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Effect Of Aging And Mitochondrial Dysfunction On The Optic Nerve Response To Pressure-induced Oxidative Stress
Funder
National Health and Medical Research Council
Funding Amount
$415,554.00
Summary
The risk of glaucoma, a potentially blinding disease of the optic nerve, increases exponentially with age, but the cellular mechanisms responsible are not known. We hypothesise that age-related changes in mitochondria, the energy producing part of the cell, render nerve cells prone to damage. This project will determine whether aging and mitochondrial impairment increase nerve damage and whether dietary moodifications that preserve mitochondria during aging, protect the optic nerve from damage
How Does Glucose Protect The Retina And Optic Nerve Against Ischaemia?
Funder
National Health and Medical Research Council
Funding Amount
$418,171.00
Summary
Raised blood sugar levels are generally considered to be bad for nerve cells, especially those in the eye. But we have made a groundbreaking discovery finding that in the short-term, sugar can rescue nerve cells in the eye from death caused by lack of blood flow. In this project we will investigate how this remarkable effect is achieved.
DISSECTING THE GENETICS OF GLAUCOMA AND ITS RISK FACTORS USING A TWIN STUDY.
Funder
National Health and Medical Research Council
Funding Amount
$682,850.00
Summary
Glaucoma is one of the leading causes of blindness both in Australia (affecting 2-3% of the population) and worldwide. Glaucoma is often asymptomatic until it causes permanent loss of peripheral vision that precludes 10% of individuals with the condition from holding a driver's license. Around 50% of people with glaucoma are unaware that they have the condition; therefore better screening strategies are required. Genetic factors have been shown to contribute to glaucoma and our work has revealed ....Glaucoma is one of the leading causes of blindness both in Australia (affecting 2-3% of the population) and worldwide. Glaucoma is often asymptomatic until it causes permanent loss of peripheral vision that precludes 10% of individuals with the condition from holding a driver's license. Around 50% of people with glaucoma are unaware that they have the condition; therefore better screening strategies are required. Genetic factors have been shown to contribute to glaucoma and our work has revealed that 50% of people with glaucoma have a family history of the condition. Raised intraocular pressure (IOP) is a major contributing factor in glaucoma. Although there are some genes associated with high-pressure glaucoma, little is known about the heritability of IOP itself. Optic disc cupping is another important sign in the diagnosis and management of glaucoma, but again little is known of the inheritance of this feature. Twin studies, (comparing sets of identical twins with non-identical twins); allow us to estimate the relative contribution of genetic and environmental factors to disease states or physiological measurements. Although there have been small studies involving twins with glaucoma, it is unknown to what degree the basic parameters of glaucoma diagnosis such as IOP and optic disc characteristics are heritable. This project aims to conduct a large twin study into glaucoma and its associated ocular risk factors, including refractive error. We aim to identify genes that predispose to glaucoma, which will facilitate better screening for glaucoma in family members, and the general population, and ultimately leading to improved treatment.Read moreRead less
The Impact Of Fluid Mechanics On Wound Healing After Glaucoma Surgery- An Engineering-based Approach
Funder
National Health and Medical Research Council
Funding Amount
$280,400.00
Summary
Excess scarring after glaucoma surgery is the major reason why surgery fails.This study will investigate how biomechanical forces in the eye influence wound healing and provide a new approach to regulating scar formation. This will provide key information for developing surgical techniques that improve outcome and prevent vision loss. The annual cost to Australia from vision loss due to glaucoma will double to $4.3 billion by 2025 unless better treatments are developed (Access Economics).
Glaucoma is the second leading cause of blindness in the world affecting approximately 70 million people. Glaucoma can occur at any age but the commonest type occurs in middle to old age. The disease has a genetic basis and can be inherited. As a result we have been studying the genetics of the disease in two large families from Tasmania. We hope to identify the genes involved in disease causation using a number of genetic techniques. Once mutations in a disease gene have been identified from af ....Glaucoma is the second leading cause of blindness in the world affecting approximately 70 million people. Glaucoma can occur at any age but the commonest type occurs in middle to old age. The disease has a genetic basis and can be inherited. As a result we have been studying the genetics of the disease in two large families from Tasmania. We hope to identify the genes involved in disease causation using a number of genetic techniques. Once mutations in a disease gene have been identified from affected individuals we will then be in a position to look for mutations in other family members and identify those individuals at risk of developing disease. Improvements in our understanding of how these genes are involved in disease causation will allow us to offer diagnostic testing to the wider community and develop better therapeutic interventions for treatment.Read moreRead less