Muller Cell Reactivity During Diabetic Retinopathy
Funder
National Health and Medical Research Council
Funding Amount
$258,000.00
Summary
Diabetes is the leading cause of blindness in the working population. In some patients with diabetes, blood vessels within the retina proliferate, haemorrhage or cause retinal detachment. The underlying changes within the retina that lead to the proliferation of blood vessels are not well understood. One of the factors that leads to changes in retinal blood vessels is an increase in growth factors from cells within the retina called Muller cells. Muller cells are vital for the normal function of ....Diabetes is the leading cause of blindness in the working population. In some patients with diabetes, blood vessels within the retina proliferate, haemorrhage or cause retinal detachment. The underlying changes within the retina that lead to the proliferation of blood vessels are not well understood. One of the factors that leads to changes in retinal blood vessels is an increase in growth factors from cells within the retina called Muller cells. Muller cells are vital for the normal function of the retina and are known to be abnormal late in diabetes. They may also be dysfunctional early in diabetes and could play a significant role in causing the early changes seen in diabetes. Therefore a good understanding of how Muller cells change and the time at which they change is vitally important to gain a better understanding of the defects that are associated with diabetes. Furthermore, an understanding of the basic underlying cellular changes that occur in dibaetes will aid the development of more specific therapeutic agents in the future.Read moreRead less
High Speed Video To Assess Eye Movements In Vestibular Dysfunction - A Validation Study
Funder
National Health and Medical Research Council
Funding Amount
$133,351.00
Summary
Dizziness affects a third of the population during their lives. Abnormal eye movements are often the best guide as to what has gone wrong in the dizzy person. The problem is that these eye movements can be difficult to see, and hence measure, as a way of diagnosing and then treating the dizziness. Video-oculography holds great promise for helping doctors identify the cause, and in many cases offer simple curative treatment, for dizziness.
Rationale For Non-invasive Treatment Of Retinopathy Of Prematurity: Dark Rearing As A Means Of Mimicking Physiological Vascularisation
Funder
National Health and Medical Research Council
Funding Amount
$413,900.00
Summary
We aim to develop a new, non-invasive and cost-effective treatment for the disease Retinopathy of Prematurity, the leading cause of childhood blindness across the globe. We intend to test our hypothesis that raising neonates in conditions of total darkness and high oxygen will closely mimic conditions for inducing normal retinal vascular development, and thus prevent the initiating event of the disease. Ultimately, the project intends to lay the groundwork for a translation to the human conditio ....We aim to develop a new, non-invasive and cost-effective treatment for the disease Retinopathy of Prematurity, the leading cause of childhood blindness across the globe. We intend to test our hypothesis that raising neonates in conditions of total darkness and high oxygen will closely mimic conditions for inducing normal retinal vascular development, and thus prevent the initiating event of the disease. Ultimately, the project intends to lay the groundwork for a translation to the human condition.Read moreRead less
Plasticity of gastrointestinal vagal afferents. The aim of this project is to identify how leptin modulates specific subtypes of vagal afferent within the gut and the plasticity of this system under different dietary conditions. This proposed project will substantially increase understanding of the interactions between leptin, known to influence food intake, and vagal afferent satiety signals. It will also increase understanding of how these interactions alter in obesity and ultimately provide t ....Plasticity of gastrointestinal vagal afferents. The aim of this project is to identify how leptin modulates specific subtypes of vagal afferent within the gut and the plasticity of this system under different dietary conditions. This proposed project will substantially increase understanding of the interactions between leptin, known to influence food intake, and vagal afferent satiety signals. It will also increase understanding of how these interactions alter in obesity and ultimately provide targets and/or concepts for the pharmacotherapy of obesity.Read moreRead less
Listen and learn - statistical learning and the adapting auditory brain. This project aims to explore the link between rapid neural adaptation - a form of learning referred to as statistical learning - and human listening performance in noisy environments. The project aims to generate a new understanding of mechanisms that contribute to listeners' abilities to understand speech in noise, and to complex communication disorders such as dyslexia. Expected outcomes will include increased capacity to ....Listen and learn - statistical learning and the adapting auditory brain. This project aims to explore the link between rapid neural adaptation - a form of learning referred to as statistical learning - and human listening performance in noisy environments. The project aims to generate a new understanding of mechanisms that contribute to listeners' abilities to understand speech in noise, and to complex communication disorders such as dyslexia. Expected outcomes will include increased capacity to investigate a broad range of cognitive and communication functions. Benefits will include potential technologies and algorithms to assist listening (in devices such as hearing aids), language development and reading.Read moreRead less
Central pathways regulating visceral pain. This project aims to investigate the neural pathways within the spinal cord and brain processing colorectal pain perception. The project aims to identify the spinal cord neurons relaying colorectal signalling into the brain and the influence of descending modulation from the brainstem upon these pathways. The outcomes will greatly benefit fundamental understanding of the central pathways processing visceral pain.
Central Representation of Electroacoustic Stimuli. Cochlear implantation, initially only provided to profoundly deaf individuals, is now routine in people with substantial residual hearing. Although stimulation via a cochlear implant and hearing aid in the same ear has been shown to improve speech understanding, particularly in noise, and to increase the aesthetic quality of sound, almost nothing is known about the physiological mechanisms underlying these benefits. The broad aim of our project ....Central Representation of Electroacoustic Stimuli. Cochlear implantation, initially only provided to profoundly deaf individuals, is now routine in people with substantial residual hearing. Although stimulation via a cochlear implant and hearing aid in the same ear has been shown to improve speech understanding, particularly in noise, and to increase the aesthetic quality of sound, almost nothing is known about the physiological mechanisms underlying these benefits. The broad aim of our project is to address this deficiency by measuring the patterns of neural activity evoked by speech sounds across the tonotopic axis in the inferior colliculus and auditory cortex and assess the extent to which the pattern of neural activity allows discrimination between the different speech sounds.Read moreRead less
Identifying the basis for perceptual stability and perceptual omission during saccadic eye movements. The ability to explore the world via eye movements is an important feature of visual capabilities. This project will establish how the brain maintains the perception of a stable and stationary world despite the several eye movements made each second. This knowledge will fill a conspicuous gap in the understanding of the human visual system.
Relationship of the functional architecture of the mammalian brain to its microcircuitry. The project seeks to understand a very fundamental issue in neuroscience: how the connectivity and architecture of the cortex are related to the functions of neurones in that area? This will be investigated by imaging the surface of the visual cortex of anaesthetised cats and monkeys as special visual patterns are shown to the eye/s. The overall picture gained of the active and inactive cortical areas will ....Relationship of the functional architecture of the mammalian brain to its microcircuitry. The project seeks to understand a very fundamental issue in neuroscience: how the connectivity and architecture of the cortex are related to the functions of neurones in that area? This will be investigated by imaging the surface of the visual cortex of anaesthetised cats and monkeys as special visual patterns are shown to the eye/s. The overall picture gained of the active and inactive cortical areas will be related to the properties of neurones in those areas and to those of individual input and output fibres. An optical imaging equipment will be acquired in 2004 using a recently awarded LIEF grant to the CI.Read moreRead less
Thalamic inputs and cortical microcircuitry underlying the functional architecture of the visual cortex. This project seeks to reveal the fundamental circuitry of the visual cortex that enables visual perception. Such understanding is essential not only for explaining many perceptual disturbances, but also for providing a neuronal basis for developing functionally useful prostheses for the blind.