Male-female Sperm Signalling - A Novel Pathway For Peri-conceptual Health?
Funder
National Health and Medical Research Council
Funding Amount
$674,920.00
Summary
This project will investigate a new biological process in reproduction, whereby sperm delivered to the cervix at coitus transmit signalling molecules called microRNAs that influence the female immune response, to increase the chances of conception and pregnancy. We will define the molecular details of this signalling pathway in mouse models, and then determine whether human sperm have a comparable function in ‘priming’ the female body to conceive.
Promoting engagement with life in older adulthood. This project aims to examine engagement in meaningful activities among older adults. Increasing older adults' engagement could promote direct benefits for social integration, well-being and better quality of life. The project is expected to generate new knowledge on programs that effectively promote engagement, as well as evaluating a new tailored approach to promoting engagement that aligns with individuals' unique strengths, capabilities and ....Promoting engagement with life in older adulthood. This project aims to examine engagement in meaningful activities among older adults. Increasing older adults' engagement could promote direct benefits for social integration, well-being and better quality of life. The project is expected to generate new knowledge on programs that effectively promote engagement, as well as evaluating a new tailored approach to promoting engagement that aligns with individuals' unique strengths, capabilities and values. The findings aim to provide benefits for community organisations and aged care service providers adopting innovative approaches to promoting ageing well.
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Understanding Ageism in Australia. Ageism refers to stereotypes, prejudice and discrimination towards people based on their age. This project aims to generate new knowledge in relation to older Australians’ experiences of ageism by conducting a population-based survey of ageism and examining its links with mental health and wellbeing. The project will also use intensive longitudinal methods to study everyday ageism. Expected outcomes include identification of at-risk groups that can be used to i ....Understanding Ageism in Australia. Ageism refers to stereotypes, prejudice and discrimination towards people based on their age. This project aims to generate new knowledge in relation to older Australians’ experiences of ageism by conducting a population-based survey of ageism and examining its links with mental health and wellbeing. The project will also use intensive longitudinal methods to study everyday ageism. Expected outcomes include identification of at-risk groups that can be used to inform government policy responses to tackling ageism and will inform the development of interventions and education programs to reduce ageism in the community. This should provide significant benefits for social inclusion, intergenerational solidarity and economic participation Read moreRead less
Boosting brain plasticity and motor function in older adults. Ageing is associated with a pronounced decline in many motor, cognitive, and other brain functions, but the cause remains elusive. This project will examine the mechanisms that contribute to a decline in brain plasticity and motor function in the elderly. Using novel brain stimulation techniques, the project aims to develop an optimal approach to boost plasticity in the ageing brain and improve motor function. A better understanding o ....Boosting brain plasticity and motor function in older adults. Ageing is associated with a pronounced decline in many motor, cognitive, and other brain functions, but the cause remains elusive. This project will examine the mechanisms that contribute to a decline in brain plasticity and motor function in the elderly. Using novel brain stimulation techniques, the project aims to develop an optimal approach to boost plasticity in the ageing brain and improve motor function. A better understanding of changes in brain function and plasticity with advancing age is expected to help to optimise the design of preventative programs aimed at rejuvenating motor and cognitive function in the elderly.Read moreRead less
The Role Of Respiratory And Upper Airway Neural Control In Sleep Disordered Breathing
Funder
National Health and Medical Research Council
Funding Amount
$346,018.00
Summary
Obstructive Sleep Apnea (OSA) is a disorder associated with snoring. It affects 4% of adult men and causes excessive daytime sleepiness leading to increased accidents, high blood pressure and premature cardiovascular disease eg. heart attacks and strokes. Patients with OSA obstruct the floppy portion of the upper airway (UA) during sleep and consequently experience frequent episodes of oxygen deprivation as well as sleep fragmentation. OSA is at least 2-3 times more common in men than women. Whi ....Obstructive Sleep Apnea (OSA) is a disorder associated with snoring. It affects 4% of adult men and causes excessive daytime sleepiness leading to increased accidents, high blood pressure and premature cardiovascular disease eg. heart attacks and strokes. Patients with OSA obstruct the floppy portion of the upper airway (UA) during sleep and consequently experience frequent episodes of oxygen deprivation as well as sleep fragmentation. OSA is at least 2-3 times more common in men than women. While OSA patients seem, on average, to have smaller upper airways than normal subjects, the cause of OSA cannot be attributed to this factor alone. For example, a small UA cannot explain the male tendency for OSA. Abnormalities in breathing control or the control of upper airway muscles that normally hold the airway open might also be important in OSA. Men have previously been shown to have a greater increase in UA resistance during sleep than women, consistent with the idea that a gender difference in UA muscle control partly explains why more men than women have OSA. We aim to investigate how changes in breathing and UA dilator muscle control might lead to unstable patterns of breathing and to OSA. We propose that protective UA muscle reflexes are reduced during sleep more in men than women, and are reduced by low blood oxygen levels and alcohol (a known aggravator of sleep apnea). We further propose that low blood oxygen levels not only result from OSA but may also aggravate OSA by preferentially reducing the activity of UA dilating muscles, by making breathing patterns overall less stable and by depressing the ability of subjects to arouse from sleep to an airway blockage. We believe that this tendency to decrease UA activity may be exaggerated in OSA patients. We also propose that men are more vulnerable to the deleterious effects of low oxygen than women. We will also examine if men and snorers have exaggerated breathing responses on arousal from sleep.Read moreRead less
Resilient ageing and the oldest-old in the Australian longitudinal study of ageing. This project will provide a better understanding of resiliency (positive adaptation) in oldest-old Australians (85 plus). At a time in history when the population is ageing at an unprecedented rate, understanding how the oldest-old respond adaptively to age-related challenges is critically important to informing ageing policies and service provision.
Reconnecting the ageing brain to enhance plasticity and motor learning. The ability to execute and learn skillful actions deteriorates with advancing age, but the cause remains elusive. The main aim of this project is to use new neurophysiological techniques to examine the age-related changes in brain function that contribute to reduced movement control in healthy older adults. The research will use multimodal approaches to reveal the causal role of age-related changes in specific brain networks ....Reconnecting the ageing brain to enhance plasticity and motor learning. The ability to execute and learn skillful actions deteriorates with advancing age, but the cause remains elusive. The main aim of this project is to use new neurophysiological techniques to examine the age-related changes in brain function that contribute to reduced movement control in healthy older adults. The research will use multimodal approaches to reveal the causal role of age-related changes in specific brain networks to motor behaviour and learning. The outcomes will provide significant new knowledge that may help to optimise the design of targeted interventions aimed at rejuvenating brain function and movement quality in the elderly.Read moreRead less
The dynamics of spousal relationships in very late life: transitions, psychological health and longevity. This research will provide a rare insight into the dynamics of very-long term successful marriages. It will also provide an understanding of the dyad in ageing well. In a society where a large percentage of marriages end in divorce, this work has the potential to identify individual differences factors that are conducive to sustaining the marital relationship. In addition, an examination o ....The dynamics of spousal relationships in very late life: transitions, psychological health and longevity. This research will provide a rare insight into the dynamics of very-long term successful marriages. It will also provide an understanding of the dyad in ageing well. In a society where a large percentage of marriages end in divorce, this work has the potential to identify individual differences factors that are conducive to sustaining the marital relationship. In addition, an examination of how couples from different socio-economic backgrounds navigate later life in their own homes or during key late life transitions will also be beneficial for those individuals or policy makers planning for these transitions.Read moreRead less
Social relations and social engagement in older adulthood: implications for health, well being and cognition. This project will examine the nature of changes in peoples' social networks that occur with age, and the effects of these changes on health and well being in later life. The project will use information collected from several ongoing Australian studies of ageing, and will have important implications for social policy in Australia.
Declining mental efficiency, cognitive performance and individual differences in aged function. Ageing men's health is poorer than women's and men show lower uptake of public health messages. The project has potential to extend the productive involvement of older men in the community, thereby reducing dependence and health care expenditure. Future benefits could also include an effective, convenient, preliminary screening procedure for tracking abnormal cognitive ageing from an early stage amo ....Declining mental efficiency, cognitive performance and individual differences in aged function. Ageing men's health is poorer than women's and men show lower uptake of public health messages. The project has potential to extend the productive involvement of older men in the community, thereby reducing dependence and health care expenditure. Future benefits could also include an effective, convenient, preliminary screening procedure for tracking abnormal cognitive ageing from an early stage among elderly people. This could be also used to target and evaluate interventions designed to moderate morbidity in ageing, or enhance functional capacity with aging. The project will enhance cross-disciplinary expertise and provide doctoral and postdoctoral research training.Read moreRead less