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Modeled insulin sensitivity and interstitial insulin action from a pilot study of dynamic insulin sensitivity tests

机译:动态胰岛素敏感性试验试验研究的模拟胰岛素敏感性和间质胰岛素作用

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An accurate test for insulin resistance can delay or prevent the development of Type 2 diabetes and its complications. The current gold standard test, CLAMP, is too labor intensive to be used in general practice. A recently developed dynamic insulin sensitivity test, DIST, uses a glucose-insulin-C-peptide model to calculate model-based insulin sensitivity, SI. Preliminary results show good correlation to CLAMP. However both CLAMP and DIST ignore saturation in insulin-mediated glucose removal. This study uses the data from 17 patients who underwent multiple DISTs to investigate interstitial insulin action and its influence on modeled insulin sensitivity. The critical parameters influencing interstitial insulin action are saturation in insulin receptor binding, αG, and plasma-interstitial diffusion rate, nI. Very low values of αG and very low values of nI produced the most intra-patient variability in SI. Repeatability in SI is enhanced with modeled insulin receptor saturation. Future parameter study on subjects with varying degree of insulin resistance may provide a better understanding of different contributing factors of insulin resistance.
机译:对胰岛素抵抗的准确测试可以延迟或预防2型糖尿病的发育及其并发症。目前的黄金标准试验夹具太劳动密集用于一般实践。最近开发的动态胰岛素敏感性试验,使用葡萄糖 - 胰岛素-C肽模型来计算基于模型的胰岛素敏感性,S I 。初步结果显示与夹具良好的相关性。然而,在胰岛素介导的葡萄糖去除中,夹具和Dist忽略饱和度。本研究利用来自17名患者的数据,接受多个DEST的患者来调查间质胰岛素作用及其对模拟胰岛素敏感性的影响。影响间质胰岛素作用的关键参数是胰岛素受体结合,α g 和等离子体间隙扩散速率,N I 饱和。 N I 在S I 中产生的患者内部内变异性非常低的α g 和非常低的值。 S I 中的可重复性增强,具有模拟的胰岛素受体饱和度。对具有不同胰岛素抵抗程度的受试者的未来参数研究可以更好地理解胰岛素抵抗的不同贡献因素。

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