Table 2

Epoxidation of 1,2-VCHE in hepatic microsomes isolated from B6C3F1 mice treated with different inducing agents

TreatmentP-450VCD2-aFold Induction
nmol/mg nmol/min/mg
None1.12.13
VCH1.64.502.1
ACE1.54.222.0
PB1.77.663.6
DEX2.05.872.8

Animals were treated with 7.5 mmol of VCH/kg/day i.p. for 10 days or with inducing agents as described in Materials and Methods,and livers were harvested for microsomal preparation 24 h following the last dose. Microsomes (0.75 mg of protein) were incubated for 10 min with 1 mM 1,2-VCHE.

  • 2-a Data represent the mean of two experiments, each performed in triplicate with pooled microsomes. Relative S.D. was <8%.