The brain plays a major role in the overconsumption of high fat/high sugar foods and this contributes to obesity but it receives little attention when it comes to developing novel treatments. My lab showed that a FDA-approved smoking cessation medication, that is a nicotinic receptor modulator, decreased the overconsumption of sugar. This project aims are to identify which nicotinic receptors and brain circuits are involved in the overconsumption of sucrose to improve treatments for obesity.
Translating Neuroscience Into Treatments And Public Health Policies For Addictive Behaviours
Funder
National Health and Medical Research Council
Funding Amount
$425,048.00
Summary
Advances from neuroscience promise to revolutionise our ability to treat and prevent addictive disorders such as gambling, overeating and drug addiction. These developments may also have unexpected clinical consequences, undermine individuals’ belief in their control over their behaviour or increase stigma and discrimination. This project will develop clinical guidelines and public health policy recommendations to ensure that we realise the benefits of neuroscience while minimising social harms.
Contextual Control Over Relapse To Drug Seeking: Behavioural And Neural Mechanisms.
Funder
National Health and Medical Research Council
Funding Amount
$395,750.00
Summary
Drug addiction is a major health and societal problem in Australia. It is consistently associated with an adverse impact upon individual users, their families, and communities. Prolonged drug use is associated with increased rates of physical problems (e.g., cardiovascular disease), mental health problems (e.g., depression and anxiety), and criminal involvement (e.g., property crimes and incarceration). A defining feature of drug addiction is that it is a chronically relapsing condition. Between ....Drug addiction is a major health and societal problem in Australia. It is consistently associated with an adverse impact upon individual users, their families, and communities. Prolonged drug use is associated with increased rates of physical problems (e.g., cardiovascular disease), mental health problems (e.g., depression and anxiety), and criminal involvement (e.g., property crimes and incarceration). A defining feature of drug addiction is that it is a chronically relapsing condition. Between 60-80% of addicts attempting to give up drug taking will relapse to drug taking. The behavioural and brain mechanisms which underpin this persistent propensity to relapse are largely unknown. This project studies the behavioural and brain mechanisms for relapse to drug addiction. This project uses a well validated animal model of drug taking to ask why relapse occurs. It will identify some of the environmental antecedents to relapse and the brain mechanisms which mediate relapse. As such, this project will project will provide important information about relapse to drug addiction and may help identify targets for therapeutic intervention and possibly disrupt the addictive cycle.Read moreRead less
Substance abuse is a significant social and economic burden 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 pre-clinical models to identify and characterize a new brain system implicated in drug-seeking.
Drug addiction is a major health and societal problem in Australia. Relapse is among the most fundamental problems for addicts. This project studies the behavioural and brain mechanisms for relapse to drug seeking. It studies why relapse is more likely in some places than others; the brain mechanisms for this contextual control over relapse; and how relapse to seeking drug rewards is similar to and different from relapse to seeking non-drug rewards.
Anxiety and addiction are disorders with high co-morbidity that present a major worldwide public health concern. Treatment in both cases often involves an approach called extinction which helps to reduce the relapsing nature of these disorders. This grant is designed to examine the role of a specific protein in addiction and anxiety, by virtue of its involvement in the process of extinction.
Minimising Uptake Of E-cigarettes And Encouraging Cessation Among Australian Adolescents And Adults
Funder
National Health and Medical Research Council
Funding Amount
$645,205.00
Summary
Efforts are needed to address the growing use of e-cigarettes among Australians to prevent potential increases in smoking rates and minimise harm. My research aims to: 1. Develop and test a model examining predictors of e-cigarette use and susceptibility to use among adolescents and adults. 2. Develop, implement, and evaluate messages that effectively minimise uptake and encourage cessation of e-cigarette use. 3. Develop resources for stakeholders that provide guidance on managing use.
Drug addiction imposes significant burdens on individual drug users, their families, and communities. This project uses an animal model to identify the brain regions and pathways which mediate extinction of drug seeking and therefore contribute to long-term abstinence from drug-seeking. The work will show how the brain inhibits drug-seeking and will contribute to the important goal of identifying new approaches to preventing relapse to drug-seeking.
Repurposing An Alzheimer’s Trial Drug To Block Relapse In Cocaine Addiction Models
Funder
National Health and Medical Research Council
Funding Amount
$1,050,601.00
Summary
Repeated exposure to drugs of abuse, such as cocaine, alters the reward circuitry of the brain. Enduring changes in the connections between neurons underlie addiction-related behavioural patterns, drug craving and the propensity for relapse after drug withdrawal. The pre-clinical research in this proposal aims to test whether blocking the function of a particular brain protein in mice can prevent relapse in two different paradigms that model cocaine addiction in humans.