Improving The Prediction And Detection Of Contributors To Term Stillbirth
Funder
National Health and Medical Research Council
Funding Amount
$570,358.00
Summary
Stillbirths are a global human tragedy, with 1 in 130 of all pregnancies in Australia ending in stillbirth. We propose to use ultrasound and blood markers to improve the detection of babies who are not growing well, a leading risk factor for stillbirth. Sleep position has also been associated with stillbirth, so we will study fetal heart rate responses during an overnight sleep study to see if breathing events overnight may be an important contributor to stillbirth in growth restricted fetuses.
A small number of babies die unexpectedly while still in the womb: the numbers are much higher than those dying from Sudden Infant Death Syndrome (SIDS). Some of these babies slow their movements down in the days before death. It would be very helpful to be able to accurately monitor babies' movements in the womb so that we could help the few babies who need it, and so prevent poor outcomes. Mothers feel their babies moving, but it's often hard for them to pick up all the movements that do occur ....A small number of babies die unexpectedly while still in the womb: the numbers are much higher than those dying from Sudden Infant Death Syndrome (SIDS). Some of these babies slow their movements down in the days before death. It would be very helpful to be able to accurately monitor babies' movements in the womb so that we could help the few babies who need it, and so prevent poor outcomes. Mothers feel their babies moving, but it's often hard for them to pick up all the movements that do occur. The best way of measuring babies' movements is during an ultrasound. However, that's expensive and means that the pregnant mother needs to lie still for about half an hour to have this testing done. We are developing a way of recording babies' movements, which still lets the pregnant woman continue with her normal activities. We will do this using an AMBULATORY FETAL ACTIVITY MONITOR, which is an accelerometer, like an advanced pedometer. The ambulatory fetal activity monitor will measure the activity of the unborn baby during pregnancy, looking at the number of times s-he moves and how simple or complex the movements are. We expect that the unborn baby who is not getting enough nutrition during the pregnancy will have fewer movements than other unborn babies. This project involves checking that movements picked up by the ambulatory fetal activity monitor are the same as movements seen on an ultrasound. We will then monitor a large number of pregnant women with healthy and possibly unhealthy babies, to help identify the babies who need help. Once we have this information, we will be able to use it in the future to possibly prevent poor outcomes in those babies who do need help.Read moreRead less
Measuring Hypoxia Induced MRNA In Maternal Blood To Monitor Wellbeing Of Growth-restricted Fetuses
Funder
National Health and Medical Research Council
Funding Amount
$421,358.00
Summary
Severely growth restricted fetuses are at peril of stillbirth from low oxygenation. While ultrasound monitoring improves outcomes, babies are still lost. Better ways to monitor the health the unborn baby are needed. We have recently discovered fetuses’ starved of oxygen leak RNA into mother's blood. Thus, measuring RNA molecules in blood could be used to assess fetal health. We will examine whether measuring mRNA in maternal blood could be used to monitor wellbeing of growth-restricted fetuses.
The Role Of Vitamin D In Placental Development And Pregnancy Success
Funder
National Health and Medical Research Council
Funding Amount
$723,235.00
Summary
Vitamin D deficiency affects about 1 billion people worldwide, including up to 80% of Australians depending on age, skin colour and sun exposure. Vitamin D deficiency has now been associated with a large number of common diseases of aging and with pregnancy complications. This proposal will use human pregnancy serum and placenta, as well as mouse gene knockout models, to determine the hitherto unknown roles of vitamin D in development of the placenta and health of mother and baby.
Priming The Maternal Immune Response To Resist Inflammatory Disorders Of Pregnancy
Funder
National Health and Medical Research Council
Funding Amount
$920,972.00
Summary
Preeclampsia and preterm birth are common conditions affecting >15 million pregnancies annually. An underlying cause is the mother’s immune response, which can react adversely to the fetus causing an inflammatory reaction. This project seeks to find ways to strengthen the maternal immune system beginning before conception. The work will provide insights upon which to advise intending parents and will inform development of new treatments options to protect susceptible women.
Stillbirth is a global public health problem affecting 3 million babies annually. In Australia, almost 3,000 stillbirths occur each year, many of which are preventable if the pregnancy is recognised as being at risk. This fellowship will develop novel non-invasive techniques to identify these at risk pregnancies using biomarkers in the mother's blood and cutting edge imaging. The efficacy of these novel techniques to prevent stillbirths and improve pregnancy outcomes will then be assessed.
Measuring Hypoxia Induced MRNA In Maternal Blood To Determine Acidaemic Status Of Growth Restricted Fetuses In Utero
Funder
National Health and Medical Research Council
Funding Amount
$120,253.00
Summary
Small babies are at greater risk of dying while inside their mothers and the right time to deliver them is an obstetric conundrum. Currently obstetricians rely on ultrasound measures of the baby's wellbeing which do not always correspond with how sick the baby truly is. There is a great need for a more accurate test. This research intends to show that a blood test from the mother can more accurately tell how sick the baby is and provide an answer to when is the best time to deliver the baby.
Implementing Neuroprotective Strategies For Fetal Growth Restriction
Funder
National Health and Medical Research Council
Funding Amount
$782,370.00
Summary
Fetal growth restriction (FGR) is a serious and common complication of pregnancy that is a principal cause of injury to the developing fetal brain. In turn, damage to the developing brain during pregnancy may cause cerebral palsy and other cognitive and behavioural deficits. This proposal builds on my work to date characterising the mechanisms that contribute to neuropathology in FGR infants, by implementing targeted strategies to protect or repair the FGR brain.
The Cardiovascular Toll Of Pre-eclampsia: Determining Impacts On The Maternal, Fetal And Placental Vasculature.
Funder
National Health and Medical Research Council
Funding Amount
$128,224.00
Summary
Pre-eclampsia is a common condition of pregnancy that causes a rise in blood pressure, protein in the urine and damage to other organs. It can cause significant harm to the mother and baby. In the long term, mums who have had pre-eclampsia are at a higher risk of developing heart problems. We want to explore how the heart changes in a pregnancy complicated by pre-eclampsia, and see if these changes can help us predict pregnancy risk and long term outcomes.
Sleep-disordered Breathing In Pregnancy-induced Hypertension And Preeclampsia: Maternal And Fetal Outcomes
Funder
National Health and Medical Research Council
Funding Amount
$129,559.00
Summary
Our study aims to compare signs of sleep-disordered breathing (such as snoring and breathing pauses) in pregnant women affected by hypertension or preeclampsia to those with a healthy pregnancy, and to see if they respond differently to the breathing problems. To do this we will examine whether snoring and breathing pauses during sleep have an impact on the pregnant woman’s blood pressure and the unborn baby’s heart rate overnight, and scans will monitor whether the baby’s growth is affected.