Identification Of The Mechanisms Of Lipotoxicity Within The Bone Marrow Milieu
Funder
National Health and Medical Research Council
Funding Amount
$416,007.00
Summary
Obesity and osteoporosis two major epidemics of our time. Bone and fat communicate with each other in two different ways. A hormonal communication links bone and fat in a positive manner. In contrast, at the local level, increasing levels of marrow fat with aging affect bone quality through the local release of toxic factors. We will identify these factors and will assess the potential reversibility of lipotoxicity in bone, as a new therapeutic approach to osteoporosis in the elderly.
Androgen Receptor Signalling In Development And Progression Of Prostate Cancer
Funder
National Health and Medical Research Council
Funding Amount
$753,420.00
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 growth and survival, surgical or medical castration results in an initial tumour regression. However, tumours inevitably develop resistance to androgen ablation therapy and regrow. In this study we aim to provide the most comprehensive analysis to date of the role of androgen signalling in the initiation and progression of prostate cancer. This will enable us to identify the most effective means of eliminating androgen-dependent prostate tumours and identify tumours with high metastatic potential. Our studies will indicate whether treatments targeting androgen signalling are a more effective strategy to inhibit prostate cancer growth while minimising undesirable side effects.Read moreRead less
Dietary Protein Effects In Elderly Women: Musculoskeletal, Renal, Cardiovascular And Body Composition Endpoints
Funder
National Health and Medical Research Council
Funding Amount
$478,946.00
Summary
Fractures and falls of the elderly are major health problems in our community in terms of disability and cost. It is critical to the future health of our aging population to develop non-pharmaceutical interventions to maintain health into old age. Epidemiologic studies have shown that relatively high protein intake is associated with increased bone mineral mass and reduced incidence of osteoporotic fracture in elderly people. Low protein intakes can lead to loss of muscle mass. To date there hav ....Fractures and falls of the elderly are major health problems in our community in terms of disability and cost. It is critical to the future health of our aging population to develop non-pharmaceutical interventions to maintain health into old age. Epidemiologic studies have shown that relatively high protein intake is associated with increased bone mineral mass and reduced incidence of osteoporotic fracture in elderly people. Low protein intakes can lead to loss of muscle mass. To date there have been no randomised trials of sufficient duration to examine the effects of increased dietary protein intake on bone and muscle health of the elderly. The aim of this study is to examine the effectiveness of protein supplementation for the prevention of osteoporosis and muscle wasting in elderly women, and the safety of such an intervention through monitoring renal function and risk factors for cardiovascular disease. Two hundred and twenty women will be recruited to this study and be assigned to protein group or placebo group. Women in the protein group will received 250 ml high protein drink (containing 30 g protein) per day and women in the placebo group will receive placebo drink containing the same amount of energy, calcium but no additional protein. Bone structure, muscle mass, body composition, renal function and risk factors for cardiovascular disease will be monitored during the 2 year study period. The results of this randomised, controlled study will clarify the role of protein on bone mass and structure, muscle mass and body composition in the elderly. At the same time, the safety of such intervention on renal and cardiovascular endpoints will also be evaluated. It is envisaged that the results of this study if positive will translate into both immediately applicable intervention strategies that are relevant at a program and an individual level.Read moreRead less