Table 2

Kinetic parameters for UDPGA-dependent metabolism of statins in liver microsomal preparations

StatinSpeciesKmVmaxCLint
μM pmol/min/mg μl/min/mg
SVAHuman416  ± 802-a 162  ± 230.4
Dog19  ± 8263  ± 2813.8
Rat35  ± 457  ± 21.6
AVAHuman16  ± 452  ± 33.3
Dog13  ± 269  ± 35.3
Rat16  ± 324  ± 11.5
CVAHuman83  ± 4238  ± 42.9
Dog92  ± 15184  ± 132.0
Rat90  ± 6278  ± 83.1

Incubations were performed in duplicate for each substrate concentration using pooled liver microsomes from humans (n = 20), dogs (n = 4), and rats (n = 6). Values are estimates ± S.E.

  • 2-a  Extrapolated values.