JCEM:1型糖尿病女孩HbA1c升高与皮质和小梁微结构改变有关

2019-11-25 xing.T MedSci原创

由此可见,骨骼微结构在T1D疾病早期和较高的平均血糖个体有所改变。抑制的骨形成和较低的循环IGF-1可能会促进该改变。

近日,内分泌和代谢性疾病领域权威杂志Journal of Clinical Endocrinology & Metabolism上发表了一篇研究文章,该研究旨在评估T1D女孩与对照者之间的骨骼微结构差异,并评估与这些差异相关的因素。

该研究为横断面比较研究,研究对象为年龄10-16岁的女孩,其中62名T1D患者和61名对照者。

通过双能X线骨密度仪测量的骨矿物质密度(BMD)在T1D患者和无T1D的对照女孩之间没有差异。在胫骨远端骨小梁BMD在T1D患者降低7.3±2.9%(p=0.013),且板状小梁和轴向排列的小梁较少。T1D患者皮质孔隙率高出21.5±10.5%,而估计的骨折载荷降低4.7±2.2%(分别为p=0.043和p=0.037)。在桡骨远端,BMD和微结构在两组之间显示出相似的差异,但未达到统计学意义。按HbA1c进行分层后,只有T1D患者和HbA1c>8.5%的女孩与对照者显著不同。骨形成的标志物P1NP在T1D患者中较低,而骨吸收的标志物CTX、TRAcP5b和破骨细胞数没有差异。在T1D患者中,IGF-1 Z分数较低;并且在对IGF-1 Z分数进行调整后,T1D状态与小梁微结构之间的关联程度大大减弱。 

由此可见,骨骼微结构在T1D疾病早期和较高的平均血糖个体有所改变。抑制的骨形成和较低的循环IGF-1可能会促进该改变。 

原始出处:

Deborah M Mitchell,et al.Elevated HbA1c is associated with altered cortical and trabecular microarchitecture in girls with type 1 diabetes.J Clin Endocrinol Metab.2019.https://doi.org/10.1210/clinem/dgz221

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    2020-06-05 Smile2680
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    2020-08-27 smallant2015
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    2020-02-26 achengzhao
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    2019-11-25 misszhang

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