TABLE 2

Kinetic constants for glucuronide and glucoside formation by pooled human liver (HLM), kidney (HKM), and intestinal microsomes (HIM)

Results are means of duplicate measurements.




Km

Vmax

CLint
mM nmol/mg/min μl/mg/min
Human liver microsomes
MPAG 0.18 5.16 28.70
AcMPAG 0.37 0.14 0.38
MPAGls 0.07 0.45 6.40
AcMPAGls 0.06 0.01 0.15
Human kidney microsomes
MPAG 0.57 12.94 22.62
AcMPAG 0.36 0.04 0.12
MPAGls 0.07 0.38 5.57
AcMPAGls 0.83 0.02 0.02
Human intestinal microsomes
MPAG 1.03 0.71 0.69
AcMPAG 1.17 0.01 0.01
MPAGls 1.42 0.02 0.01
AcMPAGls

L.A.

  • L.A., low activity.