Send to

Choose Destination
J Clin Endocrinol Metab. 2000 Oct;85(10):3541-3.

Bone mineral density increases with vitamin D repletion in patients with coexistent vitamin D insufficiency and primary hyperparathyroidism.

Author information

Burns and Allen Research Institute and Division of Endocrinology, Diabetes, and Metabolism, Cedars-Sinai Medical Center, University of California School of Medicine, Los Angeles 90048, USA.


Two hundred and twenty-nine consecutive subjects, 202 women and 27 men, referred for evaluation of osteoporosis or low bone mineral density (BMD) had serum measurements of immunoreactive PTH (iPTH) and 25-hydroxyvitamin D (25OHD) performed. Fifteen individuals (mean age +/- SE, 75+/-2.4 yr) had depressed serum 25OHD (<15 pg/mL) and concomitantly elevated (>65 pg/mL) iPTH levels. After successful treatment of vitamin D insufficiency in all subjects, iPTH remained inappropriately high or frankly elevated in 5, describing a 2.2% prevalence rate of coexistent primary hyperparathyroidism and vitamin D insufficiency in our population. Despite persistent primary hyperparathyroidism, normalization of serum 25OHD levels in these 5 subjects increased their BMD at an annual rate of 6.3% and 8.2% in spine and hip, respectively. Our results suggest that coexistent vitamin D insufficiency can obscure the diagnosis of primary hyperparathyroidism and, when treated effectively, can result in substantial short-terms gains in BMD despite persistence of the inappropriate production of PTH.

[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for Silverchair Information Systems Icon for eScholarship, California Digital Library, University of California
Loading ...
Support Center