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绝经后妇女骨关节炎和骨质疏松者骨代谢的区别

Differential bone metabolism between postmenopausal women with osteoarthritis and osteoporosis
Jiang L.-S., Zhang Z.-M., Jiang S.-D., Chen W.-H., Dai L.-Y.   |   2009/5/29 18:38:57 
Journal of Bone and Mineral Research, 2008   |   Volume 23, Issue 4  |   打印| 推荐给好友
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A comparative study of bone metabolism between postmenopausal women with osteoarthritis and osteoporosis showed that differential levels of bone remodeling markers, leptin, free leptin index, and osteoprotegerin might partly contribute to the proposed inverse relationship in bone mass between postmenopausal women with osteoarthritis and osteoporosis. Introduction: Osteoarthritis (OA) and osteoporosis (OP) are two common disorders affecting the quality of life in the elderly. The association between OA and OP has always been debated. The objective of this study was to compare bone metabolism between postmenopausal women with OA and OP. Materials and Methods: A total of 120 postmenopausal women with OA and OP (n = 60, respectively) were included in this comparative study. Anthropometric parameters and BMD at the spine and the proximal femur were measured. Serum leptin, soluble leptin receptor (sLR), osteoprotegerin (OPG), and bone remodeling markers, including bone-specific alkaline phosphatase (BALP), osteocalcin (OC), deoxypyridinoline crosslinks (DPD), and cross-linked N-telopeptides of type I collagen (NTX), were quantified with commercial ELISA or EIA kits. Free leptin index (FLI) was also calculated by the ratio between serum leptin and sLR levels. Results: Postmenopausal women with OA had higher body weight, body mass index, fat mass, and percentage of fat than those suffered from OP. Compared with the patients in OP group, the patients in OA group had significantly higher BMD values at all sites measured. Higher serum leptin and FLI and lower OPG levels were shown in the OA group (leptin: 31.22 ± 6.4 versus 26.50 ± 9.27 ng/ml, p < 0.001; FLI: 3.20 ± 1.02 versus 2.50 ± 0.95, p < 0.05; OPG: 4.75 ± 1.97 versus 6.96 ± 2.75 pM, p < 0.001), whereas lower serum OC and higher urine DPD were noted in the OP group (OC: 16.45 ± 8.45 versus 13.06 ± 6.25 ng/ml, p < 0.05; DPD: 10.83 ± 7.12 versus 15.29 ± 6.65 nM BCE/mM Cr, p < 0.001). Serum OPG levels negatively correlated with BMD at all sites assessed. However, no correlation was found between leptin and BMD. Only in the OA group di positive correlations exist between FLI and Z-score at the femoral neck and Ward's triangle region. After stepwise regression analysis, it was found that differential factors were able to predict the variance of BMD at different sites to a certain extent. Conclusions: Our study suggests that there are significant differences in bone metabolism between postmenopausal women with OA and OP and provides evidence for the inverse relationship between OA and OP. Differential levels of bone remodeling markers, leptin, FLI, and OPG may partly contribute to the proposed inverse relationship. Roles of leptin and its soluble receptor in bone metabolism regulation should be explored further. © 2008 American Society for Bone and Mineral Research.
Correspondence Address: Dai, L.-Y.; Department of Orthopaedic Surgery, Xinhua Hospital, 1665 Kongjiang Road, Shanghai 200092, China; email: chinaspine@163.com 
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慢性心衰诊治：规范中求突破
黄峻
2012-2-1
南京医科大学第一附属医院
房颤治疗：手段渐趋丰富 新型治疗药物不断涌现 非药物治疗备受关注
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2012-2-1
首都医科大学附属北京安贞医院
注重老年人群特征 优化管理

刘梅林
2012-2-1
北京大学第一医院老年内科

 
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