Table 4

Mean serum total bilirubin concentrations in participants stratified by GSTM1/T1 genotype and diet period

Total bilirubin (μmol/L)
BasalSingle-dose cruciferousDouble-dose cruciferousCruciferous plus apiaceous
GSTM1+/GSTT1+ (n = 26)15.39 ± 1.37*ac15.05 ± 1.37ac14.19 ± 1.20b14.36 ± 1.20bc
GSTM1-null/GSTT1+ (n = 30)15.90 ± 1.54a14.88 ± 1.37b14.88 ± 1.37b14.36 ± 1.37b
GSTM1-null/GSTT1-null (n = 14)17.10 ± 1.71a16.07 ± 1.54ab14.88 ± 1.54b15.56 ± 1.54ab

NOTE: Means not sharing common superscript within a genotype are significantly different as tested by ratio of means (P < 0.05).

  • *Back-transformed LS means ± LS SE, adjusted for sex, diet order, and habitual and day 0 bilirubin concentrations.