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How Does Iron Accumulation Affect Parkinson’s Disease And What Controls It?
Funder
National Health and Medical Research Council
Funding Amount
$545,517.00
Summary
Currently there is no cure for Parkinson's disease, and although we have a number of treatments to manage the disease there is an urgent need for a further understanding of the disease process. This proposal will investigate the critical role that iron plays in the cause of neuronal cell death that results in Parkinson's disease, and will investigate methods for regulating metal levels in the brain.
Cyclic Nucleotide Induced Degeneration In The Vertebrate Retina
Funder
National Health and Medical Research Council
Funding Amount
$196,527.00
Summary
Retinitis Pigmentosa is a leading cause of human blindness that is currently untreatable. Elevated cyclic nucleotide levels have been shown to have a causal link with the degenerative process. This proposal will develop animal models of retinal degeneration as well as use a genetic mutant showing elevated cyclic nucleotides to identify the mechanism for retinal degeneration. In addition, potential therapeutic options will be investigated using currently available drugs.
Identification And Study Of Novel Conserved Molecule With An Axonal Protective Function
Funder
National Health and Medical Research Council
Funding Amount
$625,005.00
Summary
Axonal degeneration is a common feature of a number of neurodegenerative conditions, such as motor neuron, Parkinson’s, Alzheimer’s and Huntington’s diseases. However, the genetic causes that regulate this biological event are poorly understood. We have identified a novel, conserved axonal protective molecule. We will study how it functions, and if it can be exploited to protect diseased neurons.
Neuronal Membranes And Connections In Dementia: Targets For Intervention
Funder
National Health and Medical Research Council
Funding Amount
$720,144.00
Summary
This research aims to understand why some people with Mild Cognitive Impairment (MCI) progress to dementia, whilst others do not. The fact that some people’s cognitive abilities can improve provides an opportunity to study the mechanisms that protect their brain cells from the degeneration associated with dementia. Understanding the cellular changes will lead to therapies that can be tested in the lab for individuals.
Understanding the biological mechanisms of nerve degeneration is an essential step toward the development of novel therapies for human neurodegenerative conditions such as Parkinson's, Alzheimer's and Huntington's diseases, and for spinal cord injuries. The studies presented in this proposal, using the powerful molecular and genetic tools available for the small nematode worm C. elegans, will provide new insights into the cellular and molecular mechanisms responsible for nerve degeneration.
Parkinson's Disease (PD) is one of the most common neurodegenerative disorders. Its incidence increases steadily with age affecting approximately 1% of the population at age 65 and up to 5% by the age of 85. At the time of diagnosis, patients suffer from a range of motor impairments that worsen over time. Pathologically these patients are characterised by the accumulation of a protein known as alpha-synuclein in specific types of nerve cells in their brain. However, the function of this protein ....Parkinson's Disease (PD) is one of the most common neurodegenerative disorders. Its incidence increases steadily with age affecting approximately 1% of the population at age 65 and up to 5% by the age of 85. At the time of diagnosis, patients suffer from a range of motor impairments that worsen over time. Pathologically these patients are characterised by the accumulation of a protein known as alpha-synuclein in specific types of nerve cells in their brain. However, the function of this protein is unknown. This proposal will clarify the role of alpha-synuclein in PD and normal CNS function and provide new potential therapeutic targets for the treatment of PD and other neurodegenerative disorders in which oxidative stress, excitotoxicity and central nervous system trauma have been implicated.Read moreRead less
Mechanisms By Which Aging Induces Constipation In The Elderly
Funder
National Health and Medical Research Council
Funding Amount
$369,717.00
Summary
Chronic constipation is one of the most common reasons why the elderly community seek medical attention. There is now strong evidence to suggest that the high prevalence of constipation in the elderly is likely due to a dramatic loss of specific nerves that lie in the wall of the colon. This project will use latest imaging technologies to identify the mechanisms by which these nerves are impaired with age that lead to constipation in the elderly.
Targeting Early Cellular Damage During Secondary Degeneration Using Nanosphere-based Drug Delivery
Funder
National Health and Medical Research Council
Funding Amount
$424,407.00
Summary
After brain injury, there are no treatments to stop the spread of damage to intact tissue, a process involving different cell types and biochemical events. Clinical trials have targeted one event and have failed because large therapeutic doses are toxic and because combined treatments are needed to target different events. We will harness nanotechnology to target delivery of small, sustained doses of one or more drugs to specific cell types and biochemical events to stop the spread of damage.
Cell-based Neurotrophin Delivery With Cochlear Implantation For Long-term Rescue Of Auditory Neurones Following Deafness
Funder
National Health and Medical Research Council
Funding Amount
$437,212.00
Summary
This project aims to develop safe and effective techniques for long-term delivery of drugs to the ear by genetically modifying cells so they release the theraputic agents over extended periods of time, and then to use encapsulation techniques to safely deliver these cells to the inner ear in combination with a cochlear implant.
Cellular Mechanisms Underlying Neurodegenerative Disease And The Neuronal Response To Trauma
Funder
National Health and Medical Research Council
Funding Amount
$406,264.00
Summary
Brain and spinal cord injury are major causes of death and disability, with degenerative diseases similarly affecting large proportions of the population. The singular objective of my research proposal is to increase our understanding of the molecular and cellular processes by which nerve cells respond to trauma and diseases such as Alzheimer’s and Parkinson’s, and to identify new therapeutic approaches aimed at encouraging the repair of damaged cells.