Titre : ADN bactérien

ADN bactérien : Questions médicales fréquentes

Termes MeSH sélectionnés :

Methicillin-Resistant Staphylococcus aureus
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"https://questionsmedicales.fr/mesh/D004269?mesh_terms=Methicillin-Resistant+Staphylococcus+aureus&page=2#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur ADN bactérien", "description": "Quels symptômes indiquent une infection bactérienne ?\nComment l'ADN bactérien influence-t-il les symptômes ?\nLes symptômes varient-ils selon le type de bactérie ?\nQuels symptômes sont associés aux infections urinaires bactériennes ?\nComment reconnaître une infection bactérienne grave ?", "url": "https://questionsmedicales.fr/mesh/D004269?mesh_terms=Methicillin-Resistant+Staphylococcus+aureus&page=2#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur ADN bactérien", "description": "Quelles mesures préventives réduisent les infections bactériennes ?\nComment la vaccination aide-t-elle à prévenir les infections ?\nPourquoi est-il important de compléter les traitements antibiotiques ?\nQuels rôles jouent l'hygiène personnelle dans la prévention ?\nComment éviter les infections lors de procédures médicales ?", "url": "https://questionsmedicales.fr/mesh/D004269?mesh_terms=Methicillin-Resistant+Staphylococcus+aureus&page=2#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur ADN bactérien", "description": "Quels antibiotiques ciblent l'ADN bactérien ?\nComment les antibiotiques agissent-ils sur l'ADN bactérien ?\nQuels traitements sont utilisés pour les infections résistantes ?\nLes traitements varient-ils selon le type de bactérie ?\nComment la résistance aux antibiotiques affecte-t-elle le traitement ?", "url": "https://questionsmedicales.fr/mesh/D004269?mesh_terms=Methicillin-Resistant+Staphylococcus+aureus&page=2#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur ADN bactérien", "description": "Quelles complications peuvent survenir avec une infection bactérienne ?\nComment l'ADN bactérien peut-il causer des maladies chroniques ?\nQuels sont les risques d'une infection non traitée ?\nComment les infections bactériennes affectent-elles le système immunitaire ?\nQuelles complications peuvent résulter d'une résistance aux antibiotiques ?", "url": "https://questionsmedicales.fr/mesh/D004269?mesh_terms=Methicillin-Resistant+Staphylococcus+aureus&page=2#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur ADN bactérien", "description": "Quels facteurs augmentent le risque d'infections bactériennes ?\nComment l'âge influence-t-il le risque d'infection ?\nQuel rôle joue l'hygiène dans le risque d'infection ?\nLes maladies chroniques augmentent-elles le risque d'infection ?\nComment les conditions de vie affectent-elles le risque d'infection ?", "url": "https://questionsmedicales.fr/mesh/D004269?mesh_terms=Methicillin-Resistant+Staphylococcus+aureus&page=2#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment détecter l'ADN bactérien dans un échantillon ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "L'ADN bactérien peut être détecté par PCR ou séquençage." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour identifier des bactéries spécifiques ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Les tests de culture et les méthodes moléculaires comme la PCR sont utilisés." } }, { "@type": "Question", "name": "Quelles méthodes permettent d'analyser la diversité de l'ADN bactérien ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Le séquençage de nouvelle génération et l'analyse phylogénétique sont courants." } }, { "@type": "Question", "name": "Comment l'ADN bactérien est-il extrait pour analyse ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "L'extraction se fait par lyse cellulaire suivie de purification de l'ADN." } }, { "@type": "Question", "name": "Quels sont les signes d'infection bactérienne dans un test ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "La présence d'ADN bactérien dans un échantillon indique une infection." } }, { "@type": "Question", "name": "Quels symptômes indiquent une infection bactérienne ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Fièvre, douleur, inflammation et fatigue sont des symptômes courants." } }, { "@type": "Question", "name": "Comment l'ADN bactérien influence-t-il les symptômes ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "L'ADN bactérien peut provoquer des réponses immunitaires entraînant des symptômes." } }, { "@type": "Question", "name": "Les symptômes varient-ils selon le type de bactérie ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Oui, chaque type de bactérie peut provoquer des symptômes différents." } }, { "@type": "Question", "name": "Quels symptômes sont associés aux infections urinaires bactériennes ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Brûlures, besoin fréquent d'uriner et douleurs lombaires sont fréquents." } }, { "@type": "Question", "name": "Comment reconnaître une infection bactérienne grave ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes sévères comme la septicémie nécessitent une attention médicale immédiate." } }, { "@type": "Question", "name": "Quelles mesures préventives réduisent les infections bactériennes ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "L'hygiène, la vaccination et l'utilisation prudente des antibiotiques sont essentielles." } }, { "@type": "Question", "name": "Comment la vaccination aide-t-elle à prévenir les infections ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Les vaccins stimulent le système immunitaire pour combattre des bactéries spécifiques." } }, { "@type": "Question", "name": "Pourquoi est-il important de compléter les traitements antibiotiques ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Compléter le traitement prévient la résistance et assure l'élimination des bactéries." } }, { "@type": "Question", "name": "Quels rôles jouent l'hygiène personnelle dans la prévention ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Un bon lavage des mains et une hygiène corporelle réduisent la transmission bactérienne." } }, { "@type": "Question", "name": "Comment éviter les infections lors de procédures médicales ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Des protocoles d'asepsie stricts et l'utilisation d'antibiotiques prophylactiques sont cruciaux." } }, { "@type": "Question", "name": "Quels antibiotiques ciblent l'ADN bactérien ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les fluoroquinolones et les rifamycines inhibent la synthèse de l'ADN bactérien." } }, { "@type": "Question", "name": "Comment les antibiotiques agissent-ils sur l'ADN bactérien ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Ils interfèrent avec la réplication et la réparation de l'ADN bactérien." } }, { "@type": "Question", "name": "Quels traitements sont utilisés pour les infections résistantes ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Des antibiotiques de dernier recours ou des thérapies combinées sont souvent nécessaires." } }, { "@type": "Question", "name": "Les traitements varient-ils selon le type de bactérie ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le choix des antibiotiques dépend du type de bactérie et de sa sensibilité." } }, { "@type": "Question", "name": "Comment la résistance aux antibiotiques affecte-t-elle le traitement ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "La résistance rend certains antibiotiques inefficaces, nécessitant des alternatives." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec une infection bactérienne ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications comme l'abcès, la septicémie ou des dommages organiques peuvent se produire." } }, { "@type": "Question", "name": "Comment l'ADN bactérien peut-il causer des maladies chroniques ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Certaines bactéries peuvent persister et provoquer des maladies chroniques comme la bronchite." } }, { "@type": "Question", "name": "Quels sont les risques d'une infection non traitée ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Une infection non traitée peut entraîner des complications graves, y compris la mort." } }, { "@type": "Question", "name": "Comment les infections bactériennes affectent-elles le système immunitaire ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Elles peuvent affaiblir le système immunitaire, rendant l'organisme plus vulnérable." } }, { "@type": "Question", "name": "Quelles complications peuvent résulter d'une résistance aux antibiotiques ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "La résistance peut mener à des infections persistantes et à des traitements prolongés." } }, { "@type": "Question", "name": "Quels facteurs augmentent le risque d'infections bactériennes ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "L'immunodépression, le diabète et l'hospitalisation augmentent le risque d'infections." } }, { "@type": "Question", "name": "Comment l'âge influence-t-il le risque d'infection ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Les personnes âgées et les jeunes enfants sont plus susceptibles aux infections bactériennes." } }, { "@type": "Question", "name": "Quel rôle joue l'hygiène dans le risque d'infection ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Une mauvaise hygiène augmente le risque de transmission et d'infections bactériennes." } }, { "@type": "Question", "name": "Les maladies chroniques augmentent-elles le risque d'infection ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des maladies comme le VIH ou le diabète augmentent la vulnérabilité aux infections." } }, { "@type": "Question", "name": "Comment les conditions de vie affectent-elles le risque d'infection ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Des conditions de vie insalubres favorisent la propagation des bactéries et des infections." } } ] } ] }

Sources (10000 au total)

Methicillin-resistant Staphylococcus aureus-associated orbital cellulitis: a case series.

In recent years, methicillin-resistant Staphylococcus aureus (MRSA) orbital cellulitis (OC) has drawn increasing clinical and public health concern. We present a case series of MRSA OC encountered at ... A multi-centre retrospective case series investigating MRSA OC in Australia from 2013 to 2022. Patients of all ages were included.... Nine cases of culture-positive non-multi-resistant MRSA (nmMRSA) OC were identified at four tertiary institutions across Australia (7 male, 2 female). Mean age was 17.1 ± 16.7 years (range 13-days to ... NMMRSA OC can follow an aggressive clinical course causing severe orbital and intracranial complications across a wide demographic. However, early recognition, initiation of targeted antibiotics and s...

Predictors of Methicillin-resistant Staphylococcus aureus infection in children with acute osteomyelitis.

This study aims to identify risk factors associated with Methicillin-resistant Staphylococcus aureus (MRSA) infection in children diagnosed with acute osteomyelitis (AO) and to elucidate the laborator... We conducted a retrospective analysis involving 123 children with acute osteomyelitis treated at our hospital. Upon admission, we measured white blood cell (WBC) counts, C-reactive protein (CRP) level... The MRSA group had a significantly higher average age compared to the non-MRSA group (P < 0.05). Notably, the incidence of suppurative arthritis was significantly lower in the MRSA group (P < 0.05). A... In children newly admitted with acute osteomyelitis, a CRP level exceeding 73.23 µg/mL may indicate a high likelihood of MRSA infection. For children with AO who have been hospitalized for three days ...

[Prevalence and risk factors for methicillin-resistant Staphylococcus aureus infection in children].

The objectives of this work were to know the prevalence of methicillin-resistant S. aureus (MRSA) infections in the paediatric population of our health department, to describe the risk factors for inf... A retrospective, descriptive and analytical study of infections produced by MRSA versus those produced by MSSA was carried out during the years 2014 to 2018. Risk factors for MRSA infection were studi... 162 patients with S. aureus infections were identified. Of these, 25 (15.4%) were MRSA. The highest percentages of MRSA infection occurred among children who required hospital admission (23.4%). In th... Our results suggest the need to review empirical local treatment regimen using drugs active against MRSA in infections of probable staphylococcal origin admitted to the hospital, especially if they ha...

Vancomycin plus ceftaroline for persistent methicillin-resistant Staphylococcus aureus bacteremia.

The preferred antibiotic salvage regimen for persistent methicillin-resistant Staphylococcus aureus bacteremia (MRSAB) is unclear. We sought to evaluate the effectiveness and safety of vancomycin plus... Single-center, retrospective cohort study between January 1, 2016, and December 31, 2021.... State University of New York Upstate University Hospital, a 748-bed tertiary care, academic medical center in Syracuse, NY.... Adult patients were included if they had blood cultures positive for MRSA ≥72 h, received vancomycin monotherapy initially, and received vancomycin plus ceftaroline for ≥24 h. Patients were excluded i... Patients were medically complex with a median Pitt bacteremia score of 3, 63.3% (19/30) were admitted to the intensive care unit, and 66.7% (20/30) had infective endocarditis. Vancomycin-associated ac... Vancomycin plus ceftaroline may represent an effective and well-tolerated salvage regimen option for persistent MRSAB....

Rate of methicillin-resistant Staphylococcus aureus in pediatric emergency departments in Spain.

Staphylococcus aureus is a common germ in bacterial infections in children. The rate of methicillin-resistant S. aureus (MRSA) is increasing lately.... The main aim is to know the rate of positive cultures to MRSA in Spanish pediatric emergency departments. The secondary aims are to analyse the risk factors for MRSA isolation (patient origin, history... Retrospective multicenter study (07/01/2017-06/30/2018) with review of patient histories with isolation of S. aureus in samples of any origin obtained in 8 pediatric emergency departments of the Infec... During this period, S. aureus was detected in 403 patients (average age 75.8 ± 59.2 months; 54.8% male): 28.8% hospital-related infections (HRI) and 71.2% community-related infections (CRI). Overall, ... The overall MRSA rate was one in 6 staphylococcal infections. Higher MRSA rates were detected in samples of suppurating skin injuries and in foreign children or in children with a history of previous ...

Evaluation of the synergistic effect of ceftaroline against methicillin-resistant Staphylococcus aureus.

We aimed to determine the synergistic effects of ceftaroline (CPT) in combination with daptomycin (DAP), vancomycin (VAN), or linezolid (LNZ) against various methicillin-resistant Staphylococcus aureu... MRSA strains randomly selected from 2014 to 2018 were studied. Checkerboard titration and in vitro time-kill analyses were used to determine the synergistic activities of the antibiotic combinations.... A total of 10 genetically distinct MRSA strains were included in this study. The checkerboard titration analysis revealed that the CPT-DAP, CPT-VAN, and CPT-LNZ combinations had a synergistic effect a... The CPT-DAP combination showed better synergistic activity than the CPT-VAN and CPT-LNZ combinations against the enrolled MRSA strains. DAP, rather than VAN or LNZ, might be a better choice for CPT co...

Using Methicillin-Resistant Staphylococcus aureus Nasal Screens to Rule Out Methicillin-Resistant S aureus Pneumonia in Surgical Intensive Care Units.

The methicillin-resistant Staphylococcus aureus (MRSA) polymerase chain reaction (PCR) has a high negative predictive value (NPV). We aimed to understand if there was a difference in the NPV of the MR... We performed a single-center, retrospective cohort study of adults with a positive respiratory culture and MRSA nasal PCR admitted to a surgical ICU from 2016 to 2019. Patients were stratified by surg... We analyzed 61 patients: 42.6% (n = 26) ACS-ICU and 57.4% (n = 35) CVICU. There were no differences in age, comorbidities, prior MRSA infection, recent antibiotic use, immunocompromised status, or ren... The MRSA nasal PCR screen has a high NPV for ruling out MRSA pneumonia in critically ill surgical patients. However, patients in the CVICU and patients hospitalized ≥5 d had a longer time to de-escala...

Molecular epidemiology, virulence and antimicrobial resistance of Bulgarian methicillin resistant Staphylococcus aureus isolates.

Severe infections of virulent methicillin-resistant Staphylococcus aureus (MRSA) are a serious health problem. The present study aimed to investigate clonal spread, virulence and antimicrobial resista... Molecular identification and mecA gene detection were performed with PCR. Clonal relatedness was evaluated by RAPD PCR and MLST. MRSA epidemiology, virulence and resistance patterns were investigated ... All 27 isolates were identified as S. aureus and were mecA positive, and all were susceptible to linezolid, tigecycline and vancomycin. The toxin genes hlg (in 92.6% of isolates), seb (77.8%), sei (77... To the best of our knowledge, this study is the first describing the clonal spreading of Bulgarian MRSA and the association with their virulence and resistance determinants. Monitoring of MRSA epidemi...

Comparing Rates of Postoperative Meningitis After Endoscopic Endonasal Procedures Based on Methicillin-Resistant Staphylococcus aureus/Methicillin-Sensitive Staphylococcus aureus Colonization and Antibiotic Prophylaxis.

Endoscopic endonasal approach (EEA) procedures are inherently contaminated due to direct access through the nasopharyngeal mucosa. The reported rate of postoperative meningitis in EEA procedures is 0.... All adult patients who underwent EEA resection at our institution from 2013 to 2021 were retrospectively reviewed. Patients with preoperative cerebrospinal fluid infections were excluded. Data includi... Of 483 patients identified (mean age, 51 years; range, 18-90 years; 274 [56.7%] female), 80 (16.6%) had a positive preoperative methicillin-resistant Staphylococcus aureus (MRSA)/methicillin-sensitive... Postoperative rates of meningitis after EEA surgery were not significantly changed based on MRSA/MSSA colonization status of the patient or preoperative decolonization. The utility of preoperative tes...