Ashraf Haroon, Font Kerri, Powell Charles, Schurr Michael
Department of Surgical Dentistry, Division of Periodontics, University of Colorado School of Dental Medicine, Aurora, CO, USA.
Private Practice, Tucson, Arizona, USA.
Int J Dent. 2019 Jul 11;2019:1269534. doi: 10.1155/2019/1269534. eCollection 2019.
The aim of this study was to evaluate wound biomodification by assessing antimicrobial properties present within a human-derived composite amnion-chorion membrane (ACM).
Membranes analyzed were the human-derived ACM BioXclude™ and the porcine-derived collagen membrane Bio-Gide®. Paper discs with and without tetracycline served as positive and negative controls, respectively. The same number of colony-forming units per milliliter for each bacterial species (, , and ) was inoculated on each of the discs. Discs from each group were removed at 12 and 24 hours and sonicated to remove the bacteria off the membranes. A serial dilution was performed to quantify bacterial growth.
The ACM inhibited growth at all time points, with all bacterial strains, identical to the negative control tetracycline discs. The collagen membrane and positive controls did not inhibit growth of any of the bacterial species throughout the 24-hour study period. < 0.05 for microbial growth on ACM or negative control vs. either collagen membrane or positive control.
ACM was proven to be as bactericidal as paper discs inoculated with tetracycline at its minimum bactericidal concentration. The ACM bactericidal property may be beneficial in the early wound healing process.
本研究旨在通过评估人源羊膜 - 绒毛膜复合膜(ACM)中的抗菌特性来评价伤口生物改性。
分析的膜为人源ACM BioXclude™和猪源胶原膜Bio-Gide®。分别以含和不含四环素的纸片作为阳性和阴性对照。将每种细菌(金黄色葡萄球菌、大肠杆菌和铜绿假单胞菌)每毫升相同数量的菌落形成单位接种到每个纸片上。在12小时和24小时时从每组中取出纸片并进行超声处理以去除膜上的细菌。进行系列稀释以量化细菌生长。
ACM在所有时间点均抑制所有菌株的生长,与阴性对照四环素纸片相同。在整个24小时的研究期间,胶原膜和阳性对照均未抑制任何细菌种类的生长。ACM或阴性对照上的微生物生长与胶原膜或阳性对照相比,P<0.05。
已证明ACM在其最低杀菌浓度下与接种四环素的纸片一样具有杀菌作用。ACM的杀菌特性可能在伤口愈合早期过程中有益。