Hormonal changes of the normal menstrual cycle.

• Autores: Garmendia, Fausto, Ludmir, Abraham
• Formato: artículo
• Fecha de Publicación: 2015
• Institución: Sociedad Peruana de Obstetricia y Ginecología
• Repositorio: Revista Peruana de Ginecología y Obstetricia
• Lenguaje: español
• OAI Identifier: oai:ginecologiayobstetricia.pe:article/1444
• Enlace del recurso: https://ginecologiayobstetricia.pe/index.php/RPGO/article/view/1444
• Nivel de acceso: acceso abierto

Hormonal variations that characterize the normal menstrual cycle, noting that depends on adequate hypothalamic-pituitary-ovarian interaction are reviewed. He realizes the daily changes of the gonadotropins, estrogens and progesterone, as measured by radioimmunoassay blood analysis, gained over 7 normal menstrual cycles. It was found that the concentrations of FSH and LH are slightly higher in the follicular phase than in the luteal, displaying all mesocíclica them a matching rise in the ovulatory phase of both LH and FSH. Estradiol showed a significant elevation pre-ovulatory surge of gonadotropins and another in the luteal phase. Progesterone remained at a low level during the follicular phase increase substantially since the onset of the ovulatory peak of gonadotropins. The meaning of these hormonal changes is discussed.