Regulation of testicular steroidogenesis

In 2002, data collected in the US show that vasectomy was used by % of men ages 15-44 and that this represents the fourth most commonly-used contraceptive method. The first three were condoms, used by % of men, oral contraceptives for women used by % of couples and tubal ligation used by % of couples. 7 Compared to tubal ligation , which is also a method of permanent contraception, vasectomy is equally effective in preventing pregnancy; however, vasectomy is simpler, faster, safer and less expensive. Vasectomy is one of the most cost-effective of all methods of contraception; its cost is about one-fourth of the cost of tuba lligation. 8 Vasectomy requires less time off work, requires only local rather than general anesthesia and is usually performed in a doctor's office or clinic. The potential complications of vasectomy are less serious than those of tubal ligation.

Genetic females (46,XX karyotype) have two X chromosomes, thus have two AR genes. A mutation in one (but not both) results in a minimally affected, fertile, female carrier. Some carriers have been noted to have slightly reduced body hair, delayed puberty, and/or tall stature, presumably due to skewed X-inactivation. [3] [4] A female carrier will pass the affected AR gene to her children 50% of the time. If the affected child is a genetic female, she, too, will be a carrier. An affected 46,XY child will have AIS.

The surgeon begins with four small incisions, approximately half an inch long, in the upper right side of the abdomen. Two of these incisions allow the surgeon to place surgical instruments in the abdominal cavity. The third incision is used to insert the laparoscope , an instrument that has a light and a video camera that allows the surgeon to view the surgery on a monitor while working. The fourth incision is used to insert a port that releases carbon dioxide gas, inflating the abdomen to allow better visualization and more room to work.

Regulation of testicular steroidogenesis

regulation of testicular steroidogenesis


regulation of testicular steroidogenesisregulation of testicular steroidogenesisregulation of testicular steroidogenesisregulation of testicular steroidogenesisregulation of testicular steroidogenesis