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. Author manuscript; available in PMC: 2008 Jun 30.
Published in final edited form as: J Nutr. 2007 Apr;137(4):904–909. doi: 10.1093/jn/137.4.904

TABLE 4.

ITC excretion in urine following a broccoli meal in humans according to GST genotype1

n ITC, μmol ITC/24 h P-value2
GSTM1
    Present 44 9.9 ± 1.4
    Deletion 47 14.0 ± 1.3 0.48
GSTT1
    Present 72 11.6 ± 0.9
    Deletion 18 9.9 ± 2.7 0.05
GSTP1
    A/A 39 9.9 ± 1.5
    G/A 43 14.8 ± 1.4
    G/G 10 10.8 ± 1.4 0.48
GSTA1
    *A/*A 28 13.2 ± 1.6
    *A/*B 49 11.0 ± 1.4
    *B/*B 14 9.9 ± 2.1 0.22
Combined genes
    0 or 1 variant 24 10.4 ± 1.8
    2 variants 28 11.5 ± 1.7
    ≥3 variants 36 11.8 ± 1.5 0.30
1

Values are medians ± SE.

2

P-value from regression of log-transformed ITC values adjusted for gender.