The Use Of MicroRNA As Novel Therapeutic Targets For Reducing Retinal Inflammation And Degeneration
Funder
National Health and Medical Research Council
Funding Amount
$349,076.00
Summary
Age-Related Macular Degeneration (AMD) is the most common cause of blindness in Australia. We aim to investigate a new class of potential therapeutics, microRNA which are involved in the regulation of many biological processes, including inflammation. A greater understanding of these miRNA will enable discovery of novel therapeutic targets for inflammatory diseases like AMD, and will have further reaching applications in other inflammatory disease such as Alzheimer’s and Parkinson’s.
Determining The Electrical Stimulation Parameters Required To Program The Bionic Eye To Effect Vision.
Funder
National Health and Medical Research Council
Funding Amount
$458,449.00
Summary
Our eyes are invaluable organs that we use for nearly all daily tasks. Loss of vision is devastating but, unfortunately, little can be done at this time. One strategy to restore vision is through a prosthetic to stimulate the retina. For a prosthetic to work, however, we must first understand how the retina encodes the visual image. Our research seeks to decode the retinal signals and determine how a Bionic Eye could be programmed to mimic them.
Age-related macular degeneration, involves the progressive loss of light sensitive cells from the retina, and is a major cause of loss of vision, and quality of life, in people over 60. Activation of immune mechanisms have been implicated in the disease, but it is not understood, why the immune system attacks vision cells. This study looks at the mechanisms of the activation of immune cells and will test treatment strategies to minimize immune activation, and thereby prevent blindness.
Novel Approaches To Understanding Peripheral Vision In Patients With Central Vision Loss
Funder
National Health and Medical Research Council
Funding Amount
$367,101.00
Summary
The aim of my research is to develop novel interventions that enhance the peripheral vision of patients with central vision loss, and to investigate the neural correlates of visual perception in peripheral vision in typical adults. My research will inform rehabilitation strategies that optimise the visual function of patients with partial blindness, and provide a more thorough understanding of the underlying neural mechanisms that reduce the quality of peripheral vision.
Glaucoma is a progressive, poorly understood blinding disease with limited treatment options. It is characterised by the death of the nerve cells in the eye whose fibres form the optic nerve. Results obtained in the current proposal will lead to a better understanding of key features of the early stages of the disease and, additionally, will explore the potential of a novel therapeutic approach based on regeneration of damaged nerve fibres within the optic nerve.
Understanding the structure of the human retina is important for understanding normal visual function. The goal of this study is to supply data on the distribution, density and connectivity of nerve cells in the human retina. Our study will provide a foundation for areas of clinical investigation of the human retina.
The Cellular Organisation Of Interneurones In Human Retina
Funder
National Health and Medical Research Council
Funding Amount
$526,454.00
Summary
Our goal is to determine the numbers and types of nerve cells in the human retina: the part of the eye where visual processing starts. This data will serve as a baseline against which effects of visual disease can be measured.
Abnormalities in cells at the back of the eye called photoreceptors are associated with at least 50% of all cases of blindness in this country.This project will examine a novel mechanism of photoreceptor death. In particular, whether abnormalties in support cells at the back of the eye cause photoreceptors to lose contact with their nutrient source and die.
We will investigate changes in the retina secondary to disease process and try and modify them to allow a longer time frame for intervention. These changes (remodelling) are detrimental to visual function and the effectiveness of measures aimed at restoring vision, eg, bionic eye.
The Role Of Gliosis In Advanced Retinal Degeneration
Funder
National Health and Medical Research Council
Funding Amount
$457,785.00
Summary
The development of treatments that restore vision assumes that the output neurons of the retina remain intact. Yet, there is now considerable evidence that the neurons that signal from the retina to the brain are altered in those that have degenerative diseases of the retina. Here, we will examine the cause of these cellular changes in an animal model and seek to prevent the loss of output neurons. This information is crucial for the development of treatments that seeks to restore vision.