Mar Drugs:甘露醇 - 壳聚糖混合糊剂装载抗生素用于对抗临床骨骼肌肉感染

2019-09-10 不详 网络

甘露醇是一种多元醇细菌代谢产物,已被证明能激活细菌生物膜内的休眠细胞。该研究旨在评估甘露醇,壳聚糖和聚乙二醇的可注射混合物用于递送抗生素和甘露醇以根除葡萄球菌生物膜。结果显示,与不含甘露醇的混合物相比,甘露醇混合物是可注射的并且酶溶菌酶的解离和降解减少。万古霉素和阿米卡星以爆发反应洗脱,活性浓度延长至7天,而不含甘露醇的混合物则为5天。第一天爆发后,甘露醇从糊状物中洗脱,持续到第4天。含有和不含抗

甘露醇是一种多元醇细菌代谢产物,已被证明能激活细菌生物膜内的休眠细胞。该研究旨在评估甘露醇,壳聚糖和聚乙二醇的可注射混合物用于递送抗生素和甘露醇以根除葡萄球菌生物膜。

结果显示,与不含甘露醇的混合物相比,甘露醇混合物是可注射的并且酶溶菌酶的解离和降解减少。万古霉素和阿米卡星以爆发反应洗脱,活性浓度延长至7天,而不含甘露醇的混合物则为5天。第一天爆发后,甘露醇从糊状物中洗脱,持续到第4天。含有和不含抗生素的甘露醇糊剂的洗脱液与不含甘露醇的混合物相比,使得已建立的金黄色葡萄球菌生物膜的活力降低了95.5%。细胞相容性试验表明对成纤维细胞的存活率没有不利影响。炎症反应的体内评估显示甘露醇混合物在第1周(2.6±1.1)和第4周(3.0±0.8)评分在2-4范围内,表明中度炎症并且与非甘露醇糊相当(p = 0.065) 。

综上所述,这种糊剂可以装载临床医生选择的抗生素,并用作肌肉骨骼感染预防和治疗的辅助疗法。

原始出处:

Pace LR, Harrison ZL, et al., Characterization and Antibiofilm Activity of Mannitol-Chitosan-Blended Paste for Local Antibiotic Delivery System. Mar Drugs. 2019 Sep 2;17(9). pii: E517. doi: 10.3390/md17090517.

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    2020-07-23 wangbingxhy
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    2019-12-11 tsing_hit
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