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  • Title: Bisphosphonates and primary hyperparathyroidism.
    Author: Rodan GA.
    Journal: J Bone Miner Res; 2002 Nov; 17 Suppl 2():N150-3. PubMed ID: 12412793.
    Abstract:
    Bisphosphonates (BP) are pyrophosphate analogs that include very potent inhibitors of bone resorption. BPs act directly on the osteoclast, suppressing isoprenylation by inhibiting farnesyl diphosphate synthase in the cholesterol pathway, which causes osteoclast inactivation. BPs should therefore reduce the bone loss produced by any cause, including hyperparathyroidism and hypercalcemia of malignancy (MIH), caused by parathyroid hormone (PTH) and PTH-related protein (PTHrP), respectively. BPs at higher doses than used in osteoporosis are indeed the treatment of choice for malignancy-induced hypercalcemia. Limited, but convincing, data show that BPs at doses effective in osteoporosis also reverse bone loss associated with mild primary hyperparathyroidism (PHPT).
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