Results 41 to 50 of about 126,611 (274)

Gonadotropin‐Inhibitory Hormone (GnIH) and Its Receptor GPR147 Mediates Acute Stress‐Induced Activation of the Locus Coeruleus‐SAM Axis

Advanced Science, EarlyView.
ABSTRACT Gonadotropin‐inhibitory hormone (GnIH, also known as RFamide‐related peptide‐3, RFRP‐3) is a hypothalamic neuropeptide that regulates vertebrate reproduction via its receptor GPR147. Although GnIH is known to mediate stress‐induced reproductive suppression, its role in broader stress responses remains unclear.
Jiani Zhang, Hongyu Zhu, Wenqi Wang, Bingqian Shen, Yuanyuan Xin, Xingxing Song, Xuanyi Lu, Lixuan Li, Siting Chen, Xiaochen Zhang, Jialing Zeng, Haodong Zheng, Jianlong Lao, Ke Peng, Yixian Wei, Jiaming Zheng, Chuanhuo Hu, Xiaoye Wang, Xun Li   +18 more
wiley   +1 more source

Gonadotropin Releasing Hormones and their Receptors in Avian Species

The Journal of Poultry Science, 2006
In all vertebrates, gonadotropin releasing hormone (GnRH) is a key component of the hypothalamo-pituitary-gonadal axis. In birds, two distinct forms of GnRH (cGnRH-I and cGnRH-II) have been characterized, and a third immunoreactive form similar to ...
Grégoy Y. Bédécarrats, Mamiko Shimizu, Daniel Guémené   +2 more
doaj   +1 more source

Disruption of Pituitary Gonadotrope Activity in Male Rats After Short- or Long-Term High-Fat Diets Is Not Associated With Pituitary Inflammation

Frontiers in Endocrinology, 2022
Overnutrition is associated with the activation of inflammatory pathways in metabolically linked organs and an early hypothalamic inflammation is now known to disrupt the central control of metabolic function. Because we demonstrated that fatty acids (FA)
Ghislaine Garrel, Claude Rouch, David L’Hôte, Salma Tazi, Nadim Kassis, Frank Giton, Julien Dairou, Pascal Dournaud, Pierre Gressens, Christophe Magnan, Céline Cruciani-Guglielmacci, Joëlle Cohen-Tannoudji   +11 more
doaj   +1 more source

Impact of gonadal steroids on pituitary gonadotropins in male European sea bass (Dicentrarchus labrax)

, 2017
Trabajo presentado en el 6th International Workshop on the Biology of Fish Gametes, celebrado en Vodňany (República Checa), del 4 al 7 de septiembre de 2017The follicle stimulating hormone (Fsh) and luteinizing hormone (Lh) are central endocrine ...
Ibáñez, Soledad, Molés, Gregorio, Zapater, Cinta, Pinto, Patrícia I. S., Gómez, Ana   +4 more
core   +1 more source

WFS1 Deficiency Impairs PIAS4‐Associated SUMOylation and Increases Ubiquitin‐Mediated Spermatogenesis‐Related Protein Degradation Leading to Testicular Male Infertility

Advanced Science, EarlyView.
The findings establish a critical role for WFS1 in human male fertility. Mechanistically, WFS1 interacts with PIAS4 to promote the SUMOylation of key spermatogenesis‐associated proteins, which in turn competitively inhibits their K48‐linked ubiquitin‐mediated degradation during spermatogenesis.
Yunchuan Tian, Guicheng Zhao, Xiang Wang, Xinyao Tang, Gan Shen, Tiechao Ruan, Chuan Jiang, Shikun Zhao, Jincheng Zhang, Xinyue Cui, Liangchai Zhuo, Jun Ma, Yihong Yang, Tingting Lin, Ying Shen   +14 more
wiley   +1 more source

Gonadotropin-releasing hormone agonist-induced pituitary apoplexy

Endocrinology, Diabetes & Metabolism Case Reports, 2016
Pituitary apoplexy represents an uncommon endocrine emergency with potentially life-threatening consequences. Drug-induced pituitary apoplexy is a rare but important consideration when evaluating patients with this presentation.
Fergus Keane, Aoife M Egan, Patrick Navin, Francesca Brett, Michael C Dennedy   +4 more
doaj   +1 more source

Hormonal control and signaling of the testis of the bat Molossus molossus during the processes of testicular maturation, regression, and recrudescence

The Anatomical Record, EarlyView.
Abstract Molossus molossus, a species of neotropical bat belonging to the Molossidae family, has an annual reproductive cycle that includes two peaks of spermatogenic activity, one in April and another in September, and a period of total testicular regression in December.
Emília M. Soares, Juliana F. Ferraz, Cornélio S. Santiago, Larissa P. R. Venâncio, Arlindo G. Macedo‐Junior, Sebastião R. Taboga, Mateus R. Beguelini   +6 more
wiley   +1 more source

Pituitary Tumors: Advances in Neuroimaging

, 2009
Pediatric pituitary tumors, albeit relatively infrequent, can significantly alter the quality of life of affected children. Accurate diagnostic differentiation is essential for both safe and effective disease management.
ROSSI A. PITUITARY, MORANA G, MAGHNIE, MOHAMAD, Morana, G, G. Morana, A. Rossi, M. Maghnie   +6 more
core   +1 more source

Genetic regulation of pituitary gland development in human and mouse [PDF]

, 2009
Normal hypothalamopituitary development is closely related to that of the forebrain and is dependent upon a complex genetic cascade of transcription factors and signaling molecules that may be either intrinsic or extrinsic to the developing Rathke’s ...
Robin Lovell-Badge, Dattani, M. T., Robinson, I. C. A. F., Mehul T. Dattani, Lovell-Badge, R., Karine Rizzoti, Iain C. A. F. Robinson, Rizzoti, K., Kelberman, D., Daniel Kelberman   +9 more
core   +1 more source

On the Purifiication of Reptilian (Turtle) Pituitary Gonadotropin

Experimental Biology and Medicine, 1972
SummaryTurtle (Pseudemys scripta) pituitaries have been homogenized, extracted with saline, and the gonadotropin partially purified by ammonium sulfate fractionation. The bulk of the gonadotropin was found to precipitate between 0.3 and 0.6 saturated ammonium sulfate which is similar to the solubility behavior of ovine LH. No separation of gonadotropic
H, Papkoff, P, Licht
openaire   +2 more sources