Dependent drug use is associated with a range of physical and mental health problems. However the process by which drug-related changes to the human brain influence behaviours important to remaining abstinent is poorly understood. The current proposal investigates the neural and behavioural effects of drug dependence on cognitive control - responsible for impulse control and decision making - previously implicated in drug dependence.
A New Therapeutic Target For Stress-related Relapse
Funder
National Health and Medical Research Council
Funding Amount
$685,266.00
Summary
Relapse and hazardous drinking represent the most difficult clinical problems in treating patients with alcohol use disorders. We have identified a novel system in the brain for the regulation of stress-induced relapse. Successful completion of this project will indicate improved pharmacotherapeutic strategies for the treatment of alcoholism and drug abuse. Given the scale and costs of substance abuse disorders, improved therapeutic approaches will have immediate and sustained impact.
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.
The Pharmacology And Toxicity Of Synthetic Cannabinoids
Funder
National Health and Medical Research Council
Funding Amount
$744,808.00
Summary
Synthetic cannabinoids (SCs) have been recently linked to many deaths and hospitalizations but there is limited data available that addresses these issues. We have identified SCs which display unprecedented cannabinoid receptor function, unusual selectivity, and SCs with high activity at cannabinoid receptors. This project will define the role of CB receptors in the actions of SCs, and provide an evidence-based rationale for treating SC overdoses.
Mnemonic Segregation: Understanding The Neural Circuitry Of Parkinson’s Disease Dementia.
Funder
National Health and Medical Research Council
Funding Amount
$408,768.00
Summary
To investigate neural circuitry allowing distinct memories to co-exist while minimising interference. Dementia involves a breakdown of this system, where memories are no longer segregated or tagged by environmental features. I also aim to find behavioural techniques which allow memories formed in therapy to generalise to patients’ home environments. By understanding the process of segregating memories we can develop interventions where this fails and manipulate it to improve clinical practice.
Ecstasy use is growing faster throughout the world than than any other drug of abuse. United Nations figures from 2003 show that it is used by more individuals than the combined total of cocaine and heroin users. Australia has the highest per capita use of 'Ecstasy' in the world with rates twice those of North Americal and Europe. As a result of this we also have a high rate of adverse effects. These can be immediate, and lead to death, or long term leading to brain damage and psychopathologies. ....Ecstasy use is growing faster throughout the world than than any other drug of abuse. United Nations figures from 2003 show that it is used by more individuals than the combined total of cocaine and heroin users. Australia has the highest per capita use of 'Ecstasy' in the world with rates twice those of North Americal and Europe. As a result of this we also have a high rate of adverse effects. These can be immediate, and lead to death, or long term leading to brain damage and psychopathologies. So far, no studies have been conducted,anywhere in the world, which have objectively examined the medical effects of 'ecstasy' in the dance clubs where it is used. Because of this, there is a lot of speculation on whether the animal based or hospital based studies are valid and relate to normal recreational use of this drug. This has led to a degree of suspicion by users and health professionals as to the medical problems claimed to be associated with the drug. This project extends a pilot study we undertook which has highlighted that in a recreational setting it is likely that specific individuals are susceptible to damage by 'ecstasy'. The purpose of this project is to examine this in detail, and identify who, and why some young persons are at risk of immediate life threatening outcomes from 'ecstasy' use or may develop brain damage later. The intended outcome is to provide clear evidence of adverse effects and why they occur. This evidence may be used to improve harm minimisation and treatment programs.Read moreRead less
A Controlled Trial Of An Opportunistic Intervention To Reduce Suicide Risk Among Alcohol And Other Substance Misusers
Funder
National Health and Medical Research Council
Funding Amount
$361,000.00
Summary
Hopelessness, depression and suicidal ideation are common among people who misuse alcohol and other substances. A general relationship between alcohol-substance abuse and self-harming - suicidal behaviour has been recognised for decades. From the point of view of diagnosed substance abusers there is a correspondingly high incidence of suicide and self-harm. The lifetime risk for suicide in alcohol dependence is higher than for schizophrenia or affective disorder. Despite the public health and pe ....Hopelessness, depression and suicidal ideation are common among people who misuse alcohol and other substances. A general relationship between alcohol-substance abuse and self-harming - suicidal behaviour has been recognised for decades. From the point of view of diagnosed substance abusers there is a correspondingly high incidence of suicide and self-harm. The lifetime risk for suicide in alcohol dependence is higher than for schizophrenia or affective disorder. Despite the public health and personal burden associated with suicidality, the general lack of skills and focus on management of self-harm in specialised drug and alcohol services is of great concern. In this study, all patients attending drug and alcohol services will be screened for suicide risk, and offered a comprehensive psychological treatment to reduce suicide risk and the use of alcohol and other substances.Read moreRead less
Brain Pathways Underlying Vulnerability To Drug Relapse
Funder
National Health and Medical Research Council
Funding Amount
$416,788.00
Summary
Addiction to drugs is a major health and social burden for Australian society. Once addiction is established, prevention of relapse is the most significant obstacle to successful treatment. Unfortunately, efficacious pharmaceutical options to treat relapse are lacking. By employing an animal model of relapse that accurately reflects drug taking in humans the proposed project aims to advance our understanding of the brain mechanism underlying addiction.
Diversion And Misuse Of Stimulant Medication For ADHD Among Illicit Psychostimulant Users
Funder
National Health and Medical Research Council
Funding Amount
$152,534.00
Summary
The practices of diversion and misuse of pharmaceutical stimulants give serious cause for concern due to their potential to increase the risk of drug toxicity, dependence, and serious adverse health consequences. These practices may be particularly harmful among illicit psychostimulant users. This will be the first to study the nature of diversion and misuse of pharmaceutical stimulants among illicit psychostimulant users and the first to examine the associated correlates and consequences.