The Function Of Gametogenenin In Male Fertility And Embryogenesis
Funder
National Health and Medical Research Council
Funding Amount
$537,579.00
Summary
We have identified gametogenetin as novel protein involved in sperm production and in the very earliest stages of embryo survival. It is found within the sperm tail where it binds to cysteine-rich secretory protein 2. The aim of this project is to further refine the biochemistry of GGN using a combination of binding studies, expression analyses and the characterization of two unique mouse models. This project has direct relevance to the causes of human infertility and contraceptive development.
Kisspeptin And Its Receptor Mastermind Reproduction
Funder
National Health and Medical Research Council
Funding Amount
$601,979.00
Summary
Reproduction is controlled by the brain and gonadotropin releasing hormone (GnRH) is the primary stimulatory factor. Finding critical regulators of GnRH has remained the most important goal for reproductive endocrinologists for over 30 years. The brain peptide hormone called kisspeptin and its receptor Kiss1R appear vital in the control of reproduction. This project will detail the role kisspeptin and Kiss1R play in controlling hormones from the brain that govern puberty and reproduction.
The Identification Of Male Meiosis Genes Using A New Mouse Line And Human Genome Scans For Gene Copy Number Variations
Funder
National Health and Medical Research Council
Funding Amount
$604,793.00
Summary
Infertility affects 1 in 25 Australian men and meiosis is a key process in male fertility, yet we know very little about the mechanisms that control it. We will use a new point mutant mouse model of meisois failure to identify a novel regulator of male fertility. Further, we hypothesize that changes in gene copy number will lead to meiosis arrest and infertility in some men. Such variations will be assessed through a whole genome scan of a unique set of infertile men.
Approximately 1 in 25 men in the western world are infertile, and while environmental and genetic factors are recognized to contribute to disease, there is currently a poor understanding of the basic mechanisms regulating male fertility. Our long term goal is to identify and study key molecules involved in sperm production. Understanding the role of these molecules will provide insight into the causes of male infertility. Ultimately, these studies will assist to develop new treatments for male r ....Approximately 1 in 25 men in the western world are infertile, and while environmental and genetic factors are recognized to contribute to disease, there is currently a poor understanding of the basic mechanisms regulating male fertility. Our long term goal is to identify and study key molecules involved in sperm production. Understanding the role of these molecules will provide insight into the causes of male infertility. Ultimately, these studies will assist to develop new treatments for male reproductive disorders. Conversely, there is a huge need for additional male based contraceptives. Increased understanding of male fertility and identification of proteins exclusively involved in sperm production provides the opportunity to develop new contraceptive treatments.Read moreRead less
Gonadotropin Inhibitory Hormone As A Major Regulator Of Reproduction In Mammals
Funder
National Health and Medical Research Council
Funding Amount
$623,378.00
Summary
Reproduction is controlled by the brain and it has been well established that gonadotropin releasing hormone (GnRH) is the primary stimulatory factor. GnRH stimulates the pituitary gland to produce and secrete hormones that, in turn, stimulate the ovaries and testes. It is becoming clear that the brain also produces an inhibitory factor and this project aims to establish that it (gonadotropin inhibitory hormone; GnIH) is functional in mammals.
I am a reproductive biologist working to define key mechanisms for sperm development and function; and by extension the causes of human male infertility.
Facilitating Endometrial Receptivity To Improve Pregnancy Outcomes
Funder
National Health and Medical Research Council
Funding Amount
$734,252.00
Summary
The womb prepares itself in each menstrual cycle for pregnancy and the implantation of an embryo. In some women, the endometrium may not prepare itself adequately and this can lead to infertility. We have identified small RNA that may be useful in predicting which women are not adequately prepared for implantation and may be used to develop treatments for infertile women, for which there are currently no treatments.
Mechanisms And Utilisation Of IFN-epsilon-mediated Protection Against Chlamydia Reproductive Tract Infection
Funder
National Health and Medical Research Council
Funding Amount
$750,486.00
Summary
Chlamydia is a common cause of sexually transmitted diseases resulting in pelvic inflammatory disease, infertility and ectopic pregnancy. There are no vaccines that prevent infection or disease. We have discovered a new factor in the immune system (interferon-epsilon) that only occurs in the reproductive tract. If this factor is absent then Chlamydia infections are more severe. We will investigate how this factor protects against infection and if we can use it as a new agent against Chlamydia ST ....Chlamydia is a common cause of sexually transmitted diseases resulting in pelvic inflammatory disease, infertility and ectopic pregnancy. There are no vaccines that prevent infection or disease. We have discovered a new factor in the immune system (interferon-epsilon) that only occurs in the reproductive tract. If this factor is absent then Chlamydia infections are more severe. We will investigate how this factor protects against infection and if we can use it as a new agent against Chlamydia STDs.Read moreRead less
A Novel Reproductive Tract Factor That Protects Against Chlamydia
Funder
National Health and Medical Research Council
Funding Amount
$541,133.00
Summary
Chlamydia is a common cause of sexually transmitted diseases resulting in pelvic inflammatory disease, infertility and ectopic pregnancy. There are no vaccines that prevent infection or disease. We have discovered a new factor in the immune system (interferon-epsilon) that only occurs in the reproductive tract. If this factor is absent then Chlamydia infections are more severe. We will investigate how this factor protects against infection and if we can use it as a new agent against Chlamydia ST ....Chlamydia is a common cause of sexually transmitted diseases resulting in pelvic inflammatory disease, infertility and ectopic pregnancy. There are no vaccines that prevent infection or disease. We have discovered a new factor in the immune system (interferon-epsilon) that only occurs in the reproductive tract. If this factor is absent then Chlamydia infections are more severe. We will investigate how this factor protects against infection and if we can use it as a new agent against Chlamydia STDs.Read moreRead less
Implantation of an embryo into the uterus & development of a functional placenta are critical to initiate & continue a pregnancy. Implantation failure causes infertility and is a major bottle-neck in IVF. Placental insufficiency leads to pregnancy loss, under-developed fetuses & a life-threatening pregnancy-specific disease preeclampsia. This application will investigate how a woman’s uterus works for implantation and placental development, how to increase IVF success and diagnose & potentially ....Implantation of an embryo into the uterus & development of a functional placenta are critical to initiate & continue a pregnancy. Implantation failure causes infertility and is a major bottle-neck in IVF. Placental insufficiency leads to pregnancy loss, under-developed fetuses & a life-threatening pregnancy-specific disease preeclampsia. This application will investigate how a woman’s uterus works for implantation and placental development, how to increase IVF success and diagnose & potentially treat preeclampsia.Read moreRead less