Early Influences Of Obesity And Fat Patterning In Children:critical Periods, Environmental Determinants, And Socio-cultu
Funder
National Health and Medical Research Council
Funding Amount
$1,152,711.00
Summary
Childhood obesity is an escalating public health problem both internationally and within Australia. Rates of childhood obesity in Australia are at one of the highest amongst developed nations. 25% of Australian children are currently overweight or obese. Obesity is a strong risk factor for chronic disease. In children, obesity is of concern because it is highly likely to persist and, during childhood, contributes to serious physical and mental health problems. A quarter of Australian children ar ....Childhood obesity is an escalating public health problem both internationally and within Australia. Rates of childhood obesity in Australia are at one of the highest amongst developed nations. 25% of Australian children are currently overweight or obese. Obesity is a strong risk factor for chronic disease. In children, obesity is of concern because it is highly likely to persist and, during childhood, contributes to serious physical and mental health problems. A quarter of Australian children are now carrying excess body fat. Because of these factors, prevention of obesity is paramount because success of current treatment options is limited and does not last. Especially harmful forms of fatness may originate in early life - the tendency to store fat in the abdominal region and the tendency to accrete fat rather than muscle (at any body size). For this reason, the early life determinants of obesity deserve special attention, even in the presence of society-wide factors conducive to obesity. Professor Moore and a group of researchers from the University of Adelaide will test the proposition that pre-birth and infancy is a ‘critical period’ for the development of obesity. The group aims to investigate whether there is a distinct period in early life for acquiring the predisposition to harmful forms of fatness. The project also aims to identify practical opportunities for prevention, focusing on mothers and their infants.Read moreRead less
Peroxisome Proliferator-activated Receptors: A Role In The Promotion Of Mammary Gland Carcinogenesis By Dietary Fat.
Funder
National Health and Medical Research Council
Funding Amount
$188,702.00
Summary
Breast cancer is a leading cause of death in Australian women. While some women have a hereditary predisposition to breast cancer, for most women a variety of factors are responsible for their disease. One thing that appears to be important as a cause of breast cancer is our diet. There are many components of the diet that may play a role. One important factor is the amount and type of fat that we consume. Just how dietary fat causes an increase in breast cancer is not known. What this project a ....Breast cancer is a leading cause of death in Australian women. While some women have a hereditary predisposition to breast cancer, for most women a variety of factors are responsible for their disease. One thing that appears to be important as a cause of breast cancer is our diet. There are many components of the diet that may play a role. One important factor is the amount and type of fat that we consume. Just how dietary fat causes an increase in breast cancer is not known. What this project aims to achieve is an understanding of how dietary fat and breast cancer are related. If we can understand this then we can rationally design treatments or a preventative strategy.Read moreRead less
Functional Screening Of Novel Genes In Craniofacial Development
Funder
National Health and Medical Research Council
Funding Amount
$540,075.00
Summary
Our faces are central to our ability to communicate, feed, breath and interact with each other. Birth defects that impact on the normal development of the face are common and affect not only the child but have a dramatic impact on the child's family as well. The genetic causes of most facial birth defects are unknown. This project will develop a method for determining how development of the face is controlled and will help identify genes that are responsible for facial birth defects.
Genetic And Molecular Dissection Of Laterality In The Developing Heart
Funder
National Health and Medical Research Council
Funding Amount
$379,370.00
Summary
Vertebrate animals display an external bilateral symmetry. However, most internal organs are located asymmetrically and show profound left-right structural asymmetries during development. For each species, these laterality characteristics are constant. Inherited laterality disorders occur in humans and, although rare, are associated with high mortality rates due to discordant cardiovascular development. Moreover, subtle anomalies of laterality may underlie a host of congenital heart abnormalitie ....Vertebrate animals display an external bilateral symmetry. However, most internal organs are located asymmetrically and show profound left-right structural asymmetries during development. For each species, these laterality characteristics are constant. Inherited laterality disorders occur in humans and, although rare, are associated with high mortality rates due to discordant cardiovascular development. Moreover, subtle anomalies of laterality may underlie a host of congenital heart abnormalities. In early embryogenesis, the newly-formed heart tube loops to the right, an event which establishes the correct alignment of the future cardiac chambers. The direction of heart looping is determined by genetic pathways that establish laterality in the early embryo. A component of this pathway is a TGFbeta-family signalling molecule, nodal, which is activated on the left side of the forming heart and other organs. Nodal then activates the transcription factor gene Pitx2. The aim of this project is to examine the consequences of genetic inactivation of the mouse nodal and Pitx2 genes in the heart, and to discover cardiac genes downstream of these genes. We will specifically test the hypothesis that laterality contributes to heart chamber formation in addition to setting the direction of looping. Ablation of these genes in the whole embryo leads to complex defects that preclude analysis of their functions in the heart. To achieve heart-specific deletion, we will use a conditional gene ablation technology that exploits the bacteriophage recombinase, Cre. Genes downstream of Pitx2 and Nodal will be discovered using microarray technology, which allows us to screen exhaustively for changes in gene expression between different tissues. This project will help us solve the complex genetic basis of congenital cardiac abnormalities in humans, and will contribute to our understanding of how heart chambers form, potentially useful in stem cell-based therapies for the failing heart.Read moreRead less
The Differential Innervation Of Fat - Potential To Target Visceral Adiposity
Funder
National Health and Medical Research Council
Funding Amount
$486,818.00
Summary
Levels of abdominal fat are closely correlated with metabolic syndrome. We propose experiments to identify unique characteristics (neurotransmitters or receptors) of neurons deep in the brain that project specifically to this type of fat or other less harmful subcutaneous fat. We can then test the functional significance of these unique elements in animal experimets involving gene knockdown or pharmacological approaches to modify their function and test the effect on fat distribution
Dietary Therapies For The Treatment Of Drug-resistant Epilepsy
Funder
National Health and Medical Research Council
Funding Amount
$69,757.00
Summary
Epilepsy affects about 225,000 Australians, with 30% of suffers still experiencing seizures despite being on medications. A reduction in seizures can significantly improve the health of people with epilepsy who do not respond to medications. Low carbohydrate, high fat diets are a well-established treatment option in children, but this has not previously been studied in Australian adults. The aim of this research is to evaluate if dietary therapies are an effective treatment in adult epilepsy.