Results 31 to 40 of about 41,351 (154)
Journal of reproduction and development, 2004 The time course of GnRH pulse generator activity and plasma concentrations of energy substrates and insulin were simultaneously observed in female goats during 4-day fasting and subsequent refeeding in the presence or absence of estrogen for a better ...
S. Matsuyama +6 more
semanticscholar +3 more sources
, 1999 Male pheromones in ruminant species such as sheep and goats are known to reactivate quiescent ovarian function in seasonally anestrous females. We have previously shown that only a few minutes exposure to the male pheromone can accelerate the GnRH pulse ...
T. Ichimaru, Y. Takeuchi, Y. Mori
semanticscholar +3 more sources
Role of Posterodorsal Medial Amygdala Urocortin-3 in Pubertal Timing in Female Mice
Frontiers in Endocrinology, 2022 Post-traumatic stress disorder impedes pubertal development and disrupts pulsatile LH secretion in humans and rodents. The posterodorsal sub-nucleus of the medial amygdala (MePD) is an upstream modulator of the hypothalamic gonadotropin-releasing hormone
Deyana Ivanova +8 more
doaj +1 more source
Suppression of the GnRH pulse generator by neurokinin B involves a κ-opioid receptor-dependent mechanism. [PDF]
Endocrinology, 2012 P. Grachev +6 more
semanticscholar +2 more sources
eLife, 2021 Pulsatile GnRH release is essential for normal reproductive function. Kisspeptin secreting neurons found in the arcuate nucleus, known as KNDy neurons for co-expressing neurokinin B, and dynorphin, drive pulsatile GnRH release.
Margaritis Voliotis +7 more
doaj +1 more source
Emerging Perspectives on Gonadotropin Regulation in Vertebrates Revealed by the Discovery of FSH-RH in Teleosts. [PDF]
BioessaysRegarding pituitary gonadotropin regulation, recent studies have shown that in mammals, FSH and LH are regulated by a single GnRH (solo GnRH model), whereas in teleosts, they are regulated by CCK (FSH‐RH) and GnRH (LH‐RH), respectively (dual GnRH model).
Kayo D, Uehara SK, Royan MR, Kanda S.
europepmc +2 more sources
Dynamics of pulsatile activities of arcuate kisspeptin neurons in aging female mice
eLife, 2023 Reproductive senescence is broadly observed across mammalian females, including humans, eventually leading to a loss of fertility. The pulsatile secretion of gonadotropin-releasing hormone (GnRH), which is essential for gonad function, is primarily ...
Teppei Goto +2 more
doaj +1 more source
A population of kisspeptin/neurokinin B neurons in the arcuate nucleus may be the central target of the male effect phenomenon in goats. [PDF]
PLoS ONE, 2013 Exposure of females to a male pheromone accelerates pulsatile gonadotropin-releasing hormone (GnRH) secretion in goats. Recent evidence has suggested that neurons in the arcuate nucleus (ARC) containing kisspeptin and neurokinin B (NKB) play a pivotal ...
Kohei Sakamoto +6 more
doaj +1 more source
Opioidergic pathways and kisspeptin in the regulation of female reproduction in mammals
Frontiers in Neuroscience, 2022 Endogenous opioid peptides have attracted attention as critical neuropeptides in the central mechanism regulating female reproduction ever since the discovery that arcuate dynorphin neurons that coexpress kisspeptin and neurokinin B (NKB), which are also
Yoshihisa Uenoyama +4 more
doaj +1 more source
eLife, 2021 The necessity and functional significance of neurotransmitter co-transmission remains unclear. The glutamatergic ‘KNDy’ neurons co-express kisspeptin, neurokinin B (NKB), and dynorphin and exhibit a highly stereotyped synchronized behavior that reads out
Xinhuai Liu +7 more
doaj +1 more source