Abstract

Aim to assess the prevalence of low muscle mass and low bone density in elderly patients with type 2 diabetes (T2DM), depending on the level of glycated hemoglobin (HbA1c).
 Material and methods.The study included 187 patients (mean age 65.16 4.31 years), who were tested for fasting blood glucose, HbA1c, osteocalcin (OC), procollagen type 1 N-terminal propeptide (P1NP), C-terminal type I collagen telopeptides (B-CTX), 25-hydroxyvitamin D, body composition and bone mineral density.
 Results.The prevalence of low muscle mass, osteopenia, and osteoporosis in elderly patients with T2DM was 35.8%, 38.5%, and 30.5%, respectively. The prevalence of low muscle mass was significantly higher in women with HbA1c 9.0% (p =0.035). Osteopenia and osteoporosis prevailed in men with HbA1c 9.0% (p=0.007 and p=0.048, respectively). The appendicular skeletal muscle index (ASMI), bone mineral content (BMC) and bone mineral density (BMD) of the lumbar spine, BMC and BMD of the thigh were significantly reduced in the osteoporosis and osteopenia groups (p0.05); while B-CTX, P1NP were significantly increased. In men, both ASMI (p=0.007) and P1NP levels (p=0.001) were important risk factors for osteopenia/osteoporosis, and in women such risk factor was ASMI (p=0.019).
 Conclusion.In T2DM patients, the high HbA1c levels were associated with higher rates of low muscle mass in women and osteoporosis in men, and ASMI was a risk factor for osteoporosis in both sexes.

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