Gubernacular Migration During Testicular Descent And The Role Of The Mammary Line
Funder
National Health and Medical Research Council
Funding Amount
$513,642.00
Summary
This study investigates the role of the mammary line, which forms the breasts in females and is present but invisible in males, in the mechanism of testicular descent.
The Genitofemoral Nerve And Gubernaculum In Testicular Descent And Inguinal Hernia
Funder
National Health and Medical Research Council
Funding Amount
$339,750.00
Summary
This project examines the mechanism of descent of the testis, which when abnormal, leads to the common anomaly in infant boys of undescended testes. In addition, the tunnel through the abdominal wall which permits testicular descent very commonly fails to close afterwards, allowing the intestines to protrude through the hole to cause an inguinal hernia, which is a tender lump in the groin,and requires surgery to resolve. Our long-term aim is to understand testicular descent and inguinal closure ....This project examines the mechanism of descent of the testis, which when abnormal, leads to the common anomaly in infant boys of undescended testes. In addition, the tunnel through the abdominal wall which permits testicular descent very commonly fails to close afterwards, allowing the intestines to protrude through the hole to cause an inguinal hernia, which is a tender lump in the groin,and requires surgery to resolve. Our long-term aim is to understand testicular descent and inguinal closure well enough to develop non-surgical treatments for these two conditions, which are the two commonest abnormalities in children requiring surgery. We will examine how male hormones control descent of the testis indirectly by altering the anatomy and function of a specific nerve suplying the groin and scrotum. A simple and safe treatment that avoided surgery would be a major advance for infants in the developing world.Read moreRead less
The Limb Bud As A Model For Gubernacular Migration During Inguinoscrotal Testicular Descent.
Funder
National Health and Medical Research Council
Funding Amount
$439,073.00
Summary
This project examines the mechanism of descent of the testes from its original position inside the abdomen of the fetus to the scrotum in baby boys. When this process is abnormal, it leads to the common anomaly of undescended testes. Tha ultimate aim is to understand the process well enough to consider nonoperative treatment. The study will look at the tip of the gubernaculum, the ligament that anchors the testis to the groin early in development, and how it develops a growing tip that elongates ....This project examines the mechanism of descent of the testes from its original position inside the abdomen of the fetus to the scrotum in baby boys. When this process is abnormal, it leads to the common anomaly of undescended testes. Tha ultimate aim is to understand the process well enough to consider nonoperative treatment. The study will look at the tip of the gubernaculum, the ligament that anchors the testis to the groin early in development, and how it develops a growing tip that elongates towards the scrotum. The project will examine the factors controlling this process as well as the embryological mechanism involved.Read moreRead less
This project examines the mechanism of descent of the testis, which when abnormal, leads to the common anomaly in children of undescended testes. Our long-term aims is to find a non-surgical treatment for undescended testes, and these studies will significantly aid in that goal. We will look at a completely new testicular hormone as well as a molecule released from nerves to determine their exact role in the mechanism. This project should allow us to understand finally one of the unresolved puzz ....This project examines the mechanism of descent of the testis, which when abnormal, leads to the common anomaly in children of undescended testes. Our long-term aims is to find a non-surgical treatment for undescended testes, and these studies will significantly aid in that goal. We will look at a completely new testicular hormone as well as a molecule released from nerves to determine their exact role in the mechanism. This project should allow us to understand finally one of the unresolved puzzles of the anatomical differences between males and females.Read moreRead less
Postnatal Germ Cells Are Controlled By FSH During 'minipuberty' At 3-6 Months, And Deranged By Cryptorchidism To Cause Seminoma And Infertility
Funder
National Health and Medical Research Council
Funding Amount
$813,739.00
Summary
This study will investigate the exciting possibility that the risk of cancer and infertility in adulthood in infants born with undescended testes might be obviated by understanding how primitive sperm cells behave in the postnatal testis. The study will define the key changes to the primitive sperm cells, including their timing and control by hormones, so surgery is done at the right time +/-accessory hormone treatment to optimise future sperm function for babies with undescended testes.
I seek the knowledge required to improve prevention, diagnosis and therapy for men with testicular pathologies by studying what controls early sperm development. My research will delineate how cellular signalling molecules lay the foundation for adult fertility, using animal studies, cell culture and clinical samples. Testis samples from testicular cancer patients will be used to test interventions that may kill tumour cells or offer a therapeutic option to men with impaired spermatogenesis.