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  • Title: [Alendronate prevents steroid-induced osteoporosis in patients with rheumatic diseases].
    Author: Wang QH, Wu HX, Huang YL, Xue J, Yang XY, Zhu L, Wen LH.
    Journal: Zhonghua Yi Xue Za Zhi; 2008 Jul 15; 88(27):1888-91. PubMed ID: 19040000.
    Abstract:
    OBJECTIVE: To investigate the effects of alendronate (Alen) on the prevention of systemic glucocorticoid-induced osteoporosis in patients with rheumatic diseases. METHODS: 140 patients suffering from rheumatic diseases, including systemic lupus erythematosus, polymyositis, dermatomyositis, and Sjögren's syndrome, with normal bone mineral density (BMD) and treated with oral glucocorticoids were randomly divided into 2 groups: Alen + calcium group (n = 74) receiving Alen 10 mg once a day and castrate D 600 0.6 g once a day for 24 weeks and control group (n = 66) receiving castrate D 600 0.6 g once a day for 24 weeks. The BMD and biomarkers of bone turnover were measured at baseline and 24 weeks after initiating glucocorticoid therapy. RESULTS: After 24 weeks, the BMD values at lumbar spine, femoral neck, major trochanter, and Ward' s triangle increased by 6.1%, 6.3%, 3.3%, and 2.2% respectively compared with those at baseline (all P<0.05), however, those of the control group decreased by 8.7%, 9.1%, 7.7%, and 6.4% respectively (P<0.01, P<0.05), and the BMD levels at lumbar spine and femoral neck 24 weeks later of the Alen + calcium group were both higher than those of the control group (P<0.01, P<0.05). 24 weeks later the level of urine cross linked N-telopeptides of type I collagen (NTX) of the Alen + calcium group decreased (P<0.05), and the blood osteocalcin (BGP) of the Alen + calcium group increased, however, not significantly (P>0.05). There were no significant differences in serum AKP and BGP and urine NTX 24 weeks later between these 2 groups. CONCLUSION: Improving BMD, alendronate plays an important role in the prevention of glucocorticoid-induced osteoporosis. However, calcium treatment alone fails to prevent the loss of bone.
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