Vitamin D receptors have been isolated in brain, prostate, breast, colon, heart and immune cells and these cells respond directly to 1,25-dihydroxyvitamin D
0 mmol/L)] (a) 25-Hydroxyvitamin D 13 [micro]g/mL 30-80 [micro]g/mL 1,25-Dihydroxyvitamin D
89 ng/L 15-75 ng/L (a) Interval age adjusted for 3 years.
And make sure that your doctor orders a test for 25-hydroxyvitamin D, not 1,25-dihydroxyvitamin D
, which is the active form.
receptor in bovine thymus gland.
Intact parathyroid hormone (PTH) and 1,25-dihydroxyvitamin D
in plasma were determined respectively by an IRMA and a radioreceptor assay (both from Nichols Institute).
We prospectively examined the relationship between plasma levels of 25-hydroxyvitamin D [25(OH)D] and 1,25-dihydroxyvitamin D
[1,25(OH)2D] and risk of breast cancer in a case-control study nested within the Nurses' Health Study cohort.