Muli F, Struthers J K
Department of Medical Microbiology, Manchester Royal Infirmary, United Kingdom.
Antimicrob Agents Chemother. 1998 Jun;42(6):1428-32. doi: 10.1128/AAC.42.6.1428.
Gardnerella vaginalis and Lactobacillus acidophilus have been shown to grow to high titers in a simple biofilm system. This system was used in the present investigation to compare the biofilm-eradicating concentrations (BECs) of amoxicillin, clindamycin, erythromycin, and metronidazole to standard tube MIC and minimum bactericidal concentration (MBC) results. With the lactobacillus, the BEC/tube MBC ratio was at least 16:1, while for G. vaginalis the ratio varied from 2:1 to 512:1. The simple continuous-culture system used in the present investigation is ideal for investigating the BEC for bacteria involved in complex ecological situations such as bacterial vaginosis and may be useful for the identification of the most effective and selective antibiotic therapy.
已证明阴道加德纳菌和嗜酸乳杆菌在一个简单的生物膜系统中能生长至高滴度。在本研究中使用该系统将阿莫西林、克林霉素、红霉素和甲硝唑的生物膜消除浓度(BEC)与标准试管最低抑菌浓度(MIC)和最低杀菌浓度(MBC)结果进行比较。对于乳酸杆菌,BEC/试管MBC比值至少为16:1,而对于阴道加德纳菌,该比值在2:1至512:1之间变化。本研究中使用的简单连续培养系统非常适合研究参与诸如细菌性阴道病等复杂生态情况的细菌的BEC,并且可能有助于确定最有效和最具选择性的抗生素治疗方法。