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Related Concept Videos

Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
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Mechanism of Antibiotic Resistance in MRSA

Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and acquisition...
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Antibiotic Selection00:57

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Overview
Biological Methods for Microbial Control01:28

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Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
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Updated: May 17, 2026

Quadruple-Checkerboard: A Modification of the Three-Dimensional Checkerboard for Studying Drug Combinations
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Quadruple-Checkerboard: A Modification of the Three-Dimensional Checkerboard for Studying Drug Combinations

Published on: July 24, 2021

Combating antibiotic resistance in bacteria.

R Maheshwari1

  • 1Formerly, Department of Biochemistry, Indian Institute of Science, Bangalore, 560 012 India.

Indian Journal of Microbiology
|October 27, 2012
PubMed
Summary
This summary is machine-generated.

Certain antibiotic combinations can eliminate resistant bacteria. This discovery offers a new strategy for fighting antibiotic-resistant bacterial infections.

Keywords:
AntibioticE. coliResistanceSelectionSuppression

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Quadruple-Checkerboard: A Modification of the Three-Dimensional Checkerboard for Studying Drug Combinations
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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Pharmacology

Background:

  • Antibiotic resistance poses a significant global health threat.
  • The emergence of multidrug-resistant bacteria necessitates novel treatment strategies.

Purpose of the Study:

  • To investigate the efficacy of antibiotic combinations in selecting against resistant bacterial strains.
  • To explore a potential new approach for combating antibiotic resistance.

Main Methods:

  • Bacterial cultures were exposed to various combinations of antibiotics.
  • Selection pressures and resistance profiles were monitored over time.

Main Results:

  • Specific antibiotic combinations demonstrated a selective pressure against resistant bacterial populations.
  • The effectiveness of these combinations varied depending on the bacterial species and antibiotic agents used.

Conclusions:

  • Combinatorial antibiotic therapy can be a viable strategy to counteract antibiotic resistance.
  • Further research is warranted to optimize combination regimens for clinical application.