Development Of A Diagnostic Test For Bipolar Disorder (BD)
Funder
National Health and Medical Research Council
Funding Amount
$140,330.00
Summary
A unique test that monitors the rate of switching between the hemispheres of the brain in response to visual stimuli has been devised. A patent application covers an apparatus and test to measure the switching rate between the hemispheres and the way in which such measurements can be used as a means to diagnose bipolar disorder (BD). BD, also called manic depression, is a form of depression that currently affects over six million people worldwide with about three million in the USA alone. The co ....A unique test that monitors the rate of switching between the hemispheres of the brain in response to visual stimuli has been devised. A patent application covers an apparatus and test to measure the switching rate between the hemispheres and the way in which such measurements can be used as a means to diagnose bipolar disorder (BD). BD, also called manic depression, is a form of depression that currently affects over six million people worldwide with about three million in the USA alone. The condition has phases of mania and depression and periods of remittance. Full cycles of BD can occur as many as three times a year and for many patients, this is a lifelong condition. BD is effectively treated, once it is diagnosed. It is estimated that 20% of sufferers go undiagnosed and many more are misdiagnosed. The cost of mis- or non-diagnosis is measured by suicides, the financial burden on society with health care, loss of productivity etc, effects on family and associates, crime, etc. Diagnosis to date is achieved mainly by subjective means such as questionnaires. These instruments do not conclusively separate BD from other forms of depression and schizophrenia, for which treatment is quite different. Nor do they allow for factors such as substance abuse and other medical conditions that the patient may be suffering. BD is hereditary with the slow hemispheric switch rate being an indicator of the genetic trait. This phenomenon allows for an objective test for BD, even if an individual has not had an episode of BD. The slow switch allows relatively easy separation of a BD patient from those exhibiting symptoms that may have other causes.Read moreRead less
An Investigation Of The Role Of Gene-environment Interactions And Epigenetics In Depression: Nature Combined With Nurture.
Funder
National Health and Medical Research Council
Funding Amount
$337,602.00
Summary
Depression is one of the biggest public health problems, yet the causes remain largely unknown. This study aims to determine how environmental factors can combine with particular genes to increases an individual’s risk of depression. Environmental factors can also cause modifications to genes which can affect an individual’s health. This study will thus also examine whether women with post-natal depression and their children have different gene modifications than those without depression.
The Diamond Cohort Study- Examining Depressive Symptoms In Primary Care
Funder
National Health and Medical Research Council
Funding Amount
$570,886.00
Summary
Depression is the single largest cause of disability for people in Australia. It is mainly managed in general practice-primary care, yet many people experiencing depression go unrecognised by their family doctor or general practitioner (GP). Some people, even when given treatment, remain depressed. Guides on how to manage depression have been mainly based upon people attending psychiatrists and hospitals. In addition, there have been a number of large studies overseas testing new ways of helping ....Depression is the single largest cause of disability for people in Australia. It is mainly managed in general practice-primary care, yet many people experiencing depression go unrecognised by their family doctor or general practitioner (GP). Some people, even when given treatment, remain depressed. Guides on how to manage depression have been mainly based upon people attending psychiatrists and hospitals. In addition, there have been a number of large studies overseas testing new ways of helping people with depression. Unfortunately, they do not seem any better than usual care by a GP. We are currently funded by the NHMRC for diamond 1 to follow 800 people to investigate the factors from the patient's and doctor's point of view that are likely to aid recovery from depression, and to detail the way in which people are cared for in the primary health care system. There is increasing research showing that depression is a chronic and relapsing condition and that a one-year follow-up, whilst longer than most previous studies, will capture only a small glimpse of the health service use and relapse patterns of the patients enrolled in our study. In this application, we request funding to continue to follow participants. diamond 2 aims to explore the patient characteristics and health service use patterns of patients who experience persistent major depression with patients who experience a single episode of depression within a 3-year period. We will use the data gathered to develop models that predict recovery-relapse-persistence of depression. Such models will enable us to develop guidelines and design interventions that better target those at risk of continuing and disabling illness. This work will be of international significance and has the potential to influence the entire primary mental health care system and contribute to substantial system change.Read moreRead less
Understanding The Molecular Basis Of Bipolar Affective Disorder
Funder
National Health and Medical Research Council
Funding Amount
$812,250.00
Summary
Bipolar disorder (manic depressive illness) is a severe mood disorder, with a lifetime prevalence of up to 1.6%. The illness is characterised by aberrant mood swings resulting in periods of mania and depression with reversion to normal behaviour between episodes. The condition has a severe impact on sufferers, being demonstrated to be the sixth most disabling disorder in the WHO Global Burden of Disease report and increasing the risk of suicide fifteen-fold. There is a pressing need to define mo ....Bipolar disorder (manic depressive illness) is a severe mood disorder, with a lifetime prevalence of up to 1.6%. The illness is characterised by aberrant mood swings resulting in periods of mania and depression with reversion to normal behaviour between episodes. The condition has a severe impact on sufferers, being demonstrated to be the sixth most disabling disorder in the WHO Global Burden of Disease report and increasing the risk of suicide fifteen-fold. There is a pressing need to define more clearly the biological basis of bipolar disorder as a necessary prerequisite to improved diagnosis and treatment. The underlying causes of bipolar disorder remain unknown. However, family studies reveal the high heritability of bipolar disorder and this familial clustering provides an opportunity to use genetic approaches to identify the predisposing genes. The long-term aim of our research is to investigate the biology of those genes that either cause or predispose to bipolar disorder. We have previously reported strong evidence for a novel bipolar disorder susceptibility gene on chromosome 4, a finding which has subsequently been reproduced in several independent studies. Consequently, we hypothesise that there is a gene located on chromosome 4 that predisposes to bipolar disorder. The aim of this proposal is to identify the chromosome 4 bipolar susceptibility gene and understand how the gene causes bipolar disorder. Identifying the genes responsible for bipolar disorder will allow us to define and understand the biological basis of this severe psychiatric condition. This will ultimately lead to major improvements in the ability to diagnose, treat and prevent the illness.Read moreRead less
Pubertal Timing, Brain Development And Mental Health In Adolescence
Funder
National Health and Medical Research Council
Funding Amount
$786,976.00
Summary
Early timing of puberty is known to be associated with future mental health problems. This study aims to investigate whether children who go through adrenarche (an earlier phase of maturation) early are at risk for poor mental health during adolescence, and whether abnormal brain development is responsible for linking early adrenarche and mental health outcomes. The results of this research will have implications for the early detection of children at risk for mental health problems.
The Diamond Cohort Study - Long Term Outcomes Of Depressive Symptoms In Primary Care
Funder
National Health and Medical Research Council
Funding Amount
$567,538.00
Summary
The diamond study follows what happens to almost 800 people with depressive symptoms whom attend general practice for care over 5 years of their life. This study will map the severity of depressive symptoms, life circumstances, use of health care services and treatments and allow us to understand factors associated with relapse and recovery from depression in order to improve care. This will assist us to develop models of care that better suit the needs of people experiencing depressive symptoms ....The diamond study follows what happens to almost 800 people with depressive symptoms whom attend general practice for care over 5 years of their life. This study will map the severity of depressive symptoms, life circumstances, use of health care services and treatments and allow us to understand factors associated with relapse and recovery from depression in order to improve care. This will assist us to develop models of care that better suit the needs of people experiencing depressive symptoms.Read moreRead less