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A Breakdown Of Cortical Homeostasis In Depression: A Focus On The Anterior Cingulate
Funder
National Health and Medical Research Council
Funding Amount
$625,629.00
Summary
Major depressive disorders affect 20% of the Australian population. Some symptoms of major depressive disorders arise because of a dysfunction of the human brain, particularly the cortex. Our studies show there are biochemical changes in the anterior cingulate cortex in people with mood disorders. We will now extend our studies to show there is a breakdown in the balance between neurotransmitter and neuroinflammation pathways in the anterior cingulate cortex in major depressive disorders.
A Study Of Muscarinic Receptors In Brain Tissue Obtained Postmortem From Subjects With Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$354,810.00
Summary
The research outlined in this proposal will examine the molecular make up of certain regions of the human brain and determine if components within those regions are altered in tissue from subjects with schizophrenia. Schizophrenia is a serious psychiatric illness that affects approximately 1% of the Australian population and the research described in this proposal seeks to help understand the cause of the illness and-or to assist in the development of new drugs with which to treat the illness. T ....The research outlined in this proposal will examine the molecular make up of certain regions of the human brain and determine if components within those regions are altered in tissue from subjects with schizophrenia. Schizophrenia is a serious psychiatric illness that affects approximately 1% of the Australian population and the research described in this proposal seeks to help understand the cause of the illness and-or to assist in the development of new drugs with which to treat the illness. The goal of the research outlined in this proposal is to determine if there are changes in specific molecules in the brain, termed muscarinic receptors. The muscarinic receptors are one way that a chemical in the brain called acetylcholine can communicate with the nerve cells in the brain. Acetylcholine is known to control important functions of the brain such as in memory, cognition and learning, all of these functions are thought to be affected in schizophrenia. Importantly, the control of all these functions involve muscarinic receptors and therefore, changes in those receptors could well produce some of the symptoms of schizophrenia. We now wish to extend our early studies which suggest there may be changes in muscarinic receptors in the brain of subjects with schizophrenia to determine which of the 5 muscarinic receptors are affected in which region of the brain by the pathology of the illness. From our existing data, we would predict that these studies will add weight to the argument that muscarinic receptors are altered in schizophrenia and provide vital information as to how drugs that target these receptors may be used to treat the illness.Read moreRead less
Novel Approaches To The Targeting Of GPCRs Towards Improved Treatment Of Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$415,218.00
Summary
The focus of these studies are two important types of brain proteins that have been implicated in various symptoms associated with schizophrenia. The aim is to exploit two emerging paradigms of drug action at these brain proteins that will allow us to target them in a more selective manner. In particular, these studies will provide a starting point for safer, more effective treatments for schizophrenia.
Understanding Novel Drug Binding Pockets At G Protein-coupled Receptors
Funder
National Health and Medical Research Council
Funding Amount
$425,538.00
Summary
Cell-surface proteins exhibit multiple secondary binding sites for which only synthetic drugs have been identified so far. My hypothesis is that these secondary binding sites are common to most proteins because they are primarily targeted by largely yet unidentified endogenously released molecules that can modify the biology of these proteins.
Characterising The Muscarinic Receptor Deficit In Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$476,543.00
Summary
Post-mortem examination of the brains of schizophrenia patients reveals a substantial loss of muscarinic receptors. This is likely to be clinically very important if it can also be confirmed in living patients. Having developed a new scanning technique that shows muscarinic receptors in the living brain, we will now scan patients with schizophrenia to see if they also show this receptor loss, and see how it affects them. This could open new doors to understanding and treating the disease.
Muscarinic Receptor Signalling, Transglutaminase And Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$518,210.00
Summary
Diabetes is a major and increasing cuase of death and disability in our society. This studies aims to understand the cellular and molecular mechaisms controlling insulin secretion from the pancreas, since defects in this secretion are involved in causing diabetes. The proposed studies are of relevance to both juvenile and adult-onset diabetes, and may lead to new treatment modalities, as well as potentially being relevant to the use of pencreatic islet cell transplantation in the treatment of di ....Diabetes is a major and increasing cuase of death and disability in our society. This studies aims to understand the cellular and molecular mechaisms controlling insulin secretion from the pancreas, since defects in this secretion are involved in causing diabetes. The proposed studies are of relevance to both juvenile and adult-onset diabetes, and may lead to new treatment modalities, as well as potentially being relevant to the use of pencreatic islet cell transplantation in the treatment of diabetes.Read moreRead less
Rational Co-targeting Of G Protein-coupled Receptors As A Novel Approach Towards Treating Neuropsychiatric Disorders
Funder
National Health and Medical Research Council
Funding Amount
$620,399.00
Summary
Schizophrenia is a common mental disorder with multiple symptoms. Current therapeutics only treat some of these symptoms. This project will focus on two important brain proteins implicated in schizophrenia. With the hypothesis that the rational targeting of these two proteins will lead to the design of more effective medicines for treatment of schizophrenia we will develop novel methods to selectively and simultaneously and target these two proteins.