métalloprotéases." } }, { "@type": "Question", "name": "Comment évaluer l'activité enzymatique ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Des tests enzymatiques spécifiques mesurent l'activité des métalloprotéases dans les échantillons." } }, { "@type": "Question", "name": "Quels symptômes indiquent une surproduction de métalloprotéases ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Une inflammation, des douleurs articulaires et des lésions tissulaires peuvent survenir." } }, { "@type": "Question", "name": "Les symptômes varient-ils selon le type de métalloprotéases ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, différents types de métalloprotéases peuvent causer des symptômes variés selon les tissus affectés." } }, { "@type": "Question", "name": "Quels signes cliniques sont associés à une déficience ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Une cicatrisation lente et des anomalies dans la matrice extracellulaire peuvent être observées." } }, { "@type": "Question", "name": "Les symptômes sont-ils toujours visibles ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Non, certaines dysfonctions peuvent être asymptomatiques jusqu'à des stades avancés." } }, { "@type": "Question", "name": "Comment les symptômes évoluent-ils avec l'âge ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "L'activité des métalloprotéases peut augmenter avec l'âge, aggravant les symptômes dégénératifs." } }, { "@type": "Question", "name": "Comment prévenir les maladies liées aux métalloprotéases ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Un mode de vie sain, incluant une alimentation équilibrée et de l'exercice, peut aider." } }, { "@type": "Question", "name": "Les suppléments nutritionnels sont-ils utiles ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Certains suppléments, comme les antioxydants, peuvent soutenir la fonction des métalloprotéases." } }, { "@type": "Question", "name": "L'évitement de certains aliments est-il recommandé ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Oui, réduire les aliments pro-inflammatoires peut aider à réguler l'activité des métalloprotéases." } }, { "@type": "Question", "name": "Le contrôle du stress est-il important ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le stress peut influencer l'activité des métalloprotéases, donc sa gestion est cruciale." } }, { "@type": "Question", "name": "Les examens réguliers sont-ils nécessaires ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Des examens réguliers peuvent aider à détecter précocement des déséquilibres enzymatiques." } }, { "@type": "Question", "name": "Quels traitements ciblent les métalloprotéases ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Des inhibiteurs spécifiques des métalloprotéases sont utilisés pour traiter certaines maladies." } }, { "@type": "Question", "name": "Les thérapies géniques sont-elles une option ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la thérapie génique peut corriger des mutations affectant la production de métalloprotéases." } }, { "@type": "Question", "name": "Comment les anti-inflammatoires aident-ils ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Ils peuvent réduire l'inflammation causée par une suractivité des métalloprotéases." } }, { "@type": "Question", "name": "Les traitements sont-ils personnalisés ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les traitements peuvent être adaptés en fonction du type de métalloprotéases impliqué." } }, { "@type": "Question", "name": "Quels sont les effets secondaires des inhibiteurs ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Les inhibiteurs peuvent causer des effets secondaires comme des troubles gastro-intestinaux." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec une suractivité ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des maladies dégénératives, comme l'arthrite, peuvent résulter d'une suractivité des métalloprotéases." } }, { "@type": "Question", "name": "Les complications sont-elles réversibles ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Certaines complications peuvent être réversibles avec un traitement approprié, d'autres non." } }, { "@type": "Question", "name": "Comment les complications affectent-elles la qualité de vie ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Elles peuvent entraîner des douleurs chroniques et une mobilité réduite, affectant la qualité de vie." } }, { "@type": "Question", "name": "Les complications sont-elles prévisibles ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Certaines complications peuvent être prévisibles en surveillant les niveaux d'activité enzymatique." } }, { "@type": "Question", "name": "Quelles sont les complications liées à une déficience ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Une cicatrisation lente et des infections peuvent survenir en raison d'une déficience en métalloprotéases." } }, { "@type": "Question", "name": "Quels facteurs augmentent le risque de dysfonction ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "L'âge, le mode de vie sédentaire et une alimentation déséquilibrée augmentent le risque." } }, { "@type": "Question", "name": "Les antécédents familiaux jouent-ils un rôle ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des antécédents familiaux de maladies liées aux métalloprotéases peuvent augmenter le risque." } }, { "@type": "Question", "name": "Le tabagisme est-il un facteur de risque ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le tabagisme peut exacerber l'activité des métalloprotéases et augmenter les maladies associées." } }, { "@type": "Question", "name": "Le stress chronique influence-t-il le risque ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le stress chronique peut perturber l'équilibre des métalloprotéases, augmentant le risque de maladies." } }, { "@type": "Question", "name": "L'exposition à des toxines est-elle un facteur ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'exposition à certaines toxines environnementales peut affecter l'activité des métalloprotéases." } } ] } ] }

Sous-catégories

20 au total
└─

Metalloendopeptidases

Metalloendopeptidases D008666 - D08.811.277.656.675.374
└─

Metalloexopeptidases

Metalloexopeptidases D045727 - D08.811.277.656.675.555
└─└─

Collagenases

Collagenases D017364 - D08.811.277.656.675.374.205
└─└─

Enzymes de conversion de l'endothéline

Endothelin-Converting Enzymes D000072396 - D08.811.277.656.675.374.229
└─└─

Gelatinases

Gelatinases D018093 - D08.811.277.656.675.374.252
└─└─

Insulinase

Insulysin D007339 - D08.811.277.656.675.374.300
└─└─

Lysostaphin

Lysostaphin D008248 - D08.811.277.656.675.374.452
└─└─

Matrix metalloproteinases

Matrix Metalloproteinases D020782 - D08.811.277.656.675.374.525
└─└─

Procollagen peptidase

Procollagen N-Endopeptidase D011348 - D08.811.277.656.675.374.664
└─└─

Bacillus thermoproteolyticus neutral proteinase

Thermolysin D013820 - D08.811.277.656.675.374.827
└─└─

Carboxypeptidases A

Carboxypeptidases A D043422 - D08.811.277.656.675.555.350
└─└─

Cystinyl aminopeptidase

Cystinyl Aminopeptidase D010122 - D08.811.277.656.675.555.400
└─└─

Glutamate carboxypeptidase II

Glutamate Carboxypeptidase II D043425 - D08.811.277.656.675.555.500
└─└─

Glutamyl aminopeptidase

Glutamyl Aminopeptidase D043384 - D08.811.277.656.675.555.600
└─└─

Leucyl Aminopeptidase

Leucyl Aminopeptidase D007931 - D08.811.277.656.675.555.700
└─└─

Lysine carboxypeptidase

Lysine Carboxypeptidase D001121 - D08.811.277.656.675.555.750
└─└─└─

Microbial collagenase

Microbial Collagenase D003012 - D08.811.277.656.675.374.205.500
└─└─└─└─

Matrix metalloproteinase 14

Matrix Metalloproteinase 14 D053511 - D08.811.277.656.675.374.525.300.500
└─└─└─└─

Matrix metalloproteinase 15

Matrix Metalloproteinase 15 D053517 - D08.811.277.656.675.374.525.300.625
└─└─└─└─

Matrix metalloproteinase 16

Matrix Metalloproteinase 16 D053513 - D08.811.277.656.675.374.525.300.750

Sources (7634 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....