Resistance of Cystic Fibrosis and Non-Cystic Fibrosis Pathogens to Hydrogen Peroxide and Hypochlorous Acid
Author Information
Author(s): Ryan W Bonvillain, Richard G Painter, Elisa M Ledet, Guoshun Wang
Primary Institution: Louisiana State University Health Sciences Center
Hypothesis
The HOCl production abnormality in CF neutrophils plays a major role in the disease pathogenesis, leading to the prevalence of HOCl-resistant bacteria.
Conclusion
The study found that the resistance profiles of various pathogens to oxidants correlate with their clinical prevalence in cystic fibrosis infections.
Supporting Evidence
- Pseudomonas aeruginosa was found to be resistant to both hydrogen peroxide and hypochlorous acid.
- Staphylococcus aureus was susceptible to hydrogen peroxide but resistant to hypochlorous acid.
- Klebsiella pneumoniae showed extreme resistance to high doses of hydrogen peroxide but was sensitive to low doses of hypochlorous acid.
- The resistance profiles of the pathogens matched the clinical profiles observed in cystic fibrosis infections.
Takeaway
Some germs that make people with cystic fibrosis sick are better at surviving cleaning chemicals than others, which helps them stick around and cause problems.
Methodology
The study compared the susceptibility of various pathogens to hydrogen peroxide and hypochlorous acid in vitro, assessing their resistance profiles and effects on ATP production and membrane integrity.
Limitations
The study only tested bacteria in log-phase growth, which may not represent their behavior in chronic infections.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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