Sialyltransferase In The Bipolar And Schizophrenic Brain: Examining The Role Of A Novel Generalised Susceptibility Gene
Funder
National Health and Medical Research Council
Funding Amount
$512,627.00
Summary
Bipolar disorder and schizophrenia are two major psychiatric conditions affecting over 800,000 Australians. We have identified a new gene which contributes to increased risk to developing both bipolar disorder and schizophrenia. We will investigate the function of this gene in normal brain development, and how this function is disrupted in individuals with bipolar disorder and schizophrenia. Understanding the biological cause will help us define better treatments for these severe mental illnesse ....Bipolar disorder and schizophrenia are two major psychiatric conditions affecting over 800,000 Australians. We have identified a new gene which contributes to increased risk to developing both bipolar disorder and schizophrenia. We will investigate the function of this gene in normal brain development, and how this function is disrupted in individuals with bipolar disorder and schizophrenia. Understanding the biological cause will help us define better treatments for these severe mental illnesses.Read moreRead less
Discovering Molecules And Mechanisms Regulating Dendrite Formation
Funder
National Health and Medical Research Council
Funding Amount
$517,989.00
Summary
Dendrites are neuronal projections necessary to receive stimuli from other neurons or the external environment. Abnormalities in dendrite development associate with mental retardation and other human conditions such as Down syndrome, Rett syndrome and Fragile-X syndrome. The studies presented in this proposal, using the powerful genetic and molecular tools available for the nematode C. elegans, will provide new insight into the cellular and molecular mechanisms regulating dendrite development.
Neogenin Regulates Progenitor Division And Interneuron Migration In The Developing Forebrain
Funder
National Health and Medical Research Council
Funding Amount
$526,878.00
Summary
In humans, mutations in genes controlling the production of new neurons in the embryonic brain result in severe disruption of the adult cortex. This project tests the hypothesis that one cell surface molecule, Neogenin, regulates the birth of new neurons and their subsequent travels through the developing brain to form the neocortex. The outcome of these studies will provide fundamental insights into the aberrant processes that underlie human mental retardation, epilepsy, dyslexia and autism.
Wnt-Ryk Signaling In The Establishment Of Major Axon Tracts In The Embryonic Mouse Brain
Funder
National Health and Medical Research Council
Funding Amount
$513,946.00
Summary
The corpus callosum is the major interhemispheric commissure in the human brain, comprising approximately 3 million myelinated fibers which connect homologous regions in the neocortex. To date more than 50 different human congenital syndromes have been described in which the corpus callosum does not form leading to epilepsy and mental retardation. We have identified a new guidance molecule (Ryk) which is crucial for corpus callosum formation. This project aims to dissect that molecular mechanism ....The corpus callosum is the major interhemispheric commissure in the human brain, comprising approximately 3 million myelinated fibers which connect homologous regions in the neocortex. To date more than 50 different human congenital syndromes have been described in which the corpus callosum does not form leading to epilepsy and mental retardation. We have identified a new guidance molecule (Ryk) which is crucial for corpus callosum formation. This project aims to dissect that molecular mechanisms controlling Ryk signaling during corpus callosum development. Our analysis of Ryk function will advance our understanding of the molecular mechanisms underlying the formation of this important commissure.Read moreRead less
Comorbid Affective Disturbance In A Model Of Absence Epilepsy - Shared Causation Linked To Morphological Abnormality?
Funder
National Health and Medical Research Council
Funding Amount
$502,650.00
Summary
People with epilepsy commonly suffer from severe mood disorders, such as depression and anxiety. These disturbances are underdiagnosed and undertreated, and are often more debilitating than the epilepsy. This project will investigate whether treatment of psychiatric disturbance with antidepressants also results in reduced seizure incidence in an animal model of epilepsy. Results generated from the study will provide clinicians strong rationale for aggressive treatment of such mood complaints.
Thrombolysis is a method of dissolving the blood clot that is the cause of the majority of strokes in Australia. The first major trial to demonstrate benefit for this treatment was published some 11 years ago but treatment has not been widely implemented across Australia because of the difficulties in giving treatment within the very tight time window for which treatment is currently approved (patients must get to hospital, be scanned and start treatment within 3 hours of the onset of the stroke ....Thrombolysis is a method of dissolving the blood clot that is the cause of the majority of strokes in Australia. The first major trial to demonstrate benefit for this treatment was published some 11 years ago but treatment has not been widely implemented across Australia because of the difficulties in giving treatment within the very tight time window for which treatment is currently approved (patients must get to hospital, be scanned and start treatment within 3 hours of the onset of the stroke). Other factors which have limited implementation of treatment in Australia are continued debate over the trial data for this treatment as only one of the 5 major trials was positive. In addition, virtually no patients aged over 80 years old were included in the previous trials, and as this age group represents about a third of all stroke in Australia, new data in this age group is required. As a result of the difficulty in giving a treatment within such a tight time window and the ongoing debate about the trial data, few Australians are currently treated and thus the public health impact is negligible. In to change clinical practice, we need reliable data from a large convincing further trial of thrombolysis with the more realistic time window of 6 hours. The Third International Stroke Trial (IST-3) is a large international collaborative effort to determine whether thrombolysis treatment offered to a wider range of patients up to 6 hours from stroke onset results in an increase in long-term independent survival. Data from such a trial is most likely to change clinical practice and lead to an important public health benefit.Read moreRead less
Development Of A Scorpion Toxin For Tumour Imaging
Funder
National Health and Medical Research Council
Funding Amount
$529,577.00
Summary
The aim of this project is to develop a tool for visualising tumours during surgery. Surgical removal of tumours remains the foundation of cancer treatment, but the ability to distinguish the margin between cancerous and healthy cells is imprecise. We will explore the potential of a scorpion toxin that selectively targets cancer cells, as a tumour imaging agent. This project has the potential to dramatically enhance patient survival as a result of improving treatments for cancer.