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The purpose of this study is to investigate whether secretion of incretin hormones is intact and to what extent endogenous as well as exogenous GLP-1 controls postprandial glucose excursions in patients with type-1 diabetes mellitus.
GLP-1 and GIP are incretin hormones secreted from specific endocrine celles in the gut. Stimulus for secretion is prescence of carbohydrates, fat and protein in the gut. The incretin hormones controls postprandial glucose excursions through stimulation of insulinsecretion as well as inhibition of glucagon and gastric emptying.The effects of GLP-1 on insulin secretion and glucagon inhibition are glucose dependent and the risc of hypoglycemia is therefore negligible when the hormone is administered in supra physiological concentrations.Furthermore, some animal studies suggest that GLP-1 has a trofic effect on the betacells and the hormone has been shown to replenish intracellular stores of insulin. Because the main bloodglucose lowering effect of GLP-1 has been thought to be due to increased insulin secretion, analouges of the hormone has been developed for the treatment of type-2 diabetes. So far, relatively little is known about the effect of GLP-1 in type-1 diabetes.It possible, that GLP-1 in combination with insulin (possibly mainly through its effect on glucagon inhibition and gastric emptying) could reduce the need for exogenous insulin with a concomitant reduced risc of hypoglycemia. Without compromising the target glucemic control. This study focuses of the postprandial bloodglucose lowering effects of endogenous as well as exogenous GLP-1 in patients with type-1 diabetes according to residual betacell function and glycemic control.Furthermore, the endogenous secretion of incretin hormones in patients with type-1 diabetes mellitus will be compared to that of matched normal controls.
Type 1 Diabetes
Hvidovre University Hospital
Hvidovre University Hospital
Published on BioPortfolio: 2014-08-27T03:24:45-0400
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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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