Figure 2.
The patient's fibroblasts are resistant to 1,25(OH)2D3. Fibroblasts from the patient and a normal control were treated with 1,25(OH)2D3 for 6 hr. Induction of CYP24A1 gene expression by 1,25(OH)2D3 was analyzed by real time RT-PCR. Values were normalized to TBP expression.