Is The Eye A Window To The Brain In Sanfilippo Syndrome?
Funder
National Health and Medical Research Council
Funding Amount
$852,967.00
Summary
Study of the retina and optic nerve permits evaluation of central nervous system – these structures contain both neurons and glia and are outgrowths of the developing brain. Therefore, eye examination may allow us to study the brain and monitor brain disease and the effect of therapy. This project will determine whether brain disease in a childhood-onset disorder (Sanfilippo syndrome) and treatment of it, can be monitored in this way.
Retinal Microvascular Signs In Acute Stroke: Prognostic Significance And Relevance To Underlying Pathophysiology
Funder
National Health and Medical Research Council
Funding Amount
$375,425.00
Summary
This project will describe abnormalities of the blood vessels of the retina in patients with stroke. Stroke is a common problem affecting some 48,000 Australians each year. Despite medical progress, stroke is commonly fatal (the third leading cause of death) and the leading cause of serious acquired disability in older people. This project will obtain detailed photographs of patients admitted to hospital with acute stroke. The acquired digital images will be analysed using new methods that asses ....This project will describe abnormalities of the blood vessels of the retina in patients with stroke. Stroke is a common problem affecting some 48,000 Australians each year. Despite medical progress, stroke is commonly fatal (the third leading cause of death) and the leading cause of serious acquired disability in older people. This project will obtain detailed photographs of patients admitted to hospital with acute stroke. The acquired digital images will be analysed using new methods that assess size of the small retinal arteries compared to veins (the arteriole-to-venule ratio) and will document other abnormalities, such as microaneurysms, haemorrhages, tortuosity and focal and generalised vessel narrowing and wall opacity. In normal populations these signs are associated with hypertension, inflammation and endothelial dysfunction and predict future stroke. These signs, and their significance have not been systematically studied in acute stroke. This may offer a window into the brain for important subgroups of stroke such as lacunar stroke. It is increasingly hard (and remains technically very difficult) to study the cause of lacunar stroke, affecting 10,000 Australians each year, as lacunar stroke has a lower fatality rate (and thus few opportunities for post mortem studies) but a high disability rate. Lacunar stroke is known to be due to small vessel disease but the exact nature of this disease is unknown. Echocardiography (to identify heart and major blood vessel abnormalities) and carotid duplex scanning (to identify critical stenosis of the major blood supply to the brain) are commonly normal in this type of stroke, and brain scanning with computerised tomography (CT) or magnetic resonance (MR) merely shows the outcome of the small vessel disease. The eye develops as part of the brain and thus retinal vascular abnormalities could add important knowledge to our understanding of stroke and add clinically useful data in the assessment of patients with stroke.Read moreRead less
Epileptic convulsions are common, disrupt social life and may occasionally cause death. They can occur spontaneously in individuals whose brains appear to be physically normal. Apart from the fact that epilepsy may run in families, the processes leading to spontaneous convulsions are not known. We measure the brain's electrical rhythms (EEG) to find out which rhythms are disturbed in people with epilepsy and whether these rhythms disrupt the brain to cause attacks. In preliminary studies in pati ....Epileptic convulsions are common, disrupt social life and may occasionally cause death. They can occur spontaneously in individuals whose brains appear to be physically normal. Apart from the fact that epilepsy may run in families, the processes leading to spontaneous convulsions are not known. We measure the brain's electrical rhythms (EEG) to find out which rhythms are disturbed in people with epilepsy and whether these rhythms disrupt the brain to cause attacks. In preliminary studies in patients with generalised epilepsy, we have identified abnormally strong rhythms that are almost certainly related to epilepsy causation and our studies are in part aimed at making our findings into a diagnostic test. Our findings may even enable individuals with epilepsy to test themselves for their immediate risk of seizure. Both of these outcomes should enable improved treatment for epilepsy. In addition to benefits in epilepsy, there are potential benefits in the diagnosis of cerebral degenerative disorders if changes in the rhythms also occur in these conditions.Read moreRead less
Cerebral Palsy is most common childhood physical disability. While the brain injury is static, disability can be progressive and lifelong. This fellowship aims to develop and test novel interventions to optimise neuroplasticity by improving early detection and physical, cognitive, psychological and health outcomes in children with CP. Earlier accurate detection of CP will ensure effective treatments utilise critical periods of brain development and are translated into evidence based guidelines.
Repetitive Transcranial Magnetic Stimulation Treatment Of Auditory Hallucinations In Psychotic Disorders: A Clinical And Neurobiological Investigation
Funder
National Health and Medical Research Council
Funding Amount
$314,644.00
Summary
This research will investigate a novel treatment, repetitive transcranial magnetic stimulation treatment, for auditory hallucinations of psychosis (e.g. schizophrenia). This work is novel as it will utilise an innovative and sophisticated method to optimise treatment at the individual level. Additionally, by identifying features of patients that predict response to treatment, this research will make major contributions to personalised treatment selection guidelines.
Developmental Vitamin D-deficiency And Autism; Exploration Of Potential Mechanisms And Refining Phenotype In An Animal Model
Funder
National Health and Medical Research Council
Funding Amount
$442,249.00
Summary
We have now shown in a large cross-sectional study that low levels of vitamin D during gestation increase the incidence of autism in children. When we model this risk-relationship in animals we show changes in important developmental processes and behaviours previously linked to autism in children. We now want to understand both the exact downstream molecular pathways affected in the developing brain along with the precise brain structural and behavioural abnormalities produced in offspring.
Using musical training to examine brain plasticity and cognitive skill development. Until recently, the brain was likened to a computer - hard-wired with minimal response to injury. Exciting new research is altering this view, showing that the brain can change in response to the environment. This study will use sophisticated brain scanning techniques with musicians who have rare, absolute pitch ability. This ability develops with exposure to early training during a critical time period. We will ....Using musical training to examine brain plasticity and cognitive skill development. Until recently, the brain was likened to a computer - hard-wired with minimal response to injury. Exciting new research is altering this view, showing that the brain can change in response to the environment. This study will use sophisticated brain scanning techniques with musicians who have rare, absolute pitch ability. This ability develops with exposure to early training during a critical time period. We will test the relationship between this exposure and changes in brain shape and function. The results will tell us about the interaction between genes and environment, and the way normal development can be enhanced by early experiences.Read moreRead less