EFFECTS OF TAZOBACTAM ON THE FREQUENCY OF THE EMERGENCE OF RESISTANT STRAINS FROM ENTEROBACTER-CLOACAE, CITROBACTER-FREUNDII, AND PROTEUS-VULGARIS (BETA-LACTAMASE DEREPRESSED MUTANTS)

被引：13

作者：

HIGASHITANI, F ^{[1
]}

NISHIDA, K ^{[1
]}

HYODO, A ^{[1
]}

INOUE, M ^{[1
]}

机构：

[1] KITASATO UNIV,SCH MED,DEPT MICROBIOL,SAGAMIHARA,KANAGAWA 228,JAPAN

来源：

JOURNAL OF ANTIBIOTICS | 1995年 / 48卷 / 09期

关键词：

D O I：

10.7164/antibiotics.48.1027

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

When Enterobacter cloacae, Citrobacter freundii, and Proteus vulgaris were treated with piperacillin (PIPC) in combination with tazobactam (TAZ), the in vitro frequency of emergence of resistant strains (beta-lactamase producing mutants) was lower than with PIPC or ceftazidime (CAZ) treated bacteria. In a mouse intraperitoneal infection model caused by E. cloacae, beta-lactamase derepressed mutants were detected following therapy with PIPC or CAZ, although no derepressed mutants were detected after treatment with PIPC in combination with TAZ. This suppression of the selection of derepressed mutants, which produce large amounts of beta-lactamases, by the combination of TAZ and PIPC suggests that the combination delays the increase of resistant mutants compared with PIPC alone.

引用

页码：1027 / 1033

页数：7

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