<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (January 2013) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (January 2013) (Learn how and when to remove this template message) </Td> </Tr> <P> Gonadotropin - releasing hormone (GnRH) also known as gonadoliberin, and by various other names in its endogenous form and as gonadorelin (INN) in its pharmaceutical form, is a releasing hormone responsible for the release of follicle - stimulating hormone (FSH) and luteinizing hormone (LH) from the anterior pituitary . GnRH is a tropic peptide hormone synthesized and released from GnRH neurons within the hypothalamus . The peptide belongs to gonadotropin - releasing hormone family . It constitutes the initial step in the hypothalamic--pituitary--gonadal axis . </P> <P> The identity of GnRH was clarified by the 1977 Nobel Laureates Roger Guillemin and Andrew V. Schally: </P>

Gonadotrophin-releasing hormone from the hypothalamus stimulates the anterior pituitary to release