Upper gastrointestinal motility and glycaemic control in diabetes mellitus [ 2007 - 2009 ]

Research Grant

Researchers: Prof Michael Horowitz (Principal investigator) ,  Melvin Samsom ,  Prof Andr Smout ,  Prof Christine Feinle-Bisset ,  Prof Christopher Rayner
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Brief description The application of novel techniques to evaluate gastrointestinal motor function has established that the rate at which the stomach empties is abnormally slow in ~50% of people who have insulin-dependent (type 1) or non-insulin dependent (type 2) diabetes. Delayed stomach emptying, which was thought to be an infrequent complication of diabetes, may contribute to a number of problems including symptoms such as nausea and bloating, and poor control of blood glucose concentrations. The blood glucose level itself also has a reversible effect on both stomach contractions and symptoms; when the blood glucose is abnormally high, the rate at which the stomach empties is slower, and symptoms, such as fullness, are greater. The rate of stomach emptying and the absorption of sugar from the intestine have a major influence on the rise in the blood glucose level after a meal. This is important because in people with diabetes it is desirable to maintain blood glucose levels as close as possible to normal to minimise the risk of complications such as eye and nerve damage. Specific modifications in diet and recently developed drugs which have actions similar to that of the hormone, glucagon-like peptide-1, may improve blood glucose control in type 2 diabetes by slowing the rate of gastric emptying. People with cystic fibrosis frequently develop diabetes which is often difficult to manage; this may result from abnormally rapid gastric emptying and impaired release of hormones. If so, pancreatic enzyme replacement, in the form of tablets, should prove effective. Our group has conducted research in this area for about 24 years and have performed the most comprehensive studies to date resulting in international recognition. The studies proposed in the current application represent a logical development from our previous work and have important implications for the management of diabetes.

Funding Amount $AUD 543,301.76

Funding Scheme NHMRC Project Grants

Notes Standard Project Grant