[Can changes in the gonadotropin response in androgen insensitivity syndrome be detected with the GnRH test following gonadectomy and steroid administration?].

Information about the reaction of the hypothalamic pituitary axis by Gn-Rh-stimulation dependent from gonadectomy and steroid substitution in 3 patients with androgen insensitivity syndrome. The test was done before and after gonadectomy, under receipt of within the intake of a sequential hormonal contraceptive (Sequenz-Ovosiston) in the 16th cycle and after a pill free interval of 3 months, LH and FSH were estimated with a RIA-method. The LH-base-concentration is independent from the moment of the gonadectomy normogonadotrop and indicate after Gn-Rh-stimulation a regular LH-answer. The FSH-reaction is clearly dependent from the moment of gonadectomy. Not the gonadectomy but the steroid substitution over a long time is decisive about the reaction of the adenohypophysis.