摘要
目的:考察2-氨基壬烷-6-甲氧基四氢萘盐酸盐(10b)对氟康唑耐药白念珠菌的体外抗菌活性。方法:采用美国临床和实验室标准协会(CLSI)推荐的微量液基稀释法考察10b对20株氟康唑耐药白念珠菌的抗菌活性。通过琼脂纸片扩散实验、时间生长曲线实验和MFC值测定,比较10b与酮康唑对氟康唑耐药白念珠菌SC5314R的体外抗真菌活性。通过罗丹明6G外排试验初步探讨10b可能的作用机制。结果:10b对氟康唑耐药白念珠菌的抗菌活性强于酮康唑,其作用机制可能与抑制药物流出泵外排功能有关。结论:10b化学结构新颖,对氟康唑耐药白念珠菌体外抗菌活性强大,值得深入探讨和研究。
OBJECTIVE To investigate 2-Amino-nonyl-6-methoxyl-tetralin muriate (10 b) in vitro activity against flucon azole-resistant Candida albicans. METHODS The antifungal activities of 10 b against 20 fluconazole-resistant Candida albi- cans strains were assayed by microbroth dilution in 96-well plates according to methods of the Clinical and Laboratory Standards Institute (CLSI). The sensitivity to fluconazole-resistant Candida albicans strain SC5314R of 10 b with ketoconazole was corn pared by plotting the time-growth curves and determining the values of MFC. In addition, the potential mechanism of 10 b a- gainst flueonazole-resistant Candida albicans strains was investigated by Rhodamine 6G efflusion test. RESULTS 10b had a stronger antifungal activity to fluconazole-resistant Candida albicans strains than ketoconazole did. Its potential mechanism maybe related to the inhibition of the function of muhidrug efflux pump. CONCLUSION 10b possessed a novel chemical struc ture and powerful antifungal activity against fluconazole-resistant Candida albicans strains which deserve further investigating.
出处
《中国医院药学杂志》
CAS
CSCD
北大核心
2014年第9期720-724,共5页
Chinese Journal of Hospital Pharmacy