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[Antibiotic sensitivity and pyocin dependence of clinical strains of Ps. aeruginosa]
Antibiotiki
|December 1, 1977
Abstract:
The effect of antibiotics on clinical strains of Ps. aeruginosa was analyzed. It shown that 92 per cent of the strains had multiple resistance to the most of the antibiotics used in the clinic. All the strains were sensitive to gentamicin and polymyxin. The apyocinogenic strains of Ps. aeruginosa were more sensitive to the effect of the antibiotics than the pyocinogenic ones.
Insights
Most clinical Pseudomonas aeruginosa strains exhibit multidrug resistance, with 92% resistant to common antibiotics. However, all strains remained sensitive to gentamicin and polymyxin, indicating potential treatment options.
Area of Science:
- Clinical Microbiology
- Infectious Diseases
- Pharmacology
Background:
- Pseudomonas aeruginosa (Ps. aeruginosa) is an opportunistic pathogen frequently associated with hospital-acquired infections.
- The rise of antibiotic resistance in clinical isolates poses a significant challenge to effective treatment strategies.
- Understanding the susceptibility patterns of Ps. aeruginosa is crucial for guiding antimicrobial therapy.
Purpose of the Study:
- To evaluate the antibiotic susceptibility of clinical strains of Pseudomonas aeruginosa.
- To identify antibiotics to which these strains remain sensitive.
- To compare the sensitivity of pyocinogenic and apyocinogenic strains to antibiotics.
Main Methods:
- Analysis of antibiotic effects on clinical isolates of Ps. aeruginosa.
- Determination of multidrug resistance patterns.
- Comparative sensitivity testing between pyocinogenic and apyocinogenic strains.
Main Results:
- A high prevalence of multidrug resistance was observed, with 92% of strains resistant to multiple antibiotics.
- All tested Ps. aeruginosa strains demonstrated sensitivity to gentamicin and polymyxin.
- Apyocinogenic strains exhibited greater sensitivity to antibiotics compared to pyocinogenic strains.
Conclusions:
- Clinical strains of Ps. aeruginosa frequently display extensive antibiotic resistance.
- Gentamicin and polymyxin represent potential therapeutic agents against multidrug-resistant Ps. aeruginosa.
- Strain characteristics, such as pyocinogenicity, may influence antibiotic susceptibility.
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