Understanding The Sources Of Campylobacter In Australia
Funder
National Health and Medical Research Council
Funding Amount
$546,720.00
Summary
Campylobacter is a key cause of foodborne disease in Australia, with rates of illness amongst the highest in the world. Our project brings together academic, government and industry partners to harness new genetic techniques to better identify sources and risk factors for Campylobacter infection. The project will assist health agencies to include genomics in public health, with findings directly informing government policies and industry practices to minimise disease caused by Campylobacter.
COMPARE:Collaborative Management Platform For Detection And Analyses Of (Re-) Emerging And Foodborne Outbreaks In Europe
Funder
National Health and Medical Research Council
Funding Amount
$427,959.00
Summary
COMPARE a large EU project intends to speed up the detection of, and response to disease outbreaks among humans and animals worldwide, through the use of new genome technology and disease-specific information. The aim is to reduce the impact and cost of disease outbreaks. This project allows Australian researchers to participate in this system of detecting and investigating foodborne disease outbreaks that cross international borders.
Molecular Typing Of Salmonella Enterica Serovar Typhimurium
Funder
National Health and Medical Research Council
Funding Amount
$272,545.00
Summary
Salmonella mainly causes food poisoning and is a significant human health problem. Different Samonella forms are identified by serotyping and many serovars have been given a name . There are more than 2000 serovars. The best known serovar is Typhimurium which is the cause of 40% of salmonella infections. Typhimurium is so frequently involved in infections it is necessary to further divide it for outbreak investigations and long term monitoring of the organism. The only widely used method to subd ....Salmonella mainly causes food poisoning and is a significant human health problem. Different Samonella forms are identified by serotyping and many serovars have been given a name . There are more than 2000 serovars. The best known serovar is Typhimurium which is the cause of 40% of salmonella infections. Typhimurium is so frequently involved in infections it is necessary to further divide it for outbreak investigations and long term monitoring of the organism. The only widely used method to subdivide Typhimurium is phage typing, which is done only in major laboratories (2 in Australia). Phage typing is based on lysis patterns of a test isolate to a set of 34 phages. Phage typing has played a crucial role in tracking the organism, for example the emergence of a multidrug resistance new type (DT204c) in UK and US. The technique is simple but the problem is that reactions vary with slight change in conditions and scoring the reaction results is very subjective. We propose to replace the typing system with one based on the DNA method PCR, so it will be simple, fast and accurate. We will use a DNA fingerprinting technique called AFLP (amplified fragment length polymorphism) to find markers (DNA segments) that are specific to phage types and design PCR assays based on the markers we find. Such a typing system will retain the essence of phage typing by providing continuity of the valuable epidemiological database on phage types. Further the typing system could easily be expanded to accommodate any new types by finding more markers while the current phage typing system is very difficult to expand (last done in 1977 and is behind in our needs). This project will establish a general approach for designing typing systems based on molecular biology for other pathogens and could have a major impact on the surveillance of bacterial infections in the 21st century.Read moreRead less
Structural Studies Of Bacterial Pore-forming Protein Toxins
Funder
National Health and Medical Research Council
Funding Amount
$509,017.00
Summary
In this project the three-dimensional structures of proteins that form pores in membrane cell walls will be determined. These proteins are bacterial toxins and knowledge of their structure may prove useful in the design of new antibiotics. This project will focus on a class of toxins called the cholesterol-dependent cytolysins which are released by Gram positive bacteria such as Clostridia and Streptococcus and which cause a variety of nasty infectious diseases such as gas gangrene, pneumonia an ....In this project the three-dimensional structures of proteins that form pores in membrane cell walls will be determined. These proteins are bacterial toxins and knowledge of their structure may prove useful in the design of new antibiotics. This project will focus on a class of toxins called the cholesterol-dependent cytolysins which are released by Gram positive bacteria such as Clostridia and Streptococcus and which cause a variety of nasty infectious diseases such as gas gangrene, pneumonia and meningitis. The three-dimensional structures will be elucidated using X-ray crystallography. Protein crystallography is the study of three-dimensional shapes of proteins at near atomic resolution. In this method proteins are made to form crystals. X-ray beams are then shone on the crystals causing the X-rays to scatter in a pattern which is characteristic of the protein's three-dimensional shape. Knowledge of the structure of proteins is necessary for the complete understanding of their biological activity and is also very useful for the rational design of new drugs that may alter their activity.Read moreRead less
Structural Studies Of Bacterial Pore-forming Protein Toxins
Funder
National Health and Medical Research Council
Funding Amount
$267,750.00
Summary
The general aim of this work is to investigate the three-dimensional structures of important target proteins using X-ray crystallography. Protein crystallography is the study of the three-dimensional shapes of proteins at near atomic resolution. In this method proteins are made to form crystals. X-ray beams are then shone on the crystals causing the X-rays to scatter in a pattern which is characteristic of the protein's three-dimensional shape. Knowledge of the structure of proteins is necessary ....The general aim of this work is to investigate the three-dimensional structures of important target proteins using X-ray crystallography. Protein crystallography is the study of the three-dimensional shapes of proteins at near atomic resolution. In this method proteins are made to form crystals. X-ray beams are then shone on the crystals causing the X-rays to scatter in a pattern which is characteristic of the protein's three-dimensional shape. Knowledge of the structure of proteins is necessary for the complete understanding of their biological activity and is also very useful for the rational design of new drugs that may alter their activity. Approximately, one third of the body's proteins are attached to membranes. However, relatively little is known about the three-dimensional structures of this important class of proteins. In this project the structures of proteins that form pores in membrane cell walls are being determined. Thses proteins are bacterial toxins and knowledge of their structure may prove useful in the design of new antibiotics.Read moreRead less
Blocking Paths To Suicide: A Data Linkage Program To Identify Modifiable Risk Factors For Self-poisoning And Suicide In Australia
Funder
National Health and Medical Research Council
Funding Amount
$501,205.00
Summary
This research examines the relationship between medicines use and suicide. Some medicines may be more toxic than others and identification of these could allow for targeted restrictions. In addition, medication use practices may influence self-harm and suicide. This research will identify patterns (e.g. non-adherence prior to death, incorrect doses) to pinpoint beneficial or harmful practices. This will improve outcomes and help guide suicide prevention through targeted legislation and policy.
The study builds on strong existing NHMRC funded collaborative links between Sri Lanka and Australia in research which has reduced mortality and provided better evidence for treatment of poisoning. Current measurements of kidney damage are slow to change and insensitive. We will study new ways to measure acute kidney toxicity in people with poisoning and snakebite. We aim to determine whether these new measures are better predictors of the short and long term effects on the kidney.
Reducing Deaths From Pesticide Poisoning - Establishing A Regional Toxicology Research Centre.
Funder
National Health and Medical Research Council
Funding Amount
$739,727.00
Summary
The World Health Organization estimates suggest nearly half a million people die from acute pesticide poisoning in the Asia-Pacific region each year. The Sri Lankan project will be the first attempt to systematically test whether a range of strategies can reduce long-term neurological damage and deaths from pesticides. The Australian-Sri Lankan Collaboration will, over the next five years, aim to improve assessment of sub-acute and long-term morbidity; promote 'evidence-based' treatment; develop ....The World Health Organization estimates suggest nearly half a million people die from acute pesticide poisoning in the Asia-Pacific region each year. The Sri Lankan project will be the first attempt to systematically test whether a range of strategies can reduce long-term neurological damage and deaths from pesticides. The Australian-Sri Lankan Collaboration will, over the next five years, aim to improve assessment of sub-acute and long-term morbidity; promote 'evidence-based' treatment; develop new antidotes (and assess their cost effectiveness), and see if pesticide regulation can reduce the rate of severe or fatal poisoning. If successful, this program may become a model for the region as to how to substantially reduce this largely hidden tragedy.Read moreRead less
Comparing The Role Of Takeaways In Methadone Maintenance Treatment In NSW And Victoria
Funder
National Health and Medical Research Council
Funding Amount
$291,000.00
Summary
This project will make a direct and major contribution to improving methadone maintenance treatment (MMT) provision in Australia. The recent announcement of the continuation of funding for the Federal Government's Illicit Drug Diversion Initiative demonstrates an ongoing commitment to make drug treatment programs more accessible. MMT is currently the primary treatment for opioid addiction in Australia. However, concerns about the potential negative effects of aspects of the programs, in particul ....This project will make a direct and major contribution to improving methadone maintenance treatment (MMT) provision in Australia. The recent announcement of the continuation of funding for the Federal Government's Illicit Drug Diversion Initiative demonstrates an ongoing commitment to make drug treatment programs more accessible. MMT is currently the primary treatment for opioid addiction in Australia. However, concerns about the potential negative effects of aspects of the programs, in particular, takeaway dosing and diversion of methadone to street sale (which has been linked to accidental fatal overdose (Lintzeris, et al., 1999)), remain unresolved. This study will map clients', healthcare workers' and policy makers' attitudes towards takeaways in NSW and Victoria, and investigate the dynamics of methadone diversion in relation to the different takeaway policies in the two states. In doing so, the project will consider how the two different state policies on takeaways stack up. It will contribute essential and detailed data on takeaways and diversion, from which effective, safe and socially responsible methadone maintenance treatment policy can be developed.Read moreRead less