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.
Taking advice: Limits and potentials of social decision-making in older age. Older adults are increasingly victims of financial fraud and abuse. While well-intentioned advice has the potential to improve financial decision-making, ill-intentioned advice can lead to exploitation. This project will use extensive behavioural testing to establish the factors governing how much weight older adults give to advice depending on the type of advisor, the type of advice, and feedback about advice quality. ....Taking advice: Limits and potentials of social decision-making in older age. Older adults are increasingly victims of financial fraud and abuse. While well-intentioned advice has the potential to improve financial decision-making, ill-intentioned advice can lead to exploitation. This project will use extensive behavioural testing to establish the factors governing how much weight older adults give to advice depending on the type of advisor, the type of advice, and feedback about advice quality. The outcome will be a model of the influence of advice on decision-making in ageing. This will provide an evidence base to create best practice guidelines, interventions, and decision aids that will reduce exploitation and increase the independence and wellbeing of Australia’s rapidly ageing population.Read moreRead less
Increasing advance personal planning by older adults. This project aims to increase the uptake of advance personal planning among people aged 65 years or over in the community by developing, implementing and evaluating a community action model. People have a legal right to engage in advance personal planning, a process that helps them discuss and document their financial, personal and health preferences, in case they later lose the ability to make or communicate decisions. Few people plan ahead, ....Increasing advance personal planning by older adults. This project aims to increase the uptake of advance personal planning among people aged 65 years or over in the community by developing, implementing and evaluating a community action model. People have a legal right to engage in advance personal planning, a process that helps them discuss and document their financial, personal and health preferences, in case they later lose the ability to make or communicate decisions. Few people plan ahead, even though it can reduce the likelihood of financial exploitation, family conflict and unwanted medical care. This project aims to provide a model of community action to build capacity and collaboration across social services and improve the wellbeing of older people.Read moreRead less
Improving aged care with memory conversations. This project aims to investigate conversational techniques known as "elaborative reminiscing" as a tool for aged care staff to practice relationship-based care in their day-to-day interactions with older clients. The project expects to generate new knowledge about which specific techniques increase reminiscing during routine care, and how these tools have ongoing benefits for aged care clients. Expected outcomes include an evidence-based training pr ....Improving aged care with memory conversations. This project aims to investigate conversational techniques known as "elaborative reminiscing" as a tool for aged care staff to practice relationship-based care in their day-to-day interactions with older clients. The project expects to generate new knowledge about which specific techniques increase reminiscing during routine care, and how these tools have ongoing benefits for aged care clients. Expected outcomes include an evidence-based training program and improved understanding of facilitators and barriers to meeting aged care clients' social needs. This should provide significant benefits by improving wellbeing of clients in aged care, reducing hospitalisations, and enabling aged care providers to meet new industry standards.Read moreRead less
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
Drivers of ageing and adaptive ageing in middle-aged and older adults. This project aims to answer crucial questions about how our early years influence our health and wellbeing in middle and later life. Drawing on one of Australia’s longest running studies of social and emotional development, we link decades of developmental data collected since 1983 to social, emotional, cognitive and physical wellbeing in participants turning 40 (midlife) and 70 (later life). It will provide insight into impo ....Drivers of ageing and adaptive ageing in middle-aged and older adults. This project aims to answer crucial questions about how our early years influence our health and wellbeing in middle and later life. Drawing on one of Australia’s longest running studies of social and emotional development, we link decades of developmental data collected since 1983 to social, emotional, cognitive and physical wellbeing in participants turning 40 (midlife) and 70 (later life). It will provide insight into important and largely unanswered questions about the way social factors in the first half of life shape our later selves. This study will inform government and health policy targeting ageing populations.
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