Linezolid resistance in coagulase negative Staphylococci isolates and the related genes in intensive care unit patients in a University Hospital in Egypt

Faculty Medicine Year: 2023
Type of Publication: ZU Hosted Pages:
Authors:
Journal: Microbes and Infectious Diseases Zagazig University Volume:
Keywords : Linezolid resistance , coagulase negative Staphylococci isolates    
Abstract:
Background: Coagulase-negative Staphylococci (CoNS) are opportunistic pathogens causing severe hospital-acquired infections. This study aimed to determine the frequency of linezolid-resistant CoNS (LRCoNS) in intensive care unit (ICU) infected patients and the related resistance genes. Methods: Seventy CoNS were isolated from 254 different clinical samples from ICU patients. They were identified by conventional methods; species were identified by API. Antimicrobial susceptibility test (AST) by disc diffusion method was performed for CoNS isolates. Methicillin resistance was identified by resistance to cefoxitin (30 μg) disc. Linezolid resistance was confirmed by measuring the minimal inhibitory concentration (MIC) using E-test strips (0.016-256 μg/ml). Three resistance genes (cfr, optrA and poxtA) were tested for the LRCoNS by PCR. Results: Among the 70 CoNS isolates, three LRCoNS were detected by disc diffusion method and confirmed by MIC (>256 μg/ml). Approximately 71.4% of the isolated CoNS were multi-drug resistant (MDR) and 68.6% were methicillin-resistant (MR). The three LRCoNS isolates (2 Staphylococcus S. epidermidis and one S. haemolyticus) were positive for cfr gene and negative for optrA and poxtA genes. Conclusion: The presence of cfr gene in the three LRCoNS isolates could explain the MDR of the three strains. This is considered an alarm for the antimicrobial resistance to the last resort antibiotics in hospital settings. So far, the situation is not threatening. Yet, continuous monitoring is essentially required.
   
     
 
       

Author Related Publications

  • Hana Ibrahim Mohamed AbdelHadi, "Expression of metallo-β-lactamase genes in carbapenem resistant Acinetobacter baumannii isolates from intensive care unit patients", Zagazig University, 2021 More
  • Hana Ibrahim Mohamed AbdelHadi, "Plasma Wnt7b protein in rheumatoid arthritis: Detection of interstitial lung disease", Elsevier, 2023 More
  • Hana Ibrahim Mohamed AbdelHadi, "TNF-α versus IL-6 Genes Expression levels in Active Rheumatoid Arthritis: Clinical and Laboratory Determinants", Elsevier, 2023 More
  • Hana Ibrahim Mohamed AbdelHadi, "Association between Dysbiosis of Key Species of Nasal Microbiome and Allergic Rhinitis in Adult Patients", Egyptian Society for Medical Microbiology, 2023 More
  • Hana Ibrahim Mohamed AbdelHadi, "Role of miRNA-23b as a biomarker of pediatric sepsis "A single-center study"", Zagazig University, 2024 More

Department Related Publications

  • Awny Ali Aboelmoaz Ghawesh, "اليزا الجيل الثالث مقارنة بالريبا و سلسلة تفاعلات انزيم البوليمراز في تشخيص الالتهاب الكبدي الفيروسي(سي)", لايوجد, 1900 More
  • Awny Ali Aboelmoaz Ghawesh, "دور اليتوكتير في المناعة في الالتهابات ااذن الوسطي", لايوجد, 1900 More
  • Magdy Aly Fahmy Nawawy, ": دراسة وبائية على العدوى بميكروب الانتبروباكتر ", لايوجد, 1900 More
  • Mustafa Kamel Abdou abdelGhani, "التعرف على ميكروب الهيموفيلسى انفلوانزا من مزارع البصاق فى خلال ساعة واحدة بإستحدام اختبار الانزيمات السريع", لايوجد, 1900 More
  • Reham Hassan Anis Mohamed AbdelMoetti, "Nasal Carriage of Superantigen Producing Staphylococcus Aureus and Its Role in Pathogenesis of Allergic Rhinitis and Bronchial Asthma", Egyptian Journal of Medical Microbiology and Immunology, 2015 More
Tweet