Intervention For Tobacco Dependence Among People With A Psychotic Illness
Funder
National Health and Medical Research Council
Funding Amount
$387,625.00
Summary
The prevalence of smoking among people with a psychiatric illness, especially schizophrenia, is greater than that in the general population. Exposure to tobacco smoke has been identified as a cause of 32 different diseases as well as a cause of fire injuries. Tobacco smoke is known to contain carcinogens, as well as nicotine and numerous other poisonous substances. An extensive body of scientific evidence shows that active cigarette smoking increases the risk of many different cancers. Smoking r ....The prevalence of smoking among people with a psychiatric illness, especially schizophrenia, is greater than that in the general population. Exposure to tobacco smoke has been identified as a cause of 32 different diseases as well as a cause of fire injuries. Tobacco smoke is known to contain carcinogens, as well as nicotine and numerous other poisonous substances. An extensive body of scientific evidence shows that active cigarette smoking increases the risk of many different cancers. Smoking related diseases rate second in frequency to suicide as the greatest contributor to early mortality in schizophrenia. Popular opinion holds that people with mental illness are lacking in motivation to change their behaviour due to the effects of their mental illness. However, a recent survey of inpatients in a psychiatric hospital in Newcastle, NSW, revealed that over a quarter of smokers were either preparing to quit or cut down on their smoking or already had taken action to reduce their smoking. The present research proposal represents the first large randomised controlled trial of an intervention for tobacco dependence among people with a mental illness. This project will compare the effectiveness of nicotine replacement therapy combined with counselling with a self-help booklet on smoking. The proposed research follows a small clinical study of the feasibility of the intervention and a small randomised controlled trial supported by the Australian Rotary Health Research Fund. The proposed study brings together the expertise of several people across Australia who have experience in treating people with mental illness and drug dependence, including tobacco dependence. The results will inform future clinical interventions for smokers with a mental illness.Read moreRead less
Identifying Malingered Posttraumatic Stress Disorder: Biological Markers for Legal Assessment. Posttraumatic stress disorder (PTSD) is the most common psychiatric disorder that is claimed in compensation claims in Australia. There are currently no reliable means to distinguish malingered from genuine PTSD. This project aims to develop the most accurate means of identifying malingered PTSD by using the most recent technology to index biological responses, including fMRI, in participants with PT ....Identifying Malingered Posttraumatic Stress Disorder: Biological Markers for Legal Assessment. Posttraumatic stress disorder (PTSD) is the most common psychiatric disorder that is claimed in compensation claims in Australia. There are currently no reliable means to distinguish malingered from genuine PTSD. This project aims to develop the most accurate means of identifying malingered PTSD by using the most recent technology to index biological responses, including fMRI, in participants with PTSD, without PTSD, and malingered PTSD. This study will lead to a biological assessment that can objectively index PTSD and be resistant to intentional feigning. These data will significantly enhance legal assessments of PTSD and facilitate compensation resolution.Read moreRead less
Special Research Initiatives - Grant ID: SR0354503
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
The Self and its Disorders: Humanistic, Psychiatric, and Neural Perspectives. Mental disorder fragments the self, distorts its development in adolescence, and obliterates it in old age. Because no one discipline can adequately understand the self and its pathologies, this Initiative aims to bring together researchers from the humanities and the sciences of the mind to investigate what mental disorder can reveal about the nature of the self, and what humanistic approaches to the self can contribu ....The Self and its Disorders: Humanistic, Psychiatric, and Neural Perspectives. Mental disorder fragments the self, distorts its development in adolescence, and obliterates it in old age. Because no one discipline can adequately understand the self and its pathologies, this Initiative aims to bring together researchers from the humanities and the sciences of the mind to investigate what mental disorder can reveal about the nature of the self, and what humanistic approaches to the self can contribute to its scientific study. A better understanding of diminished selfhood in mental disorder will lead to improvements in social policy and thereby to social and financial benefits for the community at large.Read moreRead less
A Randomised Control Trial Of A Group-Based Intervention For Substance Abuse In Psychosis.
Funder
National Health and Medical Research Council
Funding Amount
$345,250.00
Summary
The use of alcohol and illicit substances is common amongst people with psychotic illnesses, and is associated with a poor outcome in terms of severity of symptoms, treatment adherence, work-studies, family cohesion, aggression and quality of life. All this adds significantly to the cost of mental health services and society more broadly. The proposed study aims to refine, pilot, and rigorously evaluate a group-based intervention that targets substance use in such individuals at different stages ....The use of alcohol and illicit substances is common amongst people with psychotic illnesses, and is associated with a poor outcome in terms of severity of symptoms, treatment adherence, work-studies, family cohesion, aggression and quality of life. All this adds significantly to the cost of mental health services and society more broadly. The proposed study aims to refine, pilot, and rigorously evaluate a group-based intervention that targets substance use in such individuals at different stages of their illness, and within a number of different treatment settings. The intervention will be informed by an enhanced understanding of the motivations for substance use in people with psychotic illnesses The specific aims are to: Refine, implement and evaluate, using a controlled experimental design, a novel group-based intervention for reducing substance abuse comorbidity in people with psychotic disorders; Determine reasons for substance use by these individuals, to inform the intervention procedures; Pilot the intervention in a series of different treatment settings, including early episode and rehabilitation programs, and non-government organisations dealing with people with psychotic disorders, to ensure generalisability, adaptability, and acceptability; Augment case managers' knowledge and skills in dealing with comorbid drug and alcohol use Enhance detection, motivation to change, ongoing monitoring and relapse prevention of substance misuse in clients with psychotic disorders. It will also be possible, once the treatment intervention is finalised and evaluated, to expand its use to patients with non-psychotic mental illnesses.Read moreRead less
Twin and family studies show schizophrenia has a genetic basis. Attempts to find and characterise the underlying genes have not been successful so far. A main reason for this is that insufficient attention has been paid to the complexity of the underlying genetic architecture of the disorder. The pathway from genes to symptoms of schizophrenia is likely to involve elementary processes at neuronal and neural circuitry levels that vary between individuals and this variation is reflected in a grade ....Twin and family studies show schizophrenia has a genetic basis. Attempts to find and characterise the underlying genes have not been successful so far. A main reason for this is that insufficient attention has been paid to the complexity of the underlying genetic architecture of the disorder. The pathway from genes to symptoms of schizophrenia is likely to involve elementary processes at neuronal and neural circuitry levels that vary between individuals and this variation is reflected in a graded susceptibility to schizophrenia. During the last three years we have recruited a large number of families with at least one family member diagnosed with schizophrenia. The proband and all participating first-degree relatives have been assessed with a neurocognitive test battery including measures of sustained attention, working memory, speed of information processing, auditory verbal learning and executive function. Analysis of the neurocognitive data on this sample produced strong evidence that several measures are altered in patients with schizophrenia and a proportion of their asymptomatic first-degree relatives compared to unrelated normal controls. In the study we will systematically search the human genome for DNA markers linked to these measures. This will set the stage for the systematic search and characterisation of the underlying genes. This will allow us to better understand the predisposition to develop schizophrenia. In the individual case it is likely that this vulnerability results from a high-risk combination of a number of relatively common alleles which contribute to basic neural processes.Read moreRead less
Social Behaviour In Rats Developmentally Deficient In Vitamin D: Modelling The Negative Symptoms Of Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$360,927.00
Summary
We are exploring low maternal vitamin D as a biological explanation for a 7-10% increase in the incidence of patients born with schizophrenia in the colder months of the year world wide. Developmental vitamin D (DVD) deficiency in rats leads to long term changes in brain development and behaviour. The aim of this research is to examine social behaviour in DVD deficient rats as a model of negative symptoms of schizophrenia and establish the neurochemical basis for this altered behaviour
A Study Of Muscarinic Receptors In Brain Tissue Obtained Postmortem From Subjects With Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$354,810.00
Summary
The research outlined in this proposal will examine the molecular make up of certain regions of the human brain and determine if components within those regions are altered in tissue from subjects with schizophrenia. Schizophrenia is a serious psychiatric illness that affects approximately 1% of the Australian population and the research described in this proposal seeks to help understand the cause of the illness and-or to assist in the development of new drugs with which to treat the illness. T ....The research outlined in this proposal will examine the molecular make up of certain regions of the human brain and determine if components within those regions are altered in tissue from subjects with schizophrenia. Schizophrenia is a serious psychiatric illness that affects approximately 1% of the Australian population and the research described in this proposal seeks to help understand the cause of the illness and-or to assist in the development of new drugs with which to treat the illness. The goal of the research outlined in this proposal is to determine if there are changes in specific molecules in the brain, termed muscarinic receptors. The muscarinic receptors are one way that a chemical in the brain called acetylcholine can communicate with the nerve cells in the brain. Acetylcholine is known to control important functions of the brain such as in memory, cognition and learning, all of these functions are thought to be affected in schizophrenia. Importantly, the control of all these functions involve muscarinic receptors and therefore, changes in those receptors could well produce some of the symptoms of schizophrenia. We now wish to extend our early studies which suggest there may be changes in muscarinic receptors in the brain of subjects with schizophrenia to determine which of the 5 muscarinic receptors are affected in which region of the brain by the pathology of the illness. From our existing data, we would predict that these studies will add weight to the argument that muscarinic receptors are altered in schizophrenia and provide vital information as to how drugs that target these receptors may be used to treat the illness.Read moreRead less
INVESTIGATING THE VALIDITY OF PRENATAL INSULTS AS RISK FACTORS FOR SCHIZOPHRENIA.
Funder
National Health and Medical Research Council
Funding Amount
$201,100.00
Summary
Schizophrenia is one of the most devastating of human mental disorders affecting about 1% of the population. The cause of this disorder is not known but it seems certain that it will involve genetic and environmental factors. An adverse environmental factor could be a reduced supply of oxygen and nutrients to a baby during pregnancy. In guinea pigs we aim to investigate whether disruption to the normal supply of oxygen and nutrients to the fetus disrupts the normal fine structure and chemical ma ....Schizophrenia is one of the most devastating of human mental disorders affecting about 1% of the population. The cause of this disorder is not known but it seems certain that it will involve genetic and environmental factors. An adverse environmental factor could be a reduced supply of oxygen and nutrients to a baby during pregnancy. In guinea pigs we aim to investigate whether disruption to the normal supply of oxygen and nutrients to the fetus disrupts the normal fine structure and chemical make up of the brain and gives rise to long-lasting structural and neurochemical changes in adolescent animals, which resemble changes found in the brains of patients with schizophrenia. We will also assess whether behavioural responses of compromised animals are altered in tests that parallel disturbances seen in patients with schizophrenia. Such abnormal brain development could create an underlying vulnerability in the brain, predisposing individuals with risk factors such as genetic inheritance to develop the symptoms of schizophrenia in later life perhaps only after the complete formation of nerve pathways involved in higher brain functioning. If guinea pigs that have been subjected to low oxygen levels during pregnancy show sustained changes in the structure and neurochemistry in regions of the brain that are altered in patients with schizophrenia it would suggest that these long lasting disturbances could result from problems during pregnancy. Thus, this would support the idea that abnormal brain development during pregnancy is one of the underlying causes of schizophrenia.Read moreRead less
Psychiatric Morbidity, Quality Of Life And Coping Styles Of Patients With Early Stage & Advanced Prostate Cancer
Funder
National Health and Medical Research Council
Funding Amount
$281,018.00
Summary
Prostate cancer affects thousands of men each year. Advances in treatment are continuing, but side-effects frequently create disruptions to daily living. If the quality of care for prostate cancer patients is to be further improved, there is much to be learned about the psychosocial impact of the disease and its treatment across its different phases. There has not been a systematic prospective study of psychosocial adjustment in men with prostate cancer. In this study, we longitudinally follow t ....Prostate cancer affects thousands of men each year. Advances in treatment are continuing, but side-effects frequently create disruptions to daily living. If the quality of care for prostate cancer patients is to be further improved, there is much to be learned about the psychosocial impact of the disease and its treatment across its different phases. There has not been a systematic prospective study of psychosocial adjustment in men with prostate cancer. In this study, we longitudinally follow two separate groups of men with prostate cancer, those with early disease and those with advanced illness. We focus on the particular side-effects of urinary incontinence, impotence and bowel symptoms and the potential these have to affect the patient's sense of wellbeing. We use a standardised interview and questionnaires to assess for the presence of psychiatric disorders and psychological problems, overall quality of life and coping styles in these men. We seek to recognise the predictors of men who may have coping problems. A statistical approach termed pathway analysis will help us understand the relative contributions of different factors associated with these problems. The outcome of this systematic, longitudinal study will be a body of knowledge concerning risk factors for poorer psychosocial adjustment and optimum coping strategies for managing the impact of prostate cancer and its treatment, thereby empowering a range of targeted interventions to be developed to enhance the wellbeing and quality of life of these men.Read moreRead less