PURINERGIC TRANSMISSION AND CENTRAL AUTONOMIC REGULATION
Funder
National Health and Medical Research Council
Funding Amount
$157,848.00
Summary
The brain regulates bodily functions in a complex manner. One such example is the regulation of blood pressure and heart rate. This is achieved by an interconnected network of brain nuclei that sense information from the major blood vessels and integrate appropriate responses to maintain the status quo. Chemicals called neurotransmitters convey the nervous messages, and one such example is purines, which include ATP and adenosine. Both ATP and adenosine can act in a number of brain regions to mo ....The brain regulates bodily functions in a complex manner. One such example is the regulation of blood pressure and heart rate. This is achieved by an interconnected network of brain nuclei that sense information from the major blood vessels and integrate appropriate responses to maintain the status quo. Chemicals called neurotransmitters convey the nervous messages, and one such example is purines, which include ATP and adenosine. Both ATP and adenosine can act in a number of brain regions to modulate blood pressure and heart rate. This project is designed to characterise the mechanism by which purines act within specific brain nuclei to regulate the cardiovascular system. Considering the large economic burden on the healthcare system caused by cardiovascular disease, this research is vital to increase our understanding of how diseases such as hypertension may be caused, and therefore provide improved therapeutic strategies.Read moreRead less
Mechanisms Of A Novel Strategy For Neuroprotection In Experimental Models Of Stroke And Epilepsy
Funder
National Health and Medical Research Council
Funding Amount
$480,499.00
Summary
Stroke and epilepsy are among the most common neurological disorders affecting many Australians. In both disorders, brain metabolism is disturbed. Dr. Borges has found that an edible oil inhibits seizures in mice and it is now being tested in epilepsy patients. This grant will allow her laboratory to study the effects of this oil against stroke and to investigate how it protects the brain. New knowledge obtained will help to develop new treatments for brain disorders.
Oxidation Of Arterial Extracellular Matrix By Myeloperoxidase-derived Oxidants
Funder
National Health and Medical Research Council
Funding Amount
$183,266.00
Summary
It is well established that changes occur in the composition and nature of the extracellular matrix present in the artery wall during the development of atherosclerosis. The changes that occur in this matrix affect both the mechanical and physical properties of the arterial wall (e.g. its ability to cope with the high pressures genrated by the pumping of blood from the heart) and the adhesion of cells. It is well established that certain key cell types do not adhere well, or grow properly, on al ....It is well established that changes occur in the composition and nature of the extracellular matrix present in the artery wall during the development of atherosclerosis. The changes that occur in this matrix affect both the mechanical and physical properties of the arterial wall (e.g. its ability to cope with the high pressures genrated by the pumping of blood from the heart) and the adhesion of cells. It is well established that certain key cell types do not adhere well, or grow properly, on altered or damaged matrix and this can result in either the loss of key cell types from the artery wall (e.g. loss of endothelial cells) and - or the proliferation and invasion of cells from other sources (e.g. smooth muscle cell invasion into the intimal space). There is circumstantial evidence that some of these changes occur via the formation of oxidants by the heme enzyme myeloperoxidase which is released from activated white cells. In this study we will employ recently developed analytical techniques to examine the nature of the alterations that are present in atherosclerotic plaques in comparison to normal human artery samples, and investigate the mechanisms by which such alterations arise. We will seek evidence for, or against, the involvement of myeloperoxidase-derived oxidants in the observed changes using specific markers which we have developed for the presence of such damage. This information will allow the rational design of strategies to interfere with the progression of atherosclerosis, which is the major killer of Australians.Read moreRead less
Harnessing The Extracellular Matrix To Fight Obesity-induced Cognitive Impairment
Funder
National Health and Medical Research Council
Funding Amount
$645,205.00
Summary
The health burden of obesity in Australia is great, but the detrimental impact of obesity on brain function is not yet understood. This research program takes an innovative approach to define how obesity changes non-neuronal brain components that regulate neuroplasticity and protect neurons from damage. Outcomes will define new mechanisms to prevent obesity-induced cognitive impairment and critical knowledge gain leading to novel therapeutic approaches and policy changes to improve health.
The Collagen-rich Matrix As A Driver Of Breast Cancer Progression And Resistance To Therapy
Funder
National Health and Medical Research Council
Funding Amount
$702,230.00
Summary
The extracellular matrix or 'matrix' surrounds all cells and is very important in controlling cell behaviour. In cancer, the matrix is dramatically altered, making cancer more aggressive. We recently developed a new way to study the matrix in breast cancer, and have analysed the matrix at different stages (Early/Mid/Late). We have uncovered exciting new matrix targets associated with more aggressive tumours. This project will validate their potential as therapeutic targets in breast cancer.