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Impact of ceftibuten on intestinal microflora: in vitro and in vivo studies
M R Gismondo1, L Drago, A Lombardi
1Institute of Medical Microbiology, University of Milan, Italy.
Abstract:
The present study examines the possible interference of ceftibuten on intestinal microflora. In 60 germ-free mice, an intestinal microflora similar to the human one was implanted. The mice were then treated with a single dose and twice the therapeutic dose of ceftibuten. In another experiment, ten human volunteers were given ceftibuten in doses equivalent to 400 mg/day for 7 days in order to evaluate the ceftibuten faecal concentration, the possible interference on microflora and the quantity of indacan (as a measure of the bacterial metabolism in the gut) excreted in one day. The results obtained in vivo and in vitro have shown that ceftibuten in therapeutic doses does not alter the equilibrium of normal intestinal microflora.
Insights
Ceftibuten, an antibiotic, was studied for its effects on gut bacteria. Research showed that therapeutic doses of ceftibuten do not disrupt the balance of normal intestinal microflora in mice or humans.
Area of Science:
- Microbiology
- Pharmacology
- Gastroenterology
Background:
- Intestinal microflora plays a crucial role in maintaining gut health.
- Antibiotics can potentially disrupt the delicate balance of gut microbiota.
- Understanding the impact of specific antibiotics like ceftibuten is important for patient safety.
Purpose of the Study:
- To investigate the potential interference of ceftibuten with intestinal microflora.
- To evaluate the effects of ceftibuten on bacterial metabolism in the gut.
Main Methods:
- Germ-free mice were implanted with human-like intestinal microflora and treated with ceftibuten.
- Human volunteers received ceftibuten (400 mg/day for 7 days) to assess fecal concentrations and microflora impact.
- Indacan excretion was measured as an indicator of bacterial metabolism.
Main Results:
- In vivo and in vitro studies demonstrated no significant alteration in normal intestinal microflora equilibrium.
- Ceftibuten at therapeutic doses did not disrupt the established gut microbiota in mice.
- Human trials showed no adverse effects on microflora balance or bacterial metabolism.
Conclusions:
- Ceftibuten, at therapeutic doses, does not negatively impact the equilibrium of normal intestinal microflora.
- The antibiotic appears safe for use concerning its effects on gut microbiota.
- Further research can explore long-term effects or impacts on specific bacterial species.