An Evaluation Of Inhibin And Activin As Early Markers Of Pre-eclampsia And Fetal Growth Restriction.
Funder
National Health and Medical Research Council
Funding Amount
$96,921.00
Summary
Pre-eclampsia and fetal growth problems are among the major causes of maternal and perinatal death in Australia. One of the most pressing difficulties in the management of these conditions is our present inability to accurately predict those women who are destined to have one or other of these serious complications. Unfortunately, this means that the conditions are often detected late with little or no time to offer effective treatments. This project builds on exciting preliminary evidence that ....Pre-eclampsia and fetal growth problems are among the major causes of maternal and perinatal death in Australia. One of the most pressing difficulties in the management of these conditions is our present inability to accurately predict those women who are destined to have one or other of these serious complications. Unfortunately, this means that the conditions are often detected late with little or no time to offer effective treatments. This project builds on exciting preliminary evidence that suggests that a simple blood test from the mother in early pregnancy may be able to identify the women who will subsequently develop high blood pressure in late pregnancy, or the babies that will suffer impaired growth before delivery. In the future, such knowledge might then allow these women to receive more effective care, thereby improving their chance of a successful pregnancy. The project will also define the best time in pregnancy to perform the blood test and, if successful, could alter the very way women are currently looked after during their pregnancy.Read moreRead less
The Role And Regulation Of Phospholipase Isozymes In The Initiation Of Human Labour
Funder
National Health and Medical Research Council
Funding Amount
$462,589.00
Summary
Being born too early is the most significant problem facing contemporary clinical obstetrics in the developed world. Preterm birth is the major cause of ill-health and death in newborns, accounting for 85% of all early infant deaths, not secondary to genetic abnormality. In Australia in 1998, more than 17,000 babies were born too early, of these over 10,000 suffered respiratory complications and 1300 died during the first 21 days of life. Even though the likelihood of a premature baby surviving ....Being born too early is the most significant problem facing contemporary clinical obstetrics in the developed world. Preterm birth is the major cause of ill-health and death in newborns, accounting for 85% of all early infant deaths, not secondary to genetic abnormality. In Australia in 1998, more than 17,000 babies were born too early, of these over 10,000 suffered respiratory complications and 1300 died during the first 21 days of life. Even though the likelihood of a premature baby surviving doubles for every two weeks that birth is delayed (between 23 and 28 weeks of gestation), currently there is no treatment available that reliably delays or prevents premature birth. In order to develop clinically useful treatments and improve pregnancy outcome and the well-being of our newborn, it is essential to understand the mechanisms that start the process of labour and delivery. Thus, the overall aim of this project is to increase our understanding of how human labour is initiated and to identify processes that may be manipulated to delay premature birth. In particular, this project focuses on the role and regulation, of what we believe is, a central and common pathway involved in triggering the birth process. This pathway is a known regulator of inflammatory process in the body. Intriguingly, the process of birth displays many of the hallmarks of an inflammatory reaction. Our pilot studies suggest that this pathway is involved in activation many of the events that occur at the time of birth and that further investigation of its role will provide valuable insights in to what triggers human birth. The specific aims of this project are (i) to develop a better understanding of the mechanisms that initiate human labour and (ii) to identify more effectively ways of prevent preterm birth.Read moreRead less
The Impact Of Severe Asthma During Pregnancy On Placental Function And Fetal Hypothalamic-pituitary-adrenal Function
Funder
National Health and Medical Research Council
Funding Amount
$209,242.00
Summary
This study will examine whether the glucocorticoids administered for the control of severe asthma during pregnancy affects placental and fetal function. It is known that severe asthma during pregnancy is associated with low birth weight babies but the events that cause reduced growth of the baby are unknown. However in both animal and human pregnancies, increased exposure of the baby to glucocorticoids from the mother causes growth restriction of the baby. Therefore we propose that the increased ....This study will examine whether the glucocorticoids administered for the control of severe asthma during pregnancy affects placental and fetal function. It is known that severe asthma during pregnancy is associated with low birth weight babies but the events that cause reduced growth of the baby are unknown. However in both animal and human pregnancies, increased exposure of the baby to glucocorticoids from the mother causes growth restriction of the baby. Therefore we propose that the increased intake of glucocorticoids for the treatment of asthma during pregnancy changes how the placenta functions and allows the fetus to be exposed to maternal glucocorticoids causing changes in fetal development. We will examine placental blood flow and measure some placental enzymes that may be involved in the control of blood flow in placentas collected from women with mild, moderate and severe asthma and compare them to non-asthmatic women. We will look at placental blood flow in utero using Doppler ultrasound and also in vitro after the placenta is delivered. We want to see if the fetus is affected by increased intake of glucocorticoids by the mother by measuring a hormone estriol, which originates from the fetus. We will measure estriol throughout pregnancy as it can easily be detected in the mothers' urine. These studies will tell us if glucocorticoid intake for the treatment of asthma can exert effects on the placenta and baby during pregnancy. These studies will make a significant contribution both scientifically and clinically. At a scientific level we will be able to examine how increased maternal glucocorticoid intake during pregnancy affects placental mechanisms and whether these changes affect the fetus and clinically the outcome of this study will allow us to optimize asthma therapy during pregnancy so that we can improve the outcome for the baby.Read moreRead less
The Effect Of Asthma During Pregnancy On Placental Function And Fetal Development
Funder
National Health and Medical Research Council
Funding Amount
$378,600.00
Summary
Asthma affects 12% of the Australian population and is expected to increase to 20% over the next 10 years. This rise will result in an increase in the number of women who suffer from asthma during pregnancy and could emerge as a major public health problem since asthma during pregnancy is associated with low birthweight babies. Lower birthweight itself is an increased risk factor for a number of adult diseases such as diabetes and coronary artery disease and thus the children of asthmatic women ....Asthma affects 12% of the Australian population and is expected to increase to 20% over the next 10 years. This rise will result in an increase in the number of women who suffer from asthma during pregnancy and could emerge as a major public health problem since asthma during pregnancy is associated with low birthweight babies. Lower birthweight itself is an increased risk factor for a number of adult diseases such as diabetes and coronary artery disease and thus the children of asthmatic women are at risk for numerous pathologies throughout life. Nevertheless, the specific mechanisms that cause low birthweight in asthmatic pregnancies are unknown. We currently have a lead in this important area. Our data so far indicates that asthma produces alterations in placental blood flow and glucocorticoid metabolism that are particularly pronounced when the fetus is female. Inhaled glucocorticoid therapy is protective of the effects of asthma on the fetus suggesting the involvement of inflammatory pathways. The long term objectives of our work are to elucidate the effects of asthma on fetal health and to design better ways to manage asthma during pregnancy to improve the outcome for the baby. The short term objective of this grant is to define whether inflammatory factors associated with asthma during pregnancy change placental function to adversely affect fetal development and whether these effects are related to the sex of the fetus. Completion of these studies will provide both scientific and clincial outcomes. Scientifically, a biological basis for understanding alterations in placental physiology observed in women with asthma will be produced. Clinically our work will open avenues to optimize therapy for this group of women to improve their pregnancy and the outcome for their babies.Read moreRead less
Seminal Fluid As A Determinant Of Reproductive Health In Women
Funder
National Health and Medical Research Council
Funding Amount
$511,294.00
Summary
Healthy reproductive function is essential for conception and pregnancy. We have discovered that male seminal fluid can influence the female reproductive system after coitus. This project will define the actions of seminal fluid in the cervix and uterus, and the impact on fertility and defence against sexually transmitted infection. The findings will provide new insight on how men contribute to reproductive health in women, and lead to improved treatments for infertility and miscarriage.
A Media Formulation To Improve Implantation Rates And Pregnancy Outcome Following ART
Funder
National Health and Medical Research Council
Funding Amount
$304,380.00
Summary
Since women are delaying childbearing, ART is increasingly required. 2-3% of births in Australia follow ART. Only 15-40% of embryo transfers in assisted reproduction (ART) result in ongoing pregnancies. The poor success rate is due to the fact that the embryo culture media bear no resemblance to the maternal environment in which they grow normally. The new culture media to be validated in this proposal includes factors that are critical for embryo implantation and will improve ART success.