Table 5

Effects of aldehyde oxidase (AO) and xantin oxidase (XO) inhibitors on the transformation Lu 29-297 to Lu 35-038 in human liver S-9

Inhibitor ConcentrationMenadion (AO inhibitor)Quercetin (AO inhibitor)Allopurinol (XO inhibitor)
% of control
0.01 mM90.6  ± 9.96.5  ± 3.996.3  ± 12.6
0.1 mM48.6  ± 2.23.0  ± 1.097.2  ± 4.5
1.0 mM47.9  ± 4.1 5-a 5-a
  • 5-a Not tested because of lower solubility of the compound.