Psychiatric disorders are associated with considerable social and economic burden which could be reduced if we understood mental health outcomes in high risk populations. This fellowship will use advanced brain imaging to understand the development of mental health disorders in those at high risk of bipolar disorder and dementia.
Combining Timelapse Imaging And Computational Modelling To Understand The Mechanisms Of Axon Guidance In The Developing Retinotectal System
Funder
National Health and Medical Research Council
Funding Amount
$438,793.00
Summary
Understanding how patterns of brain wiring develop is crucial for understanding many cognitive disorders. One of the commonest types of connection pattern in the brain is a topographic map, where nearby neurons in one structure connect to nearby neurons in another structure. Using the transgenic tools available in the zebrafish as a model system, we will combine novel experiments with computational modelling to understand the rules which govern the formation of topographic maps in the brain.
Defining The Changes In Cell Biology Caused By PRESENILIN Truncations Associated With Different Diseases
Funder
National Health and Medical Research Council
Funding Amount
$622,886.00
Summary
Truncations of the PRESENILIN genes in humans can cause two very different diseases: inherited, early onset Alzheimer’s disease (familial Alzheimer's disease) and a skin disease named inherited Acne Inversa. One truncation is also involved in the non-inherited, late onset form of Alzheimer’s disease. Why do these different truncations produce different diseases? Investigating this question will teach us more about the molecular bases of these different diseases. This understanding will be requir ....Truncations of the PRESENILIN genes in humans can cause two very different diseases: inherited, early onset Alzheimer’s disease (familial Alzheimer's disease) and a skin disease named inherited Acne Inversa. One truncation is also involved in the non-inherited, late onset form of Alzheimer’s disease. Why do these different truncations produce different diseases? Investigating this question will teach us more about the molecular bases of these different diseases. This understanding will be required for the development of treatments.Read moreRead less
Computational Analysis Of The Influence Of Growth Cone Shape Dynamics On Axon Guidance
Funder
National Health and Medical Research Council
Funding Amount
$346,406.00
Summary
For the brain to function correctly its neurons must be connected correctly. This project will use a novel mathematical approach to understand how growing nerve fibres find where to go in the developing brain. In particular we will use both experiments and computational analysis to understand how the shape of the tip of a growing nerve fibre helps the fibre navigate. This may help us understand the biological cause of many different types of mental disorders.
Longitudinal Transcriptome Profiles For People With Dementia
Funder
National Health and Medical Research Council
Funding Amount
$475,913.00
Summary
Over the past decade, less than half a percent of drugs trialled for Alzheimer Disease were found to be effective. This highlights the need for new drug targets. This Fellowship aims to study how genes express themselves over time, among people with very high risk of dementia (genetic form of Alzheimer Disease and Huntington Disease). By looking at gene expression in nerve tissue in the nose, fluid around the brain, and blood, I hope to better understand the disease mechanisms causing dementia.
SELECTIVE VULNERABILITY IN ALZHEIMER’S DISEASE AND RELATED DISORDERS: MECHANISM OF TAU PATHOLOGY
Funder
National Health and Medical Research Council
Funding Amount
$1,072,324.00
Summary
Alzheimer’s disease and related dementias affect 230,000 people in Australia, with numbers expected to grow to 730,000 by 2050. The direct costs for health and residential care alone exceed $6.6 billion per annum. By identifying genes that protect degenerating neurons in the Alzheimer brain, a deeper understanding of the underlying processes will be gained and therapeutic targets will be defined that will assist in developing a therapy for a yet uncurable disease.
From Brain Maps To Mechanisms: Modelling The Pathophysiology Of Dementia
Funder
National Health and Medical Research Council
Funding Amount
$604,513.00
Summary
As the brain ages, the relationship between its structure and function also changes. In this study, I will use detailed computational modelling and extensive analyses of brain dynamics to improve interventional strategies by: 1. Characterising healthy and unhealthy brain dynamics during ageing; 2. Classifying the various subtypes of pathological dynamics; and 3. Predicting pathological neurodegeneration by identifying the earliest signs of perturbations in healthy ageing.
L1 Retrotransposition: The Missing Link Between Genetics And Environmental Factors In Parkinson's Disease ?
Funder
National Health and Medical Research Council
Funding Amount
$604,644.00
Summary
The study proposed here focuses on understanding the role of specific mobile DNA sequences in the interaction between environmental and genetic risk factors causing Parkinson’s disease (PD) leading to dementia. The project proposes identification of mobile DNA induced mutations in post-mortem human PD patient brain samples. The significance and mechanisms of mobile DNA induced mutations will be then tested in a PD mouse model.
Trials of numerous agents to slow the progression of Parkinsons disease have provided ambiguous or negative results despite having good preliminary evidence for their efficacy. The most likely reason is that many nerve cells are already destroyed by the time of diagnosis. Thus effective therapies may be most (and possible only) effective when administered in the presymptomatic stages of disease. This proposal is directed at developing method to detect early presymptomatic Parkinsons disease.