Interaction Of Angiotensin II And PPARg In Aortic Aneurysm Formation
Funder
National Health and Medical Research Council
Funding Amount
$427,398.00
Summary
Between 5% to 10% of men and 1% of women over the age of 60 years develop weakening of their main abdominal artery leading to slow dilation of the vessel. If this process continues long term the artery can burst resulting in sudden death. At present the only treatment available for this problem is surgery, either open or minimally invasive. Both these forms of treatment are associated with significant complications and unsuitable for some patients. Thus the development of a drug treatment which ....Between 5% to 10% of men and 1% of women over the age of 60 years develop weakening of their main abdominal artery leading to slow dilation of the vessel. If this process continues long term the artery can burst resulting in sudden death. At present the only treatment available for this problem is surgery, either open or minimally invasive. Both these forms of treatment are associated with significant complications and unsuitable for some patients. Thus the development of a drug treatment which can slow or halt the weakening and dilation of the aorta would have great patient benefits. We have identified an important role for a newly discovered protein in weakening of the abdominal aorta. In this study we investigate the role of a pathway which appears to be fundamental in generating this protein. In particular we will assess the role of drug treatment in blocking this pathway as a basis for medical treatment for artery weakening.Read moreRead less
Role Of Osteoprotegerin In Protecting The Diabetic Aorta From Aneurysm Formation
Funder
National Health and Medical Research Council
Funding Amount
$299,250.00
Summary
Between 5% and 10% of men over the age of 60 years develop weakening of their main abdominal artery (aorta) leading to slow dilation of the vessel. If this process continues long term the artery can burst resulting in sudden death. At present the only treatment available for this problem is surgery, either open or minimally invasive. Both these forms of treatment are associated with significant complications and unsuitable for some patients. Thus the development of a drug treatment which can slo ....Between 5% and 10% of men over the age of 60 years develop weakening of their main abdominal artery (aorta) leading to slow dilation of the vessel. If this process continues long term the artery can burst resulting in sudden death. At present the only treatment available for this problem is surgery, either open or minimally invasive. Both these forms of treatment are associated with significant complications and unsuitable for some patients. Thus the development of a drug treatment which can slow or halt the weakening and dilation of the aorta would have great patient benefits'. Surprisingly patients with sugar diabetes are less likely to develop this form of artery weakening. This important negative association may form the basis of discovering a new medication to protect arteries from rupture. In this study we investigate the role of a recently discovered protein in protecting the main abdominal artery from weakening in diabetics. This protein is of particular interest for the following reasons: 1. It comes from a group of proteins believed to be important in artery calcium build-up. 2. Artery calcium is common in patients with diabetes who are relatively protected from aortic weakening. 3. It is being used for the treatment of bone weakening, appears to be safe in patients and therefore is a potential therapeutic agent. We believe this work is an important step towards the development of a successful medical treatment for artery weakening.Read moreRead less
Developing Improved Management For Peripheral Artery Diseases
Funder
National Health and Medical Research Council
Funding Amount
$569,219.00
Summary
~1 million Australians have peripheral artery disease. The current application is for a Practitioner Fellowship to support my research aimed at improving care of artery disease. The aim of the work is to develop improved management approaches for patients with blocked and weakened arteries. This work is particularly important given the recognised management deficiencies for patients with artery disease and the relative little research being undertaken in this area.
Patient-specific Modelling Of Cardiovascular Disease
Funder
National Health and Medical Research Council
Funding Amount
$428,065.00
Summary
Cardiovascular disease is undoubtedly the biggest killer in the developed world and accounts for 30% of all deaths in Australia; killing one Australian every twelve minutes. My research group and I, combine medical imaging with biomedical engineering to perform patient-specific modelling. For example, we can predict the likelihood that aneurysm will rupture or the way blood flows through the aorta. My goal is to make these modelling tools accurate and robust enough to be used in the clinic.
Upregulating Kallistatin To Limit Abdominal Aortic Aneurysm.
Funder
National Health and Medical Research Council
Funding Amount
$668,974.00
Summary
Artery weakening or aneurysm is an important cause of mortality in older adults. Currently there are only surgical therapies for artery weakening. Novel drug therapies are needed for artery weakening. In this project the role of a protein which may inhibit artery weakening is investigated. We also investigate the role of a drug to modulate this protein. The project will include studies in pre-clinical models and a pilot clinical trial in patients.
Blocking The Factor XII- Kallikrein Pathway To Limit Abdominal Aortic Aneurysm
Funder
National Health and Medical Research Council
Funding Amount
$686,995.00
Summary
Artery weakening is present in 2-5% of older adults and is an important cause of sudden death. The investigators have generated substantial preliminary data from a previous NHMRC project implicating the contact pathway in the process of artery weakening. In the current project the investigators will examine the ability of agents which are currently available or being developed for patient use in limiting the process of artery degeneration using established pre-clinical models.
Fenofibrate In The Management Of AbdoMinal Aortic AnEurysm (FAME)
Funder
National Health and Medical Research Council
Funding Amount
$455,713.00
Summary
Approximately 5% of men and 1% of women aged over 60 years develop weakening of the main abdominal artery. Currently the management of artery weakening is focused on surgery with no effective medications available. In this study we will assess whether a drug which limits artery weakening in pre-clinical testing also shows evidence of inhibiting processes important in artery damage in patients. We believe this is a critical next step in the assessment of a promising new treatment.
Mechanisms, Biomarkers And New Therapies For Abdominal Aortic Aneurysm
Funder
National Health and Medical Research Council
Funding Amount
$551,370.00
Summary
Approximately 5% of men and 1% of women aged over 60 years develop artery weakening. The management of artery weakening is currently focused on radiological imaging and surgery. In this fellowship work will be performed to better understand the mechanisms involved in artery weakening, assess new ways of monitoring disease progression and evaluate new medical therapies. It is envisaged that the work will identify a number of new management stratergies for this common condition.
Minimal Structural Strength Required In Endoluminal Devices For Aortic Aneurysms: Mechanisms Of Rupture When They Fail.
Funder
National Health and Medical Research Council
Funding Amount
$102,794.00
Summary
Aneurysmal disease is an age related phenomenon. The mean life expectancy of western populations has doubled in the last 100 years mainly because of the reduction in deaths from occlusive cardiovascular disease. Aneurysmal disease has emerged as a result of the changing pattern of diseases in the community. The impact of this work would be to improve minimally invasive, effective prophylaxis against aneurysm of the abdominal aorta since 80% of those that rupture will result in death. Endoluminal ....Aneurysmal disease is an age related phenomenon. The mean life expectancy of western populations has doubled in the last 100 years mainly because of the reduction in deaths from occlusive cardiovascular disease. Aneurysmal disease has emerged as a result of the changing pattern of diseases in the community. The impact of this work would be to improve minimally invasive, effective prophylaxis against aneurysm of the abdominal aorta since 80% of those that rupture will result in death. Endoluminal grafting provides a much less invasive procedure and provides an attractive and elegant alternative to open surgery. The general drive in this field is towards miniaturisation. The danger is that structural strengths will be compromised with early failures due to lack of strength; and late failures due to inadequate device durability. This application proposes the development of a collaborative venture with the Department of Vascular Surgery, Royal Perth Hospital, Cook R and D (WA), the Advanced Fluid Dynamics Laboratory (CSIRO, Melbourne) and Centre for Health Services Research (University of WA) to investigate the dynamic flow forces involved in aneurysms of the abdominal aorta. It combines together expertise and facilities to examine the forces acting upon endoluminal stent grafts in pulsatile high pressure environments, the impact on the design, patency, effectiveness and longer-term outcomes. The multidisciplinary team provides a comprehensive approach for this developing area of high technology surgery throughout Australia and internationally. The benefits of this study will directly influence the design and durability of the next generation of endoluminal devices and percutaneous insertions. While Australia is at the forefront of development, its current place in the market can only be maintained by further product development.Read moreRead less