Sixty-four canine cutaneous round cell tumors were divided into 25 mast cell. tumors, I5 histiocytomas, nine cutaneous lymphosarcornas and 15 transmissible venereal. tumors. The final diagnosis was made from cytologic, clinical and histologic findings.
Gonadotropin-releasing hormone (GnRH) Written By: Gonadotropin-releasing hormone (GnRH), also known as luteinizing hormone-releasing hormone, a neurohormone consisting of 10 amino acids that is produced in the arcuate nuclei of the hypothalamus. GnRH stimulates the synthesis and secretion of the two gonadotropinsâluteinizing hormone (LH) and follicle-stimulating hormone (FSH)âby the anterior pituitary gland.
The Hypothalamus and the Pituitary. The hypothalamus is located centrally in the brain and communicates by way of an exchange of blood with the pituitary gland. Several neuroendocrine agents, or hormones, are produced by the hypothalamus. The most important hormone for reproduction is called gonadotropin releasing hormone, better known as GnRH.