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A Genome-wide Linkage Study Of Schizophrenia In A Large Sample From Tamil Nadu, India
Funder
National Health and Medical Research Council
Funding Amount
$500,000.00
Summary
A Study of Schizophrenia in Tamil Nadu, India. The cause of schizophrenia is unknown, but there is good evidence that genes play a role. Geneticists do not fully understand how the disease is inherited, but it is very complex, and several interacting genes as well as environmental factors are probably involved. We have been recruiting families with at least two siblings with schizophrenia from a number of communities-casts in Tamil Nadu. We plan to recruit a total of 400 affected sibling familie ....A Study of Schizophrenia in Tamil Nadu, India. The cause of schizophrenia is unknown, but there is good evidence that genes play a role. Geneticists do not fully understand how the disease is inherited, but it is very complex, and several interacting genes as well as environmental factors are probably involved. We have been recruiting families with at least two siblings with schizophrenia from a number of communities-casts in Tamil Nadu. We plan to recruit a total of 400 affected sibling families, together with 400 trio families (both parents, plus their affected child). A genome-wide scan of the genetic code in all individuals will be conducted to identify chromosomal regions linked to schizophrenia. This is the first necessary step toward identifying schizophrenia susceptibility genes. If one or more genes are discovered, this will greatly improve our understanding of this disease. It will also stimulate the search for similar genes in other samples world-wide, including Australia where schizophrenia costs $2.5 billion annually in terms of treatment and loss of employment. With such a discovery, it may be possible to find better treatments that correct the basic cause of the illness and identify factors that protect against the illness.Read moreRead less
A Genetic Study Of Schizophrenia In The Brahmin Of Tamil Nadu
Funder
National Health and Medical Research Council
Funding Amount
$267,226.00
Summary
The cause of schizophrenia is unknown, but there is good evidence that genes play a role. Geneticists do not fully understand how it is inherited, but it is very complex, and several interacting genes as well as environmental factors are probably involved. Societies such as Australia are genetically diverse because people from many different ethnic groups have intermarried. To detect susceptibility genes in this type of population, we must study very large patient samples. Alternatively, we can ....The cause of schizophrenia is unknown, but there is good evidence that genes play a role. Geneticists do not fully understand how it is inherited, but it is very complex, and several interacting genes as well as environmental factors are probably involved. Societies such as Australia are genetically diverse because people from many different ethnic groups have intermarried. To detect susceptibility genes in this type of population, we must study very large patient samples. Alternatively, we can study genetically homogenous patient samples, found in isolated gene-pool populations. One such population is the Brahmin people in Tamil Nadu, a south-eastern state of India. The Brahmin are descended from the Aryan peoples who migrated into southern India 2000 years ago. In the Hindu caste system, Brahmin are the highly educated priest class, and enjoy a privileged position in society. Traditionally, marriages among the Brahmin of Tamil Nadu have been prearranged, with a preference for first-cousin marriages. As well as this cultural and historical evidence, genetic marker studies confirm that this population is a suitable genetic isolate. In this project, genetic material (DNA) will be collected from Brahmin schizophrenic patients and their families. Diagnostic data, detailed family data, and blood samples will be gathered from 90-100 extended families, each containing two or more ill individuals. Analysis of their genetic code will enable a search for possible schizophrenia susceptibility genes and a systematic search for a mutation. If found, this will greatly improve our understanding of schizophrenia, and stimulate the search for similar genes in other samples world-wide, including Australia where schizophrenia costs $3 billion annually in terms of treatment and lost jobs. If schizophrenia genes can be found, it may be possible to find better treatments that correct the basic causes of the illness and identify factors that protect against the illness.Read moreRead less
PSYSCAN— Translating Neuroimaging Findings From Research Into Clinical Practice
Funder
National Health and Medical Research Council
Funding Amount
$376,285.00
Summary
Our ability to predict the onset and outcome of schizophrenia and other psychotic disorders remains limited. This restricts the implementation of effective preventative and early interventions. This project will rectify this by developing a tool of significant clinical utility. The project has 2 aims: 1. To develop and validate a neuroimaging-based tool for use in early psychosis to assist with early diagnosis, outcome, and disease progression. 2. To apply the tool in clinical practice.
Personalised Prognostic Tools For Early Psychosis Management (PRONIA)
Funder
National Health and Medical Research Council
Funding Amount
$401,739.00
Summary
Psychosis can be a devastating illness with harmful long-term consequences, such as chronic schizophrenia. To avoid distress, deterioration, and potential disability, we need more accurate tools to personalise treatment for individuals by understanding their prognosis. The PRONIA project will help to improve methods of predicting outcomes by working with our European colleagues to create a cybernetic prognostic system for psychosis that uses brain imaging, genetics, cognition, and clinical marke ....Psychosis can be a devastating illness with harmful long-term consequences, such as chronic schizophrenia. To avoid distress, deterioration, and potential disability, we need more accurate tools to personalise treatment for individuals by understanding their prognosis. The PRONIA project will help to improve methods of predicting outcomes by working with our European colleagues to create a cybernetic prognostic system for psychosis that uses brain imaging, genetics, cognition, and clinical markers.Read moreRead less
Integrated Analysis Of Genome, Epigenome, And Transcriptome Data In Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$417,511.00
Summary
Schizophrenia is a severe psychiatric disorder with a diverse range of symptoms. While the cause is unknown, it is thought to develop from a combination of genetic, epigenetic and environmental risk factors. This study will use genome wide approaches to investigate the relationship between genetic/epigenetic modification of DNA and gene expression in schizophrenia. This study could provide an integrated understanding of the neuropathology of schizophrenia and ultimately lead to better treatment.
The Outcomes Of Adolescents And Young Adults Who Experience Hallucinations: A Birth Cohort Study
Funder
National Health and Medical Research Council
Funding Amount
$624,842.00
Summary
A national survey reported that 1 in every 12 Australian adolescents experiences hallucinations. Although hallucinations are relatively common experiences, it remains unclear if hallucinations in adolescence are associated with mental illness, and impairment in social and occupational functioning in later adulthood. This study aims to examine the outcomes at 30 years of age in subjects from an Australian birth cohort study who experienced hallucinations during adolescence and young adulthood.
The Diagnosis, Biomarker Identification And Measurement Of Drug Efficacy In Mental Illness And Neurological Conditions.
Funder
National Health and Medical Research Council
Funding Amount
$119,050.00
Summary
Globally, 2 billion people suffer from a neuropsychiatric illness. The cost is more than US$2 trillion a year. Hampering early intervention is the current lack of definitive, quantitative techniques for diagnosis and measurement of treatment efficacy. This research will determine whether the disease fingerprints produced by a new technique, EVestG, are diagnostically unique (to schizophrenia, depression and Parkinson's disease) and sensitive to disease progression and treatment response.
A Prospective Study Investigating Implications Of Bioactive Lipids For Diagnosis And Treatment Of Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$324,480.00
Summary
This study will investigate the role of fatty acids (lipids) in schizophrenia. Studies in blood cells and in the brains of patients with schizophrenia have shown that these lipids and related products are altered in schizophrenia. We are now able to measure separate lipid metabolites in the living human brain using a technique called magnetic resonance spectroscopy. Until recently it was only possible to assess lipid metabolites as a group, limiting interpretation. Thanks to a newly available im ....This study will investigate the role of fatty acids (lipids) in schizophrenia. Studies in blood cells and in the brains of patients with schizophrenia have shown that these lipids and related products are altered in schizophrenia. We are now able to measure separate lipid metabolites in the living human brain using a technique called magnetic resonance spectroscopy. Until recently it was only possible to assess lipid metabolites as a group, limiting interpretation. Thanks to a newly available imaging system at the Brain Imaging Research Institute and a new analysis technique, we will be able to measure single lipid metabolites in the living human brain. Simultaneously we will also measure lipids and related enzymes in red blood cells that are responsible for the regulation of these lipids. Preliminary data has shown that there is a strong correlation between these two measures. Furthermore we will investigate the genes that are responsible for the production of these enzymes. By repeating the same tests after 12 weeks we hope to understand how the newer antipsychotic drugs act. Two easy clinical tests (a skin and breath test) will help us to implement the findings in daily clinical practice (diagnostic markers for patients at risk) . With such a multi-level approach we hope to contribute to a new understanding of the origins of schizophrenia going beyond the traditional concepts. The findings might also have direct implications for treatment. Preliminary results are very promising but also contradictory. Therefore it is even more important to carefully investigate the role of these lipids in schizophrenia.Read moreRead less
Studies On The Expression Of Muscarinic Receptors: Implications For The Pathology Of Schizophrenia
Funder
National Health and Medical Research Council
Funding Amount
$498,791.00
Summary
Schizophrenia is a severe psychiatric disorder that affects approximately 1% of the population. This project will help define changes in the molecules in the brain of subjects with schizophrenia which are likely to be involved in two symptoms of the disorder, the psychoses and cognitive deficits. Understanding the cause of the cognitive deficits of schizophrenia is a high priority because they are the most disabilitating symptom of the disorder and do not respond to current drug treatments.
Circulating Tumour DNA (ctDNA) As A Diagnostic Tool In Colorectal Cancer: Role In Screening And Early Detection Of Metastatic Or Recurrent Disease
Funder
National Health and Medical Research Council
Funding Amount
$500,478.00
Summary
These studies will be exploring the value of using a blood test to detect cancer DNA as a screening test for colorectal cancer. This test promises to be superior to faecal blood testing, which is currently performed as part of the National Bowel Cancer Screening Program. It may also have advantages over colonoscopy as a screening tool. Given the likely acceptability of having a blood based screening test, it is expected that participation rates in bowel cancer screening, which has been shown to ....These studies will be exploring the value of using a blood test to detect cancer DNA as a screening test for colorectal cancer. This test promises to be superior to faecal blood testing, which is currently performed as part of the National Bowel Cancer Screening Program. It may also have advantages over colonoscopy as a screening tool. Given the likely acceptability of having a blood based screening test, it is expected that participation rates in bowel cancer screening, which has been shown to save lives, will be greatly increased.Read moreRead less