This is an application for reappointment as a Principal Research Fellow. My primary area of research is preclinical studies of addiction, with a particular emphasis on relapse. I am increasingly engaged in translational studies.
I am a neuroscientist, studying fundamental mechanisms related to addiction. A major feature of my research is the neuropharmacological characterisation of potential novel therapeutic strategies to combat drug-seeking behaviour.
Investigation Of Novel Therapeutic Targets For The Treatment Of Drug Addiction
Funder
National Health and Medical Research Council
Funding Amount
$294,892.00
Summary
Drug abuse remains one of the world’s leading health care problems and the current drugs available to treat drug addiction are largely ineffective. This project aims to investigate the potential of a novel therapeutic target for the treatment of drug addiction with has the capacity for substantially reduced off-target effects.
Brain damage resulting from long-term alcohol abuse is localized to discrete regions of the brain and selectively impairs key neuropsychological functions. Alcohol misuse affects processes that control excitability in the brain, leading to the over-stimulation of brain cells. When this continues for long periods the cells are likely to die and most alcoholics misuse alcohol for most of their adult lives. We will study the human brain s capacity to use and respond to glutamate, its major natural ....Brain damage resulting from long-term alcohol abuse is localized to discrete regions of the brain and selectively impairs key neuropsychological functions. Alcohol misuse affects processes that control excitability in the brain, leading to the over-stimulation of brain cells. When this continues for long periods the cells are likely to die and most alcoholics misuse alcohol for most of their adult lives. We will study the human brain s capacity to use and respond to glutamate, its major natural excitant, in the regions that are selectively damaged by alcoholism. How these capacities are affected by heredity, and by diseases commonly associated with alcoholism such as cirrhosis of the liver, will also be explored. If we can understand how selective brain damage occurs in alcoholics we will be better able to devise new drug therapies to combat and prevent it. As well, localized brain damage is a feature of many neurological diseases, so the study will provide a general model of disease mechanisms.Read moreRead less
Unraveling The Neural Circuitry Of Context-induced Relapse To Alcohol Seeking After Punishment-imposed Abstinence
Funder
National Health and Medical Research Council
Funding Amount
$528,016.00
Summary
Alcohol use disorder (alcoholism) causes significant social and economic costs to Australian society. Alcoholism is a brain disease, and relapse during abstinence is the main problem in successful treatment. In this project, we use an animal model of relapse to alcohol seeking after abstinence imposed by a negative consequence (punishment). This project will identify brain regions which can be targeted in future clinical studies in human alcoholics.
I am a neuroscientist, studying fundamental mechanisms related to addiction. A major feature of my research is the neuropharmacological characterisation of potential novel therapeutic strategies to combat drug-seeking behaviour
Salt (sodium) is an essential electrolyte. Our convincing and complementary findings provide compelling evidence for a link between evolutionarily ancient “instincts” and substance abuse. This proposal is translational, including studies in opiate dependent humans. Our studies will establish how and where in the brain endogenous opioids are implicated in the gratification of salt appetite, how salt appetite is altered in opiate dependency and if salt appetite recovers following opiate withdrawal
Determining Neuronal Connections Involved In Parkinson's Disease And Cocaine Addiction
Funder
National Health and Medical Research Council
Funding Amount
$343,300.00
Summary
Addictive behaviours in response to cocaine use and fine motor coordination that is affected in Parkinson's disease are both controlled by the same type of cells/neurons, i.e., dopamine neurons. However, the circuitry of these neurons varies from where they originate and the type of connections they make. By understanding the neuronal circuitry of these two circuitries in concert we will be able to gain important insight into their roles in adaptive and pathological brain function.
Shaken Baby Syndrome: Characterization Of A Model And Evaluation Of Novel Pharmacological Therapies
Funder
National Health and Medical Research Council
Funding Amount
$412,460.00
Summary
Shaken baby syndrome is a form of traumatic brain injury in infants less than 2 years of age. It results in death in 10-40 % of cases, and neurological problems in survivors. No treatment exists largely because there is no well characterized model of the syndrome that replicates the human situation. This study will fully characterize our newly developed model of shaken baby syndrome and examine the effectiveness of a novel interventional strategy targeting brain swelling.
Studying The Interaction Of Reelin Deficiency And Environmental Factors In The Development Of Schizophrenia Using Animal Behavioural Models
Funder
National Health and Medical Research Council
Funding Amount
$438,695.00
Summary
Schizophrenia is caused by an interaction of genetic predisposition and environmental risk factors such as stress or drug abuse. Reelin is a protein involved in the normal development of the brain but its levels are markedly reduced in schizophrenia. We will use mice with low levels of reelin in their brain and assess the effect of environmental stress and drugs of abuse. These studies could elucidate gene-environment interaction in schizophrenia and lead to new treatment strategies.