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利福平、利福喷汀和KRM-1648对一组具有已知rpoB基因突变的耐利福平结核分枝杆菌分离株的抗分枝杆菌活性比较。

Comparative antimycobacterial activities of rifampin, rifapentine, and KRM-1648 against a collection of rifampin-resistant Mycobacterium tuberculosis isolates with known rpoB mutations.

作者信息

Moghazeh S L, Pan X, Arain T, Stover C K, Musser J M, Kreiswirth B N

机构信息

Tuberculosis Center, Public Health Research Institute, New York, New York 10016, USA.

出版信息

Antimicrob Agents Chemother. 1996 Nov;40(11):2655-7. doi: 10.1128/AAC.40.11.2655.

Abstract

A collection of 24 rifampin-resistant clinical isolates of Mycobacterium tuberculosis with characterized RNA polymerase beta-subunit (rpoB) gene mutations was tested against the antimycobacterial agents rifampin, rifapentine, and KRM-1648 to correlate levels of resistance with specific rpoB genotypes. The results indicate that KRM-1648 is more active in vitro than rifampin and rifapentine, and its ability to overcome rifampin resistance in strains with four different genetic alterations may prove to be useful in understanding structure-function relationships.

摘要

收集了24株具有特征性RNA聚合酶β亚基(rpoB)基因突变的耐利福平结核分枝杆菌临床分离株,对其进行抗分枝杆菌药物利福平、利福喷汀和KRM-1648的测试,以将耐药水平与特定的rpoB基因型相关联。结果表明,KRM-1648在体外比利福平和利福喷汀更具活性,其克服具有四种不同基因改变菌株中利福平耐药性的能力可能有助于理解结构-功能关系。

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