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Conquering Schistosomiasis In China: The Last Mile
Funder
National Health and Medical Research Council
Funding Amount
$2,432,780.00
Summary
Schistosomiasis (Bilharzia), caused by Schistosoma bloodflukes, is an ancient disease in the People’s Republic of China (PRC). After decades of control, the Chinese authorities have slated their intention to eliminate the disease by 2020. However, current diagnostic methods underestimate the true infection rates so we contend this target is unattainable. Supplementation of current control measures with additional public health interventions will be required to achieve the goal of elimination.
I am a molecular biologist examining proteins from the parasitic scabies mite Sarcoptes scabiei, identified in a major expressed sequence tag program, for their roles in the host parasitic interaction and hence new possibilities in intervention. The proj
Advancing Enhanced Biosecurity Of Major Arboviral And Other Vector-borne Diseases In Australia Through Near Infrared Spectroscopy Technology
Funder
National Health and Medical Research Council
Funding Amount
$754,983.00
Summary
Infectious diseases transmitted by mosquitoes and ticks represent a significant health threat to the Australian biosecurity. Current detection methods for these pathogens are expensive, time consuming and require highly trained personnel. We propose to conduct a set of experiments to test an innovative, real time technique based on infrared light to identify infected mosquitoes and ticks and demonstrate its capacity as surveillance tool for vector control programs against these pathogens.
The Effectiveness, Acceptability And Cost Effectiveness Of The 'BALatrine'
Funder
National Health and Medical Research Council
Funding Amount
$792,169.00
Summary
We will undertake an intervention trial to assess the effectiveness of the “BALatrine” (a novel latrine) and hygiene education in the prevention of intestinal worms in Indonesia. This will provide an evidence base for translation of the intervention into public health policy and practice in Indonesia, the Asian region and beyond.
Sustainable Control And Elimination Of Neglected Tropical Diseases In The Asia-Pacific
Funder
National Health and Medical Research Council
Funding Amount
$428,065.00
Summary
The neglected tropical diseases (NTDs) are of major public health importance. Parasitic worms are the most common infecting almost a third of the world’s population. Multi-component integrated intervention strategies will be required for sustainable control and elimination of NTDs in the Asia-Pacific. I will develop and lead the first Australian Centre for Population Health Research on NTDs that will undertake research into their epidemiology, control and elimination.
A School-based Health Education Package For The Prevention Of Soil-transmitted Helminth Infections In China And The Philippines
Funder
National Health and Medical Research Council
Funding Amount
$1,488,949.00
Summary
We will undertake intervention trials in China and the Philippines, where infection rates are high, to evaluate a school-based health educational video targeting intestinal worms with the vision of developing a universal school-focused educational tool as part of multi-component integrated control programs targeting intestinal worm infections for Southeast Asia and beyond.
Does Environmental Change Drive The Spatiotemporal Transmission Dynamics Of Echinococcus Spp. In Ningxia, China?
Funder
National Health and Medical Research Council
Funding Amount
$654,548.00
Summary
Human echinococcosis is a chronic debilitating disease with a death rate that can exceed 90%. In China it is a major public health issue where recent environmental changes are likely to increase transmission rates, thus increasing the disease burden. This project will assess the impact of these environmental changes on the transmission of this disease over space and time, it will predict where new cases will arise, and determine the best methods for sustainable control and then elimination.
Transport Pathways Of Host-derived Iron In Schistosomes Parasites
Funder
National Health and Medical Research Council
Funding Amount
$322,091.00
Summary
This project will identify the diversity and biological roles of receptors for metabolic iron expressed on the body surface of the parasitic blood flukes (schistosomes) of humans. Schistosomes are a major health problem in many tropical countries and are responsible for significant human morbidity and lost productivity. Adult worms feed on human blood, from which derive amino acids for the production of many hundreds of eggs released per day into the human blood stream. The intense cellular resp ....This project will identify the diversity and biological roles of receptors for metabolic iron expressed on the body surface of the parasitic blood flukes (schistosomes) of humans. Schistosomes are a major health problem in many tropical countries and are responsible for significant human morbidity and lost productivity. Adult worms feed on human blood, from which derive amino acids for the production of many hundreds of eggs released per day into the human blood stream. The intense cellular response induced by parasite eggs trapped in body organs is the major cause of chronic human disease. We have discovered two intriguing phenomena of iron metabolism in schistosomes. Firstly, schistosomes have a greater reliance on iron than many other organisms, storing a surfeit in cells that produce the protein-rich egg shell. Secondly, a major transmembrane iron transporter of the parasites, thought to be involved in the uptake of iron, is found on the parasite external body surface and not in the parasite intestine. The extensive nutritional dependence of these worms on iron and the surface location of mediators of iron uptake raise the exciting possibility that we have uncovered a novel system that might be exploited for vaccine or drug-mediated control of these significant human parasites. If we can dissect the pathways schistosomes use to derive iron from their hosts, we may be able to generate vaccines to block this nutritional pathway, or use drugs to block embryogenesis. This project is a fact-finding mission that asks if the host-interactive tegument of these parasites is a major source of metabolic iron. Molecules we demonstrate to be present on the surface will be tested as vaccine candidates in mouse vaccine trialsRead moreRead less
Polysaccharide Biosynthesis As A New Drug Target In Leishmania Parasites
Funder
National Health and Medical Research Council
Funding Amount
$422,517.00
Summary
Leishmania are protozoan parasites that cause a number of important diseases in humans, afflicting more than 12 million people worldwide. There are currently few drugs that target infectious disease causing stages of these parasites. We have recently shown that Leishmania parasites accumulate a highly unusual sugar polymer when they infect mammalian cells, which appears to be important for infectivity. In this proposal , we will investigate how this sugar polymer is made, identify enzymes involv ....Leishmania are protozoan parasites that cause a number of important diseases in humans, afflicting more than 12 million people worldwide. There are currently few drugs that target infectious disease causing stages of these parasites. We have recently shown that Leishmania parasites accumulate a highly unusual sugar polymer when they infect mammalian cells, which appears to be important for infectivity. In this proposal , we will investigate how this sugar polymer is made, identify enzymes involved in its synthesis and develop new chemical tools for generating highly specific inhibitors of Leishmania sugar biosynthesis. This project will provide new insights into processes that are essential for the survival and infectivity of an improtant group of human pathogens, and lead to the development of new classes of enzyme inhibitors with anti-parasite activity.Read moreRead less