Several antimicrobial cocktail solutions of differing composition and concentrations are widely used to decontaminate viable banked tissue allografts at different temperatures and times of exposure. We compared the efficiency of four cocktails comprising nine antimicrobials to kill suspensions of a panel of 27 strains of 13 bacterial species, and 3 Candida spp. at 4, 22 and 37 °C for 24 h. All but one bacterial strains were susceptible to one or more of the agents tested individually at concentrations at least fourfold below the recommended susceptibility breakpoint minimum inhibitory concentrations for drug/species combinations. Candida lusitaniae was resistant to nystatin and amphotericin. The concentrations of several of the cocktail constituents were often greatly in excess (50-1,000-fold) of that required to inhibit the growth of susceptible strains. All cocktails were ineffective against a pan-resistant strain of Enterococcus faecium and one of the four cocktails failed to kill two strains of methicillin resistant Staphylococcus aureus. Each cocktail was most efficient at 37 °C, less so at 22 °C, and poorly active at 4 °C. We conclude that the practice of decontamination of tissues with antimicrobials at low temperatures is not supported by in vitro susceptibility tests.
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http://dx.doi.org/10.1007/s10561-013-9382-0 | DOI Listing |
Diagn Microbiol Infect Dis
January 2025
Professor at the Department of Physiotherapy, the Postgraduate Program in Health Sciences and the Postgraduate Program in Rehabilitation and Functional Performance Universidade Federal dos Vales do Jequitinhonha e Mucuri, Brazil. Electronic address:
to verify factors associated with the presence of Candida spp. in oral and tracheobronchial secretions of 135 patients admitted to an adult ICU, general of the Santa Casa de Caridade, of Diamantina, Minas Gerais, Brazil. Oral samples showed significant differences between colonized and non-colonized patients in the variables age (p < 0.
View Article and Find Full Text PDFJ Infect Dev Ctries
December 2024
Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil.
Introduction: Invasive candidiasis is an important cause of nosocomial infection and recent studies have shown an increase in the number of cases during the coronavirus disease 2019 (COVID-19) pandemic. The present study aimed to evaluate the epidemiology and incidence of invasive candidiasis before and during the COVID-19 pandemic at a reference tertiary hospital in Brazil.
Methodology: A retrospective observational study was performed with 148 patients infected with Candida spp.
Pathogens
January 2025
Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, 35126 Padua, Italy.
Fungal infections (FIs) are widespread globally, affecting both immunocompromised and immunocompetent children, with varying clinical implications based on age and comorbidities. In immunocompromised children, particularly those with hematologic oncological conditions, FI leads to substantially longer hospital stays and increased in-hospital mortality, with reported rates ranging from 15% to 20%. Our study aims to analyze the epidemiological trends of fungal infections in the pediatric population within a specific region of Italy.
View Article and Find Full Text PDFPathogens
January 2025
Department of Biomedicine and Environmental Research, Faculty of Medicine, The John Paul II Catholic University of Lublin, Konstantynów 1j, 20-708 Lublin, Poland.
In this study, we investigated the interactions between and , , , and in mixed infections. Initially, these interactions were studied qualitatively and quantitatively in dual-species biofilms formed in vitro. The MTT assays, determination of the total CFU/mL, and SEM analysis showed that interacted differentially with the other spp.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Associate Laboratory i4HB-Institute for Health and Bioeconomy, University Institute of Health Sciences-CESPU, 4585-116 Gandra, Portugal.
Oral candidiasis is one of the most common infections in the immunocompromised. Biofilms of species can make treatments difficult, leading to oral infection recurrence. This research aimed to isolate a with anti- effects from the oral cavity.
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