天然产物研究与开发 ›› 2019, Vol. 31 ›› Issue (5): 747-752.doi: 10.16333/j.1001-6880.2019.5.002

• 研究论文 • 上一篇    下一篇

黄酮化合物对耐药性鲍曼不动杆菌抑菌作用研究

沈焕圻1,张昌发1,林航2,陈鑫1,黄若诗1,曾煦欣1,郭嘉亮1,2*   

  1. 1佛山科学技术学院,佛山 528000;2暨南大学药学院,广州 510632
  • 出版日期:2019-05-24 发布日期:2019-05-24
  • 基金资助:

    国家自然科学基金(81503031,81872832);广东省科技计划(2016A020226004);广东省中医药建设专项(3401 6006);佛山科学技术学院博士启动项目(gg040952)

Antibacterial effect of flavonoids on resistant Acinetobacter baumannii

SHEN Huan-qi1,ZHANG Chang-fa1,LIN Hang2,CHEN Xin1,HUANG Ruo-shi1,ZENG Xu-xin1,GUO Jia-liang1,2*   

  1. 1Foshan University,Foshan 528000,China; 2Pharmacy College,Jinan University,Guangzhou 510632,China
  • Online:2019-05-24 Published:2019-05-24

摘要: 为探索中药黄酮化合物对耐药性鲍曼不动杆菌的抑菌效果。研究通过微量肉汤稀释法,考察40种中药及天然来源的黄酮化合物对三株耐药性鲍曼不动杆菌菌株的体外抑菌作用,测试其最低抑菌浓度与最低杀菌浓度;采用结晶紫染色法进一步测定目标化合物对鲍曼不动杆菌生物被膜形成的能力;探索黄酮联合头孢哌酮/舒巴坦对鲍曼不动杆菌的抑菌效果。研究表明,黄酮单体对于鲍曼不动杆菌具有不同程度的体外抑菌作用。其中部分具有轻微作用,其最小抑菌浓度仅为0.5 mg/mL;黄芩素和汉黄芩苷具有显著的抑菌作用,其最小抑菌浓度分别为0.062 5和 0.125 mg/mL;同时,黄芩素对鲍曼不动杆菌生物被膜形成具有明显的抑制作用。此外,黄芩素和头孢哌酮/舒巴坦联合作用于耐药鲍曼不动杆菌与单用黄芩素或头孢哌酮/舒巴坦比较,浓度有所降低。综上,黄芩素对耐药性鲍曼不动杆菌有较好的体外抑菌效果,这为治疗耐药性鲍曼不动杆菌引发的感染的治疗提供新思路和方向。

关键词: 耐药性鲍曼不动杆菌, 中药黄酮, 抑菌作用, 生物被膜

Abstract: To explore the antibacterial effects of flavonoids on resistant Acinetobacter baumannii.In this research,the antibacterial effects and the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of 40 kinds of traditional Chinese medicine flavonoids on three strains of Acinetobacter baumannii were tested by micro broth dilution method in vitro.Biofilm-forming ability was detected by crystal violet staining assay.The antimicrobial tests of flavonoids combined with Cefoperazone/sulbactam were also conducted.The flavonoids showed antibacterial effect in vitro at different degrees on Acinetobacter baumannii.Most of them have faint inhibitions,and their MICs were 0.5 mg/mL.Baicalein and wogonoside have significant antibacterial effect,of which the mean MICs were 0.062 5 and 0.125 mg/mL,respectively.Meanwhile,baicalein also showed obvious inhibitory effect on biofilm formation.Besides,inhibitory effect of baicalein combined with Cefoperazone /sulbactam on resistant Acinetobacter baumannii reduced compared with single baicalein or cefoperazone /sulbactam.In summary,baicalein has a good antibacterial effect on drug resistant Acinetobacter baumannii,which provides new ideas and directions for the treatment of resistant Acinetobacter baumannii infection.

Key words: resistant Acinetobacter baumannii, traditional Chinese medicine flavonoids, antibacterial effect, biofilm

中图分类号: 

R961