永康市金黄色葡萄球菌感染情况及7种中草药体外抑菌效果研究
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R378.1+1

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金华市公益性技术应用研究项目(2021-4-328)


Study on the Infection of Staphylococcus aureus in Yongkang City and the Antibacterial Effect of Seven Chinese Herbs in Vitro
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    摘要:

    目的: 了解永康市甲氧西林敏感金黄色葡萄球菌(MSSA) 和耐甲氧西林金黄色葡萄球 菌(MRSA) 菌株分布情况及其耐药性,通过体外抑菌实验筛选出抑菌效果较好的中草药,以为新型抑菌药开 发奠定基础。方法:从医院检验科分离出MSSA 和MRSA 菌株,同时制备7 种中草药提取物进行MSSA 和 MRSA 抑菌实验,并进行分析。结果:2020 年10 月—2022 年9 月分别检出MRSA 208 株,MSSA 586 株,菌 株来源主要是痰液、分泌物、脓液和血液;其中,MRSA 对青霉素G、苯唑西林完全耐药,对替加环素、万古 霉素、替考拉宁和利奈唑胺完全敏感;MSSA 对苯唑西林、替加环素、万古霉素、替考拉宁和利奈唑胺完全敏 感;7 种中草药的水提物和有机物提取物对金黄色葡萄球菌均具有抑菌效果,但是对节白蜡树有机物提取物抑 菌效果最好,且对本地MRSA 的最低抑菌浓度(MIC) 值在640 μg/mL~1 280 μg/mL 之间。结论:永康市未发 现万古霉素耐药性MRSA 菌株,万古霉素、替考拉宁和利奈唑胺仍可以作为治疗MSSA 和MRSA 感染首选药 物,7 种中草药提取物体外抑菌实验表明,对节白蜡树有机物提取物对MRSA 具有良好的抑菌效果,可能具备 作为新型抑菌药物进行探讨的价值。

    Abstract:

    Abstract: Objective: To understand the distribution and drug resistance of methicillin- sensitive Staphylococcus aureus (MSSA) and methicillin-resistant Staphylococcus aureus (MRSA) strains in Yongkang city, and to screen out Chinese herbs with better antibacterial effect through in vitro antibacterial experiments,so as to lay the foundation for the development of new antibacterial drugs. Methods:MSSA and MRSA strains were isolated from hospital laboratory, and 7 kinds of Chinese herbal extracts were prepared for MSSA and MRSA bacteriostatic experiment and analysis. Results: From October 2020 to September 2022, a total of 208 strains of MRSA and 586 strains of MSSA were detected, mainly from sputum, secretions, pus and blood. Among them, MRSA was completely resistant to Penicillin G and Oxacillin, and completely sensitive to Tigacycline, Vancomycin, Teicolanin and Linezolid. MSSA was completely sensitive to Oxaillin, Tigacycline, Vancomycin, Teicolanin and Linezolid. Water extracts and organic extracts of the 7 Chinese herbs had antibacterial effects on Staphylococcus aureus, but the antibacterial effects on organic extracts of Fraxinus hupehensis were the best,and the minimal inhibitory concentraction (MIC) values against local MRSA ranged from 640 μg/mL to 1 280 μg/mL. Conclusion: Vancomycin-resistant MRSA strains were not found in Yongkang City,and Vancomycin,Teicoplanin and Linezolid could still be used as the preferred drugs for treating MSSA and MRSA infections. In vitro bacteriostatic experiments of 7 Chinese herbal extracts showed that the organic extract of Fraxinus hupehensis had a good antibacterial effect on MRSA, and may have the value of exploring as a new antibacterial drug.

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吕美艳,方杭,陈俊,王蔚,徐象威.永康市金黄色葡萄球菌感染情况及7种中草药体外抑菌效果研究[J].新中医,2023,55(17):1-6

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  • 在线发布日期: 2023-09-07
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