Mesh : Isoniazid / chemistry pharmacology Bone Cements / chemistry Animals Hydrazones / chemistry pharmacology Antitubercular Agents / chemistry pharmacology administration & dosage Mice Drug Liberation Polymethyl Methacrylate / chemistry Materials Testing Biocompatible Materials / chemistry pharmacology

来  源:   DOI:10.1039/d3tb02661b

Abstract:
A robust and easily manufactured high-strength and long-term release hydrazone-based isoniazid acrylic (HIA) bone cement is reported. The mechanical strength of HIA bone cement is similar to that of normal polymethyl methacrylate (PMMA) bone cement, far surpassing that of traditional isoniazid-containing antibiotic-loaded bone cement (INH bone cement). Isoniazid is connected to the bone cement through bioorthogonal hydrazone chemistry, and it possesses release properties superior to those of INH bone cement, allowing for the sustained release of isoniazid for up to 12 weeks. In vivo and in vitro studies also indicate that HIA cement exhibits better biocompatibility than INH bone cement. The results of this study not only signify progress in the realm of antimicrobial bone cement for addressing bone tuberculosis but also enhance our capacity to create and comprehend high-performing antimicrobial bone cement.
摘要:
据报道,一种坚固且易于制造的高强度和长期释放的基于hydr的异烟肼丙烯酸(HIA)骨水泥。HIA骨水泥的机械强度与普通聚甲基丙烯酸甲酯(PMMA)骨水泥相似,远远超过传统的含异烟肼的抗生素负载骨水泥(INH骨水泥)。异烟肼通过生物正交腙化学与骨水泥相连,它具有优于异烟肼骨水泥的释放性能,允许持续释放异烟肼长达12周。体内和体外研究还表明,HIA骨水泥比INH骨水泥表现出更好的生物相容性。这项研究的结果不仅表明在抗微生物骨水泥领域取得了进展,以解决骨结核问题,而且还增强了我们创建和理解高性能抗微生物骨水泥的能力。
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