Bansal M B, Thadepalli H
Antimicrob Agents Chemother. 1983 Jan;23(1):166-8. doi: 10.1128/AAC.23.1.166.
Carbenicillin, piperacillin, and mezlocillin, when combined with cefoxitin, exhibited synergism against 20, 13, and 10 isolates of Bacteroides fragilis, respectively, and no antagonism was observed in 19 of 20 strains. These results suggest that if beta-lactamase was induced from B. fragilis by cefoxitin, it was ineffective against the antibiotics tested.
羧苄西林、哌拉西林和美洛西林与头孢西丁联合使用时,分别对20株、13株和10株脆弱拟杆菌表现出协同作用,并且在20株菌株中有19株未观察到拮抗作用。这些结果表明,如果头孢西丁诱导脆弱拟杆菌产生β-内酰胺酶,那么该酶对所测试的抗生素无效。