Frontotemporal Dementia And Motor Neurodegenerative Syndromes
Funder
National Health and Medical Research Council
Funding Amount
$17,069,580.00
Summary
Frontotemporal degeneration of the brain is a leading cause of morbidity due to a pathologically heterogeneous, rapidly-progressive group of disorders with behavioural, language and motor deficits. Our internationally recognized team will continue to develop the necessary tools and therapies to effectively diagnose, manage and treat these disorders. Our focus in this program is to understand the unusual genetics underpinning these disorders, and to fast track any potential treatments.
The Impact Of Circadian Disturbances On Sleep Quality, Cognition And Psychiatric Symptoms In Neurodegenerative Disease
Funder
National Health and Medical Research Council
Funding Amount
$496,340.00
Summary
There is an increasing awareness that neurodegenerative diseases are associated with disturbances in sleep. Our group have recognised that patterns of sleep disturbance in these patients are also related to problems with memory and mood. The proposed study will be the first of its kind to explore whether disruptions in the circadian system represent a common mechanism underlying these comorbid disease features. Understanding this pathology will hopefully lead to the development of new therapies.
The Effect Of Stress And Hypercortisolaemia On Limbic Epileptogenesis & Affective Disorder.
Funder
National Health and Medical Research Council
Funding Amount
$380,714.00
Summary
This project has the potential to provide novel insights about the causal connections between stress, psychiatric illness (specifically anxiety and depression) and temporal lobe epilepsy (TLE) - the most common form of medical refractory epilepsy in the community. Up to 50% of patients with TLE suffer from anxiety and-or depression. Until relatively recently it had been widely assumed that this was a consequence of the chronic epileptic condition. However, recent evidence suggests that there is ....This project has the potential to provide novel insights about the causal connections between stress, psychiatric illness (specifically anxiety and depression) and temporal lobe epilepsy (TLE) - the most common form of medical refractory epilepsy in the community. Up to 50% of patients with TLE suffer from anxiety and-or depression. Until relatively recently it had been widely assumed that this was a consequence of the chronic epileptic condition. However, recent evidence suggests that there is a bi-directional relationship, with the psychiatric conditions and stress also acting to aggravate the seizures and even predispose to the development of the epilepsy itself. Apart from gaining insights into causes of TLE, anxiety and depression, this framework has potential public health relevance suggesting approaches to the eventual primary and secondary prevention of both MTLE and its associated psychiatric co-morbidities, a neglected area at present. The use of an animal model allows investigation of aetiological processes that extend over the lifetime, which is exceptionally difficult to achieve in humans. Retrospective studies, such as case-control studies, although an indispensable research methods, are subject to bias and imprecision when it comes to measuring remote past exposures to stress, abuse, and deprivation. If the results of these experiments are consistent with our hypotheses, a very strong case would exist for exploring this relationship in human studies. The data would also provide a strong rationale for more aggressive detection and treatment of these psychiatric co-morbidities in TLE patients, in order to potentially modify the progression of the disorder as well as improve the quality of life of sufferers. The results of intervention studies in animal models may suggest specific mode of treatment to achieve this.Read moreRead less
Why Does Early Life Stress Aggravate Limbic Epileptogenesis?
Funder
National Health and Medical Research Council
Funding Amount
$540,116.00
Summary
High rates of anxiety and depression occur in individuals with temporal lobe epilepsy (TLE), the most common form of focal epilepsy in adults. Rats that have experienced early life stress show increased anxiety, decreased seizure thresholds and accelerated epilepsy as adults. We have important leads to mechanisms. The proposed study will better understand the mechanisms connecting early life stress and psychiatric disease to adult TLE, and to test interventions that may counteract these effects.
Non-Alzheimer’s Disease Degenerative Dementias: Identifying Prodromal Genetic/familial Phenotypes, Modifying Factors, And Protein Variations Involved In Progression
Funder
National Health and Medical Research Council
Funding Amount
$6,449,246.00
Summary
This proposal will generate new knowledge necessary for advancing the diagnosis of the non-Alzheimer’s disease dementias. We will identify the preclinical forms of frontotemporal dementia and Lewy body dementia using similar methods to those successfully employed to advance diagnosis of Alzheimer’s disease. Importantly, our team has the capacity to translate these protocols into clinical practice and into further advances in biological knowledge that is necessary for future therapeutic targeting
Partnership Centre: Dealing With Cognitive And Related Functional Decline In Older People
Funder
National Health and Medical Research Council
Funding Amount
$12,500,000.00
Summary
The focus of this Partnership Centre is how to better apply our existing knowledge and how to create new knowledge that will directly improve support to those elderly suffering from cognitive decline, their carer’s (formal and informal) and the various agencies delivering services for them. This Partnership Centre’s Investigator Team will engage in a range of activities to improve aged care service planning (including continuity of care and risk assessments of community care); develop and implem ....The focus of this Partnership Centre is how to better apply our existing knowledge and how to create new knowledge that will directly improve support to those elderly suffering from cognitive decline, their carer’s (formal and informal) and the various agencies delivering services for them. This Partnership Centre’s Investigator Team will engage in a range of activities to improve aged care service planning (including continuity of care and risk assessments of community care); develop and implement new approaches to support informal carer’s; reduce stigma around cognitive decline in both the health care and community context; improve the size and quality of the aged care workforce; assist with decision making, rights, citizenship and related ethics through education; improve aged care regulation; promote responsible medication management; develop and disseminate up-to-date clinical guidelines; and implement proven models of care.Read moreRead less
THE NATURAL HISTORY OF COGNITIVE IMPAIRMENT AND DEMENTIA IN A STROKE COHORT
Funder
National Health and Medical Research Council
Funding Amount
$290,747.00
Summary
In a current NHMRC-funded study, we have examined 200 stroke patients (and 100 control subjects) at 3 months after a stroke and one year later, and identified those who have impairment in memory and other cognitive functions. We have also studied these subjects in detail from a psychiatric perspective and performed brain scans on them using magentic resonance imaging. We find that many stroke patients have problems with their cognitive functioning which has a major impact on their lives. A large ....In a current NHMRC-funded study, we have examined 200 stroke patients (and 100 control subjects) at 3 months after a stroke and one year later, and identified those who have impairment in memory and other cognitive functions. We have also studied these subjects in detail from a psychiatric perspective and performed brain scans on them using magentic resonance imaging. We find that many stroke patients have problems with their cognitive functioning which has a major impact on their lives. A large number also become depressed. These consequences of stroke are not given sufficient importance by clinicians. The fact that stroke is a common problem in the elderly, and our society is aging, makes this a problem of major public health significance. In the new proposal, we plan to study these subjects up to 3 years with repeat neuropsychiatric assessments and brain scans to investigate the natural history of stroke-related cognitive impairment. We will determine whether further new cases of dementia develop in the period 1-3 years, what happens to the brain lesions picked up on brain scans, and how these deficiencies affect the patients' living status and their longevity. We will be able to determine the factors that lead to a good outcome, and suggest strategies that may be applicable to improve the functioning of these individuals.Read moreRead less
An Extended Follow-up Of Stroke Patients For Cognitive Impairment And Neuropsychiatric Disorders: Sydney Stroke Study
Funder
National Health and Medical Research Council
Funding Amount
$321,800.00
Summary
Vascular Dementia (VaD) is the second most common cause of dementia after Alzheimer's disease. In fact, it may be a preventable cause of dementia. Yet it has been relatively neglected by researchers until the last decade, which has seen an upsurge of interest in this disorder. There is no consensus on the criteria for dementia. The profile of early cognitive impairment due to vascular factors is still poorly understood, and the longitudinal course of VaD as defined by modern criteria has not bee ....Vascular Dementia (VaD) is the second most common cause of dementia after Alzheimer's disease. In fact, it may be a preventable cause of dementia. Yet it has been relatively neglected by researchers until the last decade, which has seen an upsurge of interest in this disorder. There is no consensus on the criteria for dementia. The profile of early cognitive impairment due to vascular factors is still poorly understood, and the longitudinal course of VaD as defined by modern criteria has not been studied. There have been few studies of the progressive changes in MRI in patients with cerebrovascular disease. The overlap of VaD and Alzheimer's disease (AD) remains a problem for taxonomists and clinicians. One approach to the study of VaD is to examine a high risk group of subjects longitudinally to determine the early features, the risk factors and progressive changes. With this in mind, we began studying a cohort of stroke patients who are at high risk of VaD, in 1997-1999, and are following them longitudinally. The follow-up is now in its third year, and three neuropsychological assessments and two MRI-MRS scans have been performed. We propose to extend the follow-up to 5 years, with repeat neuropsychiatric, neuropsychological and MRI-MRS investigations, and wherever possible to necropsy, to determine the nature of vascular pathology that underlies cognitive impairment. Our cohort of stroke patients is arguably the most comprehensively assessed such cohorts internationally, and presents an excellent opportunity for a long-term follow-up study.Read moreRead less
A European DNA Bank For Deciphering The Missing Heritability Of Alzheimer's Disease (EADB)
Funder
National Health and Medical Research Council
Funding Amount
$1,556,995.00
Summary
Understanding the genetics of Alzheimer’s disease (AD) is one of the best ways of improving our knowledge of the underlying mechanisms of disease development. There is evidence that genetic factors account for up to 80% of the risk for AD. Recent advances in genetics still explain <50% of this risk. This proposal will help two major Australian studies to partner with a large European consortium in trying to understand the “missing” heritability, using existing and novel genetic data.