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Temafloxacin: in vitro comparison with five other antibacterial agents
A Digranes1, H Hardardottir, K L Bottolfsen
1Department of Microbiology and Immunology, Gade Institute, Haukeland Hospital, Bergen, Norway.
Chemotherapy
|January 1, 1991
Summary
Temafloxacin, a new fluorinated quinolone, demonstrated potent in vitro activity against various bacteria, including Streptococcus pneumoniae and Bacteroides fragilis. Its efficacy varied against Pseudomonas isolates compared to other tested quinolones.
Area of Science:
- Microbiology
- Pharmacology
- Infectious Diseases
Background:
- Emerging antibacterial agents are crucial for combating resistant bacterial infections.
- Fluorinated quinolones represent a significant class of broad-spectrum antibiotics.
- Understanding the in vitro activity spectrum of new antibiotics is essential for clinical application.
Purpose of the Study:
- To evaluate the in vitro antibacterial activity of temafloxacin.
- To compare temafloxacin's activity with established antibiotics like ciprofloxacin and ofloxacin.
- To assess temafloxacin's efficacy against a diverse range of clinical bacterial isolates.
Main Methods:
- Agar dilution method used to determine minimal inhibitory concentrations (MICs).
- Tested 662 recent clinical isolates of Gram-negative and Gram-positive bacteria.
- Compared temafloxacin against ciprofloxacin, fleroxacin, ofloxacin, ceftazidime, and tobramycin.
Main Results:
- Ciprofloxacin exhibited highest potency against Enterobacteriaceae (MIC90 ≤ 0.06 mg/l).
- Temafloxacin showed notable activity against Streptococcus pneumoniae and Bacteroides fragilis.
- Antibacterial activity of temafloxacin was slightly reduced at acidic and alkaline pH levels.
Conclusions:
- Temafloxacin is a potent new fluorinated quinolone with broad-spectrum activity.
- Its activity profile warrants further investigation for clinical utility.
- Temafloxacin demonstrates promising efficacy against specific challenging pathogens.