can persistently colonize human skin, alongside a diverse bacterial microbiome. In this study we aimed to investigate the efficacy of antiseptic activities on dual-species interkingdom biofilms containing staphylococci to determine if antiseptic tolerance was negatively impacted by dual-species biofilms. Chlorhexidine, povidone iodine, and hydrogen peroxide (HO), were able to significantly reduce biofilm viable cell counts following exposure at 2%, 10%, and 3%, respectively. Notably, HO-treated biofilms were able to significantly recover and considerably repopulate following treatment. Fortunately, inter-kingdom interactions in dual-species biofilms of and staphylococci did not increase the tolerance of against antiseptics in vitro. These data indicate mixed infections are manageable with chlorhexidine and povidone iodine, but caution should be exercised in the consideration of HO.
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http://dx.doi.org/10.3390/antibiotics11070931 | DOI Listing |
Materials (Basel)
January 2025
Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Rome, Italy.
Prosthetic joint infections (PJIs) remain a significant challenge, occurring in 1% to 2% of joint arthroplasties and potentially leading to a 20% to 30% mortality rate within 5 years. The primary pathogens responsible for PJIs include Staphylococcus aureus, coagulase-negative staphylococci, and Gram-negative bacteria, typically treated with intravenous antibiotic drugs. However, this conventional approach fails to effectively eradicate biofilms or the microbial burden in affected tissues.
View Article and Find Full Text PDFFolia Med (Plovdiv)
December 2024
University of Baghdad, Baghdad, Iraq.
In the field of implantology, peri-implantitis is still a common complication of implant failure. Similar to periodontal disease, this kind of pathological condition is characterized by inflammation of the tissues surrounding dental implants or fillings. The sources of infection have been shown to be chronic periodontitis and poor maintenance of the communion.
View Article and Find Full Text PDFMicroorganisms
December 2024
Laboratory for Skin Research, Institute for Medical Research, Galilee Medical Center, Nahariya 2210001, Israel.
Facultatively anaerobic spp. and anaerobic spp. are among the most prominent bacteria on human skin.
View Article and Find Full Text PDFMikrobiyol Bul
October 2024
Pamukkale University Faculty of Medicine, Department of Medical Microbiology, Denizli, Türkiye.
The aim of this study was to investigate the frequency of sasX, arginine catabolic mobile element (ACME) genes, biofilm formation and some biofilm related virulence factor genes in causative and contaminant coagulase negative staphylococci (CNS) strains isolated from blood cultures. Of the 150 CNS strains included in the study, 50 were grouped as infectious agents and 100 as contaminants. Biofilm formation of the strains was investigated by microplate method and the presence of sasX, ACME, mecA and biofilm associated virulence factor genes icaA, icaD, aap, bhp and IS256 were investigated by inhouse polymerase chain reaction method.
View Article and Find Full Text PDFFront Cell Infect Microbiol
January 2025
VBIC, INSERM U1047, University of Montpellier, Montpellier, France.
Introduction: This study identifies as a new coagulase-negative staphylococcal species isolated from diabetic foot osteomyelitis (DFOM) and provides an in-depth analysis of its pathogenic and virulence profile, as well as demonstrating its potential to cause infection.
Methods: The NSD001 strain was examined for its planktonic growth, biofilm production, and phagocytosis rates in murine macrophages compared to NSA739. Additionally, persistence and replication within human osteoblasts were investigated, while the zebrafish embryo model was employed to assess virulence.
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