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Neuregulin Dependent Neuronal Migration And Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$297,128.00
Summary
Schizophrenia effects 1-100 Australians and is responsible for $2.2 billion in health costs, disables thought and emotion and is devastating to the individual, the family and the community. We need to develop drugs able to reverse the root cause of schizophrenia. We know that schizophrenia is caused by risk genes and environments and impacts brain maturation. We will test how one such gene, neuregulin, acts to derail the normal development of the human cerebral cortex in patients who suffer.
Interactions Between Developmental NMDA Receptor Dysfunction, Genetic Vulnerability And Early-life Stress In Schizophrenia: Studies Of Dysbindin Mutant Mice And Living Individuals At High Risk Of Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$347,457.00
Summary
This project will investigate two key pathways implicated in schizophrenia: glutamatergic (excitatory) neurotransmission and stress signalling. We will study how glutamatergic deficits emerge across postnatal development, in the presence or absence of early-life stress, in a schizophrenia-relevant mouse model, and investigate the interactions between stress and glutamatergic deficits in neuroepithelial cells from living individuals at high risk of schizophrenia.
Gene-environment Interactions Modulating Cortical And Cognitive Dysfunction
Funder
National Health and Medical Research Council
Funding Amount
$618,300.00
Summary
A feature of many major brain disorders, including schizophrenia and dementia, is disruption of cognition. A key brain area impacted in such cognitive disorders is the prefrontal cortex. This project will use clinically translatable touchscreen to understand how this aspect of brain dysfunction causes abnormal cognition. We will investigate the mechanisms involved, using highly innovative approaches, which will contribute to the development of new treatments for such cognitive disorders.
The Role Of TGFB1 In The Pathophysiology Of Late Stage Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$612,961.00
Summary
Schizophrenia is triggered in people with a genetic predisposition by as yet unknown environmental factors. Having shown that changes in gene expression in the brains of people with schizophrenia vary as the disease progresses, this application seeks to understand the changes in a pathway regulated by transforming growth factor ?1 that occur late in the progression of the illness. Understanding the changes in this important pathway could affect how people with schizophrenia are treated as their ....Schizophrenia is triggered in people with a genetic predisposition by as yet unknown environmental factors. Having shown that changes in gene expression in the brains of people with schizophrenia vary as the disease progresses, this application seeks to understand the changes in a pathway regulated by transforming growth factor ?1 that occur late in the progression of the illness. Understanding the changes in this important pathway could affect how people with schizophrenia are treated as their disorder progresses.Read moreRead less
Experience-dependent Cellular Plasticity And Cognitive Deficits In Mouse Models Of Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$444,318.00
Summary
Schizophrenia is a brain disorder involving psychiatric symptoms which include abnormalities of cognitive processes. We are using mouse models to understand the cause of cognitive deficits, at the level of molecules and cells. One discovery we have made is that the generation of new neurons, from adult neural stem cells, are abnormal in a specific brain region of these mice. This research will provide new information regarding the cause of cognitive deficits, and will have implications for the d ....Schizophrenia is a brain disorder involving psychiatric symptoms which include abnormalities of cognitive processes. We are using mouse models to understand the cause of cognitive deficits, at the level of molecules and cells. One discovery we have made is that the generation of new neurons, from adult neural stem cells, are abnormal in a specific brain region of these mice. This research will provide new information regarding the cause of cognitive deficits, and will have implications for the development of new treatments.Read moreRead less
Mechanisms Guiding Pathfinding And Positioning Of Cortical Interneurons
Funder
National Health and Medical Research Council
Funding Amount
$621,606.00
Summary
Brain disorders place an economic and social burden on Australia and the personal costs of these illnesses are immeasurable. Several brain abnormalities are caused from the failure of neurons to position themselves in the correct location when the brain develops. Our study aims to discover how neurons move and what factors influence this process. It provides an understanding of normal brain development, as well as providing insight into what may go wrong in the formation of brain diseases.
The neocortex is the region of the brain that underlies all cognitive functions. Mental disorders, such as schizophrenia, occur when the communication between nerve cells in the neocortex breaks down. We propose to make electrical measurements from the thin processes of neurons that receive input from widely separated neocortical areas to understand how areas of the neocortex are functionally interlinked, with the ultimate aim to identify how these processes are disturbed in mental disorders.
Dissecting The Role Of RYK In Cortical Neuron Specification And Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$1,039,028.00
Summary
Correct production of neuronal subtypes within the neocortex is essential for coordinated brain activity and higher-order functions. Understanding how newborn neurons decide which subtype to adopt is critical as incorrect neuron identity has profound consequences for neocortical function and is associated with schizophrenia and mental disability. We have recently linked one molecule, RYK, to schizophrenia. In this project we will explore how Ryk influences cortical neuron fate.