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  • Title: [Changes of bone density and insulin-like growth factor-1 level in elders with type 2 diabetes mellitus].
    Author: Zeng SF, Wu Y, Wang Y, Yang GY, Li RZ, Zhu XR, Tan XR, Li Y.
    Journal: Sichuan Da Xue Xue Bao Yi Xue Ban; 2007 Sep; 38(5):832-5. PubMed ID: 17953371.
    Abstract:
    OBJECTIVE: To investigate the changes of bone mineral density(BMD) and the relationship of BMD to serum Insulin-like growth factor-1 concentrations, body mass index (BMI), waist hip ratio (WHR), estradiol (E2), testosterone (T), biochemical markers of bone turnover as well as other factors in the elderly individuals with Type 2 diabetes mellitus (T2DM). METHODS: BMDs of spine were measured by quantitative CT for patients with T2DM (n=53) and health controls (n=40). The relationships of BMD related to serum Insulin-like growth factor-1 concentrations, BMI, WHR, E2, T, bone Gla'protein, bone alkaline phosphatase, tartrate resistant acid phosphatase 5b levels were also analyzed. RESULTS: The spine BMD values for the T2DM patients were significantly reduced when compared with controls [(74.75 +/- 22.70) mg/cc vs. (88.04 +/- 28.29) mg/cc, P < 0.05], and the concentration of serum Insulin-like growth factor-1 in T2DM group was significantly lower than that in control [(27.63 +/- 5.74) ng/mL vs. (32.51 +/- 9.68) ng/mL, P < 0.05]. The level of serum Insulin-like growth factor-1 was positive correlation to bone-specific alkaline phosphatase (B-ALP) in the T2DM patients (r = 0.46, P < 0.01). CONCLUSION: The spine BMD in elderly T2DM patients is lower than that in control group. The circulating serum Insulin-like growth factor-1 does not have a significant influence on bone mass in elderly T2DM patients.
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