tokens: Since specific receptors for calcitriol have been described in peripheral blood mononuclear cells ( PBMC ) , we have investigated the specific uptake of 3H-labelled 1 , 25 ( OH ) 2D3 in PBMC of 12 women with primary hyperparathyroidism ( PHP ) , 8 women with hyperparathyroidism secondary to chronic renal failure ( SH ) , 9 women with renal transplant ( RT ) , and 23 healthy women .