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    Effect of Strontium Ranelate on Serum Leptin and Bone Turnover Markers in Women with Established Postmenopausal Osteoporosis
    (SCI PRINTERS & PUBL INC, 2013) Bayhan, Ilhan; Dogan, Nasuh U.; Ozaksit, Gulnur; Uygur, Dilek; Ugurlu, Nil; Ugur, Mustafa
    OBJECTIVE: To assess the ass. ociation between leptin levels and bone mineral density (BMD) and bone metabolism markers in postmenopausal women taking strontium ranelate. STUDY DESIGN: In this longitudinal uncontrolled study, postmenopausal osteoporotic women were administered strontium ranelate and categorized into 1 of 2 groups: overweight and lean. BMD, serum leptin, bone -specific alkaline phosphatase (ALP) and urinary deoxypyridinoline (Dpd) were assessed at baseline, 6 and 12 months of the therapy. RESULTS: For all 47 women, leptin levels increased at the sixth month (p =0.001) and 1 year after treatment (p = 0.001), Dpd levels. decreased at the sixth month.(p = 0.001) and 1 year after treatment (p =0.003), but ALP levels did not change with respect to basal levels. Spine and hip BMD also increased at the end of 1 year (p =0.01 and p =0.001, respectively). For overweight women leptin levels increased 6 months and 1 year after treatment (p =0.003 and p =0.001, respectively). Dpd levels decreased significantly at the sixth month and at 1 year (p =0.001 and p = 0.041), but ALP levels did not change. Hip and spine BMD also increased (p =0.036 and p =0.002). The lean group had similar serum results and BMD scores after treatment. CONCLUSION: Our data supports a positive effect of leptin on bone metabolism in favor of bone resorption inhibition in postmenopausal osteoporotic women on strontium treatment.