Using Reward-based Biomarkers To Improve The Early Detection Of Bipolar Disorder In Individuals Seeking Treatment For Depression
Funder
National Health and Medical Research Council
Funding Amount
$366,252.00
Summary
Bipolar disorder is often misdiagnosed as unipolar major depression, which can have disastrous clinical consequences. Emerging evidence indicates that individuals with bipolar disorder show particular dysfunctions within brain regions involved in processing reward. This research will use cutting-edge neuroscience methodologies to investigate reward processing in these two disorders, with the objective of identifying biological markers that help distinguish bipolar from unipolar depression.
(When) should organisations employ over/underqualified individuals? The aim of the project is to better understand how employee qualifications (ie the extent to which an employee is qualified for the job they hold) influences their voluntary turnover decisions and job performance. Demand and supply in the labour market are frequently out of sync; around half of Australian employees have a level of qualification that does not match the position in which they are currently working. The project aim ....(When) should organisations employ over/underqualified individuals? The aim of the project is to better understand how employee qualifications (ie the extent to which an employee is qualified for the job they hold) influences their voluntary turnover decisions and job performance. Demand and supply in the labour market are frequently out of sync; around half of Australian employees have a level of qualification that does not match the position in which they are currently working. The project aims to establish under what conditions organisations and employees can get the performance benefits from employee qualifications while avoiding fast rates of voluntary turnover. The goal of the project is to develop insights about how to make full use of the benefits of qualifications while avoiding the pitfalls. Insights from this research may be of potential benefit to both workers and to employing organisations.Read moreRead less
Scalability Of The Transform-Us! Program To Promote Children's Physical Activity And Reduce Prolonged Sitting In Victorian Primary Schools
Funder
National Health and Medical Research Council
Funding Amount
$549,823.00
Summary
Transform-Us! is an innovative primary school program that has been found to substantially increase children’s physical activity levels, reduce sitting time and benefit health. With simple changes to the school and classroom environments and teaching practices (eg, standing lessons) we will work with partners in the education and health systems to translate this program across Victorian primary schools to determine the real-world implementation and impact of this program over 5 years.
Flexible methods for latent variable models applied to Health Economics. This project aims to develop flexible and powerful methods for estimating models containing variables that are unobserved, that is, latent. Such models are often used to capture individual heterogeneity and time dependence in data collected on individuals, with each individual observed for several time periods. Latent variables can also infer group membership, where such membership is unavailable from the data. The intended ....Flexible methods for latent variable models applied to Health Economics. This project aims to develop flexible and powerful methods for estimating models containing variables that are unobserved, that is, latent. Such models are often used to capture individual heterogeneity and time dependence in data collected on individuals, with each individual observed for several time periods. Latent variables can also infer group membership, where such membership is unavailable from the data. The intended methodology is Bayesian and based on new particle methods that allow users to select between models and predict future observations even in complex situations. The research aims to inform decision making through improved use of data in health economics and related fields.Read moreRead less
Neurosteroid Mediated Protection After Birth: Approaches For Maximising Protective Steroid Levels In The Neonatal Brain
Funder
National Health and Medical Research Council
Funding Amount
$450,703.00
Summary
Complications during pregnancy, birth asphyxia or premature birth can lead to neurological impairment in the newborn. Despite excellent neonatal care many of these babies go on to have serious handicaps. Neurosteroids are a group of steroids that regulate brain activity. These steroids protect brain cells from damage caused by an inadequate supply of oxygen by suppressing toxicity caused by excessive activity. We have shown that the levels of these protective steroids are remarkably high in the ....Complications during pregnancy, birth asphyxia or premature birth can lead to neurological impairment in the newborn. Despite excellent neonatal care many of these babies go on to have serious handicaps. Neurosteroids are a group of steroids that regulate brain activity. These steroids protect brain cells from damage caused by an inadequate supply of oxygen by suppressing toxicity caused by excessive activity. We have shown that the levels of these protective steroids are remarkably high in the fetal brain and levels rise further in response to fetal stress. The placenta contributes steroid precursors that help maintain these high neurosteroid levels. This placenta-fetal brain interaction comprises an internal mechanism that protects the fetal brain from adverse events during pregnancy. At birth, however, there is a dramatic decline in neurosteroid concentrations in the brain after the loss of the placental precursor supply. The fall in concentrations is even greater in animals that are born growth restricted. This suggests that newborns, particularly those from compromised pregnancies, are at increased risk of brain damage due to low neurosteroid levels. We believe that certain commonly used steroid therapies may also lower steroid levels in the brain and result in increased vulnerability to brain damage during birth or in the early neonatal period. Alternatively, we propose that replacement of neurosteroid precursors in the newborn may raise brain neurosteroid levels and protect against brain damage. In the proposed studies we will evaluate treatments that can raise the concentration of steroids and determine the best strategy for reducing brain injury following complications during pregnancy, at birth and during the early newborn period. This work will determine the best therapeutic approaches for maximising neurosteroid-induced brain protection and for reducing the risk of brain damage.Read moreRead less
Contribution Of Disturbed Blood Flow And Cerebral Metabolism To White Matter Damage In The Perinatal Brain
Funder
National Health and Medical Research Council
Funding Amount
$369,375.00
Summary
It has been known for some time that the white matter regions of the developing brain are particularly vulnerable to damage. These regions are deep in the brain near the ventricles, and are rich in myelin sheaths wrapped around the nerve fibres running from cell-rich areas in the outer layers of the brain to other regions, and down into the spinal cord. Damage to white matter usually leads to behavioural, learning and motor problems in the newborn infant - in its severest form, seen as cerebral ....It has been known for some time that the white matter regions of the developing brain are particularly vulnerable to damage. These regions are deep in the brain near the ventricles, and are rich in myelin sheaths wrapped around the nerve fibres running from cell-rich areas in the outer layers of the brain to other regions, and down into the spinal cord. Damage to white matter usually leads to behavioural, learning and motor problems in the newborn infant - in its severest form, seen as cerebral palsy. Such outcomes are often associated with the presence of asphyxia and infection during pregnancy, leading to the belief that the damage first arises while the baby is still in utero. In this application we suggest that asphyxia and-or infection during pregnancy cause prolonged disturbances in the regulation of blood flow and integrity of the blood-brain barrier in the developing brain, together with changes in metabolism that result in accumulation of prostaglandins and the toxic hydroxyl radical, leading irreversibly to cell death. If this series of events proves to be true, we have suggested and will test several protocols for protecting the fetal brain, which should be readily translatable to clinical practice.Read moreRead less
Evaluation of a brief parenting intervention for parents of children suffering asthma or eczema. Childhood illnesses create a great burden for Australian families and many parents struggle with keeping their child healthy and well adjusted. This research will examine the effects of a brief parenting intervention to help parents become more skilled and confident in their role, leading to better child adjustment, health and wellbeing.
Gene-environment Interaction In Healthy Brain Ageing And Age Related Neurodegeneration
Funder
National Health and Medical Research Council
Funding Amount
$2,162,805.00
Summary
Healthy ageing is characterised by low level of disability, high cognitive and functional capacity, and an active engagement in life. The most important ingredient of healthy ageing is a healthy brain, bereft of age-related diseases and dysfunction. Brain ageing and brain diseases are determined by multiple genetic factors that interact with environmental influences. The genes are multiple, the majority of which have a small influence. This study is an attempt to identify some of these genes and ....Healthy ageing is characterised by low level of disability, high cognitive and functional capacity, and an active engagement in life. The most important ingredient of healthy ageing is a healthy brain, bereft of age-related diseases and dysfunction. Brain ageing and brain diseases are determined by multiple genetic factors that interact with environmental influences. The genes are multiple, the majority of which have a small influence. This study is an attempt to identify some of these genes and investigate their interactions with environmental factors. It will use a unique resource, the NHMRC Australian Twin Registry (ATR) to identify elderly twins, and will also include the siblings of these twins so as to increase the ability to identify the important factors. The participants, who are listed on the ATR and recruited from NSW, Queensland and Victoria, will receive detailed neurological, psychiatric and cognitive assessments, and will undergo brain MRI scans. Their blood samples will be used to measure key chemicals that may affect brain ageing and to extract DNA for genetic tests. They will be followed-up every two years thereafter, and changes in their brain structure and cognitive functioning will be examined. Available statistical models will be used to examine gene-environment interactions and specific genes will be explored for their contribution to the additive genetic effects. This study will yield an important resource for national and international collaborations and has the potential to discover new genes.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190100887
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Economic analysis of time constraints on decision-making in health. This project aims to determine whether and how time constraints affect decision-making. Time constraints can impair the quality of decisions in health, resulting in serious medical and financial consequences. This project will employ experimental economic methods to examine how misaligned preferences and incentives influence decision-making under time constraints. The project will offer scientific evidence and accurate measureme ....Economic analysis of time constraints on decision-making in health. This project aims to determine whether and how time constraints affect decision-making. Time constraints can impair the quality of decisions in health, resulting in serious medical and financial consequences. This project will employ experimental economic methods to examine how misaligned preferences and incentives influence decision-making under time constraints. The project will offer scientific evidence and accurate measurements, provide insights into interventions to align the preferences of doctors and patients, and to lower the overtreatment of patients in the health-care market. The project expects to benefit society and contribute to a more efficient healthcare system.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150101032
Funder
Australian Research Council
Funding Amount
$378,000.00
Summary
Economic analysis of peer effects in adolescence and adulthood. Although healthier, stronger and better at reasoning than young children, adolescents' morbidity and mortality rates are double those of young children. Unintentional injury, mostly avoidable and attributed to wrong decisions, is the biggest cause of death and hospitalisation among adolescents in Australia. Peer presence is likely to be a major cause of adolescents' inferior decision-making. This project aims to use experimental eco ....Economic analysis of peer effects in adolescence and adulthood. Although healthier, stronger and better at reasoning than young children, adolescents' morbidity and mortality rates are double those of young children. Unintentional injury, mostly avoidable and attributed to wrong decisions, is the biggest cause of death and hospitalisation among adolescents in Australia. Peer presence is likely to be a major cause of adolescents' inferior decision-making. This project aims to use experimental economics methods to study how peer presence affects the parameters of the economic decision model, specifically risk tolerance, discounting, and propensity to make errors. The project aims to advance the understanding of decision-making across the lifespan, inform theoretical modelling and advise policy-makers how to reduce the risks to adolescents.Read moreRead less