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The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
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Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
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Acute diarrhea, a common gastrointestinal disturbance, is characterized by the rapid evacuation of fluid stools, leading to an excessive weight in fluid. This condition typically arises from disorders affecting intestinal water and electrolyte transport. It can be triggered by an increased osmotic load within the intestine, excessive secretion of electrolytes and water, mucosal exudation of protein and fluid, or altered intestinal motility. The primary risks of acute diarrhea are dehydration...
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Application of the Intelligent High-Throughput Antimicrobial Sensitivity Testing/Phage Screening System and Lar Index of Antimicrobial Resistance
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Fosfomycin in antimicrobial stewardship programs.

E Múñez Rubio, A Ramos Martínez1, A Fernández Cruz

  • 1Antonio Ramos Martínez. Unidad de Enfermedades Infecciosas. Servicio de Medicina Interna. Hospital Universitario Puerta de Hierro-Majadahonda. Instituto de Investigación Sanitaria Puerta de Hierro - Segovia de Arana. C/ Joaquín Rodrigo nº 2. 28222 Majadahonda (Madrid). Spain. aramos220@gmail.com.

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Summary
This summary is machine-generated.

Fosfomycin is an effective antibiotic against resistant bacteria, including MRSA and ESBL-producing Gram-negatives. Its oral formulation, low toxicity, and synergistic potential make it valuable for treating complex infections.

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Pharmacology

Background:

  • Antimicrobial resistance necessitates novel therapeutic strategies like antimicrobial stewardship programs (ASP).
  • Fosfomycin offers a unique mechanism of action with limited cross-resistance, making it a valuable agent against resistant pathogens.

Purpose of the Study:

  • To review the clinical utility and efficacy of fosfomycin in treating infections caused by multidrug-resistant bacteria.
  • To highlight fosfomycin's role in antimicrobial stewardship and combination therapies.

Main Methods:

  • Literature review of published studies on fosfomycin's activity, pharmacokinetics, and clinical applications.
  • Analysis of fosfomycin's efficacy against various resistant Gram-positive and Gram-negative bacteria.
  • Evaluation of synergistic effects with other antibiotics.

Main Results:

  • Fosfomycin demonstrates activity against methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci, and extended-spectrum beta-lactamase (ESBL)-producing enterobacteria.
  • Its oral formulation allows for sequential therapy with good tissue penetration, including CNS and bone.
  • Synergistic effects observed with beta-lactams, daptomycin, glycopeptides, linezolid, aminoglycosides, and colistin.

Conclusions:

  • Fosfomycin is a versatile antibiotic for treating infections caused by resistant bacteria, including persistent bacteremia and healthcare-associated infections.
  • It serves as a valuable option for glycopeptide-sparing and carbapenem-sparing strategies.
  • Combination therapy with fosfomycin can enhance efficacy and potentially mitigate resistance development.