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Menopause. 2012 Feb;19(2):172-7. doi: 10.1097/gme.0b013e31822815c0.

Adiponectin and leptin serum levels in osteoporotic postmenopausal women treated with raloxifene or alendronate.

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Endocrinology Division, Hospital Universitario San Cecilio, Granada, Spain.



Clinical studies evaluating the role of leptin and adiponectin on bone metabolism had shown conflicting results, and data about the effect of anticatabolic drugs on these adipokines are scarce. Our aims were to determine adiponectin and leptin levels in osteoporotic postmenopausal women and their relationship with bone mass and bone turnover and to analyze changes on adiponectin and leptin levels after treatment with raloxifene or alendronate.


We selected 53 women (mean ± SD age, 63 ± 7 y) with postmenopausal osteoporosis divided into two treatment groups: raloxifene (60 mg/d; n = 20) or alendronate (70 mg/wk; n = 33) during a period of 1 year. Bone mineral density by dual-energy x-ray absorptiometry and serum levels of leptin, adiponectin, and bone turnovers markers were determined at baseline and at 1 year after treatment.


Baseline levels of leptin were correlated to body mass index (r = 0.47; P < 0.01), waist circumference (r = 0.38, P = 0.01), and estradiol (r = 0.4, P = 0.003). Adiponectin was inversely related to bone-specific alkaline phosphatase (r = -0.41, P < 0.01) and serum crosslaps (r = -0.35; P < 0.01). There was no correlation between bone mineral density, leptin, and adiponectin. After 12 months, no changes were observed in leptin and adiponectin in the alendronate group; however, a significant increase in leptin levels (973.5 ± 637.4 pM/mL vs 1,305.7 ± 793.5 pM/mL; P = 0.031) was detected in the raloxifene group, whereas adiponectin levels showed no significant changes (P = 0.46).


In postmenopausal women with osteoporosis, raloxifene induces a significant increase in leptin levels without significant changes in adiponectin serum levels. The antiresorptive effect of raloxifene and alendronate is not substantially influenced by changes in leptin or adiponectin levels.

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