头孢哌酮钠他唑巴坦钠的体内抗菌作用研究

目的与方法　用Bliss法检测头孢哌酮钠他唑巴坦钠(4:0 5 )的抗菌活性 ,为临床研究和治疗提供依据。结果　头孢哌酮钠他唑巴坦钠 (4:0 5 )对产酶的金黄色葡萄球菌和埃希氏大肠杆菌感染的小鼠体内抗菌活性ED50 分别为 92 0mg·kg-1和 3 4mg·kg-1,头孢哌酮钠舒巴坦钠 (1∶1)的ED50 值为 16 4 0mg·kg-1和 6 9mg·kg-1,单组分头孢哌酮钠的ED50 值分别为 2 5 6 5mg·kg-1和 38 9mg·kg-1。头孢哌酮钠他唑巴坦钠 (4∶0 5 )对绿脓杆菌感染小鼠的体内抗菌活性ED50 为 10 3 3mg·kg-1,头孢哌酮钠舒巴坦钠 (1∶1)的ED50 为 16 5 2mg·kg-1。结论　国产头孢哌酮钠他唑巴坦钠对产酶的金黄色葡萄球菌、埃希氏大肠杆菌和绿脓杆菌感染小鼠有明显抗菌作用 ,且抗菌作用明显优于头孢哌酮钠单组分和海舒必

Study on antibacterial activity of cefoperazone sodium and tazobactam sodium in vivo

AIM and METHOD To investigate the antibacterial activity (ED 50 value) of cefoperazonesodium and tazobactam sodium (4∶0 5) in vivo using minor modified Karbers method,which will offer some important evidences for clinical trial and therapy RESULTS The ED 50 value of cefoperazone sodium and tazobactam sodium(4∶0 5) and Cefoperazone sodium and sulbactam sodium (1∶1) in vivo protested against zymogenic staphylococcus aureus and Escherichia coli in mice infected by these bacteria were 92 0 mg·kg -1 and 3 4 mg·kg -1 ,164 0 mg·kg -1 and 6 9 mg·kg -1 ,respectively,and 256 5 mg·kg -1 and 38 9 mg·kg -1 in single composed compound of cefoperazone sodium,cefoperazone sodium and tazobactam sodium (4∶0 5) in vivo had more potent antibacterial activity compared with cefoperazone sodium and sulbactam sodium (1∶1) and single composed compound of cefoperazone sodium. The ED 50 value of cefoperazone sodium and tazobactam sodium (4∶0 5) protested against pseudomonas aeruginosa in mice infected was lower than that of Cefoperazone sodium and sulbactam sodium and single composed compound of cefoperazone sodium CONCLUSION Cefoperazone sodium and tazobactam sodium made in China has an markedly therapeutic effect on antibacterial activity protected against zymogenic staphylococcus aureus and Escherichia coli and pseudomonas aeruginosa in mice infected by these bacteria