Influence of bone mineral density in circulating adipokines among postmenopausal Arab women

الملخص EN

Osteoporosis and osteopenia has a significant link with substantial fracture risk.

Epidemiological data revealed a protective role of adipose tissue on bone biology in postmenopausal osteoporosis.

The current study assessed the associations between select adipokines and bone mineral density (BMD) in postmenopausal women.

A total of 175 Saudi postmenopausal women were selected and categorized based on their BMD (normal & low-BMD).

Circulating levels of select adipokines (adiponectin, resistin, leptin, and adipsin), insulin, 25(OH)D and RANKl were determined using commercially available assay kits.

BMD was measured by dual-energy X-ray absorptiometry (DXA).

Overall and among low-BMD subjects, adiponectin consistently showed a significant inverse association with BMD (overall −0.34, p < 0.01; low BMD group −0.34, p < 0.01).

In multiple regression, adiponectin (−0.29 ± 0.06, p < 0.00) and resistin (−0.08 ± 0.04, p < 0.05) were inversely significant with BMD overall, but after stratification the significance was lost for resistin (−0.05 ± 0.04, p < 0.224) whereas adiponectin remained (−0.22 ± 0.07, p < 0.02) in low-BMD subjects.

Adipsin, leptin and lipocalin-2 showed no significant associations.

Findings of the present study revealed that only adiponectin showed a significantly strong inverse association with low BMD, suggesting that insulin sensitivity may influence bone health in Arab postmenopausal women.