Wang Siting, Zhao Tianlong, Sun Yuping, Li Sipan, Lu Danya, Qiu Mengmeng, Yan Baofei, Yang Jingwen, Shao Zhitao, Yin Yuqi, Li Shaoguang, Fu Tingming
State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, Nanjing 210023, China.
Microsurgery Department of Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing 100048, China.
ACS Omega. 2025 Feb 12;10(7):7350-7361. doi: 10.1021/acsomega.4c11198. eCollection 2025 Feb 25.
Osteomyelitis is a major challenge in global healthcare, as it requires the simultaneous management of bone defects and bacterial infections, which poses considerable difficulties for orthopedic clinicians. In this study, we developed berberine liposome-modified bone cement specifically aimed at treating osteomyelitis induced by . We characterized the physical properties of this modified bone cement, conducted in vitro antibacterial assays to evaluate its efficacy in eradicating biofilm, established an in vivo rat model of osteomyelitis, and performed histopathological assessments alongside micro-CT analysis of bone parameters. The results indicated that the berberine liposome-modified bone cement exhibited favorable biodegradability and sustained-release characteristics, with a drug release rate of more than 90% within 14 days, while effectively eliminating bacterial biofilm with a biofilm eradication rate of up to 80% and facilitating bone repair with a bone volume fraction of 80%. This innovative treatment demonstrated both safety and efficacy in addressing tibial osteomyelitis in rats, thereby offering novel insights and methodologies for clinical interventions against osteomyelitis.
骨髓炎是全球医疗保健领域的一项重大挑战,因为它需要同时处理骨缺损和细菌感染问题,这给骨科临床医生带来了相当大的困难。在本研究中,我们开发了专门用于治疗由……引起的骨髓炎的黄连素脂质体修饰骨水泥。我们对这种修饰骨水泥的物理性质进行了表征,进行了体外抗菌试验以评估其清除生物膜的效果,建立了骨髓炎大鼠体内模型,并在对骨参数进行微观计算机断层扫描(micro-CT)分析的同时进行了组织病理学评估。结果表明,黄连素脂质体修饰骨水泥具有良好的生物降解性和缓释特性,在14天内药物释放率超过90%,同时能有效消除细菌生物膜,生物膜清除率高达80%,并以80%的骨体积分数促进骨修复。这种创新治疗方法在治疗大鼠胫骨骨髓炎方面显示出安全性和有效性,从而为骨髓炎的临床干预提供了新的见解和方法。