Early Predictors And Body Composition Changes Associated With Adiposity Rebound
Funder
National Health and Medical Research Council
Funding Amount
$201,650.00
Summary
Overweight and obesity rates are increasing in children, and overweight children have higher risk of adult obesity and therefore diseases including heart attack, stroke and diabetes. The preschool years may offer opportunities to divert children from the path to obesity, before poor physical activity and nutritional habits become firmly established. Adiposity rebound is the time in a child's life (usually around 5 to 6 years of age) when body mass index (BMI) begins to increase after a steady de ....Overweight and obesity rates are increasing in children, and overweight children have higher risk of adult obesity and therefore diseases including heart attack, stroke and diabetes. The preschool years may offer opportunities to divert children from the path to obesity, before poor physical activity and nutritional habits become firmly established. Adiposity rebound is the time in a child's life (usually around 5 to 6 years of age) when body mass index (BMI) begins to increase after a steady decline in BMI in the preschool years. Early adiposity rebound is associated with increased BMI in later life. We don't yet know whether the early adiposity rebound causes the higher BMI, or whether it is simply an early sign of an already-established pathway of behavioural and environmental risk. We need a much better understanding of predictors of early adiposity rebound and the changes that occur to determine if age at adiposity rebound is a modifiable risk factor for adult obesity. This study will document the process and timing of adiposity rebound and the changes in percent body fat and lean body mass that occur during that time. We will also determine whether risk and protective factors for early adiposity rebound and overweight at age 6 years are the same or different. We will study over 400 children on whom extensive data have been collected since birth, including period of gestation, birth weight and length. At various stages during their first two years of life, height, weight, feeding patterns and development were recorded. We will measure BMI and perform bioimpedance analysis (BIA) on these children six times between 4 and 6 years of age. BIA provides a measure of body fat and lean mass that is well accepted by children. This will help determine the relationship between changing BMI at different ages and the fat-to-lean mass ratios associated with those changes. This study is the first to consider body composition changes during adiposity rebound.Read moreRead less
The Role Of Past Sun Exposure, Infection History And Other Exogenous Factors In Multiple Sclerosis
Funder
National Health and Medical Research Council
Funding Amount
$92,011.00
Summary
Multiple Sclerosis (MS) is a chronic autoimmune inflammatory disease of the brain and spinal cord that leads to various degrees of disability. The causes of MS are not yet known, and there is presently no cure. However, there is strong evidence that both an inherited susceptibility and environmental factors are important. This environmental case control study will be conducted in Tasmania and will run concurrent to a genetic project on MS which allows assessment of gene-environment interactions. ....Multiple Sclerosis (MS) is a chronic autoimmune inflammatory disease of the brain and spinal cord that leads to various degrees of disability. The causes of MS are not yet known, and there is presently no cure. However, there is strong evidence that both an inherited susceptibility and environmental factors are important. This environmental case control study will be conducted in Tasmania and will run concurrent to a genetic project on MS which allows assessment of gene-environment interactions. It focuses on infections, timing of childhood infections and long term sun exposure. It has been suggested that MS may be due to an immune disturbance following viral infection and that the timing of childhood infections may be initially important. Also, in Australia, there is a sevenfold increase in MS prevalence as one moves from Queensland to Tasmania. This latitudinal gradient might be due to ultra violet radiation, through an influence on immune function. Beside those main focuses, the study will include other environmental factors like chemicals, diet and vaccinations. Hopefully this project will contribute to a better understanding of the causes of MS, which are relevant for preventative strategies and devising optimal treatment.Read moreRead less
Trials To Prevent The Transmission And Complications Of Sexually Transmitted Infections, Including HIV
Funder
National Health and Medical Research Council
Funding Amount
$306,123.00
Summary
Sexually transmitted infections (STIs) are important causes of illness in some sectors of the community. Even though they can be effectively prevented and treated, many health services do not give them priority. This research project will study ways in which general practitioners can better diagnose and treat STIs. We will carry out trials that compare new approaches to supporting doctors in this area, that involve a mixture of training, reminders and technical support as needed.
Thai Health-risk Transition: A National Cohort Study
Funder
National Health and Medical Research Council
Funding Amount
$1,231,214.00
Summary
Thailand's disease patterns are changing. Some changes are good but others, like emerging diabetes, heart disease and injuries, are of concern. Development-related 'health transition' can be optimised if there is information on new causes of disease - immediate risk factors, and 'upstream' economic, cultural and environmental influences. The team will study this health-risk transition in the whole Thai population - looking back 50 years, then forwards in 100,000 Sukothai Thammathirat Open Univer ....Thailand's disease patterns are changing. Some changes are good but others, like emerging diabetes, heart disease and injuries, are of concern. Development-related 'health transition' can be optimised if there is information on new causes of disease - immediate risk factors, and 'upstream' economic, cultural and environmental influences. The team will study this health-risk transition in the whole Thai population - looking back 50 years, then forwards in 100,000 Sukothai Thammathirat Open University students living all over Thailand and followed for four years. The team will map changing risks and upstream influences, produce information for Thai preventive programs, boost regional research capacity, create a regional partnership, and support PhD and postdoctoral training.Read moreRead less
Cancer And Low-dose Radiation - Possible Effects Of CT Scans In Childhood
Funder
National Health and Medical Research Council
Funding Amount
$476,650.00
Summary
Despite 100 years of research there is uncertainty about effects of low dose radiation from background and medical X-rays. We will measure the incidence of cancer in Australians exposed to CT scans (medical X-rays) as children between 1985 and 2005. Our results, from follow-up to 2009, will show whether there is a small but signicantly increased risk of cancer and guide further improvement in radiation safety standards if these prove to be necessary.