to assess whether gonadotropin-releasing hormone ( gnrh ) release from the hypothalamus might be altered by hyperprolactinemia in the male rat , we measured in chronically hyperprolactinemic rats the pituitary gnrh receptor content and described the pattern of luteinizing hormone ( lh ) release during the postcastration rise in gonadotropin secretion 24 and 72 h after gonadectomy .
C0023610
gonadotropin-releasing hormone
C0020663
hypothalamus