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Short Term Effects Of Overfeeding On Metabolic Risk In Humans
Funder
National Health and Medical Research Council
Funding Amount
$380,558.00
Summary
Obesity is associated with increased risk of diabetes, heart disease and cancer. Obesity prevalence is rapidly increasing and consitutes one of the greatest threats to human health. The aim of this study is to determine mechanism-s underlying the close relationship between obesity and insulin resistance by inducing experimental weight gain in humans with and without a genetic predisposition to diabetes. This project will help identify new candidates for anti-diabetes drugs.
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 Assessment And Treatment Of Cardiovascular Risk Factors,diabetes And Insulin Resistance In Polycystic Ovary Syndrome
Funder
National Health and Medical Research Council
Funding Amount
$304,047.00
Summary
Cardiovascular disease (CVD) and Type II Diabetes Mellitus (T2DM) are major health burdens in Australia. T2DM is increased and CVD may be increased in polycystic ovary syndrome (PCOS), a condition present in 10% of women and 30% of obese reproductive aged women. We aim to explore risk factors for CVD and T2DM in women with PCOS and to assess the effect of treatment strategies on metabolic and reproductive features in PCOS. This is crucial for reducing disease risk in this common condition.
Role Of Impaired Insulin Signalling In Fatty Acid-induced Muscle Insulin Resistance In Vivo
Funder
National Health and Medical Research Council
Funding Amount
$481,500.00
Summary
Type 2 diabetes represents an escalating global health problem. In Australia 7.5% of the population has diabetes and another 16% insulin resistance (impaired action of insulin in tissues). As well as diabetes, insulin resistance is closely associated with obesity, dyslipidaemia, hypertension and cardiovascular diseases (Syndrome X). While genetic factors play a role, a high caloric intake (particularly with a high fat content) and a sedentary lifestyle are extremely important environmental contr ....Type 2 diabetes represents an escalating global health problem. In Australia 7.5% of the population has diabetes and another 16% insulin resistance (impaired action of insulin in tissues). As well as diabetes, insulin resistance is closely associated with obesity, dyslipidaemia, hypertension and cardiovascular diseases (Syndrome X). While genetic factors play a role, a high caloric intake (particularly with a high fat content) and a sedentary lifestyle are extremely important environmental contributors to Syndrome X and diabetes. From evidence that we and others have obtained over the last few years it is now evident that an important mediator of insulin resistance is the quantity of fat molecules which accumulate in muscle and liver. This project examines mechanisms whereby this fat accumulation can disrupt the signalling mechanism normally causing increased glucose metabolism in response to insulin. While basic experiments in cell systems have identified some candidates, a need exists to demonstrate whether they actually cause the insulin resistance in the whole animal or human, or are merely associated with it. We will combine metabolic-physiological studies with a novel technique we have recently established in our laboratory for introducing DNA into skeletal muscle of laboratory animal models. We now aim to exploit this approach to obtain more definitive data about the importance of insulin signalling changes to insulin resistance. Two major steps in insulin signalling will be investigated, involving the insulin receptor substrate proteins and the kinase Akt-PKB, both strongly implicated in lipid-induced insulin resistance. This knowledge will be invaluable in improving strategies to lessen or prevent lipid-associated insulin resistance, a major contributor to the metabolic derangement in Type 2 diabetes and Syndrome X.Read moreRead less
Adrenal Cushings:natural History And Genetic Analysis Of Inherited Forms, And Prevalence In High Risk Groups.
Funder
National Health and Medical Research Council
Funding Amount
$100,381.00
Summary
This study aims to diagnose early Cushing's in certain high risk groups - before debilitating complications have developed which increase mortality. Early treatment normalises life expectancy and improves quality of life. We aim to discover the genetic cause of inherited Cushing's. This will allow a genetic test to be developed - so gene carriers can be carefully followed for onset of symptoms of Cushing's and those who are not carriers can be reassured.
I am a scientist with a background in molecular and cellular pathology. My research relates to studies of animals models of diabetic kidney and heart disease focusing on the discovery of novel treatments.