An Analysis Of A Model Of Movement Disorder Lacking D1R Positive Neurons.
Funder
National Health and Medical Research Council
Funding Amount
$346,446.00
Summary
The experiments outlined in this project proposal are aimed at further characterizing a genetically engineered mouse the generation of which was originally funded by the Australian NH and MRC. The mutant mouse suffers from the loss of brain cells in a part of the brain called the striatum. The mouse model will allow us to understand how damage to brain structures cause disabling human neurodegenerative diseases such as Parkinsonism and Huntington's disease. The mouse model is unique as the mice ....The experiments outlined in this project proposal are aimed at further characterizing a genetically engineered mouse the generation of which was originally funded by the Australian NH and MRC. The mutant mouse suffers from the loss of brain cells in a part of the brain called the striatum. The mouse model will allow us to understand how damage to brain structures cause disabling human neurodegenerative diseases such as Parkinsonism and Huntington's disease. The mouse model is unique as the mice suffer from the same type of movement abnormalities which afflict individuals with this spectrum of neurological illnesses. We will look at both structural changes in the brain as well as brain function as defined by the behavioural responses of the damaged brain to drug administration. The experiments also focus on the ultimate correction of the neurological deficits by transplantation of purified nerve cell progenitor cells.Read moreRead less
Regulation Of Regeneration Of Dopaminergic Neurones In The Substantia Nigra
Funder
National Health and Medical Research Council
Funding Amount
$115,880.00
Summary
Parkinson's Disease (PD) results from the progressive loss of brain cells in the part of the brain called substantia nigra. These brain cells contain a chemical called Dopamine (DA). The symptoms of Parkinson's disease arise when about 80% these DA neurones are lost suggesting that some form of compensation must occur up to this point. In previous studies we have demonstrated that one mechanism for this compensation is through sprouting or branching of the remaining neurones. We have preliminary ....Parkinson's Disease (PD) results from the progressive loss of brain cells in the part of the brain called substantia nigra. These brain cells contain a chemical called Dopamine (DA). The symptoms of Parkinson's disease arise when about 80% these DA neurones are lost suggesting that some form of compensation must occur up to this point. In previous studies we have demonstrated that one mechanism for this compensation is through sprouting or branching of the remaining neurones. We have preliminary evidence about the way this is sprouting and regeneration is controlled. The aim of this grant is to explore in detail the mechanisms whereby sprouting is induced and regulated. The significance of this study is that it may provide insights into the way in which regulation of regeneration of the nervous system is controlled. It has specific applications to therapies for Parkinson's disease.Read moreRead less
Parkinson's Disease is caused by injury to a group of brain cells called the Basal Ganglia. Our current ideas about how this part of the brain works is dominated by a well know theory. This theory requires that the output pathway of the basal ganglia to have a negative or inhibitory influence on its target. However there are numerous reasons why this would be unlikely, including some recent evidence from experiments in our laboratory. The purpose of this study is to undertake an extensive re exa ....Parkinson's Disease is caused by injury to a group of brain cells called the Basal Ganglia. Our current ideas about how this part of the brain works is dominated by a well know theory. This theory requires that the output pathway of the basal ganglia to have a negative or inhibitory influence on its target. However there are numerous reasons why this would be unlikely, including some recent evidence from experiments in our laboratory. The purpose of this study is to undertake an extensive re examination of the output paths of the Basal Ganglia. If our suspicions are correct, it will lead to a review of the whole way in which we think the Basal Ganglia works.Read moreRead less