Axonal Regeneration And Degeneration: Cellular And Molecular Mechanisms
Funder
National Health and Medical Research Council
Funding Amount
$622,655.00
Summary
Understanding how to repair of nerve damage following a traumatic injury, a vascular accident, or a degenerative condition, is essential to develop novel effective treatments. We have identified, in a simple genetic model system, the molecular mechanisms that allow a transected nerve to be repaired by reattachment of its two separated fragments. This 'axonal fusion' process is a highly promising innovative approach that can be exploited to restore the original neuronal circuit.
Understanding Axonal Fusion: An Alternative Mechanism To Repair Injured Axons.
Funder
National Health and Medical Research Council
Funding Amount
$648,447.00
Summary
Being able to repair an injured nerve by stitching the two damages sections back together is an incredible challenge in neurosurgery, and a highly desired outcome for the surgeon as well as for the patient suffering a spinal cord or peripheral injury. We have discovered molecules that mediate nerve repair by favouring the reconnection of the two separated fragments. We will study how they function, and if they can be applied to repair injured mammalian neurons.
Membrane Fusion In Axonal Regeneration: Molecules And Mechanisms
Funder
National Health and Medical Research Council
Funding Amount
$461,597.00
Summary
Limited nerve regeneration is the main obstacle for recovery from spinal cord and brain injuries. Understanding the cellular and molecular mechanisms underlying axonal regeneration is an essential step toward the development of novel effective therapies to enhance this process. In this proposal, we use the powerful molecular and genetic tools available for the small nematode worm C. elegans to identify and study axonal regeneration and discover the key molecules involved.
Mechanisms Of Autoantibody Mediated Axonal Injury In Inflammatory Demyelinating Neuropathies
Funder
National Health and Medical Research Council
Funding Amount
$580,197.00
Summary
Destruction of nerve fibres (axons) accompanies demyelination and may be responsible for most of the deficit in multiple sclerosis and immune neuropathies. This project will investigate the role of recently described antibodies against a normal component of the axon in axonal damage in both animal models and in patients with immune neuropathies. The project could have a major effect on approaches to management of these diseases.
Preclinical Evaluation Of The Novel Therapeutic Compound APP96-110 In An Ovine Model Of Traumatic Brain Injury
Funder
National Health and Medical Research Council
Funding Amount
$874,734.00
Summary
Traumatic brain injury (TBI) is a significant cause of death and disability, and yet there are currently no effective treatments to improve outcome following such an insult. Our laboratory has developed a novel therapeutic compound, by identifying an endogenous neuroprotective molecule, in the amyloid precursor protein and then identifying the active site and modifying it to improve its efficacy. We will be testing this compound in our sheep model of TBI.
Validating Novel Serum Markers Of Neurodegeneration In Multiple Sclerosis Patients.
Funder
National Health and Medical Research Council
Funding Amount
$516,304.00
Summary
In multiple sclerosis (MS), permanent disability occurs when brain cells known as neurons are damaged following an immune attack. Current treatments reduce the number and severity of immune attacks, but they do not prevent neuron damage or permanent disability in many patients. There is currently no direct way to measure neuron damage in humans, so it is difficult to develop new drugs to prevent it. To address this need, we will trial a new blood test for measuring neuron damage in MS patients.
Neuroimaging After Traumatic Brain Injury: What Best Relates To Outcome?
Funder
National Health and Medical Research Council
Funding Amount
$402,287.00
Summary
Brain injury often results in physical difficulties plus cognitive and behavioural problems. Computerised tomography (CT) is the most used form of scanning used after brain injury but does not reveal as much as Magnetic Resonance Imaging (MRI). Electrovestibulography (EvestG) also offers great potential to reveal brain-related information related to injury and depression. This study aims to assess and compare CT, MRI and EvestG to establish the extent to which each can help in predicting outcome ....Brain injury often results in physical difficulties plus cognitive and behavioural problems. Computerised tomography (CT) is the most used form of scanning used after brain injury but does not reveal as much as Magnetic Resonance Imaging (MRI). Electrovestibulography (EvestG) also offers great potential to reveal brain-related information related to injury and depression. This study aims to assess and compare CT, MRI and EvestG to establish the extent to which each can help in predicting outcome in people who have had a brain injury.Read moreRead less
Connectivity Of Regenerating Axons Following Spinal Cord Injury
Funder
National Health and Medical Research Council
Funding Amount
$586,428.00
Summary
Our objective is to thoroughly investigate the connections made by regenerating nerve fibres in mice which are treated with specific compounds to inhibit scarring as well as with active exercise following spinal cord injury. This will provide evidence of the potential of these compounds as a therapeutic intervention. Understanding how the nervous system rewires following exercise intervention will provide insights as to how new connections can be shaped to ensure optimal recovery of function.
The Role Of Membrane Phospholipids In Regenerative Axonal Fusion
Funder
National Health and Medical Research Council
Funding Amount
$571,950.00
Summary
Injuries to the nervous system can cause lifelong disabilities due to ineffective repair of the damaged nerve fibres. Our previous research has identified a highly efficient mechanism that occurs in nematode worms that allows severed nerves to fuse back together. We will now focus on understanding precisely how this mechanism works, and investigate its utility in repairing nerves that don’t normally utilise this repair mechanism.
Investigation Of The Functional Role Of Antibodies Against Myelin Proteolipid Protein In Multiple Sclerosis
Funder
National Health and Medical Research Council
Funding Amount
$626,174.00
Summary
There is a lot of suggestive evidence that molecules called antibodies might cause a faster progression of disease in people with multiple sclerosis (MS), but this remains to be proven. The proposed study will investigate the mechanisms by which antibodies could hasten MS disease progression. Results of this study will help inform treatment options for people with MS and will also help us to better understand the basic pathogenic mechanisms that can cause MS.