Adult Consequences Of Childhood Exposure To Psychological Trauma
Funder
National Health and Medical Research Council
Funding Amount
$292,530.00
Summary
The importance of childhood experience to adult adjustment (DOES THIS MAKE SENSE) is an issue of general public health interest. In particular, in the area of personality development, there are a number of theories concerning the importance of childhood experience and developmental stresses on later personality, development, psychological functioning and physical health. More recently there has been debate on the accuracy with which adults areable to remember traumatic experiences in childhood. ....The importance of childhood experience to adult adjustment (DOES THIS MAKE SENSE) is an issue of general public health interest. In particular, in the area of personality development, there are a number of theories concerning the importance of childhood experience and developmental stresses on later personality, development, psychological functioning and physical health. More recently there has been debate on the accuracy with which adults areable to remember traumatic experiences in childhood. This study will follow a group of 808 primary school children who were exposed to the 1983 Ash Wednesday bushfires in SOuth Australia. They were involved in a study which examined them two months, eight months and twenty six months after the disaster. This rich descriptive set of information about these children and their families forms an objective data base against which their adult recall of the experience can be judged. The symptoms of these children were also documented at the time as was their disaster exposure. The impact of this one event, in the context of the other developmental influences will be examined as determinants of their adjustment in adult life. Finally, there has been an increasing interest in the way that previous traumatic exposure influences the nature of the hormonal response to stress. Using a test of functioning of the cortisol system, the stress response of this population will be compared with a control population who were also studied at the time of the original disaster.Read moreRead less
Alcohol, Angry Rumination, And Aggression: The Role Of Acute Impairment Of Executive Functioning
Funder
National Health and Medical Research Council
Funding Amount
$341,780.00
Summary
In Australia, alcohol-induced aggression imposes substantial psychological, public health, social, and economic burdens on victims, perpetrators, and society. When people drink and brood over interpersonal transgresssions, they are at increased risk of violence, even toward the innocent. The goal of the proposed research is to identify neuropsychological mechanisms that account for this increased aggression.
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
Neuroendocrine Responses To Psychological Stress: Unmasking The Protective Role Of The Prefrontal Cortex.
Funder
National Health and Medical Research Council
Funding Amount
$346,153.00
Summary
This project seeks to build up a picture of one of the mechanisms that the brain uses to protect our bodies from the potentially harmful effects of psychological stress. When we are subjected to psychological stress one of the consequences is the release of a hormone, corticosterone, into the blood-stream. This can be beneficial in the short-term as it helps our body redistribute its pattern of energy utilization in a way that helps in coping with an unexpected challenge. However, excessive secr ....This project seeks to build up a picture of one of the mechanisms that the brain uses to protect our bodies from the potentially harmful effects of psychological stress. When we are subjected to psychological stress one of the consequences is the release of a hormone, corticosterone, into the blood-stream. This can be beneficial in the short-term as it helps our body redistribute its pattern of energy utilization in a way that helps in coping with an unexpected challenge. However, excessive secretion of corticosterone due to excessive exposure to psychological stress can damage your health. For example, it can make you more susceptible to infection and also accelerate the rate at which your brain ages. The brain possesses certain mechanisms which try to limit the release of corticosterone when you are subjected to psychological stress. Unfortunately these mechanisms are not quite up to doing the necessary job under the conditions in which we live today, i.e. a very high level of psychological stress is a common feature of modern life. Nevertheless we believe that if we can properly understand these protective mechanisms in the brain, it may be possible to develop drugs which can boost their efficiency. In the long term this could greatly reduce ill-health in our society.Read moreRead less
Insights Into The Acute Cerebral Lesion Of Childhood Diabetes And It's Neuropsychological Sequelae
Funder
National Health and Medical Research Council
Funding Amount
$416,000.00
Summary
Type 1 diabetes in childhood is a major cause of morbidity with an Australian prevalence of approximately 20 per 100,000 children under 15 years of age. The leading cause of death in type 1 diabetes in children and adolescents is diabetic ketoacidosis complicated by cerebral oedema (brain swelling), the origins of which remain unknown. This research is aimed at providing an insight into changes in the brain of children with diabetic ketoacidosis (DKA) and the relationship of these brain changes ....Type 1 diabetes in childhood is a major cause of morbidity with an Australian prevalence of approximately 20 per 100,000 children under 15 years of age. The leading cause of death in type 1 diabetes in children and adolescents is diabetic ketoacidosis complicated by cerebral oedema (brain swelling), the origins of which remain unknown. This research is aimed at providing an insight into changes in the brain of children with diabetic ketoacidosis (DKA) and the relationship of these brain changes to short and long term neuropsychological functioning. The major aim of this project is to provide an insight into brain changes of children with diabetic ketoacidosis (DKA) and the relationship of these brain changes to subseuqent brain function. This is a study where we will simply observe differences between newly diagnosed type 1 diabetic patients with no ktoacidosis, ketoacidosis or ketoacidosis with brain swelling over 6 months. We will measure brain function using various techniques includiung: magnetic resonance imaging (MRI), magnetic resonance spectroscopy (MRS), electrophysiology (EEG) and neuropsychological tests. The significance of this project is that it will provide insight into the brain impairment of diabetic patients with and without DKA, and with brain swelling in the context of DKA. By further clarifying the nature of brain impairment we will provide early intervention strategies to improve psychological development of the young patients with diabetes. In addition to this we hope to better understand the origins of brain swelling during DKA and design treatment protocols that will prevent this devastating complication.Read moreRead less