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Miner Electrolyte Metab. 1982 Feb;7(2):86-96.

Therapeutic effects of 25-hydroxycholecalciferol and sodium etidronate on renal osteodystrophy.


The effects of long-term treatment with 25-hydroxycholecalciferol (25OHD3) and disodium ethane-1-hydroxydiphosphonate, or 25OHD3 alone on biochemical parameters, and radiographic and quantitative histomorphometry of bone tissue were evaluated in 17 dialysis patients. They all displayed evidence of bone disease consisting of osteitis fibrosa and defective mineralization of varying degree and predominance. 100 micrograms/day of 25OHD3 significantly improved the state of bone mineralization in many patients with a pronounced fall in the osteoid volume and surface and produced a small reduction in the active resorption surface. Serum parathyroid hormone (iPTH) and alkaline phosphatase levels decreased in some patients. The combination of 25OHD3 with EHDP caused the healing of bone mineralization as did 25OHD3 alone and produced a significant fall in serum alkaline phosphatase and iPTH. The mean magnitude of the reduction in iPTH was higher in patients treated with 25OHD3 and EHDP than with 25OHD3 alone. Treatment with 25OHD3 and EHDP seems more effective for the improvement of osteitis fibrosa than is 25OHD3 alone.

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