Zinc's Effect on E. coli Resistance to Ciprofloxacin
Author Information
Author(s): Suprenant Mark P., Ching Carly, Gross Neila, Sutradhar Indorica, Anderson Jessica E., El Sherif Nourhan, Zaman Muhammad H.
Primary Institution: Boston University
Hypothesis
Does zinc pre-exposure influence the development of ciprofloxacin resistance in E. coli?
Conclusion
Zinc pre-exposure accelerates the development of ciprofloxacin resistance in E. coli but does not lead to genetic changes.
Supporting Evidence
- 5 days of zinc pre-exposure led to nearly a 4× and 3× higher MIC after 2 and 3 days of ciprofloxacin exposure, respectively.
- Zinc pre-exposure did not result in genetic changes in E. coli.
- Co-exposure to zinc and ciprofloxacin delayed resistance development compared to ciprofloxacin alone.
Takeaway
If E. coli bacteria are exposed to zinc before antibiotics, they can become resistant to the antibiotics faster.
Methodology
The study involved exposing E. coli to zinc and then to ciprofloxacin, measuring the minimum inhibitory concentration (MIC) over time.
Limitations
The study primarily focused on in vitro conditions, which may not fully represent in vivo scenarios.
Statistical Information
P-Value
0.0061, 0.0176
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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