Role Of Post-traumatic Hypoxia In The Exacerbation Of Cerebral Inflammatory Response Elicited By Brain Injury
Funder
National Health and Medical Research Council
Funding Amount
$397,535.00
Summary
Traumatic brain injury is the major cause of death in the young population below the age of 40 years. Approximately 25% of patients that survive head injury remain with permanent neurological disabilities with considerable family, professional and economic costs. Extensive research has shown that not all brain damage occurs at the time of injury, but rather evolves over the hours and days following trauma. Secondary injury may result from various factors including hypoxia (insufficient oxygen) a ....Traumatic brain injury is the major cause of death in the young population below the age of 40 years. Approximately 25% of patients that survive head injury remain with permanent neurological disabilities with considerable family, professional and economic costs. Extensive research has shown that not all brain damage occurs at the time of injury, but rather evolves over the hours and days following trauma. Secondary injury may result from various factors including hypoxia (insufficient oxygen) as a consequence of respiratory distress that occurs in about 50% of patients with severe head trauma. Hypoxia is known to significantly worsen the neurological impairment and potentially lead to death. Brain injury and hypoxia have the ability to separately trigger cerebral inflammation. A dual role has been attributed to inflammation: to promote tissue repair but also add further damage through the release of neurotoxic substances. We hypothesise that hypoxia occurring after traumatic brain injury enhances the inflammatory response in the brain and aggravate tissue damage as well as neurological dysfunction. This hypothesis will be tested on a rat model of brain injury whereby the animals will be exposed to moderate-severe hypoxia immediately after trauma. The production of multiple inflammatory mediators will be quantified in the brain tissue and also in cerebrospinal fluid. The concentration of these mediators will be compared with the levels of cellular injury proteins known to increase following injury to determine whether a correlation exists. In a clinical study on patients, we will measure the same inflammatory mediators and proteins in the cerebrospinal fluid and blood of individuals with severe head injury. The suitability of these factors for potential use as diagnostic-prognostic markers of either hypoxia or injury will be determined.Read moreRead less
Determining The Cellular Mechanism Underlying Diffuse Axonal Injury Following Brain Trauma
Funder
National Health and Medical Research Council
Funding Amount
$400,885.00
Summary
Traumatic head injury causes transient stretch injury to the nerve cell processes within the brain. This leads to a poorly understood series of cellular changes within nerve cells which may ultimately lead to their breakage and subsequent neurological disability. This project seeks to understand how this nerve cell damage forms, and explores new potential interventions which may protect the brain.
Mild traumatic brain injury (TBI) is a leading cause of death and disability in Australia, especially in young populations. Although many patients recover uneventfully following mild TBI, complications such as prolonged symptoms, depression and cognitive deterioration may occur. With considerable advancements in neuroimaging and cognitive assessment in recent years, newer techniques may provide a window to directly observe changes that accompany mild TBI.
Mild Traumatic Brain Injury And The Risk Of Long-term Neurodegenerative And Neurobehavioural Disease
Funder
National Health and Medical Research Council
Funding Amount
$585,269.00
Summary
Considerable media attention surrounds the potential for long-term problems in individuals with high exposure to head impacts such as seen in sporting, civilian and/or military contexts. This study examines the long-term effects of mild traumatic brain injury (mTBI) and helps close the current knowledge gap of the impact of this disorder on individuals. There are no long term trials to answer the critical question of whether mild TBI causes long term problems in the brain.
I use multidisciplinary and neuroimaging approaches to understand how the biochemistry of the brain affects how the brain functions in health and disease. This basic science underpins treatment approaches and furthers our understanding of a wide range of brain disorders.
Neurorestorative Rehabilitation In Children With Cerebral Palsy
Funder
National Health and Medical Research Council
Funding Amount
$451,716.00
Summary
Cerebral palsy (CP) is the most common physical disability (1 in 500) with life-long impact. The economic burden is AUS$1.47 billion/yr. Children have limitations in function which impacts daily activities and participation. Deficits in visual perception and learning have an impact on vocational aspirations. This program will test novel interventions (Action Observation training, constraint induced movement therapy, multi-modal web training) measuring broad outcomes and mechanisms with Advanced ....Cerebral palsy (CP) is the most common physical disability (1 in 500) with life-long impact. The economic burden is AUS$1.47 billion/yr. Children have limitations in function which impacts daily activities and participation. Deficits in visual perception and learning have an impact on vocational aspirations. This program will test novel interventions (Action Observation training, constraint induced movement therapy, multi-modal web training) measuring broad outcomes and mechanisms with Advanced Brain Imaging.Read moreRead less
Proteases And Protease-inhibitor Complexes As Modulators Of Traumatic Brain Injury Severity
Funder
National Health and Medical Research Council
Funding Amount
$613,311.00
Summary
Traumatic brain injury (TBI) is a significant cause of mortality and morbidity in Australia, affecting approximately 21,800 Australians annually. A large number of survivors have permanent neurological deficits, causing adverse effects on lifestyle and family relationships and placing a significant burden on the health system. In this project we will address a novel means to improve TBI outcome by targeting two linked enzyme systems that together have been shown to be deleterious in this conditi ....Traumatic brain injury (TBI) is a significant cause of mortality and morbidity in Australia, affecting approximately 21,800 Australians annually. A large number of survivors have permanent neurological deficits, causing adverse effects on lifestyle and family relationships and placing a significant burden on the health system. In this project we will address a novel means to improve TBI outcome by targeting two linked enzyme systems that together have been shown to be deleterious in this condition.Read moreRead less
DImensional Attention MOdelling For Neglect Detection (DIAMOND): A Novel Application For Brain Injury
Funder
National Health and Medical Research Council
Funding Amount
$513,483.00
Summary
One in three people experience neglect disorder after brain injury, where half of their visual world appears missing. Neglect is a persistent and distressing cognitive problem impacting all aspects of daily life, and is typically under-diagnosed and poorly treated. We have built a novel 3D technology platform for precision detection of neglect, and for informing personalised treatment options. This systematic feasibility project will establish early evidence for advanced neglect assessment.