20 Year Study Of Skin Cancer In A Queensland Community
Funder
National Health and Medical Research Council
Funding Amount
$396,415.00
Summary
Skin cancers are by far the commonest cancers diagnosed in Australia. Even though it is known that sun exposure in excess causes skin cancers there are complexities about the causes, especially of basal cell carcinoma (BCC) -the major type of skin cancer- that are still not understood. Relative intensity of sun exposure and perhaps its timing with respect to age in life may well be critical factors. We aim to study these causes in very great detail by collating information that has been gathered ....Skin cancers are by far the commonest cancers diagnosed in Australia. Even though it is known that sun exposure in excess causes skin cancers there are complexities about the causes, especially of basal cell carcinoma (BCC) -the major type of skin cancer- that are still not understood. Relative intensity of sun exposure and perhaps its timing with respect to age in life may well be critical factors. We aim to study these causes in very great detail by collating information that has been gathered over a 20 year period in a community-based skin cancer study in Nambour, Qld as well as performing some laboratory tests on skin cancer tissue collected from participants. This 3-year project will enable the full realisation of the potential of this esource-20 years in the making- with its wealth of information for answering questions about skin cancer decelopment and preventability. It should finally provide us with a clearer rationale for 'prevention of skin cancer' than is currently available. In addition we shall assess the costs of treatment of skin cancer in general and for the individual, and how much preventive practices for skin cancer might save the health budget, by using the releavnt data collected from this community sample.Read moreRead less
The Role Of EBV And HHV-6 Infection In Demyelinating Disease With A Consideration Of Past UVR Exposure.
Funder
National Health and Medical Research Council
Funding Amount
$305,800.00
Summary
The marked increase in immune disorders over the past fifty years is thought to reflect modern environmental and lifestyle factors, rather than changes in diagnosis. The hypothesis that has the most evidence to support it is the 'hygiene hypothesis'. That is, that a reduction in early life infection among modern children leads to immune system dysfunction and thus an increase in immune disorders. Delayed child infection, particularly of Epstein-Barr Virus has been prospectively linked to multipl ....The marked increase in immune disorders over the past fifty years is thought to reflect modern environmental and lifestyle factors, rather than changes in diagnosis. The hypothesis that has the most evidence to support it is the 'hygiene hypothesis'. That is, that a reduction in early life infection among modern children leads to immune system dysfunction and thus an increase in immune disorders. Delayed child infection, particularly of Epstein-Barr Virus has been prospectively linked to multiple sclerosis (MS) risk. This project aims to document the role of herpes virus (EBV, HHV-6) infection in the onset of first demyelinating events, a precursor to MS. The strength of this proposal is that it lies within an existing study framework - the Ausimmune Study, allowing detailed exploration of related associations with latitude, early life infant contact and past sun exposure. The incidence of MS has doubled from 1.2-100,000 to 2.4-100,000 from 1961 to 1996 in Newcastle, Australia. Although incidence is low, the disease has a median age of first onset of 24 years and progresses to serious disability even with immunomodulatory therapy (50% will need assistance in walking within 13 years) thus the current prevalence of 1 per 1,000 adults in Tasmania and 0.8 per 1,000 in Newcastle represent a serious burden of morbidity.Read moreRead less
A Randomised, Double Blinded Intervention Study To Assess Health Effects Of Drinking Water From Rainwater Tanks
Funder
National Health and Medical Research Council
Funding Amount
$860,510.00
Summary
We are planning to perform a study in Adelaide to assess if drinking untreated rainwater causes a health risk. Eight years into a drought Australia's water sources are becoming increasingly depleted, so we need to reduce water consumption and consider using alternative sources of water. Increased use of rainwater is one of a number of solutions available. However, current recommendations state that rainwater can be safely used for purposes other than drinking, but because of potential contaminat ....We are planning to perform a study in Adelaide to assess if drinking untreated rainwater causes a health risk. Eight years into a drought Australia's water sources are becoming increasingly depleted, so we need to reduce water consumption and consider using alternative sources of water. Increased use of rainwater is one of a number of solutions available. However, current recommendations state that rainwater can be safely used for purposes other than drinking, but because of potential contamination and limited evidence regarding safety, drinking untreated rainwater is not approved by state health departments. The main outcome of this study will be to determine whether drinking untreated water from rainwater tanks poses a significant health risk. Additionally, we will determine if specific tank or maintenance characteristics can be identified that increase illness risk. The study design consists of following the health of 300 families who drink unboiled rainwater. Families will have a special tap installed that draws water through a water treatment unit (WTU). Half the families will have a working WTU and half will have a sham unit identical in appearance. The functional units sterilise water to remove any microorganisms present, while the sham filters have no effect. All participating families will keep a health diary for one year to record how often they suffer gastroenteritis. Neither the families nor the research workers will know which type of filter has been fitted. Water samples will be collected from selected households. At the end of a year the number of illnesses in the two groups will be compared. If those drinking rainwater from a sham filter suffer more often, then rainwater would be implicated as a source of gastroenteritis. This study will provide health authorities with a better understanding of the relationship between rainwater consumption and human health, and will provide data regarding safe uses of this alternative water source.Read moreRead less
Impact Of An Ivermectin Mass Drug Administration Program Against Endemic Scabies And Strongyloidiasis
Funder
National Health and Medical Research Council
Funding Amount
$1,289,786.00
Summary
Overseas studies suggest sustainable and long term benefits can be obtained through the use of ivermectin in mass drug administration programs to control parasitic infections. Our study will be a critical first step in establishing if such a program can be successful in a remote Indigenous community setting, where the disease burden from scabies and strongyloidiasis (threadworm infections) is very high.