The virtual human knee. This project aims to investigate the Virtual Human Knee (VHK) which provides a baseline knowledge about knee mechanics in healthy individuals and a tool for studying knee mechanics in silico. The new knowledge can be used for identifying individuals most at risk for injury, developing solutions for preventing injury and for assessing knee reconstruction and implantation methods. As such, VHK will mitigate the burden of knee injury to Australia and worldwide by progressing ....The virtual human knee. This project aims to investigate the Virtual Human Knee (VHK) which provides a baseline knowledge about knee mechanics in healthy individuals and a tool for studying knee mechanics in silico. The new knowledge can be used for identifying individuals most at risk for injury, developing solutions for preventing injury and for assessing knee reconstruction and implantation methods. As such, VHK will mitigate the burden of knee injury to Australia and worldwide by progressing disciplines including anatomy, bio-mechanics, sport science, rehabilitation, surgery and medical devices.Read moreRead less
Three-dimensional Simulation of Trabecular Bone Remodelling. Nearly 2 million Australians currently suffer from osteoporosis. Statistics indicate that 25% of Australian women and 17% of men will develop an osteoporotic fracture. The cost of osteoporosis is $7.4 billion per annum; the numbers of affected individuals and costs are expected to continue increasing. Clearly, improvements to osteoporosis diagnosis, fracture risk assessment, and effective treatments are still urgently needed. The p ....Three-dimensional Simulation of Trabecular Bone Remodelling. Nearly 2 million Australians currently suffer from osteoporosis. Statistics indicate that 25% of Australian women and 17% of men will develop an osteoporotic fracture. The cost of osteoporosis is $7.4 billion per annum; the numbers of affected individuals and costs are expected to continue increasing. Clearly, improvements to osteoporosis diagnosis, fracture risk assessment, and effective treatments are still urgently needed. The proposed project aims to create a tool for understanding the mechanisms of bone loss and predicting the effects of osteoporosis therapies. It represents a solid contribution to the knowledge base necessary for advancing osteoporosis research and ultimately reducing the incidence of osteoporotic fracture.Read moreRead less
A Tough Resilin Based Hydrogel Platform for Repair and Regeneration. This project seeks to develop novel hydrogels that mimic the properties of the body. In the field of repair and regeneration, our challenge is to make hydrogels that retain the fatigue and resilience properties of the natural body part, but are comprised of nontoxic material. Resilin is a remarkable material exhibiting a broad range of stimuli-responsive behaviour and outstanding elasticity. The project aim is to create a tough ....A Tough Resilin Based Hydrogel Platform for Repair and Regeneration. This project seeks to develop novel hydrogels that mimic the properties of the body. In the field of repair and regeneration, our challenge is to make hydrogels that retain the fatigue and resilience properties of the natural body part, but are comprised of nontoxic material. Resilin is a remarkable material exhibiting a broad range of stimuli-responsive behaviour and outstanding elasticity. The project aim is to create a tough and responsive hydrogel platform from this disordered protein family through greater understanding of structure and mechanical function and incorporating adequate stiffness, strength and biocompatibility. Such tough hydrogels would be applicable to a range of biotechnological applications (eg intervertebral disc repair or artificial skin tissue engineering).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.
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
Material structure and properties of mineralised tissue: An integrated micro and nano level investigation. Bone material properties have a direct influence on disorders of the skeleton, such as osteoporotic bone fragility fractures and osteoarthritis. It has been estimated that the direct and indirect cost of all fragility fractures and arthritis is over $20 billion per annum. The impact of this will be far-reaching with the social benefits ranging from earlier and more accurate diagnoses, to t ....Material structure and properties of mineralised tissue: An integrated micro and nano level investigation. Bone material properties have a direct influence on disorders of the skeleton, such as osteoporotic bone fragility fractures and osteoarthritis. It has been estimated that the direct and indirect cost of all fragility fractures and arthritis is over $20 billion per annum. The impact of this will be far-reaching with the social benefits ranging from earlier and more accurate diagnoses, to the development of preventative strategies to delay the onset of musculoskeletal disorders. These developments will translate into exciting commercial opportunities and overall economic growth and sustainability.Read moreRead less
Cellular bases of enteric neural circuitry underlying gut propulsion. This project aims to investigate the neural bases of behaviour in the mammalian gut. The Enteric Nervous System (ENS) plays a critical role in the propulsion of intestinal contents. This project expects to establish how specific functional classes of enteric neurons control propulsion along the gut. By recording the simultaneous neural activity from hundreds of different functional classes of enteric nerve cells simultaneously ....Cellular bases of enteric neural circuitry underlying gut propulsion. This project aims to investigate the neural bases of behaviour in the mammalian gut. The Enteric Nervous System (ENS) plays a critical role in the propulsion of intestinal contents. This project expects to establish how specific functional classes of enteric neurons control propulsion along the gut. By recording the simultaneous neural activity from hundreds of different functional classes of enteric nerve cells simultaneously, whilst recording intestinal muscle electrical activity and the movements of the gut wall, the project expects to identify which enteric neurochemical classes of neurons generate specific motor patterns along the intestine.Read moreRead less
Function and redundancy of SOX genes in the mammalian sex determination pathway. We are studying a mouse model of abnormal sex organ development in which genetically female mice develop as males. Our basic research program will lead to greater understanding of the genetic switch controlling the formation of male and female characteristics. This research should in turn provide insight into the causes of defects in patients with disorders of sex development, helping to inform the difficult clinica ....Function and redundancy of SOX genes in the mammalian sex determination pathway. We are studying a mouse model of abnormal sex organ development in which genetically female mice develop as males. Our basic research program will lead to greater understanding of the genetic switch controlling the formation of male and female characteristics. This research should in turn provide insight into the causes of defects in patients with disorders of sex development, helping to inform the difficult clinical decisions that need to be made for their treatment, and ultimately leading to better management and therapeutic strategies. Our studies may also provide unique methods to control the exotic mouse population, using the daughterless strategy.Read moreRead less
Molecular mechanisms regulating Ca2+ channels formed by Orai and STIM proteins. Store-operated calcium channels play a central role in the functions of all animal cells. They participate in generating the cellular responses to hormones, antigens, growth factors and other physiological stimuli. The aims of this project are to elucidate cellular mechanisms that regulate interaction between the molecular components of store-operated calcium channel, Orai and STIM. Using techniques of electrophysiol ....Molecular mechanisms regulating Ca2+ channels formed by Orai and STIM proteins. Store-operated calcium channels play a central role in the functions of all animal cells. They participate in generating the cellular responses to hormones, antigens, growth factors and other physiological stimuli. The aims of this project are to elucidate cellular mechanisms that regulate interaction between the molecular components of store-operated calcium channel, Orai and STIM. Using techniques of electrophysiology and molecular biology we expect to answer a fundamental question how STIM and Orai proteins interact to form functional store-operated calcium channels, and how the expression of STIM and Orai is regulated.Read moreRead less
Ultradian rhythms in basal metabolism; relationship to thermoregulation, cardiovascular function and behavioural arousal. Results from this project will be of basic theoretical biological importance, and may well provide a foundation for understanding basal metabolic regulation and its link with cardiovascular function. Our findings may provide a new foundation for discovering strategies that alter basal metabolic rate in a manner that improves health and reduces the incidence of obesity related ....Ultradian rhythms in basal metabolism; relationship to thermoregulation, cardiovascular function and behavioural arousal. Results from this project will be of basic theoretical biological importance, and may well provide a foundation for understanding basal metabolic regulation and its link with cardiovascular function. Our findings may provide a new foundation for discovering strategies that alter basal metabolic rate in a manner that improves health and reduces the incidence of obesity related disease such as heart attack and stroke. Thus this research proposal is of special relevance to National Research Priority 2: Promoting and Maintaining Good Health. Obesity and obesity-related medical conditions particularly affect older people, so that our research is also highly relevant to National Research Priority 2 sub-areas: Ageing well, Ageing productively.Read moreRead less