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Electrophysiological and Anatomical Characterization of the Coronary Sinus Musculature and its Relationship to the Atria. This series of experiments will characterise the normal coronary sinus musculature and its connectivity to the atria of the heart and establish their electrical relationships. The underlying characteristics of the muscular connections will also be evaluated with a view to possible future manipulations of the system. Understanding normal heart impulse propagation is paramount ....Electrophysiological and Anatomical Characterization of the Coronary Sinus Musculature and its Relationship to the Atria. This series of experiments will characterise the normal coronary sinus musculature and its connectivity to the atria of the heart and establish their electrical relationships. The underlying characteristics of the muscular connections will also be evaluated with a view to possible future manipulations of the system. Understanding normal heart impulse propagation is paramount before we can understand and develop treatments for dealing with heart problems. This information will facilitate the development of techniques to treat and prevent heart rhythm disorders that are a common cause of morbidity in the community.Read moreRead less
Breathing disturbances and reflexes in sleep and effects on sleep and daytime function. This project will investigate protective reflexes in sleep and the impact of breathing disturbances and frequent arousal on markers of brain functioning and health. This will also significantly advance the understanding of key mechanisms promoting unstable breathing in sleep and ill health and functioning from disturbed sleep.
Regenerating lizard tails: A model for understanding the process of lymphangiogenesis. In humans, impaired lymphatic drainage in limbs causes the debilitating swelling termed lymphoedema. Lymphoedema affects 500,000,000 people worldwide. In the developed world lymphoedema predominantly results from surgery for cancer, and occurs in approximately 25% of breast cancer patients. We will examine lymph vessel regeneration (lymphangiogenesis) in a naturally regenerating, complex structure (the lizard ....Regenerating lizard tails: A model for understanding the process of lymphangiogenesis. In humans, impaired lymphatic drainage in limbs causes the debilitating swelling termed lymphoedema. Lymphoedema affects 500,000,000 people worldwide. In the developed world lymphoedema predominantly results from surgery for cancer, and occurs in approximately 25% of breast cancer patients. We will examine lymph vessel regeneration (lymphangiogenesis) in a naturally regenerating, complex structure (the lizard tail), to describe the regrowth process and determine the abundance, location, functional properties and molecular control of the new lymphatics. Furthermore, if reptilian lymphatic growth factors can promote lymphangiogenesis in mammals, we can design novel therapeutic approaches using reptilian ligands to promote lymphangiogenesis in lymphoedematous human tissues.Read moreRead less
Novel computational tools for the analysis of sympathetic nervous system activity. This project will investigate electrical signals from the heart, resulting in novel tools for the assessment of sympathetic nervous system activity. The findings will contribute to advancing Australia's international leading position in health technology and improve community health.
The transcriptional control of lymphatic vessel development. Lymphatic vessels are a vital, but often overlooked, component of the cardiovascular system. These specialised vessels return tissue fluid to the bloodstream, absorb dietary lipids and transport cells of the immune system throughout the body. Defects in the growth and development of lymphatic vessels result in disorders including lymphedema, obesity, inflammatory diseases and cancer. This project aims to define how transcription factor ....The transcriptional control of lymphatic vessel development. Lymphatic vessels are a vital, but often overlooked, component of the cardiovascular system. These specialised vessels return tissue fluid to the bloodstream, absorb dietary lipids and transport cells of the immune system throughout the body. Defects in the growth and development of lymphatic vessels result in disorders including lymphedema, obesity, inflammatory diseases and cancer. This project aims to define how transcription factors program lymphatic vessel identity and control the development of lymphatic vessel valves. This knowledge will provide new insight into the fundamental mechanisms by which the lymphatic vasculature is constructed during development.Read moreRead less
Examining the links between obesity and insulin resistance. Obesity prevalence is rapidly increasing in Australia and contributes to the onset of many chronic diseases, such as diabetes, heart disease and cancer. This project will examine how obesity contributes to disease risk and how modifying nutrient delivery and other interventions that protect from cellular stress reduces these risks.
Development and evaluation of a remote monitoring system and its application to cardiac rehabilitation and occupational health. This project further develops and evaluates a system developed by the Industry Partner which permits real-time remote monitoring of a person's cardiac activity, position and velocity via GPS, and selected aspects of motion and posture using accelerometry. The study has three aims: to enhance the system's capacity for remote monitoring of human motion and physiology; to ....Development and evaluation of a remote monitoring system and its application to cardiac rehabilitation and occupational health. This project further develops and evaluates a system developed by the Industry Partner which permits real-time remote monitoring of a person's cardiac activity, position and velocity via GPS, and selected aspects of motion and posture using accelerometry. The study has three aims: to enhance the system's capacity for remote monitoring of human motion and physiology; to test its ability to support cardiac rehabilitation for those unable to access hospital-based programs; and to evaluate its application to the monitoring of workloads in physically demanding tasks associated with cardiovascular ill-health and musculoskeletal injury.Read moreRead less
Role For Zinc And ZIP2 In The Action Of Nitric Oxide And In Vascular Protection Against Cigarette Smoke And Cardiovascular Disease
Funder
National Health and Medical Research Council
Funding Amount
$685,941.00
Summary
The NO/cGMP signalling pathway, which is central to cardiovascular physiology and protection against disease, is only fully effective when there are adequate levels of zinc in the vascular endothelium. This is especially important where zinc stores are depleted (elderly, smokers, diabetics and kidney disease). There is an urgent clinical need to implement strategies to monitor vascular Zn status. This application will explore the underlying science and translate these to the clinic.
Electrochemical biosensors for detection of cardiac disease markers in blood. Cardiovascular diseases leading to heart failure have a prevalence of over 16 per cent in Australia. The social, economic and health burden is higher than for any other disease group. Hence, it is critically important to develop fit-for-purpose sensors of known cardiac biomarkers, which alert patients and clinicians of the risk of imminent heart failure.
CARDIAC-ARIA : Measuring the accessibility to cardiovascular services in rural and remote Australia via applied geographical spatial technology (GIS). Despite significant improvements in the cardiovascular health of Australians, Cardiovascular Disease (CVD) continues to impose a heavy burden on Australians in terms of cost,disability and death. Recent evidence suggests that mortality from CVD increases with increasing remoteness. Rates are reported to be between 20% and 50% higher in rural areas ....CARDIAC-ARIA : Measuring the accessibility to cardiovascular services in rural and remote Australia via applied geographical spatial technology (GIS). Despite significant improvements in the cardiovascular health of Australians, Cardiovascular Disease (CVD) continues to impose a heavy burden on Australians in terms of cost,disability and death. Recent evidence suggests that mortality from CVD increases with increasing remoteness. Rates are reported to be between 20% and 50% higher in rural areas compared to major cities. This project, with its extensive use of Geographic Information Systems (GIS) technology, will rank 11,338 rural and remote population centres to identify geographical 'hotspots' where there is likely to be a mismatch between the demand for and actual provision of cardiovascular services.Read moreRead less