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The Persisting Vascular Effects Of Activation Of The Renin-Angiotensin System
Funder
National Health and Medical Research Council
Funding Amount
$628,456.00
Summary
Heart attacks and strokes are the major cause of death and disability in Australians. Heart disease is widely viewed to be the legacy of our diet and lifestyle, and even that of our parents. We propose to explore in detail the molecular mechanism of how this imprinting comes about and identify new targets to prevent, retard or reverse heart disease.
Interactions Between RAGE And The Type 1 Angiotensin Receptor Determine The Pro-atherosclerotic Actions Of Angiotensin II
Funder
National Health and Medical Research Council
Funding Amount
$521,956.00
Summary
Heart attacks and strokes are a major cause of death and disability in Australians. Activation of the renin angiotensin system plays a key role in the development and progression of atherosclerosis, the process that leads to narrowing and obstruction of arteries. In preliminary data we have found a way to block these pathways without affecting the control of blood pressure. We believe that interventions based on these data will be important for the prevention and treatment of heart disease.
Neural Control Of Renin Expression By MicroRNA In Hypertension
Funder
National Health and Medical Research Council
Funding Amount
$805,972.00
Summary
We identified that mice bred to have high blood pressure have an overactive nervous system that affects a gene that controls a hormone in the kidney that increases blood pressure. The proposal will determine the effects of a novel treatment to alter the gene to reverse the changes in the kidney and thereby normalizing blood pressure. This will lead to new therapy and reduce the major risk factor of cardiovascular disease.
Maternal Recognition Of Fetal Sex In The Regulation Of Labour
Funder
National Health and Medical Research Council
Funding Amount
$455,821.00
Summary
Preterm birth is the largest cause of death in infants and males are more likely to be born preterm than females. We propose that the intrauterine renin-angiotensin system, the activity of which is regulated in a sex-specific manner, plays a critical role in protecting against preterm labour. Our study will further our understanding of the mechanisms of preterm labour and provide new insight into the sex-specific differences in the prevalence of preterm birth.
RAGE And ACE2 Shedding As Therapeutic Targets In Diabetes And Cardiovascular Disease
Funder
National Health and Medical Research Council
Funding Amount
$748,447.00
Summary
We have previously demonstrated the pivotal role of two shed proteins, Receptor for Advanced Glycation End-products (RAGE) and Angiotensin Converting Enzyme Receptor 2 (ACE2) in heart disease and diabetic complications. In this project, we will use a novel technologies to modify shedding of these proteins from the cell surface and alter their ability to cause disease.
Regulation Of The Placental Renin-angiotensin System By MicroRNAs; Implications For Pregnancies Complicated By Placental Insufficiency?
Funder
National Health and Medical Research Council
Funding Amount
$483,058.00
Summary
Intrauterine growth restriction (IUGR) and preeclampsia (PrE) are life threatening to mother and baby, making the baby susceptible to disease as an adult. One of the major causes of PreE and IUGR is placentation. Placentation is affected by the placental renin-angiotensin system (RAS), which is controlled by microRNAs. We will describe these microRNAs, what controls them; determine their expression and RAS expression in normal pregnancy, IUGR and PrE, thus providing novel biomarkers for their ea ....Intrauterine growth restriction (IUGR) and preeclampsia (PrE) are life threatening to mother and baby, making the baby susceptible to disease as an adult. One of the major causes of PreE and IUGR is placentation. Placentation is affected by the placental renin-angiotensin system (RAS), which is controlled by microRNAs. We will describe these microRNAs, what controls them; determine their expression and RAS expression in normal pregnancy, IUGR and PrE, thus providing novel biomarkers for their early detection.Read moreRead less
Novel Aspects Of The Renin Angiotensin System In Cardio-renal Disease
Funder
National Health and Medical Research Council
Funding Amount
$497,330.00
Summary
Cardiovascular disease and chronic kidney disease are major public health problems with increasing incidence and prevalence in Australia. There are complex causal relationships between these diseases, and each of them may be caused by or be a complication of the other. This proposal will investigate the role of an important hormone system, the renin angiotensin system, in experimental models and in patients with heart and kidney disease. The results may identify novel markers in the blood that c ....Cardiovascular disease and chronic kidney disease are major public health problems with increasing incidence and prevalence in Australia. There are complex causal relationships between these diseases, and each of them may be caused by or be a complication of the other. This proposal will investigate the role of an important hormone system, the renin angiotensin system, in experimental models and in patients with heart and kidney disease. The results may identify novel markers in the blood that can predict if someone will develop kidney disease.Read moreRead less
The Intrarenal Renin Angiotensin System (RAS) In Indigenous Women: An Early Indicator Of Renal Dysfunction In Women At Risk Of Pregnancy Complications
Funder
National Health and Medical Research Council
Funding Amount
$645,358.00
Summary
Indigenous women are twice as likely to have low birth weight babies compared to non-Indigenous women and 2.5 times as likely to develop preeclampsia, possibly because they have a much greater incidence of chronic kidney disease, predisposing them to these pregnancy outcomes. We have found a new, sensitive marker of early stage renal dysfunction in pregnancy that could be useful for detecting early stage renal disease and which is indicative of an increased risk of adverse pregnancy outcome.
Role Of The Paraventricular Hypothalamus In Angiotensin Induced Neurogenic Hypertension
Funder
National Health and Medical Research Council
Funding Amount
$447,014.00
Summary
Hormones released from the kidney are important for setting the level of blood pressure. We have discovered that very low levels of the peptide angiotensin in the blood also leads to activation of specific parts of the brain that drive to increase the nervous system activity to blood vessels and therefore increases blood pressure further. This study will explore the chemical signals in the brain mediating this increase in blood pressure.
Novel Treatments Of Fibrosis For Hypertensive Heart Disease
Funder
National Health and Medical Research Council
Funding Amount
$912,536.00
Summary
A recognised risk factor for cardiovascular disease is high blood pressure which contributes to a stiffer heart that can ultimately lead to heart failure. There are very few treatments that can reduce heart stiffening, called fibrosis. This project is focused on the preclinical testing of novel compounds that we have developed to reverse the build-up of fibrosis in the heart, which will lead to better treatment of elderly patients with high blood pressure and poorly-functioning hearts.