Pituitary gonadotropin releasing hormone (GnRH) receptor levels in intact and ovariectomized-adrenalectomized female golden hamsters on a short photoperiod.
Both intact and ovariectomized + adrenalectomized hamsters on a short photoperiod, had a daily surge in plasma LH at approximately 16.00-18.00 h. The number of pituitary GnRH receptors was generally lower in ovariectomized + adrenalectomized hamsters than in intact animals, but both intact and ovariectomized + adrenalectomized hamsters had a decrease in the number of receptors just prior to the LH surge. These results show that gonadal steroids are not involved in regulating the pre-LH surge fall in the number of GnRH receptors.
D000315:Adrenalectomy; D000818:Animals; D006224:Cricetinae; D005260:Female; D008027:Light; D007986:Luteinizing Hormone / Q000097:blood; D008647:Mesocricetus; D010052:Ovariectomy; D010507:Periodicity; D010902:Pituitary Gland / Q000378:metabolism / Q000528:radiation effects*; D011956:Receptors, Cell Surface / Q000378:metabolism* / Q000528:radiation effects; D011966:Receptors, LHRH
D011956:Receptors, Cell Surface; D011966:Receptors, LHRH; D007986:Luteinizing Hormone