The Astrocyte: A Crossroads In Cerebral Malaria Pathogenesis
Funder
National Health and Medical Research Council
Funding Amount
$597,598.00
Summary
Malaria is an infectious disease that kills over 1 million people each year. It is prevalent in the Australian region, e.g. PNG and SE Asia. One of its most serious complications is cerebral malaria (CM), which affects the brain and is often fatal. This project will determine whether a very important cell in the brain, the astrocyte, is involved in the disease processes that lead to CM. This is highly relevant to the development of therapies that can be given along with anti-malarial drugs.
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.
What Role Do Cerebral Hypoxia And Sleep Disruption Play In The Neurocognitive Effects Of Paediatric Sleep Disordered Breathing?
Funder
National Health and Medical Research Council
Funding Amount
$558,957.00
Summary
Sleep disordered breathing (SDB) describes a spectrum of disorders caused by obstruction of the upper airway during sleep from simple primary snoring (PS) to obstructive sleep apnoea (OSA). Findings of our recently studies have provided strong evidence that all levels of SDB severity including PS are associated with neurocognitive and behavioural deficits. In this study we will investigate the mechanisms of which underpin these deficits.
Septic shock is a common clinical problem; it is frequently associated with kidney failure that increases mortality. We aim to determine the changes within the kidney that cause it to fail. We will establish whether oxygen levels and blood flow are altered within the kidney, and if blood is shunted through specific blood vessels, reducing flow in critical areas. Importantly, we will determine if clinical treatments used to improve kidney function cause long-term damage by reducing tissue oxygen.
Pathogenic Dendritic Cells In Human Kidney Disease
Funder
National Health and Medical Research Council
Funding Amount
$370,983.00
Summary
The cost of treating end stage kidney disease in Australia is more than a billion dollars per year. Kidney disease is associated with an influx of inflammatory cells. However, current therapeutics fail to target this process due to our poor understanding of inflammatory immune cells in disease progression. This project will investigate the biology of immune cells in human kidney disease. I believe that this study will inform more accurate diagnoses and improved treatments for patients.
Creatine, A Multi-organ Protectant Against Hypoxic Injury In The Neonate
Funder
National Health and Medical Research Council
Funding Amount
$524,802.00
Summary
The WHO estimates that up to 9 million babies suffer birth hypoxia each year, leading to 29% of global neonatal deaths, and significant rates of severe disability. We hypothesise that creatine, given as a supplement to the mothers diet during pregnancy, will protect her babies organs should low oxygen around the time of birth occur. The low cost of creatine is particularly relevant for rural and remote communities and the developing world where, currently, there are no effective therapies.
Measuring Hypoxia Induced MRNA In Maternal Blood To Monitor Wellbeing Of Growth-restricted Fetuses
Funder
National Health and Medical Research Council
Funding Amount
$421,358.00
Summary
Severely growth restricted fetuses are at peril of stillbirth from low oxygenation. While ultrasound monitoring improves outcomes, babies are still lost. Better ways to monitor the health the unborn baby are needed. We have recently discovered fetuses’ starved of oxygen leak RNA into mother's blood. Thus, measuring RNA molecules in blood could be used to assess fetal health. We will examine whether measuring mRNA in maternal blood could be used to monitor wellbeing of growth-restricted fetuses.
Roles For Gastrin And Hypoxia In Colorectal Carcinogenesis
Funder
National Health and Medical Research Council
Funding Amount
$636,508.00
Summary
Our objective is to understand how hormones such as gastrin stimulate the development of colorectal cancer. Our preliminary data shows that the amount of gastrin produced by tumour cells is increased by low oxygen. We will therefore study how the increase in gastrin in response to low oxygen causes a compensatory growth of the tumour. The ability to interfere with this process should allow us to slow tumour growth.
Enhancing The Neuroprotective Benefit Of Hypothermia With Melatonin In The Asphyxiated Neonate
Funder
National Health and Medical Research Council
Funding Amount
$785,331.00
Summary
During labour, asphyxic episodes which cause a severe reduction in oxygen supply can become prolonged and result in perinatal brain injury, termed Hypoxic Ischemic Encephalopathy, which may underlie cerebral palsy. Presently, newborn infants with suspected encephalopathy are cooled, which modestly protects the brain against cellular injury. We propose that the administration of melatonin to the newborn, in addition to cooling, will decrease the post-asphyxic formation of oxygen free radicals, th ....During labour, asphyxic episodes which cause a severe reduction in oxygen supply can become prolonged and result in perinatal brain injury, termed Hypoxic Ischemic Encephalopathy, which may underlie cerebral palsy. Presently, newborn infants with suspected encephalopathy are cooled, which modestly protects the brain against cellular injury. We propose that the administration of melatonin to the newborn, in addition to cooling, will decrease the post-asphyxic formation of oxygen free radicals, thereby reducing the progression of brain damage.Read moreRead less
Epithelial Metabolism As A Mediator Of Host-microbiome Interactions In Inflammatory Bowel Disease
Funder
National Health and Medical Research Council
Funding Amount
$833,648.00
Summary
This project examines how the changes in the intestinal environment during inflammation influences the behaviour of bacteria within the micobiome and whether those changes can be counteracted to sustain a healthy microbiome, even during episodes of disease. This work uses cell and animal models to examine how inflammation changes the intestinal nutrients that the microbiome requires to maintain its community and whether supplementing the microbiome with these nutrients can prevent disease.