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Updated: Jun 25, 2026
10:49
Antibiotic Dereplication Using the Antibiotic Resistance Platform
Published on: October 17, 2019
Side effects of antibiotics on genetic variability
Alejandro Couce1, Jesús Blázquez
1Departamento de Biotecnología Microbiana, Centro Nacional de Biotecnología, CSIC, Cantoblanco, Madrid, Spain.
FEMS Microbiology Reviews
|March 6, 2009
Summary
Antibiotics may accelerate bacterial evolution and resistance by promoting genetic mutations and variability. This study investigates whether antibiotics enhance antibiotic resistance, posing a threat to treatment efficacy.
Area of Science:
- Microbiology
- Evolutionary Biology
- Genetics
Background:
- Antibiotics possess antimicrobial properties but may also induce undesired side effects.
- Accumulating evidence suggests antibiotics can promote bacterial genetic variability and evolution.
- Sub-inhibitory antibiotic concentrations may affect mutation, recombination, and horizontal gene transfer.
Purpose of the Study:
- To investigate the potential of antibiotics to promote bacterial genetic variability.
- To determine if antibiotics enhance the evolution of antibiotic resistance.
- To assess the implications of these findings for antibiotic usage and resistance.
Main Methods:
- The study presents data to support or refute the hypothesis that antibiotics enhance bacterial evolution.
- Specific experimental methods are detailed within the full study.
Main Results:
- Antibiotics, beyond their antimicrobial action, can promote genetic variability in bacteria.
- Antibiotics can select for mutator clones, stimulating evolution towards further resistance.
- Evidence supports the hypothesis that antibiotics can enhance antibiotic resistance evolution.
Conclusions:
- Antibiotic use may inadvertently accelerate the evolution of antibiotic resistance.
- The potential for antibiotics to enhance resistance evolution requires consideration in clinical practice.
- Further research is needed to fully understand and mitigate these effects.
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