Daily and cyclic parathyroid hormone in women receiving alendronate
Daily and cyclic parathyroid hormone in women receiving alendronate
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DOI:
10.1056/nejmoa050157
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发表时间:
2005-08-11
影响因子:
158.5
通讯作者:
Lindsay, R
中科院分区:
文献类型:
--
作者:
Cosman, F;Nieves, J;Lindsay, R
BACKGROUND:We evaluated whether patients with osteoporosis treated with long-term alendronate have a response to parathyroid hormone treatment and whether short, three-month cycles of parathyroid hormone therapy could be as effective as daily administration.METHODS:We randomly assigned 126 women with osteoporosis who had been taking alendronate for at least 1 year to continued alendronate plus parathyroid hormone (1-34) subcutaneously daily, continued alendronate plus parathyroid hormone (1-34) subcutaneously daily for three 3-month cycles alternating with 3-month periods without parathyroid hormone, or alendronate alone for 15 months.RESULTS:In both parathyroid hormone groups, bone formation indexes rose swiftly. Among the women who were receiving cyclic parathyroid hormone, bone formation declined during cycles without parathyroid hormone and increased again during cycles with parathyroid hormone. Bone resorption increased in both parathyroid hormone groups but increased progressively more in the daily-treatment group than in the cyclic-therapy group. Spinal bone mineral density rose 6.1 percent in the daily-treatment group and 5.4 percent in the cyclic-therapy group (P