Identifying components of a novel imprinting mechanism that regulates seed size in plants. Australia is a major exporter of agricultural food crops thus producers must maintain their competitive advantage in order to compete on the world stage. This project will study a fundamental biological process of seed development as seeds are a major food staple and an important export product for Australian farmers.
Understanding Mitochondrial DNA Segregation And Transmission.
Funder
National Health and Medical Research Council
Funding Amount
$512,449.00
Summary
We inherit our mitochondrial DNA from our mothers. Mutations to mitochondrial DNA can give rise to severely debilitating diseases that can be passed from one generation to the next. The aims of this application are to understand how mutant mitochondrial DNA is selected for; when it affects energy production during development; and to ensure that certain reproductive strategies do not result in the adverse transmission of mitochondrial DNA that will affect subsequent generations.
Pathways Of Neurosteroid-mediated Protection Following Compromised Pregnancy And Preterm Birth
Funder
National Health and Medical Research Council
Funding Amount
$565,785.00
Summary
The hormonal environment of pregnancy is essential for normal development of the fetal brain. Levels of key hormones fall following premature birth and are further suppressed if the fetus is small or subjected to stress. This leads developmental problems in infants from the pregnancies. This project will examine effectiveness of replacement and supplementation treatments with critical neurosteroid hormones in reversing the adverse neurological effects of these complications of pregnancy.
Contribution Of Disturbed Blood Flow And Cerebral Metabolism To White Matter Damage In The Perinatal Brain
Funder
National Health and Medical Research Council
Funding Amount
$369,375.00
Summary
It has been known for some time that the white matter regions of the developing brain are particularly vulnerable to damage. These regions are deep in the brain near the ventricles, and are rich in myelin sheaths wrapped around the nerve fibres running from cell-rich areas in the outer layers of the brain to other regions, and down into the spinal cord. Damage to white matter usually leads to behavioural, learning and motor problems in the newborn infant - in its severest form, seen as cerebral ....It has been known for some time that the white matter regions of the developing brain are particularly vulnerable to damage. These regions are deep in the brain near the ventricles, and are rich in myelin sheaths wrapped around the nerve fibres running from cell-rich areas in the outer layers of the brain to other regions, and down into the spinal cord. Damage to white matter usually leads to behavioural, learning and motor problems in the newborn infant - in its severest form, seen as cerebral palsy. Such outcomes are often associated with the presence of asphyxia and infection during pregnancy, leading to the belief that the damage first arises while the baby is still in utero. In this application we suggest that asphyxia and-or infection during pregnancy cause prolonged disturbances in the regulation of blood flow and integrity of the blood-brain barrier in the developing brain, together with changes in metabolism that result in accumulation of prostaglandins and the toxic hydroxyl radical, leading irreversibly to cell death. If this series of events proves to be true, we have suggested and will test several protocols for protecting the fetal brain, which should be readily translatable to clinical practice.Read moreRead less
Optimising Non-invasive Ventilation At Birth For Preterm Infants
Funder
National Health and Medical Research Council
Funding Amount
$735,912.00
Summary
Infants born very premature require respiratory support at birth to make the transition to newborn life. As these infants are very immature and prone to injury, modern respiratory care strategies utilise the least invasive approaches mainly applied using a facemask. However, we have discovered that the larynx is closed at birth and thereby prevents air from entering the lung. This application is focussed on optimising the efficiency of facemask ventilation at birth and stimulating breathing.
Cerebral Palsy (CP) is a devastating, common developmental brain disorder once assumed to be due to lack of oxygen at birth. Using our unique Biobank with DNA and clinical data from families with a CP child, we are examining the genetic origins of CP and how genes and risk factors in pregnancy contribute. We will use computer modelling and testing in animals and brain cells, to understand causes of CP and devise predictive, preventative and therapeutic strategies.
Building child health through maternal wellbeing. Chronic diseases partly originate in the health & social circumstances of previous generations, during pregnancy, and in conditions during infancy and childhood. This project will draw from three community studies the researcher established to investigate how aspects of women's health affect their children's health and identify new opportunities for disease prevention.
Development of a diagnostic microarray to detect aneuploidy in single cells. Chromosomal abnormalities account for about 10 per cent of all babies born with a defect. The risk of chromosomal abnormalities increases with maternal age and in patients with fertility problems. It has been estimated that 50 per cent of all embryos are aneuploid. Chromosomal aberrations also occur in the vast majority of tumours in humans. Accurate and rapid detection of chromosomal defects is an important health ser ....Development of a diagnostic microarray to detect aneuploidy in single cells. Chromosomal abnormalities account for about 10 per cent of all babies born with a defect. The risk of chromosomal abnormalities increases with maternal age and in patients with fertility problems. It has been estimated that 50 per cent of all embryos are aneuploid. Chromosomal aberrations also occur in the vast majority of tumours in humans. Accurate and rapid detection of chromosomal defects is an important health service delivered to the Australian public. This project aims to develop better tests for application in prenatal diagnostics including non-invasive testing of fetal cells from maternal circulation or cervical samples at 6-13 weeks gestation, IVF and cancer diagnostics.Read moreRead less
Defining the pathways of developmental brain injury, for a healthy start to life. Injury to the developing brain, whether sustained during pregnancy or at birth, is the underlying cause of many cognitive and motor disabilities, including cerebral palsy. This project will identify the cellular pathways that cause developmental brain injury, arising from the three principal complications of pregnancy or birth; intrauterine growth restriction (IUGR), preterm birth with/without intrauterine infectio ....Defining the pathways of developmental brain injury, for a healthy start to life. Injury to the developing brain, whether sustained during pregnancy or at birth, is the underlying cause of many cognitive and motor disabilities, including cerebral palsy. This project will identify the cellular pathways that cause developmental brain injury, arising from the three principal complications of pregnancy or birth; intrauterine growth restriction (IUGR), preterm birth with/without intrauterine infection and birth asphyxia. This project will utilise this knowledge of the causal pathways leading to brain injury to implement targeted therapies to reduce injury or repair the brain. It will progress fundamental biomedical discoveries into clinical practice to decrease the incidence and severity of newborn brain injury and cerebral palsy.Read moreRead less
Wiring the gut's nervous system: formation and maturation of synapses. This project aims to determine how nerve circuits controlling intestinal functions develop; specifically how communication between specific nerve cells is established once they appear in the embryonic gut. It will fill a major hole in existing knowledge of mechanisms regulating the development of normal digestive behaviours.