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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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Forces shaping the antibiotic resistome.

Julie A Perry1, Gerard D Wright

  • 1M. G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada.

Bioessays : News and Reviews in Molecular, Cellular and Developmental Biology
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Summary
This summary is machine-generated.

Horizontal gene transfer (HGT) is a key driver of antibiotic resistance. A recent study found limited HGT in soil environments, suggesting a need for environmental monitoring and antibiotic stewardship.

Keywords:
antibiotic resistancefunctional metagenomicshorizontal gene transferresistome

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Area of Science:

  • Environmental science
  • Microbiology
  • Genetics

Background:

  • Antibiotic resistance is a global health crisis.
  • Resistance genes spread via mutation and horizontal gene transfer (HGT).
  • HGT's role in environmental antibiotic resistance dissemination is debated.

Purpose of the Study:

  • To investigate the extent of HGT in soil environments.
  • To reconcile conflicting findings on HGT in environmental versus clinical settings.

Main Methods:

  • Utilized a culture-independent functional metagenomics approach.
  • Analyzed soil samples to detect gene transfer events.

Main Results:

  • Found limited evidence of HGT in the studied soil environment.
  • Contrasted with previous findings of HGT between environmental and human microbiomes from the same researchers.
  • Hypothesized that lack of selective pressure in the environment may explain the low HGT rates.

Conclusions:

  • Environmental antibiotic pollution requires careful monitoring.
  • Stringent antibiotic stewardship is crucial for combating resistance.
  • Environmental HGT dynamics may be context-dependent, influenced by selective pressures.