Role Of The Anaphase-Promoting Complex Activator Cdh1 In Oocyte Maturation And Meiotic Aneuploidy
Funder
National Health and Medical Research Council
Funding Amount
$526,878.00
Summary
Eggs containing an incorrect number of chromosomes are described as aneuploid. This project sets out to examine the molecular causes of aneuploidy and why it increases with female age. We focus on the protective role of the protein Cdh1 in this process. The outcome would be to better understand the origins of aneuploidy so as to find methods of decreasing it as women age. This is highly significant given aneuploidy is the leading cause of early embryo loss and produces Down Syndrome babies.
Targeted Disruption Of Lipoxygenase Enzymes To Prevent Oxidative Stress-mediated Pathologies In The Male Germline
Funder
National Health and Medical Research Council
Funding Amount
$408,768.00
Summary
An estimated 80 million individuals suffer from infertility globally with at least 50% of these cases due to defects in sperm function. Unfortunately, due to a severe lack of knowledge surrounding sperm biology and dysfunction, no successful curative or preventative measures have been established. My project will study why sperm cells die and investigate new ways to limit cellular stress so we can develop new therapeutic strategies to mitigate the growing problems in male reproductive health.
Life-saving chemo/radio-therapy commonly renders women and girls who survivor cancer infertile or sterile. We have discovered a new means of preserving the fertility of female mice exposed to chemo/radio therapy. In this project we will apply these advances to human ovarian tissue/eggs for the first time. We have access to these rare tissues for research purposes. This project will develop new approaches to fertility preservation for cancer survivors.
Male Chlamydia Infections: The Key Role Of Macrophages In Testicular Dissemination And Disrupted Spermatogenesis
Funder
National Health and Medical Research Council
Funding Amount
$868,464.00
Summary
Male partners of couples seeking IVF, who are seropositive for Chlamydia, indicating a prior infection, often have significantly impaired sperm quality (reduced motility, increased DNA damage and abnormal sperm morphology). Our studies will define how Chlamydia are transported to the testis from the penis and how chronic chlamydial infection in the testis disrupts sperm development. We will also develop new antibiotic delivery systems to improve treatment of male chlamydial infections.
Preserving Ovarian Function During Chemotherapy And Old Age
Funder
National Health and Medical Research Council
Funding Amount
$425,048.00
Summary
Chemotherapy treatment and the natural ageing process leads to ovarian failure and infertility. For young cancer survivors, chemotherapy induced infertility is devastating, and like aged women, leads to hormonal changes that lead to osteoporosis, diabetes, obesity, and neurodegeneration. Here, a new class of molecules will be tested for their ability to prevent and reverse infertility folllowing chemotherapy treatment, and in old age. These findings will improve the healthy lifespan of women.
Female Reproductive Health Preservation By Nicotinamide Adenine Dinucleotide (NAD+) And Sirtuin2 (SIRT2)
Funder
National Health and Medical Research Council
Funding Amount
$410,983.00
Summary
Cancer treatment can be severely toxic to women’s eggs. Increasing numbers of women who survive cancer therefore become infertile and prematurely deprived of hormonal support whilst still in their reproductive years. This project will use state-of-the-art techniques to interrogate newly uncovered pathways that can protect eggs from treatment-induced injury thereby greatly improving the quality of life for female cancer survivors.
An econometric analysis of the effects of family benefit policies on fertility, saving and labour force participation in Australia. This project will help to 'strengthen Australia's economic fabric' by improving our understanding of the effect of family benefit policies on fertility, saving and labour force participation. This is important because boosting fertility and labour force participation are both seen as ways of mitigating the economic burden of population ageing, thereby helping Austra ....An econometric analysis of the effects of family benefit policies on fertility, saving and labour force participation in Australia. This project will help to 'strengthen Australia's economic fabric' by improving our understanding of the effect of family benefit policies on fertility, saving and labour force participation. This is important because boosting fertility and labour force participation are both seen as ways of mitigating the economic burden of population ageing, thereby helping Australia to 'age well, age productively' in a national sense. Also, achieving a desired level of national saving is a medium term goal of government economic policy. Hence it is important to understand the interaction of saving, fertility and labour force participation in order to develop compatible and effective economic policies.Read moreRead less
The Functional Roles Of ADAMs In The Regulation Of Embryo Implantation.
Funder
National Health and Medical Research Council
Funding Amount
$211,527.00
Summary
The initiation of pregnancy in humans and rodents hinges upon the ability of the embryo to attach to the wall of the uterus and invade into the uterine tissue. This process of embryo implantation is tightly regulated and depends on the secretion of enzymes and regulators of these enzymes. A newly identified family of enzymes which might be important in this process is the ADAMs family. These enzymes have the potential to facilitate both cell attachment and cell invasion and also to activate othe ....The initiation of pregnancy in humans and rodents hinges upon the ability of the embryo to attach to the wall of the uterus and invade into the uterine tissue. This process of embryo implantation is tightly regulated and depends on the secretion of enzymes and regulators of these enzymes. A newly identified family of enzymes which might be important in this process is the ADAMs family. These enzymes have the potential to facilitate both cell attachment and cell invasion and also to activate other enzymes and growth factors. Recent studies in our laboratory have shown the ADAMs to be expressed both at the most invasive time of implantation and when invasion is being down-regulated. This project will examine the role of the ADAMs in embryo implantation facilitating attachment and invasion into the uterus by acting enzymatically on the uterine tissue and by activating other enzymes. It will also determine the role of ADAMs in down-regulating invasion potentially by activating a growth factor, TNF-alpha. Knowledge of this process and particularly its regulation is important for the treatment of pregnancy associated diseases that arise from improper implantation. These include infertility, placenta accreta, choriocarcinoma, miscarriage and pre-eclampsia. Furthermore, an understanding of the regulation of implantation will contribute to the treatment of other conditions associated with cell invasion such as cancer metastasis.Read moreRead less
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.
Age at first birth, mode of conception and adjustment to parenthood. The trend to delayed childbearing is well-established, multiply determined and unlikely to change in the short term. This study will provide contemporary Australian evidence on the experience of becoming a parent at different ages, naturally and through assisted conception, for Australian men and women. Both risk and protective factors for older first-time parents will be identified, thus informing policy and services that can ....Age at first birth, mode of conception and adjustment to parenthood. The trend to delayed childbearing is well-established, multiply determined and unlikely to change in the short term. This study will provide contemporary Australian evidence on the experience of becoming a parent at different ages, naturally and through assisted conception, for Australian men and women. Both risk and protective factors for older first-time parents will be identified, thus informing policy and services that can better support Australian families with planning and rearing children. A key outcome will be a Parenting Decision-Aid to provide evidence-based reader-friendly information about the positives and negatives of first-time parenthood at different ages.Read moreRead less