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Antibiotics, Volume 14, Issue 7

July 2025 - 110 articles

Cover Story: Platelet concentrates (PCs), used to treat patients with bleeding disorders, are stored at 20–24 °C to maintaining platelet functionality. These conditions also sustain the growth of bacteria such as Staphylococcus aureus, which poses an important safety risk to transfusion patients as it reaches clinically significant levels and produces virulence factors during PC storage. Previous studies have demonstrated that Staphylococcus spp. grown in PCs display upregulation of genes encoding for antimicrobial resistance and virulence. To expand the current knowledge, this study aimed to test whether the increase in the norB efflux pump expression observed in PCs translates into heightened quinolone resistance. Furthermore, the role of the NorB efflux pump on S. aureus virulence was investigated using a Bombyx mori (silkworm) animal model. View this paper
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Articles (110)

  • Article
  • Open Access
1 Citations
3,498 Views
13 Pages

Preliminary Evaluation of the Synergistic Antibacterial Effects of Selected Commercial Essential Oil Compounds Against Methicillin-Resistant Staphylococcus aureus ATCC 43300

  • Kacper Hartman,
  • Maja Świerczyńska,
  • Amelia Wieczorek,
  • Piotr Baszuk,
  • Iwona Wojciechowska-Koszko,
  • Katarzyna Garbacz,
  • Monika Sienkiewicz and
  • Paweł Kwiatkowski

Background/Objectives: Growing antibiotic resistance is one of the most significant problems of current medicine. Various research efforts are focused on the search for new substances and their combinations as potential solutions to this problem. Ess...

  • Article
  • Open Access
1,270 Views
16 Pages

Genotypic and Phenotypic Methods in the Detection of MDR-TB and Evolution to XDR-TB

  • Natalia Zaporojan,
  • Ramona Hodișan,
  • Carmen Pantiș,
  • Andrei Nicolae Csep,
  • Claudiu Zaporojan and
  • Dana Carmen Zaha

Background: Accurate and rapid diagnosis of drug-resistant tuberculosis is essential for initiating appropriate treatment and preventing the transmission of these strains. This study compares phenotypic and genotypic methods of drug susceptibility te...

  • Article
  • Open Access
4 Citations
1,578 Views
17 Pages

Background: Antibiotics at sub-inhibitory concentrations can rewire bacterial regulatory networks, impacting virulence. Objective: The way that exposure to selected antibiotics (ciprofloxacin, amikacin, azithromycin, ceftazidime, and meropenem) below...

  • Article
  • Open Access
1,252 Views
11 Pages

The Re-Emergence of Pediatric Pertussis: Insights from a Regional Romanian Hospital

  • Ioana Rosca,
  • Alina Turenschi,
  • Alexandru Dinulescu and
  • Victoria Lichii

Introduction: Pertussis, a vaccine-preventable disease caused by Bordetella pertussis, is resurging globally due to declining immunization rates. This study explores the clinical and epidemiological features of pediatric pertussis cases in a regional...

  • Article
  • Open Access
1 Citations
1,080 Views
20 Pages

Time Evolution of Bacterial Resistance Observed with Principal Component Analysis

  • Claudia P. Barrera Patiño,
  • Mitchell Bonner,
  • Andrew Ramos Borsatto,
  • Jennifer M. Soares,
  • Kate C. Blanco and
  • Vanderlei S. Bagnato

Background/Objectives: In recent work, we have demonstrated that principal component analysis (PCA) and Fourier Transformation Infrared (FTIR) spectra are powerful tools for analyzing the changes in microorganisms at the biomolecular level to detect...

  • Review
  • Open Access
3 Citations
2,456 Views
30 Pages

About a quarter of the world’s population is infected with Mycobacterium tuberculosis. Growing antibiotic resistance by this microorganism is a major problem in the therapy of the disease. M. avium-M. intracellulare that emerged as a major oppo...

  • Review
  • Open Access
2,084 Views
18 Pages

The Changing Landscape of Antibiotic Treatment: Reevaluating Treatment Length in the Age of New Agents

  • Francesca Serapide,
  • Salvatore Rotundo,
  • Luca Gallelli,
  • Caterina Palleria,
  • Manuela Colosimo,
  • Sara Palma Gullì,
  • Gianmarco Marcianò and
  • Alessandro Russo

Background: The landscape of antimicrobial therapy is undergoing a profound transformation; the contemporary arsenal of antimicrobials, particularly those with extended half-lives and enhanced tissue penetration, necessitates critically reassessing t...

  • Article
  • Open Access
2,033 Views
16 Pages

Direct Disk Diffusion Testing and Antimicrobial Stewardship for Gram-Negative Bacteremia in the Context of High Multidrug Resistance

  • Wantin Sribenjalux,
  • Pawarit Kulwongroj,
  • Waewta Kuwatjanakul,
  • Lumyai Wonglakorn,
  • Kanuengnit Srisak,
  • Natapong Manomaiwong and
  • Atibordee Meesing

Background: Combining direct disk diffusion (DD) testing with antimicrobial stewardship (AMS) may optimize antibiotic use and improve outcomes in patients with Gram-negative bloodstream infections (GNBSIs). Methods: This quasi-experimental study was...

  • Article
  • Open Access
782 Views
16 Pages

Antimicrobial-Resistant Staphylococcus spp. Harbored by Hedgehogs (Erinaceus europaeus) in Central Italy

  • Fabrizio Bertelloni,
  • Francesca Pauselli,
  • Giulia Cagnoli,
  • Roberto Biscontri,
  • Renato Ceccherelli and
  • Valentina Virginia Ebani

Background/Objectives: European hedgehogs (Erinaceus europaeus) are present in areas where there is human activity; therefore, they can be a source of pathogens for other animals and humans. Methods: Eighteen hedgehog carcasses were collected and ana...

  • Article
  • Open Access
1,804 Views
14 Pages

Exploring the Microbiome of Diabetic Foot Ulcers: A Focus on Cases with a Clinical Worse Outcome

  • Laura Soldevila-Boixader,
  • Anna Carrera-Salinas,
  • Isabel Mur,
  • Laura Morata,
  • Alba Rivera,
  • Jordi Bosch,
  • Abelardo Montero-Saez,
  • Jéssica Martínez Castillejo,
  • Natividad Benito and
  • Sara Martí
  • + 1 author

Background/Objectives: We evaluated the diabetic foot ulcer (DFU) microbiome in clinical situations identified as risk factors for a worse outcome and explored the roles of the most abundant microorganisms. Methods: A prospective multicenter cohort o...

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Antibiotics - ISSN 2079-6382