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Investigating The Molecular Basis Of Emerging Drug Resistance In Scabies Mites
Funder
National Health and Medical Research Council
Funding Amount
$516,000.00
Summary
Scabies is a disease of the skin caused by the burrowing of the 'itch' mite Sarcoptes scabiei. In remote Aboriginal communities in northern and central Australia up to 60% of children can be infected. Scabies causes intense itching of the skin, resulting in skin damage through scratching, and serious secondary bacterial infections leading to kidney and heart disease. Some remote communities in the NT are documented to have the highest rates of kidney and heart disease in the world. The location ....Scabies is a disease of the skin caused by the burrowing of the 'itch' mite Sarcoptes scabiei. In remote Aboriginal communities in northern and central Australia up to 60% of children can be infected. Scabies causes intense itching of the skin, resulting in skin damage through scratching, and serious secondary bacterial infections leading to kidney and heart disease. Some remote communities in the NT are documented to have the highest rates of kidney and heart disease in the world. The location of the Menzies School of Health Research in this region where scabies is endemic has enabled us to undertake a number of studies on the disease. Our world first molecular study using microsatellite markers demonstrated that scabies mites on people were genetically distinct from those on dogs. This had important implications in control programs in the communities. Additional work has focused on laboratory studies to monitor the sensitivity of mites to current treatments used in community control programs and for the treatment of crusted scabies, a very severe and debilitating form of the disease. We have reported evidence of increasing resistance of scabies mites to topical 5%permethrin and documented both in vitro and clinical evidence of resistance to oral ivermectin. We now seek support to extend this work to identify at the molecular level the mechanisms of resistance and use this knowledge to design a diagnostic test. This work has both local and global implications. Scabies is a significant disease of children primarily in many indigenous and third world communities, as well as associated with nursing homes and HIV infection. The tools developed in this project will enable the assessment of drug treatment failures and assist in the development of more sensitive methods for monitoring resistance in the community, including the potential for reversing it. This will avoid the current global problems of resistance observed in other organisms such as headlice.Read moreRead less
Scabies is a significant disease of children particularly in indigenous communities. This project is aimed at working out how scabies mites resist medications used to treat them and to design a test for drug resistance. The tools developed in this project will enable the assessment of treatment failures and assist in the development of more sensitive methods for monitoring resistance in the community, including the potential for reversing it.
Rapid, Point Of Care Diagnostic Tests To Differentiate HA Subtypes In Patients Samples
Funder
National Health and Medical Research Council
Funding Amount
$168,293.00
Summary
A number of rapid, point-of-care tests are available for the detection of human and avian influenza types, but they vary greatly in sensitivity. In particular, these tests are based on current strains of H5 (avian) influenza, and may be unable to detect variant or pandemic strains, and negative results can give the false impression that patients do not have H5 influenza. We will develop rapid, point-of-care tests based on highly conserved parts of the virus, so that all H5 strains (current and f ....A number of rapid, point-of-care tests are available for the detection of human and avian influenza types, but they vary greatly in sensitivity. In particular, these tests are based on current strains of H5 (avian) influenza, and may be unable to detect variant or pandemic strains, and negative results can give the false impression that patients do not have H5 influenza. We will develop rapid, point-of-care tests based on highly conserved parts of the virus, so that all H5 strains (current and future) can be detected with equal sensitivity, along with the H1 and H3 strains that are currently found in man to provide a definitive diagnosis. These tests will be valuable in the identification and differentiation of pandemic influenza cases, allowing better use of public health resources, especially against a background of continuing standard (H1 and H3) influenza infections.Read moreRead less
In Vitro Diagnostic For First Trimester Risk Assignment Of Gestational Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$580,983.00
Summary
Pregnancy associated diabetes is a significant complication of pregnancy that has adverse health effects for both mother and baby. We have developed a multivariate algorithm to identify women during their first trimester of pregnancy who will subsequently develop gestational diabetes. The test requires further clinical validation to develop a commercial product and to implement it into clinical practice.
Repeat Expansions In Neurological Disease: Discovery, Interpretation And Enhanced Diagnostics
Funder
National Health and Medical Research Council
Funding Amount
$889,937.00
Summary
Identifying the mutation or genetic cause of disease in an individual is the first step in the provision of appropriate clinical care and treatment. This diagnostic process is being revolutionised through the ability to sequence the entire human genome in a time and cost effective manner. This project will enable identification of novel and known repeat expansion using whole genome sequencing, providing rapid diagnoses and better clinical care for individuals with neurogenetic disorders.
Evaluation Of Blood-based Screening Tests For Colorectal Neoplasia; From Biomarker Candidates To Accurate And Acceptable Tests
Funder
National Health and Medical Research Council
Funding Amount
$767,382.00
Summary
Current bowel cancer screening tests require people to collect a stool sample. While able to be done at home, this creates certain inconveniences and has other barriers to its use including being distasteful to some. Also, even though stool tests are useful they are not as accurate as we would like. We have discovered a molecule in the blood of patients with bowel cancer that could, if configured as a screening test, serve to be of even greater accuracy and also be more acceptable to people.
Development Of A Glucose-6-phosphate Dehydrogenase/ Haemoglobin Point-of-care Test For Malaria Elimination
Funder
National Health and Medical Research Council
Funding Amount
$560,608.00
Summary
Malaria elimination requires the use of specific anti-malarial drugs that treat the dormant malaria parasites in the liver. The use of these drugs in people with a deficiency of the glucose-6-phosphate dehydrogenase (G6PD) enzyme can lead to the catastrophic destruction of red blood cells and severe anaemia. There is a need for new G6PD diagnostic tests that can be delivered in remote, resource poor settings. This project will develop a G6PD point-of-care test to fast-track malaria elimination.
Comprehensive Clinical Tests Of Vestibular Function To Track Vestibular Compensation And Meniere’s Disease
Funder
National Health and Medical Research Council
Funding Amount
$390,625.00
Summary
This Project will apply new, fast, safe, comprehensive, balance tests we have developed to measure the function of the balance receptors of the inner ear. We will track changes in balance function during disease and recovery in the many, and increasing, number of Australian patients with balance disorders. These tests will give us insight into changes in the inner ear associated with severe attacks of vertigo and why some patients recover so poorly after damage to inner ear balance receptors.
MINIMAL RESIDUAL DISEASE IN ACUTE LYMPHOBLASTIC LEUKAEMIA
Funder
National Health and Medical Research Council
Funding Amount
$455,204.00
Summary
This project will study the extremely small numbers of leukaemic cells which are found in patients who are apparently healthy, but which sometimes lead to relapse. Very sensitive methods for measuring and studying low levels of leukaemic cells will be developed and used. To develop new better treatments in the long term, we will study why current treatment sometimes fails to eradicate the leukaemia, leading to patients relapsing. Clinicians currently need to obtain samples of bone marrow to asse ....This project will study the extremely small numbers of leukaemic cells which are found in patients who are apparently healthy, but which sometimes lead to relapse. Very sensitive methods for measuring and studying low levels of leukaemic cells will be developed and used. To develop new better treatments in the long term, we will study why current treatment sometimes fails to eradicate the leukaemia, leading to patients relapsing. Clinicians currently need to obtain samples of bone marrow to assess leukaemia, and the research will show whether this needs to be continued, or whether, with sensitive tests, samples of blood can be used instead. The study will involve collaboration with clinicians throughout Australia and overseas.Read moreRead less
Delivering Precision Diagnosis To Patients With Mitochondrial Disease: Using Digital Technologies To Enhance The Delivery Pathway To Provide An Accurate Genetic Diagnosis For Patients With Mitochondrial Disease
Funder
National Health and Medical Research Council
Funding Amount
$1,273,553.00
Summary
Mitochondrial disease (MD) is the most common inherited metabolic condition. MD can be diagnosed by using whole genome sequencing (WGS) and enables treatment and accurate family planning. We will create a web-base platform to support the diagnosis and treatment of patients with or suspected to have MD. Using a custom-built web-based platform, telemedicine and automated software we will integrate care by primary care givers and MD experts to deliver a precise genetic diagnosis to our MD patients.