Activation Of GDF9 Regulates Human Folliculogenesis
Funder
National Health and Medical Research Council
Funding Amount
$531,690.00
Summary
GDF9 is a key regulator of fertility in female mammals, as it controls the process of folliculogenesis. In this grant, we will demonstrate the importance of GDF9 in human folliculogenesis, determine the mechanisms that activate GDF9 and show why aberrant GDF9 activation leads to ovarian disorders. Collectively, the outcomes of this proposal will increase our understanding of the fundamental mechanisms that regulate ovarian folliculogenesis and provide new avenues to manipulate this process.
The Role Of Dynamin In Spermatogenesis, Sperm Maturation And Sperm-oocyte Interactions
Funder
National Health and Medical Research Council
Funding Amount
$551,950.00
Summary
Male infertility is an extremely common condition affecting 1 in 20 Australian men. One of the major reasons for this pathology is that the spermatozoa have lost their ability to interact with the egg and penetrate its outer vestments. In this project we shall investigate the role of dynamin in the regulation of these events. This research will provide new and powerful insights into the causes of male infertility, with practical implications for diagnosis and treatment of this condition.
Investigation Of The Mechanisms Underpinning HSPA2 Dysfunction In The Spermatozoa Of Infertile Patients
Funder
National Health and Medical Research Council
Funding Amount
$481,563.00
Summary
Male infertility is an extremely common condition, that is frequently associated with the production of sperm that have lost their ability to recognize the egg. We have shown that this defect is frequently associated with a deficiency in a specific protein (HSPA2). By determining the mechanisms underpinning the loss of HSPA2, this project will provide powerful insights into the causes of male infertility, with practical implications for prevention, diagnosis and treatment of this condition.
Leucine-rich Guanylate Kinase Is A Regulator Of Sperm Tail Development And Motile Cilia Function
Funder
National Health and Medical Research Council
Funding Amount
$540,191.00
Summary
In this grant we will define the function of an uncharacterized protein, LRGUK, in fertility and hydrocephalus (water on the brain). LRGUK has a critical role in sperm development. We will define the cell biology and biochemistry of LRGUK function, we will assess the incidence of LRGUK mutations in human fertility and explore LRGUK function in the brain. Data obtained will have relevance to the 1 in 20 young men who suffer from infertility and the 3 in 1000 children who develop hydrocephalus.
Novel Function Of Heat Shock Protein 2A In The Regulation Of Human Sperm-egg Interactions
Funder
National Health and Medical Research Council
Funding Amount
$302,627.00
Summary
Male infertility is an extremely common condition affecting around 1 in 20 Australian men. One of the major reasons for this pathology is that the spermatozoa have lost their ability to recognize the egg. In this project we shall investigate whether this defect is due to a deficiency in a specific protein (HSPA2). This project will provide new and powerful insights into the causes of male infertility, with practical implications for prevention, diagnosis and treatment of this condition.
Modulation Of Telomere Length And Subtelomeric DNA Methylation In Response To Oxidative Stress In The Male Germ Line; Implications For Tumorigenesis In The Offspring
Funder
National Health and Medical Research Council
Funding Amount
$310,684.00
Summary
This research project is designed to elucidate how the quality of a father’s spermatozoa can impact upon the health and wellbeing of his children. We hypothesize that factors, such as infertility, heavy smoking or age create a state of oxidative stress in the testes and that this stress influences the genetic structure of spermatozoa in such a way that the incidence of spontaneous mutations and susceptibility-to-cancer are significantly elevated in the offspring.
The placenta is essential for fetal-maternal exchange and healthy pregnancy however the factors that are required for the placenta to form are poorly understood. We will investigate how the placenta develops in mice and which are the most important factors that are required for a health placenta to form.
Exercise In Males Born Growth Restricted To Restore Sperm Function Preventing Adverse Offspring Health
Funder
National Health and Medical Research Council
Funding Amount
$708,363.00
Summary
Males born growth restricted transmit heart disease and diabetes to their children. The mechanism of this transmission is unknown, but is likely due to altered sperm function. We aim to determine the impact growth restriction has on sperm function in men and rats, and establish the optimal window for rat exercise intervention to prevent disease transmission. We expect that exercise in juvenile life will prevent, whereas exercise in adults may ameliorate disease outcomes by improving the sperm.
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.
Activin And Its Binding Protein, Follistatin Regulate Functions Of The Epididymis And Vas Deferens
Funder
National Health and Medical Research Council
Funding Amount
$612,736.00
Summary
Male reproductive disease is a serious health issue for many men and their partners. Worldwide, malformations of the male reproductive organs are increasing, infections and chronic inflammation of the genitourinary tract beset sexually active men and aging men, and infertility afflicts one in seven couples desiring children. The causes underlying these conditions are not well-understood. These studies are intended to identify new approaches for preventing and treating these conditions.