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Vulnerability to cocaine use: discovering common mechanisms conserved across animal phyla. Drug abuse costs Australia an estimated $ 20 billion each year, and research is urgently needed to understand how drugs cause long-term behavioural dysfunction. Our research will identify the basal cellular mechanisms underlying drug abuse and addiction, which are likely to be the best targets for therapies to prevent and cure addiction. Our findings are also relevant to other neuropsychiatric disorders r ....Vulnerability to cocaine use: discovering common mechanisms conserved across animal phyla. Drug abuse costs Australia an estimated $ 20 billion each year, and research is urgently needed to understand how drugs cause long-term behavioural dysfunction. Our research will identify the basal cellular mechanisms underlying drug abuse and addiction, which are likely to be the best targets for therapies to prevent and cure addiction. Our findings are also relevant to other neuropsychiatric disorders related to drug abuse (e.g. depression, anxiety) that are on the increase in Australia. Our work will enhance Australia's reputation for neuroscience research, and will provide training for students in neuropharmacology and molecular neurobiology.Read moreRead less
Decoding Mechanisms Of Brain-intestinal Communication
Funder
National Health and Medical Research Council
Funding Amount
$640,210.00
Summary
Obesity is a worldwide concern to human health. Research into how fat is regulated in the body may provide new therapeutic options. It is not well understood how signals from the brain control fat storage. We have recently identified a gene that is important for the communication between the brain and the intestine in the control of fat levels. As such, our work will enable us to better understand this phenomenon.
Neurological cell replacement therapies: improving outcomes by matching developmental profiles of transplanted cells with the damaged brain area. Stem cell transplantation offers a way to replace nerve cells lost due to acute CNS injury or chronic degenerative conditions such as Parkinson's Disease. However, to date, results have been disappointing because of poor differentiation, survival and integration of stem cells confounded by ethical issues associated with the use of embryos as the source ....Neurological cell replacement therapies: improving outcomes by matching developmental profiles of transplanted cells with the damaged brain area. Stem cell transplantation offers a way to replace nerve cells lost due to acute CNS injury or chronic degenerative conditions such as Parkinson's Disease. However, to date, results have been disappointing because of poor differentiation, survival and integration of stem cells confounded by ethical issues associated with the use of embryos as the source of stem cells. The experiments conducted in this study will provide strategies to improve the efficacy of stem cell transplantation into the damaged CNS as well as developing the use of autologous bone marrow stem cells for repair. Outcomes will be improved transplant methodologies and expertise for the bio-technology industry. Read moreRead less
Massive Parallel Sequencing In The Genetics Of Epilepsy
Funder
National Health and Medical Research Council
Funding Amount
$451,716.00
Summary
Epilepsy is a serious disorder which affects approximately 2% of the population at some stage in their life and around 30% of patients do not gain adequate control of their seizures with medications presently available. Approximately 70% of epilepsy in inherited and so far the majority of the genetic causes are yet to be discovered. My group aims to identify new epilepsy genes. This leads to improved diagnosis, treatment and counseling for patients and increased understanding of the biological m ....Epilepsy is a serious disorder which affects approximately 2% of the population at some stage in their life and around 30% of patients do not gain adequate control of their seizures with medications presently available. Approximately 70% of epilepsy in inherited and so far the majority of the genetic causes are yet to be discovered. My group aims to identify new epilepsy genes. This leads to improved diagnosis, treatment and counseling for patients and increased understanding of the biological mechanisms underlying seizures.Read moreRead less
How do interactions between axon guidance molecules bring about directed axon growth? This project deals with a fundamental, yet poorly understood biological problem at the cutting edge of international science - how axons navigate to their targets. A better understanding of this basic biological process will greatly assist the development of therapies to treat a wide range of clinical conditions in which axonal connections between neurons are disrupted by trauma or disease.
Olfactory signal transduction in Drosophila melanogaster. This project will strengthen Australia's research capabilities in the areas of molecular neurobiology and neurogenetics. The project will equip students with the intellectual and technical skills needed to work in priority areas such as genomics and biotechnology, as well as in medical and agricultural research, and education. The research has possible long term applications in modifying the behaviour of insects of agricultural or medical ....Olfactory signal transduction in Drosophila melanogaster. This project will strengthen Australia's research capabilities in the areas of molecular neurobiology and neurogenetics. The project will equip students with the intellectual and technical skills needed to work in priority areas such as genomics and biotechnology, as well as in medical and agricultural research, and education. The research has possible long term applications in modifying the behaviour of insects of agricultural or medical importance. For example, by inhibiting the ability of insects to perceive specific odours it may ultimately be possible to prevent insects that carry disease from identifying target animals, or plant pests from locating their host plants.Read moreRead less
Olfactory signalling and coding in Drosophila and other insects. Animals rely on olfactory cues to detect food, danger, and others of the same species. The olfactory systems of Drosophila and other insects are simpler than those of mammals, yet complex enough to offer fascinating systems for studying neural information processing. This project aims to investigate the role of the Drosophila odorant receptors in olfactory coding, and to use multiple approaches to isolate components of the poorly u ....Olfactory signalling and coding in Drosophila and other insects. Animals rely on olfactory cues to detect food, danger, and others of the same species. The olfactory systems of Drosophila and other insects are simpler than those of mammals, yet complex enough to offer fascinating systems for studying neural information processing. This project aims to investigate the role of the Drosophila odorant receptors in olfactory coding, and to use multiple approaches to isolate components of the poorly understood insect olfactory signal transduction pathway. In addition, the role of the NO/cGMP pathway in olfactory signalling will be studied using an olfactory mutant that has nitric oxide synthase defects.Read moreRead less
Neurons in the two hemispheres of the brain make connections with each other via a large fibre tract called the corpus callosum. In over fifty different human congenital syndromes the corpus callosum fails to form properly. Such syndromes, which include Aicardi syndrome, Andermann syndrome, Shapiro syndrome and Acrocallosal syndrome, can result in mental retardation, seizures, lack of motor coordination and ocular abnormalities in children. Our data on both mouse and human brain development show ....Neurons in the two hemispheres of the brain make connections with each other via a large fibre tract called the corpus callosum. In over fifty different human congenital syndromes the corpus callosum fails to form properly. Such syndromes, which include Aicardi syndrome, Andermann syndrome, Shapiro syndrome and Acrocallosal syndrome, can result in mental retardation, seizures, lack of motor coordination and ocular abnormalities in children. Our data on both mouse and human brain development show that the mouse is an excellent model system for understanding how the brain becomes wired up during development and what may go wrong in these disorders. Here we investigate the role of a family of genes called nuclear factor one (Nfi) genes in brain development. When mutated in mice, members of this gene family, principally Nfia and Nfib, cause severe malformations of the brain. The phenotype inlcudes a failure to form some midline glial populations, the expansion of the cingulate cortex and loss of the corpus callosum. The propoer formation of midline glial populations and the cingulate cortex are essential to callosal fomration and correct brain wiring. Defects in brain wiring in the cingulate cortex during development may underlie disorders such as schizophrenia, bipolar disorder and depression. In this project we will address the mechanism of function underlying the control of brain development by the Nfi genes. The expected outcomes of this research are to identify new mechanisms and genetic pathways critical to the formation of connections between the two sides of the brain and proper formation of the cingulate cortex. These results will improve our understanding of how the brain forms and what mechanisms may be disrupted during development that result in neurological and cognitive deficits in children and adults.Read moreRead less
Perceptual suppression mechanisms in the Drosophila brain. This project will investigate common processes underlying three means to losing conscious perception: selective attention, sleep and general anaesthesia. By studying these suppression mechanisms in a genetic model, the fly Drosophila melanogaster, fundamental processes will be highlighted that are required in the brain for maintaining perception in general.