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Interrogation Of Two Novel Genetic Susceptibility Loci For Multiple Sclerosis
Funder
National Health and Medical Research Council
Funding Amount
$840,615.00
Summary
This proposal, from the Australia and New Zealand multiple sclerosis (MS) Genetics Consortium, aims to interrogate two new genes that it recently identified as predisposing for the development of MS. Both of the genes underlying these findings are also associated with risk of developing other autoimmune diseases such as type 1 diabetes, rheumatoid arthritis and Graves' disease.
Climate Change And Rural Communities: Integrated Study Of Physical And Social Impacts, Health Risks And Adaptive Options
Funder
National Health and Medical Research Council
Funding Amount
$611,599.00
Summary
Rural Australia has begun to experience climate change impacts - which will increase in future. Losses in farm yields, water supplies, property, community morale and family incomes have diverse health effects. We will study the separate and joint effects of climate change and associated extreme events (e.g., bushfires) on selected health outcomes. Using integrative methods, we will clarify the main influences on health risks, their future projections, and how best to intervene to lessen risks.
Molecular Determinants Of UDP Glucuronosyltransferase Expression In The Gastrointestinal Tract
Funder
National Health and Medical Research Council
Funding Amount
$447,750.00
Summary
The gastrointestinal tract is a major portal of entry for dietary chemicals and drugs taken orally or as suppositories. Enzymes resident in the gastrointestinal tract have an essential role in preventing these chemicals from reaching other organs and target tissues in the body and in protecting the gastrointestinal tract per se from their effects. The levels of these enzymes in the gastrointestinal tract varies quite extensively between individuals. In this project we will determine how these en ....The gastrointestinal tract is a major portal of entry for dietary chemicals and drugs taken orally or as suppositories. Enzymes resident in the gastrointestinal tract have an essential role in preventing these chemicals from reaching other organs and target tissues in the body and in protecting the gastrointestinal tract per se from their effects. The levels of these enzymes in the gastrointestinal tract varies quite extensively between individuals. In this project we will determine how these enzymes are regulated and what causes the large differences in their levels between individuals. This will help us to predict those individuals who are more at risk from the adverse effects of drugs taken orally or as suppositories and from the toxic effects of chemicals in the diet. The project will also help us identify therapies that can increase the levels of these protective enzymes to help reduce the effects of exposure to toxic chemicals .Read moreRead less
Characterization Of Novel Human UDP Glycosyltransferases
Funder
National Health and Medical Research Council
Funding Amount
$417,750.00
Summary
Our defense against the toxic effects of small organic molecules is mediated by families of enzymes found in the internal membranes of cells, predominantly in the liver and gastrointestinal tract. Many small organic molecules, such as environmental pollutants, carcinogens and therapeutic drugs, are fat-soluble and will accumulate in the body to toxic levels unless they are modified by the addition of water-soluble groups. The modified chemical, in the majority of cases, is less toxic and readily ....Our defense against the toxic effects of small organic molecules is mediated by families of enzymes found in the internal membranes of cells, predominantly in the liver and gastrointestinal tract. Many small organic molecules, such as environmental pollutants, carcinogens and therapeutic drugs, are fat-soluble and will accumulate in the body to toxic levels unless they are modified by the addition of water-soluble groups. The modified chemical, in the majority of cases, is less toxic and readily removed from the body. One aim of this project is to identify and characterize newly discovered enzymes in the family that uses sugar residues to modify and eliminate fat-soluble chemicals. Their involvement in the detoxification process and how they are controlled in the cell will be determined. These are the final enzymes in this family remaining to be characterized in humans. In addition to foreign chemicals and toxins, this enzyme family also regulates the intracellular concentrations of signalling molecules such as steroid hormones and chemicals that bind to gene regulatory proteins. Defects and-or variations in these enzymes may alter the levels of these signalling molecules and lead to uncontrolled cell growth (cancer) or cell death. A second aim of this project is to determine whether these novel enzymes are involved in controlling signal concentrations and to determine whether inherited variations in these enzymes will alter the signalling process.Read moreRead less
Macrophage-regulated Tissue Remodelling In Endometrial Receptivity For Embryo Implantation And Pregnancy Success
Funder
National Health and Medical Research Council
Funding Amount
$456,779.00
Summary
Infertility and recurrent miscarriage affect 60-80 million couples globally, including 15% of couples in Australia. Moreover, 1 in 6 pregnancies is affected by pre-eclampsia, low birth weight or preterm labour. Infertility and other pathologies in pregnancy often result from failure of the maternal tissues to adequately support embryo implantation and development of the placenta, leading to insufficient nutritional support of the developing fetus. We have discovered in mice that disruption in th ....Infertility and recurrent miscarriage affect 60-80 million couples globally, including 15% of couples in Australia. Moreover, 1 in 6 pregnancies is affected by pre-eclampsia, low birth weight or preterm labour. Infertility and other pathologies in pregnancy often result from failure of the maternal tissues to adequately support embryo implantation and development of the placenta, leading to insufficient nutritional support of the developing fetus. We have discovered in mice that disruption in the populations of immune cells called macrophages within the uterine endometrial lining can reduce the receptivity of the endometrum to embryo implantation, and can lead to fetal growth retardation and impaired health after birth. The purpose of this project is to delineate the precise functions of macrophages in interacting with other cells in the endometrium to facilitate attachment of the embryo, its invasion into maternal tissues, and its access to an adequate blood supply as the placenta develops during early pregnancy. We will employ state of the art experimental strategies including genetic models to deplete endometrial macrophage populations in mice, and will then study the implications for changes in endometrial tissue structure and function. Furthermore we will investigate the long term consequences of early macrophage perturbations for the fetus and neonate after birth. This study will improve our understanding of how determinants of macrophage function such as infection and inflammatory conditions, male factors, nutrition and stress can impair fertility and compromise optimal pregnancy outcome in humans.Read moreRead less