Unique features of this case include scarring alopecia secondary to sarcoidosis and severe and symptomatic hypercalcemia in association with normal urinary calcium excretion, serum angiotensin-converting enzyme, and 1,25-dihydroxy vitamin D
According to a study serum level of vitamin D should be >32 IU to improve calcium absorption.24 It is suggested that proper vitamin D concentration may also be significant for providing the enzyme renal 1-alpha-hydroxylase which is necessary for the production of 1,25-dihydroxy vitamin D
The relationship between obesity and serum 1,25-dihydroxy vitamin D
concentrations in healthy adults.
 Kidneys convert some amount of calcidiol to calcitriol, which is the biologically active form of vitamin D and also known as 1,25-dihydroxy vitamin D
The activity of renal enzyme responsible for converting 25-hydroxy Vitamin D to the steroid hormone 1,25-dihydroxy Vitamin D
(1,25 [(OH).sub.2]D is stimulated by and tightly regulated by PTH (Goff, 2006).
M2 PHARMA-June 24, 2013-FDA clears use of Immunodiagnostic Systems' 1,25-Dihydroxy Vitamin D
test on IDS-iSYS system(C)2013 M2 COMMUNICATIONS