Gonadotropinikäynnistävä

Gonadotropinikäynnistävä is a Finnish term that translates to "gonadotropin-releasing" or "gonadotropin-stimulating" in English. It refers to substances or treatments that stimulate the release or activity of gonadotropins. Gonadotropins are a group of hormones produced by the pituitary gland that play a crucial role in the reproductive system. The primary gonadotropins are luteinizing hormone (LH) and follicle-stimulating hormone (FSH).

These hormones are essential for the development and function of the gonads, which are the ovaries in females and the testes in males. In females, FSH stimulates the growth and maturation of ovarian follicles, while LH triggers ovulation and the production of progesterone. In males, FSH is involved in sperm production (spermatogenesis), and LH stimulates the testes to produce testosterone.

Gonadotropinikäynnistävä treatments are used in various medical contexts, particularly in fertility treatments. For example, medications that stimulate the pituitary gland to release more LH and FSH are administered to women undergoing in vitro fertilization (IVF) or other assisted reproductive technologies to encourage the development of multiple eggs. Similarly, in cases of male infertility where there is insufficient natural production of LH and FSH, gonadotropin-releasing substances or direct gonadotropin injections may be used to stimulate sperm production. The term can also apply to naturally occurring substances or physiological processes that lead to the release of these reproductive hormones.