Titre : Inhibiteurs de la 5-alpha réductase

Inhibiteurs de la 5-alpha réductase : Questions médicales fréquentes

Termes MeSH sélectionnés :

Operon
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la DHT ?\nQuels symptômes indiquent un besoin d'inhibiteurs ?\nComment évaluer l'efficacité des inhibiteurs ?", "url": "https://questionsmedicales.fr/mesh/D058891?mesh_terms=Operon&page=4#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Inhibiteurs de la 5-alpha réductase", "description": "Quels sont les symptômes de l'hyperplasie bénigne de la prostate ?\nLa calvitie est-elle un symptôme lié à la DHT ?\nQuels effets secondaires peuvent survenir ?\nLes inhibiteurs affectent-ils la libido ?", "url": "https://questionsmedicales.fr/mesh/D058891?mesh_terms=Operon&page=4#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Inhibiteurs de la 5-alpha réductase", "description": "Peut-on prévenir l'hyperplasie bénigne de la prostate ?\nY a-t-il des mesures préventives pour la calvitie ?\nLes inhibiteurs peuvent-ils être utilisés préventivement ?\nQuels changements de mode de vie sont recommandés ?", "url": "https://questionsmedicales.fr/mesh/D058891?mesh_terms=Operon&page=4#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Inhibiteurs de la 5-alpha réductase", "description": "Quels médicaments sont des inhibiteurs de la 5-alpha réductase ?\nComment les inhibiteurs agissent-ils ?\nQuelle est la durée du traitement ?\nLes inhibiteurs sont-ils efficaces pour la calvitie ?", "url": "https://questionsmedicales.fr/mesh/D058891?mesh_terms=Operon&page=4#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Inhibiteurs de la 5-alpha réductase", "description": "Quelles complications peuvent survenir avec les inhibiteurs ?\nLes inhibiteurs augmentent-ils le risque de cancer ?\nComment gérer les effets secondaires ?\nLes complications sont-elles réversibles ?", "url": "https://questionsmedicales.fr/mesh/D058891?mesh_terms=Operon&page=4#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Inhibiteurs de la 5-alpha réductase", "description": "Quels sont les facteurs de risque de l'hyperplasie bénigne ?\nLa génétique joue-t-elle un rôle dans la calvitie ?\nLe mode de vie influence-t-il la DHT ?\nL'âge est-il un facteur de risque pour la calvitie ?", "url": "https://questionsmedicales.fr/mesh/D058891?mesh_terms=Operon&page=4#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer une hyperplasie bénigne de la prostate ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Un examen physique, des tests urinaires et un dosage du PSA aident au diagnostic." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour évaluer la DHT ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Un dosage sanguin de la DHT peut être effectué pour évaluer les niveaux hormonaux." } }, { "@type": "Question", "name": "Quels symptômes indiquent un besoin d'inhibiteurs ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes urinaires comme des difficultés à uriner peuvent indiquer un besoin." } }, { "@type": "Question", "name": "Comment évaluer l'efficacité des inhibiteurs ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "L'efficacité est évaluée par l'amélioration des symptômes et la réduction du PSA." } }, { "@type": "Question", "name": "Quels sont les symptômes de l'hyperplasie bénigne de la prostate ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes incluent des mictions fréquentes, un jet urinaire faible et des douleurs." } }, { "@type": "Question", "name": "La calvitie est-elle un symptôme lié à la DHT ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la DHT est impliquée dans la perte de cheveux androgénétique chez les hommes." } }, { "@type": "Question", "name": "Quels effets secondaires peuvent survenir ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Les effets secondaires incluent la dysfonction érectile, la réduction de la libido et la gynécomastie." } }, { "@type": "Question", "name": "Les inhibiteurs affectent-ils la libido ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certains patients peuvent éprouver une diminution de la libido en raison des inhibiteurs." } }, { "@type": "Question", "name": "Peut-on prévenir l'hyperplasie bénigne de la prostate ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Une alimentation saine et un mode de vie actif peuvent aider à réduire le risque." } }, { "@type": "Question", "name": "Y a-t-il des mesures préventives pour la calvitie ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Des soins capillaires appropriés et des traitements précoces peuvent aider à prévenir la calvitie." } }, { "@type": "Question", "name": "Les inhibiteurs peuvent-ils être utilisés préventivement ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Ils ne sont généralement pas utilisés en prévention, mais pour traiter des symptômes existants." } }, { "@type": "Question", "name": "Quels changements de mode de vie sont recommandés ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Une alimentation équilibrée, l'exercice régulier et la gestion du stress sont conseillés." } }, { "@type": "Question", "name": "Quels médicaments sont des inhibiteurs de la 5-alpha réductase ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Les médicaments comme le finastéride et le dutastéride sont des inhibiteurs connus." } }, { "@type": "Question", "name": "Comment les inhibiteurs agissent-ils ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Ils bloquent la conversion de la testostérone en DHT, réduisant ainsi les symptômes." } }, { "@type": "Question", "name": "Quelle est la durée du traitement ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Le traitement peut durer plusieurs mois avant d'observer des résultats significatifs." } }, { "@type": "Question", "name": "Les inhibiteurs sont-ils efficaces pour la calvitie ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Oui, ils peuvent ralentir la perte de cheveux et favoriser la repousse chez certains patients." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec les inhibiteurs ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Des complications comme la dysfonction érectile et des troubles hormonaux peuvent survenir." } }, { "@type": "Question", "name": "Les inhibiteurs augmentent-ils le risque de cancer ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Des études montrent des résultats contradictoires, mais un suivi médical est recommandé." } }, { "@type": "Question", "name": "Comment gérer les effets secondaires ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Consulter un médecin pour ajuster le traitement ou envisager des alternatives est conseillé." } }, { "@type": "Question", "name": "Les complications sont-elles réversibles ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Certaines complications peuvent être réversibles après l'arrêt du traitement, mais pas toutes." } }, { "@type": "Question", "name": "Quels sont les facteurs de risque de l'hyperplasie bénigne ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "L'âge, l'obésité et des antécédents familiaux augmentent le risque d'hyperplasie bénigne." } }, { "@type": "Question", "name": "La génétique joue-t-elle un rôle dans la calvitie ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la génétique est un facteur majeur dans la perte de cheveux androgénétique." } }, { "@type": "Question", "name": "Le mode de vie influence-t-il la DHT ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Un mode de vie sédentaire et une mauvaise alimentation peuvent augmenter les niveaux de DHT." } }, { "@type": "Question", "name": "L'âge est-il un facteur de risque pour la calvitie ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le risque de calvitie augmente avec l'âge, surtout chez les hommes." } } ] } ] }

Sources (185 au total)

Horizontal gene transfer of the Mer operon is associated with large effects on the transcriptome and increased tolerance to mercury in nitrogen-fixing bacteria.

Mercury (Hg) is highly toxic and has the potential to cause severe health problems for humans and foraging animals when transported into edible plant parts. Soil rhizobia that form symbiosis with legu... Our analyses identified multiple structurally conserved merA homologs in the genomes of Sinorhizobium medicae and Rhizobium leguminosarum but only the strains that possessed a Mer operon exhibited 10-... Mer operons have not been previously reported in nitrogen-fixing rhizobia. This study demonstrates a pivotal role of the Mer operon in effective mercury detoxification and hypertolerance in nitrogen-f...

The AtoC family response regulator upregulates an operon encoding putative outer membrane proteins sorted by type IX secretion system in Porphyromonas gingivalis.

Porphyromonas gingivalis, a keystone periodontopathogen, has multiple two-component systems that are thought to modulate virulence. In this study, we focused on PGN_0775 response regulator (RR), an At... Comparative proteomic analyses comprising two-dimensional electrophoresis and peptide mass fingerprinting were applied to total protein samples from parent (WT) and atoC gene knockout (KO) strains to ... Five protein spots with fluctuating expression levels were identified in pgn_0775 KO strains along with their masses and physiological features, which contained two hypothetical proteins with higher e... The AtoC RR homolog in P. gingivalis upregulates the expression of the operon encoding potentially antigenic proteins retained on the cell surface; thus, it could be a promising target for P. gingival...

Mycobacterium tuberculosis transcriptional regulator Rv1019 is upregulated in hypoxia, and negatively regulates Rv3230c-Rv3229c operon encoding enzymes in the oleic acid biosynthetic pathway.

The main obstacle in eradicating tuberculosis is the ability of Mycobacterium tuberculosis to remain dormant in the host, and then to get reactivated even years later under immunocompromised condition...

In-silico analyses provide strong statistical evidence for intra-species recombination events of the gyrA and CmeABC operon loci contributing to the continued emergence of resistance to fluoroquinolones in natural populations of Campylobacter jejuni.

The continued emergence of Campylobacter jejuni strains resistant to fluoroquinolones (FQs) has posed a significant threat to global public health, leading frequently to undesirable outcomes of human ... We applied a large array of algorithms, imbedded in the SplitsTree and RDP4 software packages, to analyse the DNA sequences of the chromosomal loci, including the gyrA gene and the CmeABC operon, to i... The SplitsTree analyses of the above genetic loci resulted in several parallelograms with the bootstrap values being in a range of 94.7 to 100, with the high fit estimates being 99.3 to 100. These ana... These findings strongly suggest that the genetic recombination of the chromosomal regions involving gyrA, CmeABC, and their adjacent loci may be an additional mechanism underlying the constant emergen...

Prevalence of the fimbrial operon mrkABCD, mrkA expression, biofilm formation and effect of biocides on biofilm formation in carbapenemase-producing Klebsiella pneumoniae isolates belonging or not belonging to high-risk clones.

The role of mrkA adhesin expression, biofilm production, biofilm viability and biocides in the biofilm of carbapenemase-producing Klebsiella pneumoniae isolates was investigated.... Seventeen isolates representing different sequence types and carbapenemases were investigated. mrkA expression was determined by real-time reverse transcription polymerase chain reaction. Biofilm prod... mrkA expression ranged from 28.2 to 1.3 [high or intermediate level; 64% of high-risk (HR) clones] and from 21.5 to 1.3 (50% of non-HR clones). At 25°C, biofilm formation was observed in 41% of isolat... Biofilm formation in carbapenemase-producing K. pneumoniae is related to mrkA expression. Biofilm formation is affected by temperature (37°C>25°C), whereas humidity has little effect. Biofilm viabilit...

Improved BioCyc Operon Prediction: Revisiting the Operon Prediction Problem.

Operon prediction is a valuable component of microbial-genome annotation because operon organization can yield inferences about gene function, and because knowledge of operon structure can aid the int... We present a number of improvements to the existing Pathway Tools operon predictor based mostly on 7 new features that we hypothesized would increase its performance. The new features include shared G... We evaluated the proposed 7 new features and found that the addition of 6 of them improved the performance of the operon predictor from 79.55% to 83.49%, a decrease in error rate of 19.3%. When gene e... Although some of the new features had strong predictive value individually, when combined with the other features they did not have a large impact on predictive accuracy, suggesting that they were not...