Fig. 4

In a, when comparing the ABCB1 *1 dominant haplotype with the ABCB1 recessive haplotypes *1/*2 and *2, the subjects homozygous for the *1 haplotype had less suppression of 17-OHP on DEX compared to the others. In b, those expressing the dominant genotype had greater suppression of androstenedione on PDN than the recessive genotype