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Year : 2019  |  Volume : 31  |  Issue : 1  |  Page : 52-56

Serum β-CrossLaps as a predictor for osteoporosis in postmenopausal women with early diabetic nephropathy

Assistant prof. of Internal Medicine, Faculty of Medicine, Mansoura University, Egypt

Correspondence Address:
Ashraf Mohamed
Assistant prof. of Internal Medicine, Faculty of Medicine, Mansoura University, Mansoura, Dakahlyiah
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ejim.ejim_53_18

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Background Osteoporosis is a progressive bone disease with an increased risk of fracture. Objective To estimate bone turnover through an early marker, β-CrossLaps (β-CTx), in postmenopausal women with type 2 diabetes mellitus (DM) and early diabetic nephropathy (DN). Patients and methods A case–control study comprised 80 Egyptian postmenopausal nonsmoker women: 26 women without DM (group 1) as a control group, 28 women had type 2 DM without DN (group 2), and 26 woman were type 2 DM with early DN (group 3). All demographic and clinical data were collected. Laboratory tests including serum calcium, phosphorus, alkaline phosphatase (ALP), bone ALP, β-CTx, glycated hemoglobin, microalbuminuria, serum creatinine, and blood sugar levels were estimated. Results Regarding bone minerals, there was a significant lower serum level of calcium and phosphorus in group 3 compared with groups 1 and 2 (P=0.029 and <0.0001, respectively). Groups 2 and 3 had significantly lower serum levels of total ALP (P=0.011 and 0.006, respectively) and bone ALP (with lowest level in group 3) (P<0.0001) compared with group 1. Groups 2 and 3 had significantly higher serum levels of β-CTx (with highest level in group 3) compared with group 1 (P=0.016 and 0.003, respectively). Dual-energy X-ray absorptiometry scan revealed a significant elevation in osteoporosis percent in group 3 (63.4%) in comparison with group 1 (26.9%) (P=0.001), whereas osteopenia percent was significantly higher in group 2 (P=0.004) compared with group 3. Conclusion In diabetic postmenopausal women, serum β-CTx and microalbuminuria are potentially useful tools for assessing bone resorption state.

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