Abstract
Background: Increased fracture risk is seen in T2DM despite higher bone mineral density (BMD) due to poor bone microarchitecture. Recent studies suggest bone health may be affected early in the natural history of diabetes and women with prior gestational diabetes mellitus (GDM) would be ideal population to study this as precise information on glycemic status in the near past is available.Objective: The aim of this cross-sectional study was to comprehensively assess bone health in women with prior gestational diabetes mellitus, including bone microarchitecture (TBS), bone mineral density (BMD) and bone turnover (osteocalcin).Results: A total of 240 women (mean age: 33.3 ± 5.0 years; median postpartum duration: 34 [interquartile range 13.0-54.5] months were evaluated. At the current visit, 115 (47.9%) and 36 (15%) women had prediabetes and diabetes, respectively. Women with dysglycemia (diabetes/prediabetes) had a higher BMD at all three sites, compared to those with normoglycemia; however, the difference was not statistically significant. Women with dysglycemia had a significantly lower TBS (1.32 ± 0.09 vs. 1.35 ± 0.09; p = .038). Women with dysglycemia had significantly lower serum osteocalcin levels (18.6 ± 8.5 ng/ml vs. 21.5 ± 9.7 ng/ml; p = .018). HOMA-IR (r = -.285, p < .001) was negatively correlated, while Matsuda index (r = .274, p < .001) and disposition index (r = .159, p = .016) were positively correlated with serum osteocalcin levels.Conclusions: Bone health is affected early in the natural history of diabetes and is associated with an overall low bone turnover state.
Published Version
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