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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Sulbactam-cefoperazone polyhydroxybutyrate-co-hydroxyvalerate (PHBV) local antibiotic delivery system: In vivo effectiveness and biocompatibility in the treatment of implant-related experimental osteomyelitis
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Sulbactam-cefoperazone polyhydroxybutyrate-co-hydroxyvalerate (PHBV) local antibiotic delivery system: In vivo effectiveness and biocompatibility in the treatment of implant-related experimental osteomyelitis

机译:舒巴坦-头孢哌酮聚羟基丁酸酯-羟基戊酸共(PHBV)局部抗生素递送系统:体内有效性和生物相容性在治疗植入物相关的实验性骨髓炎中的作用

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摘要

In this study, a novel antibiotic carrier system for use in the treatment of implant-related and chronic osteomyelitis was developed. Sulbactam-cefoperazone was introduced to rods of polyhydroxybutyrate-co-hydroxyvalerate (22 mol percent HV, w/w), a member of a family of microbial-origin polymer that is biodegradable, biocompatible, and osteoconductive due to its piezoelectric property. The antibiotic-loaded carrier was implanted into the infection site that was induced by Staphylococcus aureus inoculation into the rabbit tibia. The effectiveness of this was assessed macroscopically, radiographically, bacteriologically, and histo-pathologically. Findings of infection subsided on day 15 and almost complete remission was observed on day 30. The control side that contained antibiotic-free rods, however, worsened. These findings prompted us to conclude that the novel biodegradable antibiotic carrier developed in the present study seems to be a promising candidate for use in the treatment of severe bone infection.
机译:在这项研究中,开发了一种新型的抗生素载体系统,用于治疗与植入物有关的慢性骨髓炎。将舒巴坦-头孢哌酮引入到聚羟基丁酸酯-共-羟基戊酸酯(22摩尔%HV,w / w)棒中,该棒是微生物起源的聚合物家族的成员,由于其压电性质,该聚合物可生物降解,生物相容并具有骨传导性。将载有抗生素的载体植入感染部位,该部位是由金黄色葡萄球菌接种到兔胫骨中诱导的。宏观,射线照相,细菌学和组织病理学评估了其有效性。感染的发现在第15天消退,在第30天观察到几乎完全缓解。但是,含有无抗生素棒的对照侧病情恶化。这些发现促使我们得出结论,本研究开发的新型可生物降解的抗生素载体似乎是用于治疗严重骨感染的有希望的候选者。

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