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Delineating The Mechanism Of Amyloid Beta Toxicity
Funder
National Health and Medical Research Council
Funding Amount
$565,242.00
Summary
Alzheimer’s disease and beta amyloid toxicity: Alzheimer’s disease (AD) is the most common form of dementia and is characterized by progressive memory loss, confusion, and cognitive deficits. In 2011, an estimated 269,000 Australians are currently living with dementia and without a significant medical breakthrough soon, it is anticipated that this will rise to about 981,000 by 2050
Ecstasy, Methamphetamine And Their Combination: Assessment Of Adverse Effects
Funder
National Health and Medical Research Council
Funding Amount
$384,250.00
Summary
MDMA (Ecstasy) and Methamphetamine (METH) are popular party drugs that are frequently used by young Australians. Health problems associated with MDMA and METH use are (1) many people suffer complications arising from the high body temperature (hyperthermia) that these drugs produce, and (2) MDMA and METH may both cause long-term loss of key neurotransmitters in the brain. This effect on the brain may well lead to psychological problems such as anxiety, depression, increased impulsive behaviour a ....MDMA (Ecstasy) and Methamphetamine (METH) are popular party drugs that are frequently used by young Australians. Health problems associated with MDMA and METH use are (1) many people suffer complications arising from the high body temperature (hyperthermia) that these drugs produce, and (2) MDMA and METH may both cause long-term loss of key neurotransmitters in the brain. This effect on the brain may well lead to psychological problems such as anxiety, depression, increased impulsive behaviour and memory impairment. However the link between MDMA and METH use and subsequent brain damage is still very controversial. Recently, we have found that when MDMA and METH are combined, a particularly toxic effect is seen with very high body temperatures and lasting adverse effects on mood and brain function. This is a major cause for concern because of evidence that many Australian drug users are combining METH and MDMA on a regular basis. This project will investigate the short and long-term effects of MDMA, METH and METH-MDMA combinations. Phase 1 is aimed at investigating whether different doses of the drugs lead to lasting changes in mood, behaviour and brain function and to compare the relative toxicity of the three treatments. Phase 2 will determine whether lack of fluid intake, high environmental temperatures and advanced age are risk factors in determining the toxicity of MDMA and METH. Phase 3 will assess whether the toxicity of these drug treatments depends upon whether an animal takes the drugs voluntarily or whether they are injected with the drug by the experimenter. The final part of the project will use a wide variety of advanced techniques to track the brain damage caused by these drug treatments given under a range of conditions. The significance of this project will be in increasing our understanding of how MDMA and METH affect the brain and behaviour and how the harms posed by these drugs may be predicted and therefore minimised.Read moreRead less
Repair Of The Nigrostriatal Pathway By Phenotype Shift Of Dopamine Neurones
Funder
National Health and Medical Research Council
Funding Amount
$561,558.00
Summary
Repairing the injured brain will depend on developing new cells that can form the correct cell type, make the right connections and be incorporated into normal brain circuitry. We have found that dopamine cells, which are lost in Parkinson's Disease, are being renewed in the adult rodent brain. This study is directed at finding factors that control this process and to exploit these factors therapeutically. We provide evidence that this can be used to treat Parkinson's Disease.