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The Role Fructose-1,6-bisphosphatase On The Regulation Of Hepatic Gluconeogenesis
Funder
National Health and Medical Research Council
Funding Amount
$212,485.00
Summary
Type 2 or adult onset diabetes is a disease characterised by high blood sugar that causes damage to the kidneys, eyes and to the circulation and many patients die from heart attack or stroke. There is an increase in the prevalence of diabetes in Australia and a substantial portion of the health budget is utilised by caring for people with diabetes. Determining what exactly causes the increase in blood sugar levels is critical in the treatment of the disease. It is known that the sugar produced a ....Type 2 or adult onset diabetes is a disease characterised by high blood sugar that causes damage to the kidneys, eyes and to the circulation and many patients die from heart attack or stroke. There is an increase in the prevalence of diabetes in Australia and a substantial portion of the health budget is utilised by caring for people with diabetes. Determining what exactly causes the increase in blood sugar levels is critical in the treatment of the disease. It is known that the sugar produced and released by the liver is an important contributor to the high blood sugar levels found in patients with diabetes. The main biochemical pathway responsible for this is called gluconeogenesis, a complex arrangement of enzymes, which convert amino acids and fat into sugar. Although it is known that this pathway is overactive in patients with diabetes, the exact reason for this is not clearly understood. The aim of this proposal is to produce a transgenic mouse that has an increase in liver sugar production as a result of an increase in gluconeogenesis, and to study its effects on blood sugar levels. Furthermore, studies will be performed to understand the regulation of this pathway by infusing the transgenic mice with insulin, the hormone that inhibits gluconeogenesis. The mechanism of action of insulin will be determined by the measurement of key enzymes that regulate gluconeogenesis. The significance of this grant is to identify possible sites for the development of new drugs or gene therapy that will lead to a decrease in the production of sugar by the liver. This will lead to better control of blood sugar levels and slow down or even prevent the onset of diabetes complications.Read moreRead less
Understanding The Cause And Consequence Of Impaired Insulin Secretion In The NZO Mouse A Model Of Diabetes.
Funder
National Health and Medical Research Council
Funding Amount
$711,224.00
Summary
Type 2 diabetes is a major health problem affeting over 1 million Australians. A key feature of this disease is reduced secretion of the pancreratic hormone insulin which results in high blood sugar levels. We are using a naturally occurring animal model of diates called the NZO mouse to understand why the pancreas secretes less insulin and the consequences of this defect. This project has the potential of providing better therapeutic strategies for patients with Type 2 diabetes.
Molecular Characterisation Of Adiponectin Receptors: Implications For Adiponectin Action And Resistance
Funder
National Health and Medical Research Council
Funding Amount
$95,137.00
Summary
Adiponectin is a hormone secreted by fat cells with anti-inflammatory, anti-atherogenic and insulin sensitising properties. Adiponectin levels and actions are compromised in obesity and type 2 diabetes. Adponectin mediates its effects via two receptors but the mechanisms are poorly understood. This proposal aims to define the underlying mechanisms with the ultimate goal of identifying novel therapeutic strategies to improve adiponectin's actions.
The Role Of Muscle Fatty Acid Oxidation In Regulating Intramyocellular Lipid Accumulation.
Funder
National Health and Medical Research Council
Funding Amount
$169,695.00
Summary
Obesity and the subsequent accumulation of fat in muscle leads to reduced insulin action and an increased risk of type 2 diabetes. This project will investigate the metabolic processes that influence fat accumulation and oxidation primarily in skeletal muscle, the tissue responsible for most fuel utilization in the body. This information will help design therapeutic strategies to prevent the development of type 2 diabetes.