Publications by authors named "R Sleha"

An increasing resistance of microbes to antibiotics, the emergence of multidrug-resistant and extremely resistant strains, and the long time needed to develop new antibiotics are driving the search for additional sources of antibacterial agents. The aim of the study was to compare the efficacy of Czech honeys with already available pharmaceutical agents containing medicinal honey, and to perform basic biochemical analysis of Czech samples, including detection of undesirable chemical substances. The results showed strong antibacterial activity of Czech honeydew honeys compared to the control group, especially against G+ pathogens, with an average MIC of 9.

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Article Synopsis
  • The misuse of antibiotics has led to the rise of resistant bacteria and the need for new antimicrobial solutions, highlighting the potential of 'gemini' quaternary ammonium compounds (QACs) like octenidine (OCT).
  • Researchers developed 16 novel OCT derivatives, which were tested for effectiveness against resistant bacteria, showing that compounds 6-8 were notably more effective than existing standards, and compound 12 exhibited low toxicity and broad-spectrum antimicrobial activity.
  • Several of the new compounds, particularly compound 12, demonstrated strong antifungal and virucidal activity, positioning them as promising alternatives to current disinfectants in combating resistant strains.
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Aside from the general population, the COVID-19 pandemic has also affected a group of patients in palliative oncology care. In this study, long-term immune responses against SARS-CoV-2 after vaccination were monitored in a cohort of patients in palliative oncology care. This non-randomized, prospective, and open-label pilot study recruited patients from the Palliative Oncology Program and included 147 patients, of which 80 were females (54.

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The use of nanoparticles as a delivery system for a specific antigen could solve many limitations of mucosal vaccine applications, such as low immunogenicity, or antigen protection and stabilization. In this study, we tested the ability of nasally administered chitosan nanoparticles loaded with glycoprotein B of murine cytomegalovirus to induce an immune response in an animal model. The choice of chitosan nanoparticle type was made by in vitro evaluation of sorption efficiency and antigen release.

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