Objective: To test for synergy between daptomycin (DAP) and rifampin (RIF) against RIF-resistant methicillin-resistant Staphylococcus aureus (MRSA) isolates.
Methods: Synergy testing using time-kill assay (TKA) was performed on 6 clinically, and genetically unique RIF-resistant MRSA isolates. The isolates were identified out of 489 (1.2%) samples collected during April 2003 to August 2006, from patients at the Ochsner Medical Center in New Orleans, Louisiana, United States of America.
Results: Synergy testing of DAP plus RIF by TKA showed that 5 isolates were indifferent, but one isolate was antagonistic.
Conclusion: Our in vitro study failed to demonstrate synergy between DAP plus RIF, against our RIF-resistant MRSA isolates. Clinical failure of this combination should prompt the clinician to consider antagonism, as one of the potential causes.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Clinical characteristics of acute epiphyseal osteomyelitis and acute metaphyseal osteomyelitis of long bones in children.
J Pediatr Orthop B
January 2025
Department of Orthopaedic Trauma Surgery, Children's Hospital Affiliated to Shandong University (Jinan Children's Hospital), Jinan, Shandong Province, China.
This study aimed to summarize the clinical characteristics of acute epiphyseal osteomyelitis and acute metaphyseal osteomyelitis of long bones in children. Data of 43 children with acute osteomyelitis of long bones diagnosed and treated from November 2017 to January 2021 were retrospectively analyzed. Medical records, laboratory results, and MRI were reviewed.
View Article and Find Full Text PDFNanobubble Ozone Stored in Hyaluronic Acid-Decorated Liposome Solutions: Inactivating Antibiotic-Resistant Bacteria and Genotoxicity, Sub-Acute and Sub-Chronic Toxicity Tests.
Infect Drug Resist
January 2025
Department of Medical Biochemistry, Faculty of Medicine, Bandırma Onyedi Eylül University, Bandırma/Balıkesir, Turkey.
Introduction: Nanobubble ozone stored in hyaluronic acid-decorated liposomes (patent application PCT/TR2022/050177) was used, and the Minimum Inhibitory Concentration (MIC) was found to be 1562 ppm. (patient isolate), (patient isolate), (MRSA) (ATCC12493), and (ATCC25922) bacteria, which are hospital-acquired and healthcare-associated infections, were used. A time-dependent efficacy study was conducted at 1600 ppm.
View Article and Find Full Text PDFEfficacy of Contezolid in the Treatment of Catheter-Related Bloodstream Infections Caused by Methicillin-Resistant in a Patient with Hepatorenal Syndrome and Acute Kidney Injury: A Case Report.
Infect Drug Resist
January 2025
Department of Infectious Disease, Changzheng Hospital, Navy Medical University, Shanghai, People's Republic of China.
The Hepatorenal Syndrome-Acute Kidney Injury (HRS-AKI) patients infected with methicillin-resistant (MRSA) urgently require safe and effective treatment options due to their compromised hepatic and renal functions, as well as thrombocytopenia resulting from hypersplenism. In our case, an HRS-AKI patient who underwent continuous renal replacement therapy for fluid overload developed fever with chills. His blood tests indicated elevated C-reactive protein and neutrophils, low platelet count, and bilateral lung infiltrates.
View Article and Find Full Text PDFMarine actinobacteria metabolites: unlocking new treatments for acne vulgaris.
Front Microbiol
January 2025
Doctoral Program of Biosciences, School of Engineering, Universidad de La Sabana, Chía, Cundinamarca, Colombia.
Marine-derived actinobacteria isolated from sponge and soft coral were screened for antibacterial activity against acne-related bacteria, specifically ATCC 14990, methicillin-resistant ATCC BAA44, and ATCC 6919. Cytotoxicity assays were performed on human dermal fibroblast (HDFa) and keratinocyte (HaCaT) cell lines to assess the safety profile of the extracts. Chemical characterization was conducted using high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS).
View Article and Find Full Text PDFGenomic detection of Panton-Valentine Leucocidins encoding genes, virulence factors and distribution of antiseptic resistance determinants among Methicillin-resistant S. aureus isolates from patients attending regional referral hospitals in Tanzania.
BMC Med Genomics
January 2025
Kilimanjaro Christian Medical University College, Kilimanjaro, Tanzania.
Background: Methicillin-resistant Staphylococcus aureus (MRSA) is a formidable public scourge causing worldwide mild to severe life-threatening infections. The ability of this strain to swiftly spread, evolve, and acquire resistance genes and virulence factors such as pvl genes has further rendered this strain difficult to treat. Of concern, is a recently recognized ability to resist antiseptic/disinfectant agents used as an essential part of treatment and infection control practices.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!