Investigating the molecular function of alpha-Haemoglobin stabilising protein. The research described in this proposal will provide new insights into haemoglobin regulation and redox chemistry in erythrocytes. Deregulation of these processes gives rise to a number of debilitating diseases, including varieties of anaemia and thalassaemia-in Australia it is estimated that 3% of the population could be carriers of b-thalassaemia mutations. Given the contribution of free aHb to the pathology of b-th ....Investigating the molecular function of alpha-Haemoglobin stabilising protein. The research described in this proposal will provide new insights into haemoglobin regulation and redox chemistry in erythrocytes. Deregulation of these processes gives rise to a number of debilitating diseases, including varieties of anaemia and thalassaemia-in Australia it is estimated that 3% of the population could be carriers of b-thalassaemia mutations. Given the contribution of free aHb to the pathology of b-thalassaemia, understanding the specific aHb-binding factor, AHSP is a goal of national significance. In the long term, manipulation of AHSP function through gene therapy may have a direct role in the treatment of thalassaemia.Read moreRead less
Analysing the protective role of platelets during malaria infection. Platelets protect the host during malarial infection. This project aims to study how platelets kill the malaria parasite by investigating the role of host molecules and their potential as novel antimalarial agents. The role of platelets in the pathogenesis of cerebral malaria syndrome will also be investigated.
Blood flow routes in muscle. Ageing well, ageing productively. The Australian population is ageing. The proportion of the population over the age of 65 is expected to greatly increase, reaching 22% by the year 2030. The prevalence of type 2 diabetes in this older population is thought to be ~20%, compared to ~6% in younger populations. An initial cause of type 2 diabetes may be microvascular dysfunction brought on by physical inactivity. Therefore this project addresses the concepts of microvasc ....Blood flow routes in muscle. Ageing well, ageing productively. The Australian population is ageing. The proportion of the population over the age of 65 is expected to greatly increase, reaching 22% by the year 2030. The prevalence of type 2 diabetes in this older population is thought to be ~20%, compared to ~6% in younger populations. An initial cause of type 2 diabetes may be microvascular dysfunction brought on by physical inactivity. Therefore this project addresses the concepts of microvascular function and microvascular fitness by using the latest technology to map blood flow routes in muscle under a number of relevant situations. Read moreRead less
Microdialysis for monitoring changes in microvascular flow patterns in muscle. Microdialysis is a technique for sampling interstitial fluid. Factors altering vascular delivery and removal of nutrients and hormones can affect muscle metabolism by altering exchange with the interstitium. This project focuses on microdialysis for assessing the impact of microvascular blood flow patterns on skeletal muscle metabolism and contractility. The aim is to develop and refine the technology, including equat ....Microdialysis for monitoring changes in microvascular flow patterns in muscle. Microdialysis is a technique for sampling interstitial fluid. Factors altering vascular delivery and removal of nutrients and hormones can affect muscle metabolism by altering exchange with the interstitium. This project focuses on microdialysis for assessing the impact of microvascular blood flow patterns on skeletal muscle metabolism and contractility. The aim is to develop and refine the technology, including equations, specifically for monitoring the nutritive fraction of blood flow in muscle by agents and factors relating to health and disease. This technique could be used for screening drugs in the treatment of diseases such as type 2 diabetes and related conditions.Read moreRead less
Visualising neuron-glia interactions in the injured central nervous system. The adult brain and spinal cord recovery poorly from injury. Attempts to overcome this problem include methods to promote the intrinsic regenerative capacity of injured neurons, and modulating the inhibitory extracellular environment to become permissive to regeneration. The goal of this project is to investigate an endogenous regenerative mechanism in the injured brain. This project will use the latest, cutting-edge mic ....Visualising neuron-glia interactions in the injured central nervous system. The adult brain and spinal cord recovery poorly from injury. Attempts to overcome this problem include methods to promote the intrinsic regenerative capacity of injured neurons, and modulating the inhibitory extracellular environment to become permissive to regeneration. The goal of this project is to investigate an endogenous regenerative mechanism in the injured brain. This project will use the latest, cutting-edge microscopy techniques to visualise whether the endogenous astrocyte protein metallothionein can promote regeneration in the injured nervous system of living zebrafish. The successful outcomes of this project will provide significant insight into understanding how the brain responds to injury.Read moreRead less
Membrane transporters in oxidative stress signalling and tolerance in plants. Oxidative stress imposed by salinity and drought severely limits agricultural crop production, resulting in multibillion dollar losses to farmers. Australia is one of the driest continents, with a significant proportion of arable land affected by salinity. Thus, developing salt- and drought tolerant species is critical to minimise the impact of these stresses on crop production. This project will reveal specific ionic ....Membrane transporters in oxidative stress signalling and tolerance in plants. Oxidative stress imposed by salinity and drought severely limits agricultural crop production, resulting in multibillion dollar losses to farmers. Australia is one of the driest continents, with a significant proportion of arable land affected by salinity. Thus, developing salt- and drought tolerant species is critical to minimise the impact of these stresses on crop production. This project will reveal specific ionic mechanisms mediating reactive oxygen species signalling and tolerance in plants. This will help achieve the above goal by providing plant breeders with vital information on key genes controlling oxidative stress tolerance in plants. Read moreRead less
Coping with flooding: nutrient transport in oxygen-deprived roots. Flooding damages plants by reducing oxygen supply to roots. The project will study effects of low oxygen on nutrient transport by roots. Understanding root functioning during low oxygen will enhance knowledge of plant acclimation to soil water logging. The project will contribute to the National Goal of 'Responding to Climate Change and Variability'.
Ultrasound in muscle vascular research, and gene therapy. This project focuses on ultrasound and microbubbles for the imaging of microvascular blood flow patterns in skeletal muscle and as a modality for drug delivery. The aim is to develop and refine technology specifically for (i) assessment of muscle microvascular flow in health and disease, and for (ii) delivery of state-of-the art gene constructs to endothelial cells that control blood flow in the muscle microvasculature. We anticipate impr ....Ultrasound in muscle vascular research, and gene therapy. This project focuses on ultrasound and microbubbles for the imaging of microvascular blood flow patterns in skeletal muscle and as a modality for drug delivery. The aim is to develop and refine technology specifically for (i) assessment of muscle microvascular flow in health and disease, and for (ii) delivery of state-of-the art gene constructs to endothelial cells that control blood flow in the muscle microvasculature. We anticipate improved technology for early diagnosis of impairment in microvascular flow relevant to muscle insulin resistance and novel therapeutics that improve muscle microvascular blood flow applicable to the treatment of diabetes.Read moreRead less
Selectivity enhancement in separation science using responsive materials. Increasing public demand for quality products from the chemical, pharmaceutical, biotechnology and food industries requires access to innovative methods of chemical analysis. This project will establish a new class of separation materials of enhanced selectivity and resolving power for the fast, sensitive and reliable analysis of these products.
Ion transporters regulating plant adaptive responses to salinity and the modes of their control by compatible solutes in plant cells. Plants respond to saline conditions by a significant elevation in the level of compatible solutes in the cytosol. It appears that these solutes are not directly involved in conventional osmoprotection, but instead have a regulatory role in cell metabolism. This project will apply a range of state-of-the-art biophysical and molecular techniques to investigate the m ....Ion transporters regulating plant adaptive responses to salinity and the modes of their control by compatible solutes in plant cells. Plants respond to saline conditions by a significant elevation in the level of compatible solutes in the cytosol. It appears that these solutes are not directly involved in conventional osmoprotection, but instead have a regulatory role in cell metabolism. This project will apply a range of state-of-the-art biophysical and molecular techniques to investigate the modes of control exercised by compatible solutes over the activity of major plasma membrane transporters involved in plant adaptive responses to salinity. The work will substantially advance our understanding of salt tolerance and will provide a sound basis for genetic engineering of salt tolerant crops.Read moreRead less