Mayuko Nagae, Koki Yamada, Yuki Enomoto, Mari Kometani, Hitomi Tsuchida, Arvinda Panthee, Miku Nonogaki, Nao Matsunaga, Marina Takizawa, Sena Matsuzaki, Masumi Hirabayashi, Naoko Inoue, Hiroko Tsukamura, Yoshihisa Uenoyama
The gonadotropin-releasing hormone (GnRH) pulse and surge are considered to be generated by arcuate kisspeptin/neurokinin B/dynorphin A (KNDy) neurons and anteroventral periventricular nucleus (AVPV) kisspeptin neurons, respectively, in female rodents. The majority of KNDy and AVPV kisspeptin neurons express κ-opioid receptors (KORs, encoded by Oprk1) in female rodents. Thus, this study aimed to investigate the effect of a conditional Oprk1-dependent Kiss1 deletion in kisspeptin neurons on the luteinizing hormone (LH) pulse/surge and fertility using Kiss1-floxed/Oprk1-Cre rats, in which Kiss1 was deleted in cells expressing or once expressed the Oprk1/Cre...
November 22, 2023: Scientific Reports