The in-vitro antibacterial activity of AMA-1080 against both Gram-positive and Gram-negative clinical isolates was studied in comparison with that of aztreonam, cefotaxime, ceftazidime and cefoperazone. AMA-1080 showed a potent antibacterial activity against Gram-negative bacteria, particularly, the strains of Enterobacteriaceae. In addition, AMA-1080 inhibited the strains of genus Pseudomonas at the low concentrations. However, AMA-1080 showed less active against Gram-positive bacteria. It was found that AMA-1080 was highly resistant to hydrolysis by both chromosomal and plasmid-mediated beta-lactamases.
K Matsuda, Y Hamana, M Inoue, S Mitsuhashi. In-vitro antibacterial activity of AMA-1080. The Journal of antimicrobial chemotherapy. 1985 Nov;16(5):539-47
PMID: 3878360
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