Family And Environment In The Development Of Obesity And Precursors Of Diabetes And Heart Disease In Adolescence
Funder
National Health and Medical Research Council
Funding Amount
$284,770.00
Summary
Obesity is a serious public health problem in Australia. The rate of obesity appears to be rising. Currently 19-23% of children and adolescents are overweight or obese. Adolescence is a critical period for the development of obesity in both males and females. It is a time when new dietary habits, likely to promote fatness, are adopted and physical activity declines. Understanding the factors that drive these behaviours is essential for effective prevention of obesity and related diseases. In 199 ....Obesity is a serious public health problem in Australia. The rate of obesity appears to be rising. Currently 19-23% of children and adolescents are overweight or obese. Adolescence is a critical period for the development of obesity in both males and females. It is a time when new dietary habits, likely to promote fatness, are adopted and physical activity declines. Understanding the factors that drive these behaviours is essential for effective prevention of obesity and related diseases. In 1996-7, our research group studied a group of over 400 children who were aged 7-8 years, were living in western Sydney and were born at Nepean Hospital. In our new study, we plan to re-study this group of children, now in early adolescence. This will allow us to assess the family and environmental factors influencing physical activity and eating behaviour at the beginning of adolescence. The aims of our study are to: Measure changes during early adolescence in eating and physical activity behaviours that are likely to increase obesity risk Measure anthropometric and biochemical markers for future risk of type 2 diabetes and cardiovascular disease in both adolescents and their parents Identify factors in the family environment that influence changes in food intake and physical activity in early adolescence The study will be done in two phases, 18 months apart. The measurements will be done in the study centre at Nepean Hospital in western Sydney. We will measure the height, weight and skinfold thickness of the adolescents and, if possible, their parents. We will also ask the young people and their parents to complete questionnaires about the family food and activity environment and their level of physical activity and food intake. In addition, the adolescents will wear a light-weight activity monitor for 3 days ( to measure the level of activity), blood pressure will be measured and cholesterol and blood sugar levels checked.Read moreRead less
This project examines the mechanism of descent of the testis, which when abnormal, leads to the common anomaly in children of undescended testes. Our long-term aims is to find a non-surgical treatment for undescended testes, and these studies will significantly aid in that goal. We will look at a completely new testicular hormone as well as a molecule released from nerves to determine their exact role in the mechanism. This project should allow us to understand finally one of the unresolved puzz ....This project examines the mechanism of descent of the testis, which when abnormal, leads to the common anomaly in children of undescended testes. Our long-term aims is to find a non-surgical treatment for undescended testes, and these studies will significantly aid in that goal. We will look at a completely new testicular hormone as well as a molecule released from nerves to determine their exact role in the mechanism. This project should allow us to understand finally one of the unresolved puzzles of the anatomical differences between males and females.Read moreRead less
A Randomised Controlled Trial Of Whole Body Cooling On The Outcome Of Term Infants With Hypoxic Ischaemic Encephalopathy
Funder
National Health and Medical Research Council
Funding Amount
$386,732.00
Summary
The aim of this project is to investigate whether the brain damage caused by a serious lack of oxygen around the time of birth can be prevented or reduced by cooling the baby's temperature to 34C for 72 hours. The consequences, of a lack of oxygen, to the brain, around the time of birth can be devastating. Over 30% of those babies with abnormal brain function soon after birth either die or survive with severe permanent brain damage. There is no specific treatment for these infants. Evidence from ....The aim of this project is to investigate whether the brain damage caused by a serious lack of oxygen around the time of birth can be prevented or reduced by cooling the baby's temperature to 34C for 72 hours. The consequences, of a lack of oxygen, to the brain, around the time of birth can be devastating. Over 30% of those babies with abnormal brain function soon after birth either die or survive with severe permanent brain damage. There is no specific treatment for these infants. Evidence from studies in animals, as well as human adults and a small number of newborn infants, suggests that moderate body cooling started soon after birth in babies with serious abnormal brain function might prevent or reduce brain damage. This project is a multicentre trial, where infants who have suffered from a severe lack of oxygen around birth, are randomised to body cooling to 34C for 72 hours. This will be started as soon as possible after birth at their hospital of birth. If the baby needs to be transported this will be started when the newborn transport team collects the baby for transfer to a newborn intensive care unit. This new treatment will be compared with maintaining the baby's temperature at 37C. This project will investigate a new, simple and pragmatic treatment that might reduce brain damage. If it finds that cooling infants who have been severely deprived of oxygen is an effective and safe treatment, the information will be applicable to any of the very large number of babies around the world who suffer from a serious lack of oxygen around the time of birth.Read moreRead less
Factor V Leiden Mutation: A Contributory Factor For Cerebral Palsy?
Funder
National Health and Medical Research Council
Funding Amount
$72,595.00
Summary
Cerebral palsy is the commonest physical disability in childhood. It has a major impact on individuals and families. In a significant proportion of cases, the cause is unknown so further research is essential to define the reasons for this condition, and thereby develop preventative strategies. Two mutations have been identified that predispose carriers to develop blood clots (called thrombosis). These mutations are the Factor V Leiden mutation and the coagulation gene for prothrombin (also know ....Cerebral palsy is the commonest physical disability in childhood. It has a major impact on individuals and families. In a significant proportion of cases, the cause is unknown so further research is essential to define the reasons for this condition, and thereby develop preventative strategies. Two mutations have been identified that predispose carriers to develop blood clots (called thrombosis). These mutations are the Factor V Leiden mutation and the coagulation gene for prothrombin (also known as the G20210A mutation). If blood clots form in, or travel to the brain (embolism), they can obstruct the blood supply causing damage that may result in cerebral palsy in young children. Our research will investigate both mothers of children with cerebral palsy, and the children themselves. The study of the mothers will determine whether those that are carriers of these mutations are at an increased risk of having children with cerebral palsy. Factors that may precipitate the development of blood clots, such as smoking during pregnancy, will be investigated. The children with cerebral palsy will be studied to determine whether they carry the mutations, and if so, whether they have brain scan evidence of previous blood clots. Children will be tested for the mutation using the blood spot taken routinely early in life. These blood spots are stored on cards (Guthrie cards) and are available for research following parental consent. The mothers will be tested for the mutation by using a saliva sample and will also be interviewed to obtain details of their pregnancies. As a result of this project, useful information will be provided for families and health care providers. It will be established whether these mutations play a role in the genesis of cerebral palsy. In addition, data about possible factors which may increase the risk in carrier mothers, such as smoking, will be provided.Read moreRead less