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Body composition is associated with bone and glucose metabolism in postmenopausal women with type 2 diabetes mellitus.

Body composition is associated with bone and glucose metabolism in postmenopausal women with type 2 diabetes mellitus.
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Raška I, Rašková M, Zikán V, Škrha J,


Raška I, Rašková M, Zikán V, Škrha J, (click to view)

Raška I, Rašková M, Zikán V, Škrha J,

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Physiological research 2016 Oct 26()
Abstract

Type 2 diabetes mellitus (T2DM) is associated with increased fracture risk; the underlying mechanism remains unexplained. This study aimed to investigate the relationships between body composition and bone and glucose metabolism in postmenopausal women with T2DM. Dual-energy X-ray absorptiometry was used to measure bone mineral density (BMD) and body composition. A total of 68 postmenopausal women with T2DM and 71 controls were eligible for the study. In contrast to normal BMD in T2DM, a similar prevalence of low-trauma fractures was observed in both groups. T2DM women had significantly higher Trunk fat% and A/G ratio and significantly lower Legs LM% and Legs FM%. Legs LM% was significantly lower in fractured T2DM group and negatively correlated with glycaemia and HbA1c (p<0.01). Serum osteocalcin was significantly lower in T2DM and inversely correlated with FM%, Trunk FM% and A/G ratio (p<0.01) and positively correlated with Legs FM% and total LM% (p<0.05). In conclusion, abdominal obesity and decrease in muscle mass may contribute to low bone formation in T2DM women. Further research is needed to unravel underlying pathophysiological mechanisms and to determine whether maintenance of muscle mass, especially in the lower extremities and/or reduction of central fat mass can prevent fractures.

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