Glutamate - Adenosine Interactions And Drug-seeking
Funder
National Health and Medical Research Council
Funding Amount
$558,046.00
Summary
Substance abuse is a significant social and economic burdern upon Australian societies and on societies around the world. Treatment remains problematic due to the multi-layer nature of the disease, difficulties with treatment compliance and less than ideal treatment regimes. The present study aims to improve treatments for alcohol and drug abuse using a polypharmacy or multiple therapy approach, using pre-clinical models to determine the utility of this approach.
Ethanol abuse, alcoholism and the medical complications of excessive drinking are now major health problems worldwide. The alcohol dependence syndrome is characterised by tolerance and physical dependence ( the presence of a withdrawal syndrome). Ethanol withdrawal, in addition, to being a health hazard in itself, can act as a negative reinforcer to promote continued ethanol consumption. Alcohol dependence can be considered to result from adaptive changes produced by the chronic presence of etha ....Ethanol abuse, alcoholism and the medical complications of excessive drinking are now major health problems worldwide. The alcohol dependence syndrome is characterised by tolerance and physical dependence ( the presence of a withdrawal syndrome). Ethanol withdrawal, in addition, to being a health hazard in itself, can act as a negative reinforcer to promote continued ethanol consumption. Alcohol dependence can be considered to result from adaptive changes produced by the chronic presence of ethanol in the brain. In this research programme we will learn more about the adaptive changes in the NMDA receptors, the major excitatory receptors in the brain. Current psychopharmacologic management of human alcoholism is limited and suboptimal. We will explore the efficacy of drugs to control behaviours and withdrawal-induced brain cell death. Effective treatment of the syndrome is crucial since withdrawal induces changes, which increases the severity of subsequent withdrawal episodes and its associated brain damage. The outcomes of this research will be a better understand of the underlying changes involved in ethanol dependence and better therapies to ameliorate the withdrawal syndrome.Read moreRead less
Cognitive Enhancement In Schizophrenia Via Selective Oestrogen Receptor Modulator.
Funder
National Health and Medical Research Council
Funding Amount
$396,380.00
Summary
Cognitive dysfunction in schizophrenia is resistant to treatment and related to poor community functioning and quality of life. In spite of the widely appreciated magnitude of the problem, there is still a critical gap in our knowledge concerning treatments to reverse these cognitive deficits. The proposed research is significant because it will clarify the role of hormones and genes in relation to cognitive deficits in schizophrenia and it may help patients improve their level of functioning.
The Role Of P75 Neurotrophin Receptor-mediated Neurodegeneration Of Basal Forebrain Cholinergic Neurons
Funder
National Health and Medical Research Council
Funding Amount
$320,803.00
Summary
Alzheimer’s disease is a progressive neurodegenerative disorder characterized by clinical symptoms of memory deficits and cognitive function. It remains unclear what causes Alzheimer’s disease, but loss of a specific population of brain cells that are critical to cognitive function is generally accepted as a key feature of this condition. The aim of this project is to understand the mechanisms by which this cell loss occurs and how this relates to the loss of brain function.
Plasticity In The Thalamic Reticular Nucleus During Normal And Altered Postnatal Development
Funder
National Health and Medical Research Council
Funding Amount
$392,036.00
Summary
Thalamic centres concerned with vision send information through the thalamic reticular nucleus to multiple cortical areas in which different aspects of the visual world are analysed. These cortical areas in turn send connections back through the reticular nucleus to the thalamus. Cortical function ultimately depends on the correct connections being established between the sensory receptors and the thalamus and between the thalamus and cortex. Far from being merely a relay station of peripheral s ....Thalamic centres concerned with vision send information through the thalamic reticular nucleus to multiple cortical areas in which different aspects of the visual world are analysed. These cortical areas in turn send connections back through the reticular nucleus to the thalamus. Cortical function ultimately depends on the correct connections being established between the sensory receptors and the thalamus and between the thalamus and cortex. Far from being merely a relay station of peripheral sensory information the dorsal thalamus modifies and interacts with the flow of information around the brain. The reticular nucleus forms an integral part of this information flow. How these connections develop and are modified by disturbance to the visual pathway is crucial to our understanding of brain function. To this end, we will study the connections between three areas of the brain concerned with vision, the thalamic reticular nucleus, the thalamus and the visual cortices. We will focus our study on the development of the reticular nucleus and the importance of a normal visual environment in establishing the proper connections between different brain areas. The importance of studying normal and abnormal development is that it can provide a description of the kinds of experience leading to specific types of neural abnormalites. This information tells us the degree to which connections are malleable and is of potential clinical importance.Read moreRead less