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The Role Of A Low Emulsifier Diet To Treat Crohn's Disease
Funder
National Health and Medical Research Council
Funding Amount
$447,603.00
Summary
Currently, there are no specific diets known to treat Crohn’s disease (CD). Initial lab- and animal-based studies have indicated emulsifiers added to food drive inflammation in CD, but no human trials completed. This study will design and feed high and low emulsifier diets to healthy and CD subjects and measure markers of inflammation. This will establish the role of a low emulsifier diet to treat CD.
Genetic Validation Of Stat3 As A Tractable Pharmacological Target In Gastrointestinal Disease
Funder
National Health and Medical Research Council
Funding Amount
$586,964.00
Summary
Cancers of the stomach and the colon are a major health burden. One of the central signaling molecules that drives these cancers is called Stat3. Here we propose to use a novel strain of mice that allows us to experimentally dial down the amount of Stat3 protein and hence to predict how effective a future anti-Stat3 cancer drug will be.
Bacterial pathogens are a major cause of illness and death, producing diseases ranging from acute infections to cancer. However, not all infected individuals will succumb to these pathologies. What factors dictate which individuals develop these diseases is an important complex question. The core focus of my research is the identification and characterisation of novel host factors that are involved in resistance or susceptibility to bacterial-associated diseases of the gastrointestinal tract.
Gut motility requires enteric neurons, which are located in the gut wall. During development, enteric neurons arise from precursors in the brain that migrate into the intestine. Failure of enteric neuron precursors to migrate and differentiate normally results in pediatric motility disorders. The aim of this research is to identify the mechanisms controlling the development of enteric neurons so that therapies can be developed for pediatric motility disorders.
Inflammation Drives TFF2 Epigenetic Silencing In Gastric Cancer
Funder
National Health and Medical Research Council
Funding Amount
$618,909.00
Summary
Over one million deaths from stomach cancer will occur annually in the next decade. This often fatal disease can be caused by infection from childhood by the bacterium H. pylori. We will study a new link between the inflammation caused by H. pylori and a type of mutation known as epigenetic silencing that switches off a gene which normally prevents stomach cancer. Understanding this process will help us to discover approaches for early detection of stomach cancer and lead to the development of n ....Over one million deaths from stomach cancer will occur annually in the next decade. This often fatal disease can be caused by infection from childhood by the bacterium H. pylori. We will study a new link between the inflammation caused by H. pylori and a type of mutation known as epigenetic silencing that switches off a gene which normally prevents stomach cancer. Understanding this process will help us to discover approaches for early detection of stomach cancer and lead to the development of new drugs that prevent disease.Read moreRead less
Hypoxic Regulation Of Integrin Beta1 During Mucosal Wound Healing
Funder
National Health and Medical Research Council
Funding Amount
$318,104.00
Summary
Very little is currently known about how healing is initiated in the gut. Further understanding may allow us to improve the treatment of IBD wounding and allow new therapies to control the disease. Our work examines the role of an adhesion protein, ?1 integrin, important in the repair of intestinal wounds. Understanding the mechanisms of how ?1 integrin is involved in wound healing may allow the rational design of therapies to aid or accelerate wound healing in inflammatory disease.
Exploration Of The Role Of Microbes In Gastrointestinal Diseases
Funder
National Health and Medical Research Council
Funding Amount
$687,974.00
Summary
This fellowship will investigate diseases of the gastrointestinal tract of children. The research program will undertake a range of is a highly innovative projects including; development of an effective rotavirus vaccine to be administered to newborns; genetic characterisation of rotavirus strains able to escape vaccine protection; and how alterations in the human gut microbiome (bacteria and viruses) influence the development/relapse of CrohnÍs disease.
Clinical And Microbiological Studies Of Faecal Microbiota Transplantation In Ulcerative Colitis - A Phase II, Multicentre, Randomised Double Blind, Exploratory Proof Of Concept, Placebo Controlled Trial
Funder
National Health and Medical Research Council
Funding Amount
$140,949.00
Summary
Ulcerative Colitis (UC) is a chronic inflammatory condition affecting the large bowel. It is the result of a dysfunctional immune system that inappropriately targets and damages the colon. There is increasing evidence that gut bacteria play a crucial role in UC, possibly by stimulating inappropriate activation of immune cells. We believe that by "transplanting" the faeces (and thus gut microbes) of healthy individuals into the colon of UC patients, we may change the bacterial make up and correct ....Ulcerative Colitis (UC) is a chronic inflammatory condition affecting the large bowel. It is the result of a dysfunctional immune system that inappropriately targets and damages the colon. There is increasing evidence that gut bacteria play a crucial role in UC, possibly by stimulating inappropriate activation of immune cells. We believe that by "transplanting" the faeces (and thus gut microbes) of healthy individuals into the colon of UC patients, we may change the bacterial make up and correct the inappropriate immune system activation.Read moreRead less
The Knotty Problem Of Enterochromaffin Cells And Gastro-intestinal Function: Unravelling Cause And Effect
Funder
National Health and Medical Research Council
Funding Amount
$403,097.00
Summary
It is crucial to understand how the food we eat controls the secretions and movements of a healthy or a diseased gastrointestinal (GI) system. One way control is achieved involves the release of serotonin (5-HT) from the enterochromaffin cells present in the epithelial lining of the intestine. This is the subject of our proposal and our results will help us to understand the causes of GI disorders and help to formulate new treatments.
Regulation Of Cellular Responses To Neuropeptides.
Funder
National Health and Medical Research Council
Funding Amount
$83,510.00
Summary
Neuropeptides are chemicals released from nerves that are responsible for communication between the nerves, glands, muscles or other nerves. Neuropeptides exert their diverse biological effects by interacting with small structures on the cells they wish to communicate with. These structures bind the neuropeptide and are termed neuropeptide receptors. The responses of tissues to neuropeptides, for example, contraction of muscle, decrease with continued exposure to the neuropeptide. This reduction ....Neuropeptides are chemicals released from nerves that are responsible for communication between the nerves, glands, muscles or other nerves. Neuropeptides exert their diverse biological effects by interacting with small structures on the cells they wish to communicate with. These structures bind the neuropeptide and are termed neuropeptide receptors. The responses of tissues to neuropeptides, for example, contraction of muscle, decrease with continued exposure to the neuropeptide. This reduction in response is termed desensitization is thought to turn off the response to cells following stimulation by neuropeptides. In this study, I will investigate the mechanisms behind the desensitization of VPAC receptors which are a found throughout the body and have many important roles for example, gastrointestinal, pancreatic and reproductive function and control of muscle. VPAC receptors are also highly expressed in certain many cancers such as breast, prostate and colon carcinoma. The wide variety of functions that these receptors perform and the wide distribution in the body suggest that these are very important receptors. To date research into the responses and desensitisation of these receptors has been lacking, and the work that has been done has become confusing as more receptors and neuropeptides which bind them are discovered. The current project aims to carefully study these receptors and to determine their role in health and disease. The understanding the interaction of receptor and neuropeptide can perhaps lead to development of new therapeutic agents.Read moreRead less