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Understanding Sphingolipid Mediators Of Insulin Resistance
Funder
National Health and Medical Research Council
Funding Amount
$643,447.00
Summary
Sphingolipids are a class of lipid metabolites that have a variety of functions within cells. It has been known for some time that an accumulation of excess lipid, including certain sphingolipids, can adversely impact insulin action and glucose metabolism in cells. In this project we will a combination of strategies to test the hypothesis that the sphingolipid profile can be manipulated to have favourable effects on metabolism.
The Differential Innervation Of Fat - Potential To Target Visceral Adiposity
Funder
National Health and Medical Research Council
Funding Amount
$486,818.00
Summary
Levels of abdominal fat are closely correlated with metabolic syndrome. We propose experiments to identify unique characteristics (neurotransmitters or receptors) of neurons deep in the brain that project specifically to this type of fat or other less harmful subcutaneous fat. We can then test the functional significance of these unique elements in animal experimets involving gene knockdown or pharmacological approaches to modify their function and test the effect on fat distribution
Novel Metabolic Actions Of HDL With Potential Therapeutic Implications For Type 2 Diabetes And The Metabolic Syndrome.
Funder
National Health and Medical Research Council
Funding Amount
$349,683.00
Summary
There are currently in excess of 170 million patients diagnosed with type 2 (late onset) diabetes in the world and this figure is expected to double by 2030. Almost one in four Australians 25 years and over has either diabetes or a condition of impaired glucose metabolism. These conditions pose significant problems in terms of both individual suffering and economic burden. Poor diet, sedentary lifestyles with resultant weight gain and increased obesity rates underlie the escalating prevalence of ....There are currently in excess of 170 million patients diagnosed with type 2 (late onset) diabetes in the world and this figure is expected to double by 2030. Almost one in four Australians 25 years and over has either diabetes or a condition of impaired glucose metabolism. These conditions pose significant problems in terms of both individual suffering and economic burden. Poor diet, sedentary lifestyles with resultant weight gain and increased obesity rates underlie the escalating prevalence of type 2 diabetes. Our proposal investigates a novel approach to treat these conditions. We have identified an important link between HDL (good) cholesterol and glucose and fat metabolism in human muscle cells. We have shown that HDL increases glucose uptake into muscle cells. This process would be expected to remove glucose from blood vessels where it causes damage which ultimately contributes to heart attack and stroke. Furthermore, we have shown that HDL increases the amount of fat the body uses. HDL may therefore not only remove damaging fat from blood vessels, but also help to reduce body weight. Our study seeks to determine the relevance of these mechanisms in both healthy individuals and patients with type 2 diabetes. At the conclusion of this grant we expect to understand whether HDL raising strategies may be a an effective new therapy for type 2 diabetes. Specifically, we will understand: 1. how HDL exerts its beneficial effects and 2. whether acute and chronic HDL elevation using drugs improves glucose and fat metabolism in humans.Read moreRead less
Unravelling The Mechanisms By Which Insulin Hypersecretion Is Detrimental To ß-cell Function And Survival In Type 2 Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$727,758.00
Summary
Type 2 diabetes is associated with reduced levels of the hormone insulin that results in an increase in blood sugar. Evidence suggests that when the cells that make insulin are overworked they fail to produce the right amount of this hormone to keep blood sugar levels normal. In this proposal we will determine how overworking the insulin producing cells damages them and assess whether reducing the need to overwork is beneficial and thus lead to reduced blood sugar levels in Type 2 diabetes.
Novel Metabolic Actions Of HDL With Therapeutic Potential For Type 2 Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$559,471.00
Summary
Our proposal investigates a novel approach to treat type 2 (late onset) diabetes. We have identified an important link between HDL (good) cholesterol and glucose metabolism. The current proposal is to conduct studies in humans to determine whether therapies which increase HDL result in sustained reduction of blood glucose. Given the escalating global prevalence of obesity and type 2 diabetes, this work is potentially of great significance.