luteinizáló

Luteinizing hormone, often abbreviated as LH, is a gonadotropic hormone produced and secreted by the anterior pituitary gland. It plays a crucial role in the reproductive system of both males and females. In females, LH triggers ovulation, the release of a mature egg from the ovary, and stimulates the ruptured follicle to transform into the corpus luteum, which then produces progesterone. The surge in LH levels is a key indicator of impending ovulation and is often monitored in fertility treatments. In males, LH acts on the Leydig cells in the testes, stimulating them to produce testosterone, the primary male sex hormone. Testosterone is essential for the development and maintenance of male reproductive tissues and secondary sexual characteristics. The secretion of LH is regulated by gonadotropin-releasing hormone (GnRH) from the hypothalamus and is subject to negative feedback from sex hormones like estrogen, progesterone, and testosterone. Imbalances in LH levels can lead to various reproductive health issues, including infertility, irregular menstrual cycles, and problems with sperm production.