Soriano F, Edwards R, Greenwood D
Department of Microbiology, University Hospital, Queen's Medical Centre, Nottingham, United Kingdom.
Antimicrob Agents Chemother. 1992 Jan;36(1):223-6. doi: 10.1128/AAC.36.1.223.
MICs and turbidimetric experiments revealed a negligible inoculum effect with two Escherichia coli strains exposed to cefminox and cefoxitin, whereas a marked inoculum effect was revealed after exposure to cefotaxime, ceftizoxime, and imipenem. The activities of the cephamycins were associated with spheroplast formation and bacteriolysis at concentrations close to the MIC, whereas the other agents induced the formation of filaments or, in the case of imipenem, rounded cells.
最低抑菌浓度(MIC)和比浊法实验显示,两种大肠杆菌菌株暴露于头孢米诺和头孢西丁时接种量效应可忽略不计,而暴露于头孢噻肟、头孢唑肟和亚胺培南后则显示出明显的接种量效应。头孢霉素类药物的活性与接近最低抑菌浓度时原生质球的形成和细菌溶解有关,而其他药物则诱导丝状形成,或就亚胺培南而言,诱导圆形细胞形成。