Experience-dependent Maturation And Plasticity Of The Cerebral Cortex Mediating Schizophrenia-like Endophenotypes
Funder
National Health and Medical Research Council
Funding Amount
$384,199.00
Summary
We will use genetic mouse models of schizophrenia to understand how specific abnormal behaviours are caused, focusing on cells and molecules within the brain. We will investigate how the gene mutations disrupts communication between, and production of, brain cells (neurons), and the role of mental and physical activity. The results of this project will not only have implications for understanding schizophrenia, but also for other brain disorders involving cognitive problems, such as dementia.
An Investigation Of The Aetiology Of Eating Disorders: Interactions Between Genes And Environmental Risk Factors.
Funder
National Health and Medical Research Council
Funding Amount
$225,000.00
Summary
Eating disorders, along with substance abuse, carry the highest risk of premature death, from both natural and unnatural causes, out of 27 mental disorder categories. Eating disorders, including anorexia nervosa, bulimia nervosa, and binge-eating disorder, affect about 6% of Australian women. Despite increased levels of research into the aetiology of eating disorders over the last 20 years, little knowledge exists as to which risk factors cause women to attempt weight loss to the point of increa ....Eating disorders, along with substance abuse, carry the highest risk of premature death, from both natural and unnatural causes, out of 27 mental disorder categories. Eating disorders, including anorexia nervosa, bulimia nervosa, and binge-eating disorder, affect about 6% of Australian women. Despite increased levels of research into the aetiology of eating disorders over the last 20 years, little knowledge exists as to which risk factors cause women to attempt weight loss to the point of increasing their risk of premature mortality. A review of twin studies in eating disorders concludes that there is increasing evidence to suggest that genetic factors play a role in the development of eating disorders. In addition, a recent series of studies, examining risk factors before the age of eating disorder onset, have found the following events to specifically predict the development of an eating disorder as opposed to another psychiatric condition: negative self-evaluation, parental alcoholism, low parental contact and high parental expectations, critical comments about weight, shape or eating during childhood, and childhood obesity. To date, no studies have attempted to integrate the findings from twin studies with the findings from early risk factor studies. Specifically, the ways in which genes interact with the environment to increase the chances of genetic vulnerability to an eating disorder being expressed have not been examined. The proposed project seeks to investigate precisely these interactions between genes and the environment, by examining a large number of female twins, aged 29-37. An enhanced understanding of how genes interact with the environment to either increase the chances that a woman will develop an eating disorder, or alternatively to protect a woman from developing an eating disorder, will benefit our understanding of how to target prevention and treatment strategies.Read moreRead less
Environmental Influences On Allergic Airways Disease From Birth To 8yrs: Long-term Outcomes Of A Randomised Trial (CAPS)
Funder
National Health and Medical Research Council
Funding Amount
$530,000.00
Summary
The prevalence of asthma in Australia is among the highest in the world yet no trials of primary prevention have been conducted which address the most common known causative agent (housedust mite allergens) and the most common known protective factor (dietary omega-3 fatty acids). Until the effectiveness of interventions which address these factors is certain, it will not be possible to give confident advice about how to prevent asthma. We are applying to continue follow up of the cohort of the ....The prevalence of asthma in Australia is among the highest in the world yet no trials of primary prevention have been conducted which address the most common known causative agent (housedust mite allergens) and the most common known protective factor (dietary omega-3 fatty acids). Until the effectiveness of interventions which address these factors is certain, it will not be possible to give confident advice about how to prevent asthma. We are applying to continue follow up of the cohort of the Childhood Asthma Prevention Study (CAPS) which has been underway since mid-1997. CAPS is a randomised controlled trial in which 616 infants at high risk of developing asthma because of a family history have been enrolled. The interventions include allergen reduction and dietary supplementation with omega-3 fatty acids. The interventions are designed to have maximum effect but be simple to implement by parents. Objective and subjective measurements of exposures, atopy, diet and asthmatic symptoms are being collected at 3 month intervals and at medical assessments when the children are 18 months, 3 and 5 years old. The interventions are stopped at age 5 years. The continued follow up of the cohort to age 8 will enable us to test conclusively if the interventions have had a positive effect. If so, CAPS will form the basis for a nationwide public health campaign which will have the potential to reduce the incidence of childhood asthma in Australia.Read moreRead less
KConFaB - A CONSORTIUM FOR RESEARCH ON FAMILIAL BREAST CANCER
Funder
National Health and Medical Research Council
Funding Amount
$1,624,711.00
Summary
Breast cancer is the most common disease of women. In families with an inherited form of breast cancer, nearly half the women in every generation can develop the disease. The aim of this Australia-wide study is to collect clinical, epidemiological and genetic data on approximately 700 of these severely-affected families. This national resource will be of great value for researchers who want to identify and characterize the genetic and life-style factors that affect the onset and progression of t ....Breast cancer is the most common disease of women. In families with an inherited form of breast cancer, nearly half the women in every generation can develop the disease. The aim of this Australia-wide study is to collect clinical, epidemiological and genetic data on approximately 700 of these severely-affected families. This national resource will be of great value for researchers who want to identify and characterize the genetic and life-style factors that affect the onset and progression of the disease. The data emerging from the study will lead to more accurate genetic counselling, better surveillance and, ultimately, better methods to prevent and treat the disease in families who inherit a predisposition to the disease.Read moreRead less
Molecular Mechanisms Mediating Experience-dependent Cellular Plasticity And Cognitive Deficits In Huntingtons Disease
Funder
National Health and Medical Research Council
Funding Amount
$550,387.00
Summary
We will use a genetic mouse model of Huntington's disease (HD), to understand how cognitive disorders (dementia) are caused, focusing on cells and molecules within the brain. We will investigate how the HD gene mutation disrupts communication between brain cells (neurons), as well as disrupting production of new cells (via adult neural stem cells). The results of this project will not only have implications for treating HD but also for other diseases involving dementia, such as Alzheimer's.
Identification Of Regulatory Protein Interactions On The CRH Promoter
Funder
National Health and Medical Research Council
Funding Amount
$216,600.00
Summary
CRH made in the brain controls our response to stress, and when made by the placenta it controls when birth will occur. Changes to the stress response can have important implications in heart disease, cancer, obesity and many other diseases. 70% of neonatal death is a result of premature birth, and pre-term babies that survive are more likely to have intellectual handicap or cerebral palsy. This research will help us understand CRH production during stress and pregnancy.
Deciphering Specific Roles For The Common Arnt Proteins In BHLH/PAS Transcription Factor Complexes
Funder
National Health and Medical Research Council
Funding Amount
$526,421.00
Summary
Understanding the precise control of neuronal genes related to appetite and obesity, and neuropsychiatric disorders and dementia, is complicated by some gene regulating proteins having highly related sequences. This project will eludcidate how two closely related proteins can determine specific target gene outputs, information important for designing methods to control activities of neurological disease related genes within cells.
Gene-environment Interactions In The Aetiology Of Myopia
Funder
National Health and Medical Research Council
Funding Amount
$671,285.00
Summary
The rapid rise in the prevalence of shortsightedness poses a major public health challenge. The Sydney Myopia Study has collected a large database on environmental risk factors, and has documented a major protective effect of children spending more time outdoors. Other studies suggest that myopia has a major genetic component. This study will collect DNA samples from over 4000 participants in the Sydney Myopia Study, and through genome-wide scanning, will look for gene-environment interactions.