Results 41 to 50 of about 131,230 (368)

Characterization of Constitutively Activating Eel Follicle-Stimulating Hormone Receptor

Journal of Animal Reproduction and Biotechnology, 2019
This study aimed to investigate the function of the constitutively activating mutation D540G on eel FSHR activity by in vitro functional studies. Site-directed mutagenesis was carried out to generate the D-to-G mutation at position 540 of the pcDNA3-eel ...
Jeong-Soo Kim, Munkhzaya Byambaragchaa, Kwan-Sik Min   +2 more
doaj   +1 more source

Seasonal Expression of Gonadotropin Genes in the Pituitary and Testes of Male Plateau Zokor (Eospalax baileyi)

Animals, 2022
The gonadotropins, luteinizing hormone (LH) and follicle stimulating hormone (FSH), are glycoprotein hormones in the hypothalamic-pituitary-gonadal (HPG) axis and regulate mammalian reproduction.
Kang An, Baohui Yao, Yukun Kang, Mingfang Bao, Yuchen Tan, Qiangsheng Pu, Junhu Su   +6 more
doaj   +1 more source

Leptin receptor in the chicken ovary: potential involvement in ovarian dysfunction of ad libitum-fed broiler breeder hens [PDF]

, 2004
In hens, the ovarian follicles committed to ovulation are arranged in an ordered follicular hierarchy. In standard broiler breeders hens genetically selected for high growth rate the reproductive function is clearly dysfunctional.
Cassy, Sandrine, Collin, Anne, Crochet, Sabine, Metayer, Sonia, Rideau, Nicole, Tesseraud, Sophie   +5 more
core   +3 more sources

The Expression of the Follicle-stimulating Hormone Receptor in Spermatogenesis

Recent Progress in Hormone Research, 2002
Results from experiments using mouse models suggest that the role of follicle-stimulating hormone (FSH) in spermatogenesis is the regulation of Sertoli cell proliferation and, ultimately, the size and spermatogenic capacity of the testis. The regulation of the expression of the FSH receptor (FSHR) gene is very cell specific and plays an initial role in
Heckert, Leslie L, Griswold, Michael D
openaire   +4 more sources

Luteinizing hormone-like and follicle-stimulating hormone-like activities of equine chorionic gonadotropin β-subunit mutants in cells expressing rat luteinizing hormone/chorionic gonadotropin receptor and rat follicle-stimulating hormone receptor

Animal Cells and Systems, 2021
To identify the specific region of eCG involved in FSH-like activity, the following mutant expression vectors were constructed targeting the amino acid residues 102–104 of the eCG β-subunit: single mutants, eCGβV102G/α, eCGβF103P/α, and eCGβR104K/α ...
Munkhzaya Byambaragchaa, Ayoung Park, So-Jin Gil, Hae-Won Lee, Yun-Jeong Ko, Seung-Hee Choi, Myung-Hwa Kang, Kwan-Sik Min   +7 more
doaj   +1 more source

Constitutively active follicle-stimulating hormone receptor enables androgen-independent spermatogenesis

Journal of Clinical Investigation, 2018
Spermatogenesis is regulated by the 2 pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH). This process is considered impossible without the absolute requirement of LH-stimulated testicular testosterone (T) production.
O. Oduwole, H. Peltoketo, Ariel H. B. Poliandri, Laura Vengadabady, M. Chrusciel, M. Doroszko, L. Samanta, L. Owen, B. Keevil, N. Rahman, I. Huhtaniemi   +10 more
semanticscholar   +1 more source

Peripheral and central mechanisms involved in hormonal control of male and female reproduction [PDF]

, 2016
Reproduction involves the integration of hormonal signals acting across multiple systems togenerate a synchronized physiological output. A critical component of reproduction is the luteinizinghormone (LH) surge, which is mediated by estradiol (E2) and ...
Bentley, G. E., Calandra, Ricardo Saul, Micevych, P. E., Paredes, A. H., Rudolph, L. M., Tesone, Marta, Wu, T. J.   +6 more
core   +1 more source

Luteinizing hormone concentrations in healthy horses and horses with trigeminal-mediated headshaking over an 8-hour period. [PDF]

, 2019
BackgroundTrigeminal-mediated headshaking results from a low threshold for firing of the trigeminal nerve. A seasonal component has been implicated in onset of clinical signs, which occur during the spring and summer months.
Aleman, Monica, Costa, Lais Rosa R, Howey, Quinn, Madigan, John E, Santoyo, Ana C, Sheldon, Shara A, Weich, Kalie M   +6 more
core   +2 more sources

Species-specific differences in follicular antral sizes result from diffusion-based limitations on the thickness of the granulosa cell layer

, 2013
The size of mature oocytes is similar across mammalian species, yet the size of ovarian follicles increases with species size, with some ovarian follicles reaching diameters more than 1000-fold the size of the enclosed oocyte.
Bächler, M., De Geyter, Ch., Iber, D., Menshykau, D.   +3 more
core   +1 more source

Gonadotropins in the Russian Sturgeon: Their Role in Steroid Secretion and the Effect of Hormonal Treatment on Their Secretion. [PDF]

, 2016
In the reproduction process of male and female fish, pituitary derived gonadotropins (GTHs) play a key role. To be able to specifically investigate certain functions of Luteinizing (LH) and Follicle stimulating hormone (FSH) in Russian sturgeon ...
Aizen, Joseph, Boehm, Benjamin, Degani, Gad, Golan, Matan, Hollander-Cohen, Lian, Hurvitz, Avshalom, Levavi-Sivan, Berta, Shpilman, Michal, Yom-Din, Svetlana   +8 more
core   +3 more sources