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首页> 外文期刊>The Journal of Clinical Pharmacology: Official Journal of the American College of Clinical Pharmacology >Semimechanistic Model Describing Gastric Emptying and Glucose Absorption in Healthy Subjects and Patients With Type 2 Diabetes
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Semimechanistic Model Describing Gastric Emptying and Glucose Absorption in Healthy Subjects and Patients With Type 2 Diabetes

机译:描述健康受试者和2型糖尿病患者胃排空和葡萄糖吸收的半力学模型

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摘要

The integrated glucose-insulin (IGI) model is a previously published semimechanistic model that describes plasma glucose and insulin concentrations after glucose challenges. The aim of this work was to use knowledge of physiology to improve the IGI model's description of glucose absorption and gastric emptying after tests with varying glucose doses. The developed model's performance was compared to empirical models. To develop our model, data from oral and intravenous glucose challenges in patients with type 2 diabetes and healthy control subjects were used together with present knowledge of small intestinal transit time, glucose inhibition of gastric emptying, and saturable absorption of glucose over the epithelium to improve the description of gastric emptying and glucose absorption in the IGI model. Duodenal glucose was found to inhibit gastric emptying. The performance of the saturable glucose absorption was superior to linear absorption regardless of the gastric emptying model applied. The semiphysiological model developed performed better than previously published empirical models and allows better understanding of the mechanisms underlying glucose absorption. In conclusion, our new model provides a better description and improves the understanding of dynamic glucose tests involving oral glucose.
机译:整合的葡萄糖-胰岛素(IGI)模型是先前发布的半力学模型,描述了葡萄糖激发后的血浆葡萄糖和胰岛素浓度。这项工作的目的是利用生理学知识来改进IGI模型在不同剂量的葡萄糖测试后对葡萄糖吸收和胃排空的描述。将开发模型的性能与经验模型进行比较。为了建立我们的模型,我们使用了来自2型糖尿病患者和健康对照组的口服和静脉内葡萄糖激发的数据,以及对小肠运输时间,胃排空葡萄糖的抑制以及上皮对葡萄糖的饱和吸收的当前知识,以改善IGI模型中胃排空和葡萄糖吸收的描述。发现十二指肠葡萄糖抑制胃排空。无论采用何种胃排空模型,饱和葡萄糖吸收的性能均优于线性吸收。开发的半生理学模型比以前发表的经验模型表现更好,并且可以更好地了解葡萄糖吸收的机制。总之,我们的新模型提供了更好的描述,并增进了对涉及口服葡萄糖的动态葡萄糖测试的理解。

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