万古霉素负载透明质酸-壳聚糖水凝胶注射治疗金黄色葡萄球菌脓毒性关节炎。

IF 2.4 3区化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY

Carbohydrate Research Pub Date : 2025-01-13 DOI:10.1016/j.carres.2025.109384

K. Kumaran , Anil Kumar Vasudevan , R. Jayakumar , Raja Biswas

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引用次数: 0

摘要

金黄色葡萄球菌（金黄色葡萄球菌）是革兰氏阳性机会致病菌，是细菌性脓毒性关节炎的主要病因。万古霉素是治疗耐甲氧西林金黄色葡萄球菌脓毒性关节炎的首选抗生素。接受万古霉素治疗的患者需要住院并监测其血清万古霉素水平，因为血清中万古霉素浓度升高可能导致肝毒性。为了克服万古霉素介导的细胞毒性，我们将万古霉素掺入透明质酸(HA)-壳聚糖（van-HA-壳聚糖）水凝胶制备了一种局部注射给药系统。利用傅里叶红外光谱（FTIR）和流变仪对制备的壳聚糖水凝胶进行了表征。壳聚糖水凝胶可注射，具有剪切减薄特性；并且与血液和细胞相容。体外释药试验表明，8 d内万古霉素的体外释药率为95%。在体外条件下，凡- ha -壳聚糖水凝胶处理6 h后，金黄色葡萄球菌负荷从6.4 Log10 CFU/ml降至3.5 Log10 CFU/ml。凡- ha -壳聚糖水凝胶处理后，金黄色葡萄球菌感染的滑液和骨样品的细菌计数明显减少。本研究结果表明，制备的壳聚糖可用于治疗金黄色葡萄球菌引起的脓毒性关节炎。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Injectable vancomycin loaded hyaluronic acid-chitosan hydrogel for the treatment of Staphylococcus aureus septic arthritis

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Injectable vancomycin loaded hyaluronic acid-chitosan hydrogel for the treatment of Staphylococcus aureus septic arthritis

Staphylococcus aureus (S. aureus) is a Gram positive opportunistic pathogen and a major cause for bacterial septic arthritis. Vancomycin is the preferred antibiotic for the treatment of methicillin resistance S. aureus septic arthritis. Patients undergoing vancomycin treatment need to be hospitalized and their serum vancomycin level should be monitored, as increase in vancomycin concentration in serum may lead to hepatotoxicity. To overcome vancomycin mediated cytotoxicity, we have prepared a local injectable delivery system by incorporating vancomycin into hyaluronic acid (HA)-chitosan (van-HA-chitosan) hydrogel. The prepared van-HA-chitosan hydrogel was characterized using Fourier Transform Infrared Spectroscopy (FTIR) and rheometer. The van-HA-chitosan hydrogel is injectable, has shear thinning behaviour; and is hemo- and cyto-compatible. In vitro drug release assay showed that 95 % of vancomycin was released from the hydrogel in 8 days. Under in vitro conditions the load of S. aureus decreased from 6.4 Log₁₀ CFU/ml to 3.5 Log₁₀ CFU/ml when treated with van-HA-chitosan hydrogel for 6 h. Significant decrease in bacterial counts was observed when S. aureus infected synovial fluid and bone samples were treated with van-HA-chitosan hydrogel. Our results suggest that the prepared van-HA-chitosan could be used for the treatment of septic arthritis caused by S. aureus.

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来源期刊

Carbohydrate Research 化学-生化与分子生物学

CiteScore

5.00

自引率

3.20%

发文量

183

审稿时长

3.6 weeks

期刊介绍： Carbohydrate Research publishes reports of original research in the following areas of carbohydrate science: action of enzymes, analytical chemistry, biochemistry (biosynthesis, degradation, structural and functional biochemistry, conformation, molecular recognition, enzyme mechanisms, carbohydrate-processing enzymes, including glycosidases and glycosyltransferases), chemical synthesis, isolation of natural products, physicochemical studies, reactions and their mechanisms, the study of structures and stereochemistry, and technological aspects. Papers on polysaccharides should have a "molecular" component; that is a paper on new or modified polysaccharides should include structural information and characterization in addition to the usual studies of rheological properties and the like. A paper on a new, naturally occurring polysaccharide should include structural information, defining monosaccharide components and linkage sequence. Papers devoted wholly or partly to X-ray crystallographic studies, or to computational aspects (molecular mechanics or molecular orbital calculations, simulations via molecular dynamics), will be considered if they meet certain criteria. For computational papers the requirements are that the methods used be specified in sufficient detail to permit replication of the results, and that the conclusions be shown to have relevance to experimental observations - the authors'' own data or data from the literature. Specific directions for the presentation of X-ray data are given below under Results and "discussion".