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AMB Express

Table 2 Ursolic acid potentiates bacteriostatic effect of colistin in clinical isolates of Escherichia coli and Klebsiella pneumoniae

From: Ursolic acid inhibits colistin efflux and curtails colistin resistant Enterobacteriaceae

Strains

MIC (μg/ml)

Col

Col + UR

Modulation factor

E. coli

 U3790

32

2

16

 U3176

1

0.5

2

K. pneumoniae

 BC936

32

8

4

 U2016

8

4

2

 BC1415

8

8

1

 BC1994

2

1

2

 MTCC K. pneumoniae

2

0.5

4

 BC2412

1

0.5

2

 U3866

1

0.125

4

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