Results 81 to 90 of about 311,390 (296)

Structural and Functional Divergence of Gonadotropin-Inhibitory Hormone from Jawless Fish to Mammals

Frontiers in Endocrinology, 2014
Gonadotropin-inhibitory hormone (GnIH) was discovered as a novel hypothalamic peptide that inhibits gonadotropin release in the quail. The presence of GnIH-homologous peptides and its receptors (GnIHRs) have been demonstrated in various vertebrate ...
S. Ogawa, I. Parhar
semanticscholar   +1 more source

Parathyroid localization [PDF]

, 1986
Twenty-nine consecutive patients with suspected primary hyperparathyroidism were examined preoperatively using ultrasound, sonographically guided fine needle aspiration, and aspirate immunostaining for PTH.
Borisch, B., Gutekunst, R., Hafermann, W., Kiffner, E., Löhrs, U., Scriba, Peter Christian, Thies, E., Valesky, A.   +7 more
core   +1 more source

Effective “off-on” switch for fertility control in female zebrafish

Frontiers in Marine Science
The implementation of a controllable sterility strategy is crucial for the commercialization of precise trait improvements in farmed fish using genome editing and sustainable development of fisheries.
Shengchi Shi, Shengchi Shi, Yuqing Zhang, Yuqing Zhang, Jianfei Huang, Jianfei Huang, Qiyong Lou, Xia Jin, Jiangyan He, Gang Zhai, Gang Zhai, Gang Zhai, Zhan Yin, Zhan Yin, Zhan Yin, Zhan Yin   +15 more
doaj   +1 more source

Inducible Kiss1 knockdown in the hypothalamic arcuate nucleus suppressed pulsatile secretion of luteinizing hormone in male mice

The Journal of Reproduction and Development, 2020
Accumulating evidence suggests that kisspeptin-GPR54 signaling is indispensable for gonadotropin-releasing hormone (GnRH)/gonadotropin secretion and consequent reproductive functions in mammals. Conventional Kiss1 knockout (KO) mice and rats are reported
Shiori MINABE, Sho NAKAMURA, Eri FUKUSHIMA, Marimo SATO, Kana IKEGAMI, Teppei GOTO, Makoto SANBO, Masumi HIRABAYASHI, Junko TOMIKAWA, Takuya IMAMURA, Naoko INOUE, Yoshihisa UENOYAMA, Hiroko TSUKAMURA, Kei-Ichiro MAEDA, Fuko MATSUDA   +14 more
doaj   +1 more source

Update on male reproductive endocrinology. [PDF]

, 2018
Practitioners of male reproductive and sexual medicine must have an intimate understanding of the physiology of male reproductive endocrinology, as such a knowledge is the cornerstone on which hormonal treatments are based.
Clavijo, Raul, Hsiao, Wayland
core   +1 more source

The Value of Comparative Animal Research : Krogh’s Principle Facilitates Scientific Discoveries [PDF]

, 2017
There are no conflicts of interest to declare. This paper developed from the 2016 Early Career Impact Award from the Federation of Associations in Behavioral & Brain Sciences to TJS. TJS has received funding from The Leverhulme Trust.
Alward, Beau A., Ebling, Francis J. P., Fernald, Russell D., Kelly, Aubrey, Ophir, Alexander G., Stevenson, Tyler J   +5 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

Review: regulatory mechanisms of gonadotropin-inhibitory hormone (GnIH) synthesis and release in photoperiodic animals

Frontiers in Neuroscience, 2013
Gonadotropin-inhibitory hormone (GnIH) is a novel hypothalamic neuropeptide that was discovered in quail as an inhibitory factor for gonadotropin release. GnIH inhibits gonadotropin synthesis and release in birds through actions on gonadotropin-releasing
K. Tsutsui, T. Ubuka, G. Bentley, L. Kriegsfeld   +3 more
semanticscholar   +1 more source

Up-To-Date Review About Minipuberty and Overview on Hypothalamic-Pituitary-Gonadal Axis Activation in Fetal and Neonatal Life

Frontiers in Endocrinology, 2018
Minipuberty consists of activation of the hypothalamic-pituitary-gonadal (HPG) axis during the neonatal period, resulting in high gonadotropin and sex steroid levels, and occurs mainly in the first 3–6 months of life in both sexes. The rise in the levels
Lucia Lanciotti, Marta Cofini, Alberto Leonardi, Laura Penta, Susanna Esposito   +4 more
doaj   +1 more source

Sex-change chemicals and their influence on the brain. [PDF]

, 2001
The potential for man-made chemicals to mimic or antagonise natural hormones is a controversial issue, but one for which increasing amounts of evidence are being gathered worldwide.
Harris, CA
core   +3 more sources