Long Term Consequences Of Perturbing Early Embryo Development
Funder
National Health and Medical Research Council
Funding Amount
$549,515.00
Summary
Assisted reproductive techniques are normally considered safe, but there are increased risks for these newborns which may be caused by these procedures. We have developed mouse models that are sensitive to these effects and have used them to show that gene expression is altered in mice that develop from cultured embryos. Now we will use these models to work out how to reduce these effects and ensure the ongoing health of babies born with assisted reproduction.
Metabolic And Molecular Basis Of Embryo Signalling
Funder
National Health and Medical Research Council
Funding Amount
$409,836.00
Summary
Cells in the body are powered by mitochondria that essentially generate the energy required for development. This grant will determine how the environment affects the mitochondria in the developing embryo and determine the impacts to the embryo and pregnancy if a mitochondria is partially shut down.
It is clear that the health and disease burden of offspring can be programmed by events before birth. This project will answer questions as to how this programming occurs. My focus is to understand how the environment affects the oocyte, sperm and embryo and how this impacts on the offspring. We will specifically study the effects of obesity and nutritional status of the parents but also the in vitro environment with a view to improving IVF outcomes.
Molecular Basis For Female Age-associated Decline In Oocyte Quality And Fertility
Funder
National Health and Medical Research Council
Funding Amount
$71,792.00
Summary
Many women cannot have children because of suboptimal egg quality, often due to ageing. In order for novel strategies to be developed for improving egg quality, it will first be important to understand how key factors in eggs are regulated. This project will use state-of-the-art techniques to interrogate a pivotal pathway we have discovered in eggs that could be responsible for age-related decline and could hold the key to new approaches for rejuvenating eggs.
Three percent of children born in Australia are from IVF. It is typical in IVF to replace 2 or more embryos in order to attain an acceptable pregnancy rate. However, twin pregnancies are common as a result, with 25% of all twins coming from IVF. Twins represent a real medical issue for mother and infants. Therefore, this research will use new highly innovative technologies to determine the health of an individual embryo in the culture dish prior to transfer, making the selection and transfer of ....Three percent of children born in Australia are from IVF. It is typical in IVF to replace 2 or more embryos in order to attain an acceptable pregnancy rate. However, twin pregnancies are common as a result, with 25% of all twins coming from IVF. Twins represent a real medical issue for mother and infants. Therefore, this research will use new highly innovative technologies to determine the health of an individual embryo in the culture dish prior to transfer, making the selection and transfer of an individual embryo a reality.Read moreRead less
Improving Oocyte Mitochondrial DNA Copy Number To Enhance Female Reproductive Capacity.
Funder
National Health and Medical Research Council
Funding Amount
$670,867.00
Summary
Eggs with too few copies of mitochondrial DNA either fail to fertilise or arrest during early development. By supplementing eggs with mitochondrial DNA, we have been able to enhance embryo quality and gene expression profiles. By breeding the offspring derived from eggs given mitochondrial supplementation, we will determine if they and their progeny meet normal developmental milestones, regulate the transmission of mitochondrial DNA appropriately, and are healthy and fertile.
The normal processes of development of the embryo require that the information encoded in chromosomes be reprogrammed soon after fertilization. This process is rather fragile and disturbance of the early embryo can upset it. Recent studies for the chief investigator's provide new understanding of the normal processes of reprogramming. The project will explore and validate the implications of these new discoveries and provide a basis for future alleviation of abnormalities to development.
Development Of A Novel Microfluidic Device To Treat Male Infertility
Funder
National Health and Medical Research Council
Funding Amount
$508,397.00
Summary
This research aims to develop a novel technology for the separation of high quality sperm. It is envisaged this will replace existing technology to improve the reproductive outcomes of both humans, as well as animals.
Nicotinamide Adenine Dinucleotide (NAD+)-raising Agents For Improving Oocyte Quality
Funder
National Health and Medical Research Council
Funding Amount
$445,827.00
Summary
Many women cannot have children because of suboptimal egg quality, often due to aging. Currently, the only option is to use better quality eggs donated from another woman. This project will use pharmacological agents to promote recently discovered pathways in eggs central to determining quality. Importantly, we will investigate a simple and practical approach that can be used in clinics for augmenting these pathways to improve oocyte quality for the first time.