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The amyloid beta (Ab) protein is implicated in Alzheimer’s Disease through its ability to impair brain metabolism. We have recently found that Ab can also impair metabolism in other tissues. This project will determine the role of Ab in regulating whole body metabolism and determine whether it is implicated in the development of metabolic diseases such as 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.
Transcription-based Identification Of Insulin Resistance Subtypes
Funder
National Health and Medical Research Council
Funding Amount
$341,883.00
Summary
A key feature of type 2 diabetes is the failure of metabolic tissues such as muscle and fat to respond to normal levels of insulin. This 'insulin resistance' is caused by a number of mechanisms. We will use cutting-edge technology to identify small sets of genes that define each variety of insulin resistance. These gene sets will be used to diagnose sub-types of insulin resistance and will facilitate the development of personalised therapies to effectively treat individuals with type 2 diabetes.
In patients predisposed to metabolic diseases, excessive fats get delivered to various tissues. About 10 to 15% are converted into sphingolipids, many of which have deleterious effects on tissue function. Blocking sphingolipid production prevents diabetes and most cardiovascular diseases in rodents. We seek to better understand these mechanisms and determine how the observations can be translated into new therapies and better clinical outcomes.
Insulin Resistance In Polycystic Ovary Syndrome And The Role Of Skeletal Muscle And Adipose Tissue
Funder
National Health and Medical Research Council
Funding Amount
$416,115.00
Summary
11% of women have polycystic ovarian syndrome(PCOS), characterised by insulin resistance, irregular periods and infertility. These women are prone to obesity, diabetes and potentially, heart disease. Treatments include lifestyle modifications +-- medical therapy. Lifestyle is first line, yet the best diet-exercise prescription is unclear. This study will provide insights into the cause of PCOS, will inform on the role of exercise in therapy and may identify targets for future therapies.
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.