Facilitatory and inhibitory role of central amylin administration in the regulation of the gonadotropin-releasing hormone pulse generator activity in goats
Facilitatory and inhibitory role of central amylin administration in the regulation of the gonadotropin-releasing hormone pulse generator activity in goats
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中央胰淀素给药在调节山羊促性腺激素释放激素脉冲发生器活性中的促进和抑制作用
DOI:
10.1016/j.neulet.2020.135276
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发表时间:
2020
影响因子:
2.5
通讯作者:
H. and Ohkura. S.
中科院分区:
文献类型:
--
作者:
Kitagawa;Y.;Sasaki;T.;Suzumura;R.;Morishima;A.;Tatebayashi;R.;Assadullah;Ieda;N.;Morita;Y.;Matsuyama;S.;Inoue;N.;Uenoyama;Y. Tsukamura;H. and Ohkura. S.
Pulsatile gonadotropin-releasing hormone (GnRH) secretion is essential for regulating reproductive functions in mammals. GnRH pulses are governed by a neural mechanism that is termed the GnRH pulse generator. In the present study, we investigated the role of central calcitonin receptor (CTR) signaling in the regulation of the GnRH pulse generator activity in ovariectomized goats by administering amylin, an endogenous ligand for CTR, into the lateral ventricle. GnRH pulse generator activity was measured using multiple unit activity (MUA) recordings in the mediobasal hypothalamus. We analyzed changes in the interval of characteristic increases in MUA (MUA volleys). The MUA volley interval shortened immediately after amylin administration, followed by prolonged intervals. Doublein situhybridization forKISS1(kisspeptin gene) andCALCR(CTR gene) revealed that low expression levels ofCALCRwere found in the arcuate kisspeptin neurons, which is suggested as the main population of neurons, involved in GnRH pulse generator activity. These results suggest that central amylin-CTR signaling has a biphasic role in the regulation of GnRH pulse generator activity by acting on cells other than the arcuate kisspeptin neurons in goats.
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DOI:
10.1507/endocrj1954.34.709
发表时间:
1987
期刊:
Endocrinologia japonica
影响因子:
--
作者:
K. Maeda;H. Tsukamura;A. Yokoyama
通讯作者:
A. Yokoyama
影响因子:
4.1
作者:
KAWAKAMI, M;UEMURA, T;HAYASHI, R
通讯作者:
HAYASHI, R
影响因子:
5.3
作者:
Wakabayashi, Yoshihiro;Nakada, Tomoaki;Okamura, Hiroaki
通讯作者:
Okamura, Hiroaki
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
R. K. Larsen;Francisca R. Dimaano;M. Pido
通讯作者:
M. Pido
DOI:
--
发表时间:
1999
期刊:
American Journal of Physiology. Endocrinology and Metabolism
影响因子:
--
作者:
S. Tsai;Chien‐Chen Lu;Jiann‐Jong Chen;Y. Chiao;Shyi;J. Hwang;Paulus S. Wang
通讯作者:
Paulus S. Wang