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Treatment Of Cerebral Palsy - An Experimental Approach
Funder
National Health and Medical Research Council
Funding Amount
$589,544.00
Summary
Cerebral palsy is characterised by disordered movement evident early in life leading to lifelong disability. The motor disorder arises from an abnormality within the white-matter of the brain that is non-progressive and is identifiable soon after birth. In humans and experimental models of fetal infection there is an increase in markers of inflammation. We will use induce ovine fetal infection and white matter injury to examine if anti-inflammatory treatments can prevent fetal brain damage.
Intrauterine Ureaplasma Infection During Pregnancy: Fetal Effects And Characteristics Of Ureaplasma Pathogenicity.
Funder
National Health and Medical Research Council
Funding Amount
$527,097.00
Summary
Ureaplasmas are microorganisms that are commonly found in the urinary tracts of men and women, without any apparent adverse effects; but their presence in amniotic fluid during pregnancy is associated with preterm birth and other adverse pregnancy outcomes. The effects that ureaplasmas in the amniotic fluid have on the developing baby before birth are likely to result in illness after birth, but the range of potential effects is unknown. We also know very little about how ureaplasmas themselves ....Ureaplasmas are microorganisms that are commonly found in the urinary tracts of men and women, without any apparent adverse effects; but their presence in amniotic fluid during pregnancy is associated with preterm birth and other adverse pregnancy outcomes. The effects that ureaplasmas in the amniotic fluid have on the developing baby before birth are likely to result in illness after birth, but the range of potential effects is unknown. We also know very little about how ureaplasmas themselves manage to infect the fetus and other tissues within the pregnant uterus. Our studies are designed to identify the effects that ureaplasmas in amniotic fluid have on the developing fetus and how common treatments during pregnancy impact on those effects. We will also study ureaplasmas to see what it is about them that allows them to affect the fetus and other uterine tissues. We expect that our studies will lead to better diagnosis and treatment of amniotic ureaplasma infection during pregnancy, and will allow us to better care for babies born after exposure to ureaplasmas before birth.Read moreRead less
Innate Immunity And Neonatal Infections In Preterm Infants
Funder
National Health and Medical Research Council
Funding Amount
$302,123.00
Summary
In Australia, over 20,000 babies are born prematurely every year. Over 430 of these babies will die in the neonatal period, while another 15,000 will suffer neonatal and/or lifelong morbidity. Forty seven percent of these neonatal deaths will be due to neonatal infections. This research aims to prevent such devastating loss through characterising aberrant innate immune responses associated with the development of neonatal infection and identifying factors that lead to this outcome.
PROTECTING THE PRETERM FETAL BRAIN FROM HYPOXIA AND INFECTION: A HEALTHY START TO LIFE.
Funder
National Health and Medical Research Council
Funding Amount
$495,750.00
Summary
Brain damage during fetal life is a significant cause of later neurological problems such as cerebral palsy. Recent studies have shown that brain injury detected in infants is usually caused by adverse conditions within the uterus prior to labour, but the exact causes are poorly understood. It is also apparent that babies born prematurely are at increased risk of suffering serious brain damage. In recent years it has become evident that infections in the mother may be linked to both premature bi ....Brain damage during fetal life is a significant cause of later neurological problems such as cerebral palsy. Recent studies have shown that brain injury detected in infants is usually caused by adverse conditions within the uterus prior to labour, but the exact causes are poorly understood. It is also apparent that babies born prematurely are at increased risk of suffering serious brain damage. In recent years it has become evident that infections in the mother may be linked to both premature birth and brain damage. It has been proposed that certain chemicals (cytokines), which are released during an infection, can cross the placenta to the fetus causing inflammatory changes that lead to brain damage. We have shown that an inflammatory inducing chemical (bacterial endotoxin) administered to immature fetal sheep induces brain damage similar to that seen in cerebral palsy. This provides an excellent model for testing agents that are known to block the action of cytokines and other markers of inflammation; currently there is no effective strategy for the treatment or prevention of hypoxia and inflammatory induced injury of the brain partly due to our ignorance about how and when the damage is occurring. We will test the effects of two chemicals; N-acetyl cysteine, which is known to block the generation of inflammatory cytokines, and the naturally occurring glycoprotein erythropoietin, which prevents death of neurons (apoptosis). We hope that by blocking these pathways we may be able to prevent brain injury from occurring when the immature fetus is exposed to an infection during gestation. We expect that this project will provide important novel information that helps us to understand how infection in the mother can cause brain injury in the fetus and provide a new approach for strategies to prevent or treat brain injury.Read moreRead less
Improving The Neonatal Transition In Infants With A Congenital Diaphragmatic Hernia
Funder
National Health and Medical Research Council
Funding Amount
$551,644.00
Summary
Congenital diaphragmatic hernia is a common congenital abnormality and occurs when the diaphragm fails to separate the abdominal and thoracic compartments before birth. This prevents the lung from growing properly and so at birth, the lung is unable to take over the role of gas exchange without considerable assistance. As a result, these infants are at high risk of death or significant disability and this application is focused on improving care and reducing morbidity in these infants.
Creatine Synthesis And Transport In The Fetus - Critical Regulation Of Energy Supply For Fetal Growth & Survival?
Funder
National Health and Medical Research Council
Funding Amount
$288,210.00
Summary
Survival at birth depends on the baby being able to breathe effectively, to maintain adequate blood flow to every organ, and for the brain to coordinate these activities. Failure of any one of these will result in death. In this application we propose that the ability of the fetus and newborn baby to obtain adequate supplies of CREATINE is essential for survival, because this substance is essential for maintaining energy turnover in all cells in the body. In the adult, CREATINE is obtained eithe ....Survival at birth depends on the baby being able to breathe effectively, to maintain adequate blood flow to every organ, and for the brain to coordinate these activities. Failure of any one of these will result in death. In this application we propose that the ability of the fetus and newborn baby to obtain adequate supplies of CREATINE is essential for survival, because this substance is essential for maintaining energy turnover in all cells in the body. In the adult, CREATINE is obtained either from the diet (after absorption from the gut), or after synthesis in, and release from the liver. We do not know how fetal tissues obtain CREATINE, but we do know that when CREATINE is too low the fetus is likely to die, and that if extra CREATINE is supplied in the mother's diet the fetus is more likely to survive profound asphyxia at birth. In this project, in pregnant animals we will determine if fetal tissues can synthesize and take up CREATINE, and if providing extra CREATINE in the maternal diet throughout pregnancy can protect the heart, brain and breathing apparatus from the damaging effects of asphyxia or low oxygen (hypoxia). If successful, we will have developed a new treatment for pregnant women that protects their unborn baby from the dangers of birth asphyxia.Read moreRead less
Asking QUestions About Alcohol In Pregnancy (AQUA): Longitudinal Cohort Study Of The Effects Of Low And Moderate Doses Of Alcohol Exposure On The Fetus
Funder
National Health and Medical Research Council
Funding Amount
$1,368,294.00
Summary
National alcohol guidelines advise women to have no alcohol in pregnancy. However, many find they are unexpectedly pregnant and have been drinking, leading to considerable anxiety. While evidence is clear that heavy drinking is bad for the unborn baby, no-one knows for sure if low or even moderate levels of alcohol in pregnancy are harmful. We will study this important public health problem, following a group of pregnant women through their pregnancy and until their child is two years.
Developmental Programming: Mechanisms And Interventions
Funder
National Health and Medical Research Council
Funding Amount
$705,501.00
Summary
Disturbances during pregnancy can impact on developmental processes and result in increased risk of disease in later life. This project will examine the impact of perturbations such as maternal stress or alcohol consumption on the development of the placenta and fetal kidney. By gaining an understanding of how these organs are affected by prenatal insults, we are likely to be able to develop more effective intervention strategies to ensure all babies receive a healthy start to life.
The Consequences Of Innate Anti-viral Effector Responses On Reproductive Outcomes In Placental Mammals
Funder
National Health and Medical Research Council
Funding Amount
$328,060.00
Summary
The mother's immune system can tolerate the growth of an ostensibly foreign fetus during pregnancy. We will investigate whether exposure to viral infections either just before or during pregnancy can result in reduced fertility and whether it may affect fetal growth and development. These results will contribute in designing effective interventions to limit any potential detrimental outcomes.
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.