I am an academic endocrinologist and clinician. I lead a large research program that investigates the links between hormones and diseases of ageing in women. Thus my research program addresses the contribution of changes in adrenal and ovarian steroids in
Of Mice And Men: Assessing Dietary Proteins Role On Appetite Regulation, Obesity And Cardiovascular Risk
Funder
National Health and Medical Research Council
Funding Amount
$86,521.00
Summary
While the challenge of understanding and managing the global obesity epidemic is well recognised, the role that nutrition plays is more complex than at first glance. Dietary protein may be of central importance in managing weight and small changes in protein consumption may lead to large changes in energy intake and weight. We propose to look at the effects of dietary protein on appetite, its hormonal regulation, and on the risk of developing metabolic diseases such as diabetes.
The Assessment And Treatment Of Cardiovascular Risk Factors,diabetes And Insulin Resistance In Polycystic Ovary Syndrome
Funder
National Health and Medical Research Council
Funding Amount
$304,047.00
Summary
Cardiovascular disease (CVD) and Type II Diabetes Mellitus (T2DM) are major health burdens in Australia. T2DM is increased and CVD may be increased in polycystic ovary syndrome (PCOS), a condition present in 10% of women and 30% of obese reproductive aged women. We aim to explore risk factors for CVD and T2DM in women with PCOS and to assess the effect of treatment strategies on metabolic and reproductive features in PCOS. This is crucial for reducing disease risk in this common condition.
Prediction Of Microvascular Complications In Type 1 Diabetes Using Novel Retinal Vascular Imaging Techniques
Funder
National Health and Medical Research Council
Funding Amount
$396,818.00
Summary
Children with type 1 diabetes face the risk of developing severe complications later in life involving their eyes (retinopathy), kidneys (nephropathy) and nerves (neuropathy). This study aims to determine if subtle, early changes seen in the retinal blood vessels, as measured from new computer imaging techniques, predict the subsequent development of these diabetes complications in children-adolescents with type 1 diabetes.
Androgen Receptor Signalling And Progression Of Prostate Cancer
Funder
National Health and Medical Research Council
Funding Amount
$462,750.00
Summary
Prostate cancer is a major health problem in Australia, being the second leading cause of cancer deaths in men. Although there have been improvements in the diagnosis and treatment of prostate cancer, there are no effective treatments for advanced (metastatic) disease that has spread to other parts of the body. Currently, the only therapy for advanced disease involves the reduction in circulating androgens such as testosterone by surgical or medical castration, i.e. androgen ablation. Because pr ....Prostate cancer is a major health problem in Australia, being the second leading cause of cancer deaths in men. Although there have been improvements in the diagnosis and treatment of prostate cancer, there are no effective treatments for advanced (metastatic) disease that has spread to other parts of the body. Currently, the only therapy for advanced disease involves the reduction in circulating androgens such as testosterone by surgical or medical castration, i.e. androgen ablation. Because prostate cells are dependent on testicular androgens for their survival, surgical or medical castration results in an initial tumour regression. However, tumours inevitably develop resistance to current forms of androgen ablation therapy. Inappropriate activation of androgen signalling by non-testicular androgens or other agents may stimulate tumour growth following androgen ablation. In this study, we aim to identify and characterise determinants of the specificity and sensitivity of activation of the androgen receptor, which is the primary mediator of androgen action. Current androgen ablation treatments for prostate cancer only target the availability of androgenic ligands. We propose that it is also necessary to target the androgen receptor itself, because it can be activated by ligands other than testicular androgens. Therefore, we will also evaluate a panel ofagents that target different aspects of the androgen signalling axis, combined with androgen ablation using a cyclical approach to prevent or delay disease progression.Read moreRead less
Structural And Functional Investigation Into The Cooperation Of IGF And Vitronectin-binding Receptors In Cell Migration
Funder
National Health and Medical Research Council
Funding Amount
$239,250.00
Summary
Breast cancer is the most commonly diagnosed form of cancer in Australian women, accounting for 26% of diagnosed cancers and 21% of cancer deaths among women. One in fourteen Australian and one in nine women worldwide will develop breast cancer in their lifetime. Significantly, approximately one in four of those diagnosed will die from their disease. The primary factor that determines survival is early diagnosis and treatment. Indeed, the primary tumour itself rarely causes death. Rather, the di ....Breast cancer is the most commonly diagnosed form of cancer in Australian women, accounting for 26% of diagnosed cancers and 21% of cancer deaths among women. One in fourteen Australian and one in nine women worldwide will develop breast cancer in their lifetime. Significantly, approximately one in four of those diagnosed will die from their disease. The primary factor that determines survival is early diagnosis and treatment. Indeed, the primary tumour itself rarely causes death. Rather, the dissemination of tumour cells to remote sites and the establishment of secondary tumours in critical sites in the body is the major mechanism of mortality. An understanding of the processes that lead to the establishment of secondary tumour bodies and strategies to halt the spread of cancer beyond the primary site are therefore highly valuable. Two factors thought to be pivotal in breast cancer metastasis are altered interactions with the microenvironment surrounding cells and exposure to increased levels of hormones and growth factors, such as the insulin-like growth factors (IGFs). We have recently found that IGFs form complexes with a protein called vitronectin, found in the microenvironment, and these complexes can stimulate increased migration of breast cancer cells. This project will examine the interaction of IGF and VN in stimulating cell migration and in particular, aims to identify the genes involved in the enhanced cell migration. In addition we will examine how the IGF:vitronectin complexes form and how these in turn interact with receptors on the surface of the cell. The data obtained will provide critical fundamental information that is necessary to develop targeted therapies for the treatment and control of breast cancer.Read moreRead less
MALE OSTEOPOROSIS: A POPULATION-BASED STUDY IN GEELONG
Funder
National Health and Medical Research Council
Funding Amount
$432,645.00
Summary
Osteoporosis is a term used to indicate that bones have become thin and fragile. During the ageing process bone fragility increases and fractures occur more easily and more often. Fractures may also occur during normal daily activities, with fractures of the spine, forearm and hip being common. However, many other sites may fracture. This is a serious problem because fractures cause pain, disability and, sometimes, death. Although previously overshadowed by its effect in women, osteoporosis is i ....Osteoporosis is a term used to indicate that bones have become thin and fragile. During the ageing process bone fragility increases and fractures occur more easily and more often. Fractures may also occur during normal daily activities, with fractures of the spine, forearm and hip being common. However, many other sites may fracture. This is a serious problem because fractures cause pain, disability and, sometimes, death. Although previously overshadowed by its effect in women, osteoporosis is increasingly being recognised in men. In Australia, 39% of all fractures occur in men and prognosis for fracture in men is worse than in women. A consequence of increasing male longevity is that osteoporosis will affect a growing number of Australian men. It is anticipated that between 1996 and 2051, the number of men with fracture will double, with a 4-fold increase in the number of male hip fractures. Unless the problem of osteoporosis in men is addressed and effective interventions are implemented, the substantial health burden imposed by age-related fractures will continue to escalate. In this case-control study of fracture risk in men, men with fractures (cases) will be identified prospectively for 3 years from radiological reports. Controls will be selected concurrently, at random from electoral rolls. Anticipated number of cases and controls are 800 and 1400, respectively. Cases and controls will be characterised for risk factors for fracture: bone density and bone geometry will be measured, serum samples collected, and diet, lifestyle and medical history documented by questionnaire. The advantage of this type of data is that information from patients with fracture will be used to tell us about the risk of fracture in healthy, unaffected men and about the characteristics of the Australian male population at risk for fracture. The information can be used in decision making for the individual and in policy making for the whole population.Read moreRead less
Novel Approaches To Risk Stratification In Patients With Type 2 Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$508,838.00
Summary
75% of the mortality in adults with Type 2 diabetes is due to a cardiac event. Early detection and treatment of cardiac disease is paramount in improving health outcomes. An echocardiogram is an accurate and non-invasive identification of cardiac dysfunction. We will assess the prognostic value of echocardiography and novel plasma markers in patients with diabetes. Our results may lead to new management and screening guidelines for heart disease in diabetes.