PMID- 6699136 OWN - NLM STAT- MEDLINE DCOM- 19840420 LR - 20161019 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 58 IP - 4 DP - 1984 Apr TI - Vitamin D metabolism in familial benign hypercalcemia (hypocalciuric hypercalcemia) differs from that in primary hyperparathyroidism. PG - 744-7 AB - We compared serum concentrations of immunoreactive PTH and plasma levels of vitamin D metabolites in 11 patients with adenomatous primary hyperparathyroidism and 32 individuals with the syndrome of familial benign hypercalcemia or familial hypocalciuric hypercalcemia (FHH). Serum immunoreactive PTH was elevated in the hyperparathyroid group but indistinguishable from control in FHH, despite comparable degrees of hypercalcemia. Plasma 25-hydroxyvitamin D concentrations were normal in both groups, but plasma 1,25-dihydroxyvitamin D levels in FHH were significantly lower than control (P less than 0.0025) or hyperparathyroid (P less than 0.01) values. FHH is pathogenetically distinct from primary hyperparathyroidism and should not be thought of simply as a variant of that condition. FAU - Law, W M Jr AU - Law WM Jr FAU - Bollman, S AU - Bollman S FAU - Kumar, R AU - Kumar R FAU - Heath, H 3rd AU - Heath H 3rd LA - eng GR - R01 DK025409/DK/NIDDK NIH HHS/United States GR - AM-19607/AM/NIADDK NIH HHS/United States GR - AM-25409/AM/NIADDK NIH HHS/United States GR - AM-27440/AM/NIADDK NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (Parathyroid Hormone) RN - 1406-16-2 (Vitamin D) RN - 27YLU75U4W (Phosphorus) RN - SY7Q814VUP (Calcium) SB - IM MH - Adult MH - Aged MH - Calcium/blood MH - Female MH - Humans MH - Hypercalcemia/*blood/genetics MH - Hyperparathyroidism/*blood MH - Male MH - Middle Aged MH - Parathyroid Hormone/blood MH - Phosphorus/blood MH - Vitamin D/*blood EDAT- 1984/04/01 00:00 MHDA- 2001/03/28 10:01 CRDT- 1984/04/01 00:00 PHST- 1984/04/01 00:00 [pubmed] PHST- 2001/03/28 10:01 [medline] PHST- 1984/04/01 00:00 [entrez] AID - 10.1210/jcem-58-4-744 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 1984 Apr;58(4):744-7. doi: 10.1210/jcem-58-4-744.