Related Experiment Video
Updated: Oct 25, 2025

Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
Published on: March 3, 2023
A dietary source of antibiotic tolerance
Patrick Lundgren1, Prateek V Sharma1, Christoph A Thaiss1
1Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
High-fat diets alter gut bacteria and their byproducts, promoting antibiotic tolerance in pathogens. This finding is crucial for understanding how diet impacts bacterial survival and antibiotic resistance development.
Area of Science:
- Microbiology
- Metabolism
- Gut Microbiome Research
Background:
- Antibiotic tolerance allows microbes to survive antibiotic treatment, preceding antibiotic resistance.
- The gut microbiome plays a critical role in host health and disease.
Purpose of the Study:
- To investigate how high-fat diet-induced changes in the gut microbiome and metabolome affect bacterial antibiotic tolerance.
Main Methods:
- Analysis of the intestinal microbiome and metabolome in response to a high-fat diet.
- Assessment of antibiotic tolerance in bacterial pathogens exposed to altered gut environments.
Main Results:
- High-fat diets significantly alter the composition and metabolic output of the gut microbiome.
- These diet-induced changes were found to enhance the antibiotic tolerance of bacterial pathogens.
Conclusions:
- Dietary interventions, specifically high-fat diets, can influence the susceptibility of bacterial pathogens to antibiotics.
- Understanding the interplay between diet, the microbiome, and antibiotic tolerance is vital for developing new strategies against bacterial infections.
Related Concept Videos
Development of Antibiotic Resistance
Antibiotic Selection
Defense Against Bacterial Pathogens
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Antimicrobial Proteins
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Combined Effects of Drugs: Synergism
Such synergistic combinations...
Transduction

