THE EFFECTS OF TRANSCRANIAL MAGNETIC STIMULATION (TMS) ON RAT MODELS OF DEPRESSION
Funder
National Health and Medical Research Council
Funding Amount
$204,274.00
Summary
Repetitive Transcranial Magnetic Stimulation (rTMS) is the direct stimulation of the brain by using high field magnetic pulses. It is a new technique that has been demonstrated to have some potential as a treatment of depressive illness and possibly other neuropsychiatric disorders. At this early stage of its investigation, the parameters of stimulation that are most likely to be therapeutic, and its mechanisms of action, are not known. Published studies vary in the frequency, duration and exten ....Repetitive Transcranial Magnetic Stimulation (rTMS) is the direct stimulation of the brain by using high field magnetic pulses. It is a new technique that has been demonstrated to have some potential as a treatment of depressive illness and possibly other neuropsychiatric disorders. At this early stage of its investigation, the parameters of stimulation that are most likely to be therapeutic, and its mechanisms of action, are not known. Published studies vary in the frequency, duration and extent of stimulation, with no firm guidelines about optimal parameters. Empirical study of the relative effects of stimulation at different frequencies, at different numbers of stimuli and for different durations is therefore important for the future development of this treatment. Such an investigation is best carried out in an animal model of depression for both ethical and practical reasons, as such studies in patients would possibly take many years and be extremely difficult to conduct. We propose such a study in rat models of depression which have demonstrated validity and utility in drug research. Rat models have a long track record in developing psychiatric treatments and are cost-effective and of proven value. We also plan to investigate the neuroanatomy of the immediate-early genes induced by TMS and compare it with electroconvulsive shock (ECS) and a tricyclic antidepressant, two established treatments of depression. The results will have implications for future human studies in guiding us toward the optimal parameters for therapeutic effects. They will also enhance our understanding of the mechanism of action of TMS in depression.Read moreRead less
Transdermal Testosterone Therapy: A Potential Treatment For Selective Serotonin Reuptake Inhibitor (SSRI)-associated Sexual Dysfunction In Women
Funder
National Health and Medical Research Council
Funding Amount
$241,351.00
Summary
Female sexual dysfunction (FSD) is frequently reported with selective serotonin reuptake inhibitor (SSRI) therapy and venlafaxine, these being the most common antidepressants used by Australian women. We have shown that testosterone therapy significantly improves sexual function in women with FSD. However SSRI-users have been excluded from these past studies. The aim of this study is to assess the efficacy of transdermal testosterone therapy for treatment of sexual dysfunction associated with SS ....Female sexual dysfunction (FSD) is frequently reported with selective serotonin reuptake inhibitor (SSRI) therapy and venlafaxine, these being the most common antidepressants used by Australian women. We have shown that testosterone therapy significantly improves sexual function in women with FSD. However SSRI-users have been excluded from these past studies. The aim of this study is to assess the efficacy of transdermal testosterone therapy for treatment of sexual dysfunction associated with SSRI therapy.Read moreRead less
A Dietary Intervention In Gestational Diabetes To Reduce Child Obesity: A Randomised Controlled Trial
Funder
National Health and Medical Research Council
Funding Amount
$354,715.00
Summary
Women with gestational diabetes (GDM) whose blood glucose levels (BGL) are not well controlled have a higher chance of giving birth to large babies. These babies are at high risk of becoming overweight children and adults. Preventing child obesity therefore requires appropriate intervention during pregnancy complicated with GDM. This study will determine the ability of specific dietary advice (aimed at reducing maternal BGL) to reduce the risk of large babies in a typical ante-natal setting.
Healthy, Wealthy And Wise: The Long-term Effectiveness Of An Online Universal Program To Prevent Substance Use And Mental Health Problems Among Australian Youth
Funder
National Health and Medical Research Council
Funding Amount
$1,472,709.00
Summary
The proposed study represents a unique opportunity to build on the NHMRC funded Climate Schools Combined (CSC) study, a world-first trial of a combined, internet-delivered school-based approach to preventing substance use, anxiety and depression. Having successfully implemented this trial and followed these students for 3 years, we propose to extend follow-up of this large trial cohort over the critical transition from secondary school into early adulthood.
Using Reward-based Biomarkers To Improve The Early Detection Of Bipolar Disorder In Individuals Seeking Treatment For Depression
Funder
National Health and Medical Research Council
Funding Amount
$366,252.00
Summary
Bipolar disorder is often misdiagnosed as unipolar major depression, which can have disastrous clinical consequences. Emerging evidence indicates that individuals with bipolar disorder show particular dysfunctions within brain regions involved in processing reward. This research will use cutting-edge neuroscience methodologies to investigate reward processing in these two disorders, with the objective of identifying biological markers that help distinguish bipolar from unipolar depression.
How Does Exercise Ameliorate Programming Of Metabolic Dysfunction In Offspring Of Obese Mothers?
Funder
National Health and Medical Research Council
Funding Amount
$524,121.00
Summary
Obesity is a worldwide disease, reflecting an interaction between our environment (diet, physical activity) and genes. We know that a mother's unhealthy diet can predispose offspring to diabetes, and exercise can improve this, but the underlying mechanisms are poorly understood. Here we will examine how exercise can benefit offspring of obese mothers, and test a drug that mimics the effects of exercise. The proposed research will provide insight into ways of reducing the obesity epidemic.
Brain Connectivity Imaging Markers To Confirm Diagnosis For Bipolar Vs. Unipolar Depression – A Connectome Approach.
Funder
National Health and Medical Research Council
Funding Amount
$434,369.00
Summary
Differentiating Bipolar disorders from Unipolar Depression is a major clinical challenge. This misdiagnosis hinders optimal clinical care and has many deleterious consequences such self-harm, increased chances of suicide, poor prognosis, and greater health care costs related to this disorder. This project will provide urgently-needed advance in accurate identification of Bipolar disorders using Magnetic Resonance Imaging and remove one of the key obstacles to accurate diagnosis.
A Cluster RCT Of A Novel Psychological Intervention To Reduce Depression Among At-risk Older Adults Transitioning To Residential Aged Care
Funder
National Health and Medical Research Council
Funding Amount
$893,152.00
Summary
Depression is common in aged care facilities, with many older adults finding the transition extremely difficult. We have developed a simple intervention to help new residents, including those with dementia, to adjust to life in aged care. This program focuses on key aspects of psychological wellbeing, and is designed for widespread use in aged care. We will evaluate the intervention to determine if it is superior to current care approaches in reducing depression and improving quality of life.
Preventing Anxiety, Depression And Substance Use In Adolescents.
Funder
National Health and Medical Research Council
Funding Amount
$1,709,988.00
Summary
Anxiety, depressive and substance use disorders account for three quarters of the disability attributed to mental disorders. Yet we have few models of well-implemented prevention programs for these common disorders. The current proposal addresses this gap by evaluating an innovative internet-based approach to preventing mental health and substance use problems in Australian adolescents.