Local Sleep In The Awake Brain: An Underlying Cause Of Neurobehavioural Deficits In Sleep Apnea?
Funder
National Health and Medical Research Council
Funding Amount
$582,330.00
Summary
Obstructive sleep apnea (OSA) is a common sleep disorder which significantly impacts daytime functioning leading to excessive sleepiness, and problems with attention and thinking. Currently, the causes for cognitive impairment in OSA (including attentional lapses and performance deficits) are poorly understood. In the awake state, groups of neurons can briefly go “offline” as they do in sleep. These periods of “local sleep” may explain impaired task performance in OSA.
Investigating The Mechanisms That Increase Nerve-evoked Vasoconstriction Following Spinal Cord Injury
Funder
National Health and Medical Research Council
Funding Amount
$372,547.00
Summary
People with spinal cord injury not only lose control of their arms and legs but also lose control of their bladder and bowel. They also have poor control of blood pressure and an overfull bladder or bowel can lead to dangerously high blood pressure. In this project, we are investigating how this abnormal high blood pressure is generated. The aim is to develop treatments which target the mechanisms which increase the blood pressure responses elicited by the bladder and bowel.
Pharmacological Inhibition Of IRAP As A Novel Antifibrotic Strategy
Funder
National Health and Medical Research Council
Funding Amount
$1,036,370.00
Summary
There are very few treatments that can reduce heart stiffening, called fibrosis, which is seen in patients with high blood pressure or in patients who have had a heart attack. This project will test new drugs that we have developed that act by a unique mechanism to reverse or prevent cardiovascular disease in patients with poorly-functioning hearts and blood vessels.
New Generation Antiplatelet Therapies To Prevent Preeclampsia
Funder
National Health and Medical Research Council
Funding Amount
$483,148.00
Summary
Preeclampsia, a major complication of pregnancy, affects around 3-8% of pregnancies. Sadly, there is no way to prevent or delay disease. We have uncovered antiplatelet agents, used to prevent heart disease and stroke, may provide health benefits to women at risk of developing preeclampsia. We will test whether these agents can prevent the pathophysiology of preeclampsia in specialized human & mouse models developed in our laboratory. This work may provide a prevention strategy for preeclampsia.
A Novel Pathway For The Regulation Of Vascular Tone
Funder
National Health and Medical Research Council
Funding Amount
$596,550.00
Summary
The regulation of blood pressure is complex involving the nervous system, kidneys and local pathways that generate blood vessel relaxing and constricting factors. We recently discovered a novel local pathway that becomes induced during inflammation and generates a relaxing substance from the amino acid tryptophan. The present project will identify the active substance and characterize how it causes blood vessel relaxation and thus contributes to the regulation of blood pressure.
Oxidative Regulation Of The Na Pump- A New Player In Vascular Function In Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$504,427.00
Summary
Oxidative stress is a major player in hypertension, atherosclerosis, diabetes and ageing, but we have struggled to develop a therapy to successfully combat in heart and vascular cells in large clinical trials. We have discovered a new role for membrane protein FXYD1, to protect key heart and vascular proteins from functional impairment secondary to oxidative stress. We will investigate its role in protecting against vascular disease, and test novel therapies based on this endogenous protector.
Role Of Epigenomic Changes In Conferring Hyperglycemic Memory
Funder
National Health and Medical Research Council
Funding Amount
$636,146.00
Summary
The major burden of type I diabetes remains its vascular complications including diabetes-accelerated athersclerosis. Despite improved glucose control, diabetic individuals develop complications as a result of prior poor glycemic control. Although the development and progression of these diabetic complications is strongly associated with mean levels of glucose, recent studies suggest that the deleterious effects of early exposure to high levels of glucose persist for years even after treatment h ....The major burden of type I diabetes remains its vascular complications including diabetes-accelerated athersclerosis. Despite improved glucose control, diabetic individuals develop complications as a result of prior poor glycemic control. Although the development and progression of these diabetic complications is strongly associated with mean levels of glucose, recent studies suggest that the deleterious effects of early exposure to high levels of glucose persist for years even after treatment has returned glucose levels towards normal.Read moreRead less
A Study Of The Origins Of Macrophages In Healthy And Atherosclerotic Vasculature Focusing On A Novel Population Of Resident Adventitial Macrophage Progenitor Cells (AMPCs)
Funder
National Health and Medical Research Council
Funding Amount
$465,345.00
Summary
White blood cells (macrophages) play a key role in the development of atherosclerosis, the underlying cause of most heart attacks and strokes. We have made new discoveries to show that there are stem (progenitor) cells for macrophages that exist within the outer lining of blood vessels. This project will study whether these local progenitor cells, called AMPCs, are a source of macrophages in atherosclerosis and in turn could lead to new treatment approaches for cardiovascular disease.
Targeting Renal And Vascular Inflammation In Hypertension
Funder
National Health and Medical Research Council
Funding Amount
$781,589.00
Summary
Inflammation is a hallmark of high blood pressure (A.K.A. hypertension) and underlies clinical complications of the condition such as kidney failure and blood vessel disease. This project will investigate whether a recently described signaling complex termed the 'inflammasome' is a trigger of inflammation in hypertension in the hope of identifying it as a target for new drugs that are more effective in the treatment of hypertension and its complications.
A Critical New Signaling Axis In Lymphatic Vascular Angiogenesis
Funder
National Health and Medical Research Council
Funding Amount
$700,784.00
Summary
The lymphatic vasculature is a crucial part of our vascular system required for tissue fluid drainage and maintenance of fluid homeostasis. Lymphatic vessels play major roles in vascular pathologies and in the spread of solid tumours during cancer progression. We have discovered a new molecular regulator controlling the formation of lymphatic vessels. This project will determine the signalling pathway employed by this new regulator and potential for future therapeutic applications.