Mechanisms Of Oxidised Protein Accumulation In Ageing Cells
Funder
National Health and Medical Research Council
Funding Amount
$429,000.00
Summary
Australia has one of the world's most rapidly ageing populations. It is estimated that in 30 years time over 30% of the population will be over 65; many will suffer from a debilitating, age-related disease. The diseases of ageing represent one of the major health challenges this century. Despite their increasing incidence, our understanding of the underlying causes is limited. A common feature is the accumulation of damaged proteins in cells and tissues. Damaged proteins are usually broken down ....Australia has one of the world's most rapidly ageing populations. It is estimated that in 30 years time over 30% of the population will be over 65; many will suffer from a debilitating, age-related disease. The diseases of ageing represent one of the major health challenges this century. Despite their increasing incidence, our understanding of the underlying causes is limited. A common feature is the accumulation of damaged proteins in cells and tissues. Damaged proteins are usually broken down by the cells and replaced, but in many age-related diseases this process fails. The most common source of protein damage is attack by oxygen-derived free radicals. These are by-products of our body's need for oxygen and can originate from atmospheric pollutants. Oxygen rusts metal, makes fat go rancid and can cause irreparable damage to proteins and other biological molecules. Free radical damage contributes to the development of many age-related diseases such as atherosclerosis and neurodegenerative diseases such as Alzheimer's disease. The accumulation of damaged proteins can cause cell death. Our knowledge of the mechanisms by which cells remove proteins damaged by oxygen and the reasons for their accumulation is limited. In this project we will use a novel technique we have developed to generate oxidised proteins in ageing cells. We will identify cellular mechanisms required for the efficient removal of damaged proteins and those mechanisms which fail in ageing cells. We will focus on a group of proteins which protect damaged proteins from aggregating and accumulating and we will examine how we can prevent the accumulation of oxidised proteins by stimulating the body s defence mechanisms. Since the population of Australia is ageing, diseases of ageing are going to consume an increasing amount of the national health budget. A better knowledge of these cellular mechanisms will allow us to design effective prevention and treatment strategies which are at present lacking.Read moreRead less
Ageing, trust, and financial exploitation: social, emotional and cognitive mechanisms. This project aims to understand how age-related differences in the processing of social and emotional information contribute to the exploitation of older adults' trust. This research will examine deception detection during financial negotiations and provide new strategies for ensuring the financial independence and well-being of older Australians.
A European DNA Bank For Deciphering The Missing Heritability Of Alzheimer's Disease (EADB)
Funder
National Health and Medical Research Council
Funding Amount
$1,556,995.00
Summary
Understanding the genetics of Alzheimer’s disease (AD) is one of the best ways of improving our knowledge of the underlying mechanisms of disease development. There is evidence that genetic factors account for up to 80% of the risk for AD. Recent advances in genetics still explain <50% of this risk. This proposal will help two major Australian studies to partner with a large European consortium in trying to understand the “missing” heritability, using existing and novel genetic data.
Ageing and self-regulation. Australia is faced with an ageing population, and thus an increasingly important national goal is ageing well and ageing productively. Our preliminary research suggests that self-regulation may be a significant problem for older Australians. The proposed research will provide a clearer picture of when and why older adults have difficulties regulating their behaviour, and which older adults are particularly susceptible to lapses in self-control. If older adults do hav ....Ageing and self-regulation. Australia is faced with an ageing population, and thus an increasingly important national goal is ageing well and ageing productively. Our preliminary research suggests that self-regulation may be a significant problem for older Australians. The proposed research will provide a clearer picture of when and why older adults have difficulties regulating their behaviour, and which older adults are particularly susceptible to lapses in self-control. If older adults do have difficulties self-regulating, and if these self-regulation failures incur health, financial and social costs, by gaining a clearer understanding of this problem, the proposed research will take an important step in improving the lives of older Australians. Read moreRead less
Everyday cognition in older adulthood: Mechanisms contributing to the age-prospective memory paradox. Australia is faced with an ageing population, and thus an increasingly important goal is ageing well and ageing productively. The proposed research will clarify why older adults perform extremely well on prospective memory (PM) tasks based in everyday environments, but very poorly on PM tasks that take place in the controlled situation of the laboratory. Advancing our understanding of why this ....Everyday cognition in older adulthood: Mechanisms contributing to the age-prospective memory paradox. Australia is faced with an ageing population, and thus an increasingly important goal is ageing well and ageing productively. The proposed research will clarify why older adults perform extremely well on prospective memory (PM) tasks based in everyday environments, but very poorly on PM tasks that take place in the controlled situation of the laboratory. Advancing our understanding of why this 'paradoxical' pattern of age effects occurs will help clarify how other aspects of everyday cognition in older adulthood may be optimised, and consequently take an important step in improving the lives of older adults. The results will also inform development of rehabilitation strategies for clinical groups who present with PM difficulties. Read moreRead less
Age at first birth, mode of conception and adjustment to parenthood. The trend to delayed childbearing is well-established, multiply determined and unlikely to change in the short term. This study will provide contemporary Australian evidence on the experience of becoming a parent at different ages, naturally and through assisted conception, for Australian men and women. Both risk and protective factors for older first-time parents will be identified, thus informing policy and services that can ....Age at first birth, mode of conception and adjustment to parenthood. The trend to delayed childbearing is well-established, multiply determined and unlikely to change in the short term. This study will provide contemporary Australian evidence on the experience of becoming a parent at different ages, naturally and through assisted conception, for Australian men and women. Both risk and protective factors for older first-time parents will be identified, thus informing policy and services that can better support Australian families with planning and rearing children. A key outcome will be a Parenting Decision-Aid to provide evidence-based reader-friendly information about the positives and negatives of first-time parenthood at different ages.Read moreRead less
BRIDGET: BRain Imaging, Cognition, Dementia And Next Generation GEnomics: A Transdisciplinary Approach To Search For Risk And Protective Factors Of Neurodegenerative Disease
Funder
National Health and Medical Research Council
Funding Amount
$1,081,489.00
Summary
Alzheimer’s disease (AD) begins many years before diagnosis and yet its aetiology is still poorly understood. The BRIDGET consortium aims to identify genetic variants that are associated with structural brain ageing, cognitive performance, and dementia risk in richly phenotyped international and Australian population-based samples. This work aims to provide crucial information on the molecular pathways leading to AD, potentially leading to improved health outcomes for our ageing population.
Is Placental Aging The Key To Understanding, Predicting And Preventing Stillbirth?
Funder
National Health and Medical Research Council
Funding Amount
$473,861.00
Summary
Stillbirth occurs in 35 times as many pregnancies as sudden infant death but the causes are unknown. This project will help to develop tests that can predict the risk of stillbirth so that the obstetrician can deliver the baby before it dies. The investigators hypothesise that stillbirth is due to aging of the placenta and that markers of the aging placenta can be detected in the mother’s blood. The project brings together experts in the placenta, aging and obstetric care of high risk pregnancy.
The Prevention, Early Detection, & Effective Management Of Neurocognitive Disorders In The Elderly
Funder
National Health and Medical Research Council
Funding Amount
$4,929,014.00
Summary
The unprecedented greying of the world population is posing a major challenge to health care in meeting the needs of older individuals with cognitive disorders such as Alzheimer�s disease. At the same time, drugs are being developed to prevent these disorders, or to treat them effectively. Our proposal is a comprehensive attempt at dealing with the neuropsychiatric aspects of these neurocognitive disorders. Our group is endeavouring to better define the early stages of these disorders, and study ....The unprecedented greying of the world population is posing a major challenge to health care in meeting the needs of older individuals with cognitive disorders such as Alzheimer�s disease. At the same time, drugs are being developed to prevent these disorders, or to treat them effectively. Our proposal is a comprehensive attempt at dealing with the neuropsychiatric aspects of these neurocognitive disorders. Our group is endeavouring to better define the early stages of these disorders, and studying methods of detecting them at an early stage, using the latest neuropsychological and neuroimaging techniques. We wish to investigate new drugs for the prevention of dementia. Much of dementia is not treated early because of lack of training of primary care physicians in identifying dementia, and we are developing methods to deal with this problem. We are also examining the role of cognitive disorders in accidents and suicides in the elderly, and the development of depression. We are determining the role of psychiatric disorders in the care of these patients, and the methods of alleviating the burden of disease. We expect that this research will make a major impact on health policy for these disorders in Australia. We also hope to make our Program the premier centre for training in geriatric neuropsychiatry.Read moreRead less