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.
Defining Factors That Contribute To Individual Diversity In The Diet-health Axis
Funder
National Health and Medical Research Council
Funding Amount
$1,668,059.00
Summary
There is a complex interplay between nutrition and genetics such that one diet maybe good for some but not for others depending on genetic makeup. Preliminary experiments in flies and mice support this. We found that for some flies, diets high in fat are harmful resulting in short life but certain flies resist the harmful effects of fat and live a longer lives. We propose to unravel the gene-environment interaction and determine which genes might lead to optimal health outcomes on certain diets.
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.
Complex Statistical Analyses Of Genome-wide Association Studies Related To Breast And Prostate Cancers Using High Performance Supercomputing
Funder
National Health and Medical Research Council
Funding Amount
$656,073.00
Summary
Breast and prostate cancers are the most common cancers in Australian women and men. Simple analyses of genome-wide association (GWAS) studies explain only a fraction of why these cancers run in families. The University of Melbourne now has a supercomputer that can conduct much more complex analyses. We will apply these to the world’s GWAS data for breast and prostate cancers. We hope to learn more about the causes of these cancers, and expand an expert Australian workforce in supercomputing.
Impact Of Social Adversity On The Developmental Trajectory To Mental Illness: A Study Of A Whole-population Cohort Of Children At Familial High-risk For Psychotic Disorders
Funder
National Health and Medical Research Council
Funding Amount
$822,385.00
Summary
The objective of this study is to use the rich multi-generational data collection that we have assembled on the life course of a large whole-population birth cohort and their parents to address specific research questions on the contribution of social adversity to the pathogenesis of mental illness, taking into account the interplay of social adversity with genetic risk and the range of other contributing factors on the developmental trajectory to mental illness.
Investigating Tumour Initiation And Growth In A Panel Of Mice Defective In Epigenetic Reprogramming.
Funder
National Health and Medical Research Council
Funding Amount
$421,600.00
Summary
Until recently it was believed that cancer is always caused by mutations in genes. Now it has been proposed that chemical modifications to the DNA and the proteins that package the DNA may also initiate cancer. These "epigenetic" modifications control whether our genes are switched on or off. Epigenetic modifications are disrupted in cancer, but it is not known whether they can start tumour growth. I will study this using mouse models. This work may lead to preventative screening and new treatme ....Until recently it was believed that cancer is always caused by mutations in genes. Now it has been proposed that chemical modifications to the DNA and the proteins that package the DNA may also initiate cancer. These "epigenetic" modifications control whether our genes are switched on or off. Epigenetic modifications are disrupted in cancer, but it is not known whether they can start tumour growth. I will study this using mouse models. This work may lead to preventative screening and new treatments in humans.Read moreRead less
Insights Into The Epitranscriptome: Linking RNA Methylation And Intellectual Disability
Funder
National Health and Medical Research Council
Funding Amount
$426,878.00
Summary
The string of nucleotides in an RNA molecule can contain the information to make proteins or to regulate diverse biological processes. Chemical modifications can be added to certain nucleotides that impact the regulation, structure or function of RNA. Recently, mutations in enzymes that modify RNA have been found in patients with intellectual disability. This project focuses on identifying and characterising specific RNA modification sites in brain that when disrupted cause mental retardation.
Causes And Consequences Of Mental Disorders, Cognitive Decline And Dementia Over The Adult Life Course And The Implications For Mental Health Services: PATH Through Life Wave 4
Funder
National Health and Medical Research Council
Funding Amount
$1,214,287.00
Summary
Our longitudinal study examines biological, social, genetic and psychological risk and protective factors for disorders of mind and brain including depression, anxiety, substance use, cognitive impairment and dementia. Three cohorts will be assessed providing 12 years of follow-up. The study is unique within Australia for spanning 6 decades of adulthood. We will also identify what health services people use; and why many people with mental health problems do not access services.
Interplay Of Genetic And Environmental Factors On Age-related Cataract Development
Funder
National Health and Medical Research Council
Funding Amount
$217,519.00
Summary
We aim to investigate factors influencing the development of age-related cataract, using data collected from two population-based studies of older persons: the Blue Mountains Eye Study and the Beaver Dam Eye Study (USA). We will assess genetic susceptibility to the two common forms of age-related cataract, replicated in two Asian samples, and determine how genetic and environmental factors jointly contribute to the development of cataract in some older persons.
Determining The Causes Of Congenital Vertebral Defects
Funder
National Health and Medical Research Council
Funding Amount
$956,136.00
Summary
Many birth defects cause vertebral malformations along the spinal column. These originate as the fetus forms, and we have previously shown that some of these are caused by gene mutation and/or environmental factors during gestation. However, the origins of many such defects remain unexplained. We will examine the DNA of a large number of patients to find more genes causing such defects. We will also test if these new genes predispose a fetus to being more susceptible to environmental influences.