Optimisation of cell culture and molecular typing for the characterisation of Cryptosporidium in water. Cryptosporidium is an important waterborne agent of diarrhoeal disease in people and animals. Improved methods for accurately detecting viable parasite stages recovered from water are a priority research need for the water industry. They are dependent upon improved in vitro cultivation procedures that can be combined with DNA-based assays for identifying species and strains of Cryptosporidi ....Optimisation of cell culture and molecular typing for the characterisation of Cryptosporidium in water. Cryptosporidium is an important waterborne agent of diarrhoeal disease in people and animals. Improved methods for accurately detecting viable parasite stages recovered from water are a priority research need for the water industry. They are dependent upon improved in vitro cultivation procedures that can be combined with DNA-based assays for identifying species and strains of Cryptosporidium and closely related protozoa recovered from freshwater. This project addresses these needs in a collaborative study between scientists at Murdoch University with expertise in both in vitro cultivation and genetic characterisation of Cryptosporidium, and scientists from two of the major water utilities in Australia.Read moreRead less
Coproantigen detection tests for diagnosis of intestinal parasitic nematode infection. The aim of this project is to develop new tests for detection of hookworm and Strongyloides, two common intestinal worm infections of humans. These tests offer the potential to replace current tests, namely stool microscopy and serodiagnosis, both of whose performance is unsatisfactory due to deficiencies in sensitivity, specificity and operator convenience. The tests will rely on monoclonal antibodies to dete ....Coproantigen detection tests for diagnosis of intestinal parasitic nematode infection. The aim of this project is to develop new tests for detection of hookworm and Strongyloides, two common intestinal worm infections of humans. These tests offer the potential to replace current tests, namely stool microscopy and serodiagnosis, both of whose performance is unsatisfactory due to deficiencies in sensitivity, specificity and operator convenience. The tests will rely on monoclonal antibodies to detect parasite products in stool. Such testing technology is amenable to configuration in a robust format, suitable for large-scale manufacture. Given the worldwide prevalence of these parasites, the tests will have a market potential of international significance.Read moreRead less
Gastrointestinal parasites and their diagnosis. Gastrointestinal disease such as diarrhoea, abdominal pain and irritable bowel syndrome are common in the Australian population and there are a wide variety of causes, including potentially parasites. The parasite Dientamoeba fragilis has, until recently, been overlooked as a cause of human disease, but recent studies have confirmed its role as a pathogen. This project seeks to improve the diagnosis of this organism in faeces and this development ....Gastrointestinal parasites and their diagnosis. Gastrointestinal disease such as diarrhoea, abdominal pain and irritable bowel syndrome are common in the Australian population and there are a wide variety of causes, including potentially parasites. The parasite Dientamoeba fragilis has, until recently, been overlooked as a cause of human disease, but recent studies have confirmed its role as a pathogen. This project seeks to improve the diagnosis of this organism in faeces and this development will allow effective treatment to be used in patients thereby ameliorating disease.Read moreRead less
Molecular Ecology of Cryptosporidium in Rural and Urban NSW. Cryptosporidiosis is of particular concern in rural NSW. Significant increases in the incidence of cryptosporidiosis coupled with repeated outbreaks in regional areas demonstrate a need for improved management strategies. This project will identify transmission patterns of this disease relevant to the Australian environment, which is essential for future control. The reduction of economic costs for medical treatment of cryptosporidiosi ....Molecular Ecology of Cryptosporidium in Rural and Urban NSW. Cryptosporidiosis is of particular concern in rural NSW. Significant increases in the incidence of cryptosporidiosis coupled with repeated outbreaks in regional areas demonstrate a need for improved management strategies. This project will identify transmission patterns of this disease relevant to the Australian environment, which is essential for future control. The reduction of economic costs for medical treatment of cryptosporidiosis and improved on-farm management through control of Cryptosporidium transmission from farm animals are significant to public health and of national and community benefit. The primary national benefit will be improved rural community health through prevention of cryptosporidiosis outbreaks.Read moreRead less
Establishment of Therapeutically Relevant Animal Models and Markers for Crohn's Disease. Crohn's disease is a devastating life long disease, affecting 0.5% of the world population. There is urgent economic and social need to develop new and better drugs to treat the symptoms and underlying cause of this debilitating disease. Social benefits include the improved quality of life of sufferers that positively impacts society. Economic benefit includes income derived from commercialisation of rese ....Establishment of Therapeutically Relevant Animal Models and Markers for Crohn's Disease. Crohn's disease is a devastating life long disease, affecting 0.5% of the world population. There is urgent economic and social need to develop new and better drugs to treat the symptoms and underlying cause of this debilitating disease. Social benefits include the improved quality of life of sufferers that positively impacts society. Economic benefit includes income derived from commercialisation of research outcomes and the contribution this project makes to high value employment in the biotechnology sector.Read moreRead less
The Role of High-Frequency Antigenic Variation in The Pathogenesis of Mycoplasma infection. The main goal of the proposed project is to understand the molecular mechanisms of phase/antigenic variation and its effects on mycoplasma pathogenesis. In this context I will use the well-characterised Mycoplasma synoviae haemagglutinin, MSPA, to establish the role of its phase-variable expression in the type and extent of M. synoviae disease. Additionally, the relationship between MSPA phase variation a ....The Role of High-Frequency Antigenic Variation in The Pathogenesis of Mycoplasma infection. The main goal of the proposed project is to understand the molecular mechanisms of phase/antigenic variation and its effects on mycoplasma pathogenesis. In this context I will use the well-characterised Mycoplasma synoviae haemagglutinin, MSPA, to establish the role of its phase-variable expression in the type and extent of M. synoviae disease. Additionally, the relationship between MSPA phase variation and gene rearrangements in the MSPB-encoding gene will be elucidated. The results will contribute to our understanding of the pathogenesis of bacterial disease and of the evolution of pathogenic mechanisms in bacterial pathogens.Read moreRead less