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The Role of Amylin and Incretins on Postprandial Metabolisms in Adolescents With Type 2 Diabetes Mellitus (T2DM).

2014-07-23 21:35:35 | BioPortfolio

Summary

To study postprandial metabolism in lean, obese and T2DM adolescents using a mixed meal challenge. Specifically we will be measuring the following parameters of postprandial metabolism: 1. Postprandial glucose and triglycerides excursions 2. Gastric emptying 3. Insulin, amylin, glucagon, GLP-1 and ghrelin secretion 4. Glucose Turnover rate

Description

Previously type 2 diabetes mellitus (T2DM) was considered a disease of the adult; however, the incidence of T2DM in children is on the rise. Consequently, complications may occur at an earlier age, underscoring the importance of improving glycemic control in the pediatric population. Postprandial hyperglycemia contributes significantly to poor glycemic control in T2DM. We now understand that in addition to insulin other hormones (glucagon, amylin and GLP-1) may play a role in the postprandial glucose metabolism. The role of gastric emptying has been increasingly recognized as an important factor in regulating glucose appearance into the circulation. Abnormalities in the pancreatic hormone amylin and the incretin GLP-1 have emerged as contributors to the alterations in gastric emptying and postprandial hyperglycemia in T2DM. Although much is know about the abnormalities related to postprandial hyperglycemia in adults with T2DM, little information is available in the pediatric population. This protocol will examine gastric emptying, glucagon, GLP-1 and amylin secretions in healthy lean, obese children with and without diabetes post-ingestion of a mixed meal. The subject will be age and Tanner stage matched. The goal of this project is to better understand the metabolic adaptations of postprandial glucose homeostasis in T2DM by comparing our study group to obese (normal glucose tolerance) and healthy (lean) controls. The long-term goal for the PI is to use the data gathered with this protocol to develop a K-23 proposal incorporating new therapeutic options through the use of amylin and GLP-1 analogs in children with T2DM to improve postprandial hyperglycemia.

Study Design

Allocation: Random Sample, Observational Model: Natural History, Time Perspective: Cross-Sectional, Time Perspective: Prospective

Conditions

Type 2 Diabetes

Location

Baylor College of Medicine
Houston
Texas
United States
77030

Status

Recruiting

Source

Baylor College of Medicine

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:35:35-0400

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The time period before the development of symptomatic diabetes. For example, certain risk factors can be observed in subjects who subsequently develop INSULIN RESISTANCE as in type 2 diabetes (DIABETES MELLITUS, TYPE 2).

A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.

A severe type of hyperlipidemia, sometimes familial, that it is characterized by the elevation of both plasma CHYLOMICRONS and TRIGLYCERIDES contained in VERY-LOW-DENSITY LIPOPROTEINS. Type V hyperlipoproteinemia is often associated with DIABETES MELLITUS and is not caused by reduced LIPOPROTEIN LIPASE activity as in HYPERLIPOPROTEINEMIA TYPE I .

Urination of a large volume of urine with an increase in urinary frequency, commonly seen in diabetes (DIABETES MELLITUS; DIABETES INSIPIDUS).

A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.

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