首页> 美国政府科技报告 >Osteomyelitis Treatment with Nanometer-Sized Hydroxyapatite Particles as a Delivery Vehicle for a Ciprofloxacin- Bisphosphonate Conjugate; New Fluoroquinolone-Bisphosphonate Derivatives Show Similar Binding Affinity to Hydroxyapatite and Improved Antibacterial Activity Against Drug-Resistant Pathogens
【24h】

Osteomyelitis Treatment with Nanometer-Sized Hydroxyapatite Particles as a Delivery Vehicle for a Ciprofloxacin- Bisphosphonate Conjugate; New Fluoroquinolone-Bisphosphonate Derivatives Show Similar Binding Affinity to Hydroxyapatite and Improved Antibacterial Activity Against Drug-Resistant Pathogens

机译:用纳米羟基磷灰石颗粒作为环丙沙星 - 二膦酸盐缀合物的递送载体治疗骨髓炎;新的氟喹诺酮 - 二膦酸盐衍生物显示出与羟基磷灰石类似的结合亲和力和改善的抗药物病原体的抗菌活性

获取原文

摘要

Orthopaedic injuries comprise a majority of combat injuries seen in recent US military conflicts. The development and increased use of modern body armor, which has been correlated with decreased chest and upper abdominal injuries (Mabry et al., 2000), will likely continue to result in an increased relative rate of extremity injuries. These injuries commonly present with significant open bone fractures of the limbs and substantial contamination with bacteria from high energy trauma. Once bone infection is established, one fourth of open fractures will progress to osteomyelitis (OM) (Lew and Waldvogel, 1997; Wolski, 2004; Buxton et al., 2004). We developed a novel local drug- delivery system consisting of ciprofloxacin-bisphosphonate conjugate (E41) bound to calcium phosphate (CP) bone particles. In situ, the conjugate dissociates from CP and maintains its antibacterial activity. This topical granulated antibiotic delivery system reduced infection rates in our in vivo OM model. Current studies contrast two CP homeostatic bone-substitute particles, nanometer-sized hydroxyapatite NanOss(Trademark) (Nan), and mu-sized tricalcium phosphate Skelite(Trademark) (TCP) in vitro for binding to E41, and in vivo for E41-CP blockade of rat OM.

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号