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An Integrated Approach To Inotropic Support In Preterm Neonates
Funder
National Health and Medical Research Council
Funding Amount
$694,449.00
Summary
Poor cardiovascular function in preterm babies can lead to inadequate blood flow to the brain and brain injury. Current treatments to improve heart function are often ineffective. This study will examine the effects of treatment on different parts of the cardiovascular system, and how these effects interact. It will identify reasons for the lack of effectiveness and provide insight which will help to design better treatments for preterm babies.
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
Intergenerational Transmission Of Gender-specific Metabolic Disease For Offspring Born Small: Maternal, Paternal And Embryonic Roles
Funder
National Health and Medical Research Council
Funding Amount
$689,050.00
Summary
This proposal addresses the underlying metabolic health consequences of poor embryo and growth of the baby across generations. We will define mechanisms by which a poor functioning placenta during a rat mother’s pregnancy programs her offspring born small to transmit gender-specific diseases to the next generation. We will identify mechanistic pathways involved, specifically the relative contributions of maternal and paternal germ lines and adverse maternal adaptations to pregnancy for females b ....This proposal addresses the underlying metabolic health consequences of poor embryo and growth of the baby across generations. We will define mechanisms by which a poor functioning placenta during a rat mother’s pregnancy programs her offspring born small to transmit gender-specific diseases to the next generation. We will identify mechanistic pathways involved, specifically the relative contributions of maternal and paternal germ lines and adverse maternal adaptations to pregnancy for females born small.Read moreRead less
Creatine Supplementation In Pregnancy: Utilising Cells’ “Built-In” Energy Buffering System
Funder
National Health and Medical Research Council
Funding Amount
$318,768.00
Summary
Through pregnancy, the placenta transfers oxygen and nutrients from the mother to the baby. When a placenta doesn’t function properly a baby’s health is compromised. This can lead to morbidity or death. Creatine is the “back-up generator” of all cells and could help the failing placenta increase nutrient and oxygen delivery to the baby. This study will develop creatine as a potential new therapeutic, to improve the survival of babies of complicated pregnancies.
The Role Of Proteoglycans In Contributing To Placental Thrombosis And Fetal Growth Restriction
Funder
National Health and Medical Research Council
Funding Amount
$368,269.00
Summary
Fetal growth restriction (FGR) is a pregnancy complication in which the baby doesn�t grow properly in the womb. Growth restricted babies are much more likely to be stillborn. These babies are also at risk of problems later in life such as obesity, diabetes and heart disease. This study investigates molecules in the placenta that may be responsible for causing FGR. If we can understand how these molecules cause the problem of FGR, we may be able to find better ways of treating or preventing it.
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.
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 in preterm and term infants, and then administer umbilical cord blood stem cells at different timepoints to assess their efficacy at reducing brain injury. This project will inform treatment with cord blood stem cells in high risk infants.
The Potential Of Cord Blood Stem Cells To Reduce Neuroinflammation
Funder
National Health and Medical Research Council
Funding Amount
$314,644.00
Summary
Cerebral palsy (CP) is the most common cause of physical disability in children and it is well recognised that the brain injury that underlies CP occurs during pregnancy or around the time of birth. Stem cells isolated from umbilical cord blood offer a promising new therapy for children with CP. This proposal will explore the mechanism of how cord blood stem cells can reduce brain inflammation and damage caused by hypoxia-ischemia, an event known to lead to cerebral palsy.