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Testing the Role of Multicopy Plasmids in the Evolution of Antibiotic Resistance
Published on: May 2, 2018
Antibiotic Resistance: A Genetic and Physiological Perspective
Rania G Elbaiomy1, Ahmed H El-Sappah2,3, Rong Guo4
1Department of Biological Engineering Sichuan University of Science & Engineering Zigong China.
Abstract:
Antimicrobial-resistant bacteria, a growing worldwide concern, reduce the effectiveness of antibiotics against a wide range of microbial infections. Various bacterial species have quickly developed antibiotic resistance since the first mention of penicillin resistance in 1947. A rise in mortality, more extended hospital stays, more healthcare expenditures, and morbidity are all brought about by these bacteria that are resistant to antibiotics. To develop resistance, bacteria may undergo genetic changes, engage in horizontal gene transfer, produce β-lactamase, activate efflux pumps, form biofilms, and alter their metabolism to become less susceptible to drugs. Environmental factors and sublethal antibiotic exposure exacerbate resistance, particularly in cases of persistent infections caused by biofilms. This tendency is prompted by the overuse of antibiotics in both human and veterinary medicine, as well as inadequate infection control measures and environmental pollution. This review presents an extensive survey of antimicrobial resistance across bacterial taxa, with a focus on the physiological and genetic processes underlying this phenomenon. It delves into the current therapeutic landscape and showcases cutting-edge methods-such as artificial intelligence-driven antibiotic discovery and resistance prediction-to inform the development of next-generation antibiotics and containment systems.
Insights
Antimicrobial resistance is a global crisis, with bacteria evolving new defense mechanisms against antibiotics. This review explores resistance mechanisms and highlights AI-driven solutions for developing new antibiotics.
Area of Science:
- Microbiology
- Genetics
- Pharmacology
Background:
- Antimicrobial resistance (AMR) poses a significant global health threat, diminishing antibiotic efficacy.
- Bacterial resistance has escalated since 1947, leading to increased mortality, prolonged hospitalizations, and higher healthcare costs.
- Mechanisms of resistance include genetic alterations, horizontal gene transfer, enzyme production (e.g., β-lactamase), efflux pumps, biofilm formation, and metabolic changes.
Purpose of the Study:
- To provide a comprehensive overview of antimicrobial resistance across bacterial taxa.
- To elucidate the physiological and genetic underpinnings of antimicrobial resistance.
- To examine the current therapeutic strategies and emerging technologies for combating AMR.
Main Methods:
- Literature review of antimicrobial resistance mechanisms.
- Analysis of genetic and physiological processes in resistant bacteria.
- Survey of current and novel therapeutic approaches, including AI-driven methods.
Main Results:
- Bacteria employ diverse strategies to develop resistance, influenced by environmental factors and antibiotic exposure.
- Overuse of antibiotics in human and veterinary medicine, poor infection control, and pollution accelerate resistance.
- Cutting-edge methods like AI offer promising avenues for antibiotic discovery and resistance prediction.
Conclusions:
- Understanding resistance mechanisms is crucial for developing effective treatments.
- Integrated strategies addressing antibiotic use, infection control, and environmental factors are necessary.
- Artificial intelligence presents a transformative approach to combatting the growing threat of antimicrobial resistance.
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