Results 31 to 40 of about 829,091 (166)

A population of kisspeptin/neurokinin B neurons in the arcuate nucleus may be the central target of the male effect phenomenon in goats. [PDF]

open access: yesPLoS 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

open access: yesFrontiers 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

Highly redundant neuropeptide volume co-transmission underlying episodic activation of the GnRH neuron dendron

open access: yeseLife, 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

Peripheral administration of SB223412, a selective neurokinin-3 receptor antagonist, suppresses pulsatile luteinizing hormone secretion by acting on the gonadotropin-releasing hormone pulse generator in estrogen-treated ovariectomized female goats

open access: yesThe Journal of Reproduction and Development, 2020
Accumulating evidence suggests that KNDy neurons located in the hypothalamic arcuate nucleus (ARC), which are reported to express kisspeptin, neurokinin B, and dynorphin A, are indispensable for the gonadotropin-releasing hormone (GnRH) pulse generation ...
Takuya SASAKI   +14 more
doaj   +1 more source

Kisspeptin Is a Component of the Pulse Generator for GnRH Secretion in Female Sheep But Not THE Pulse Generator [PDF]

open access: yesEndocrinology, 2015
We tested the hypothesis that kisspeptin cells constitute the “pulse generator” for GnRH secretion. In ewes, we determined whether iv administered kisspeptin elicits a secretory pulse of LH in anaesthetized, sex-steroid suppressed ovariectomized ewes.
Ahmed, Ezzat   +2 more
openaire   +2 more sources

Ethanolamine plasmalogens increase luteinising hormone pulsatility and are associated with GPR61 expression in bovine gonadotrophin-releasing hormone neurons. [PDF]

open access: yesJ Neuroendocrinol
Ethanolamine plasmalogens increased LH pulse frequency. GPR61 was expressed in GnRH neurons and gonadotrophs, suggesting a role in neuroendocrine regulation. Ethanolamine plasmalogens (EPls), but not choline plasmalogens (CPls), may act via GPR61 expressed in GnRH neurons in the preoptic area and in anterior pituitary gonadotrophs.
Kadokawa H   +4 more
europepmc   +2 more sources

Kisspeptin Restores Pulsatile LH Secretion in Patients with Neurokinin B Signaling Deficiencies:Physiological, Pathophysiological and Therapeutic Implications [PDF]

open access: yes, 2012
Pulsatile gonadotropin-releasing hormone (GnRH) is crucial to normal reproductive function and abnormalities in pulse frequency give rise to reproductive dysfunction.
Young, Jacques   +13 more
core   +1 more source

A Fully Differential Digital CMOS Pulse UWB Generator [PDF]

open access: yes, 2009
A new fully-digital CMOS pulse generator for impulse-radio Ultra-Wide-Band (UWB) systems is presented. First, the shape of the pulse which best fits the FCC regulation in the 3.1-5 GHz sub-band of the entire 3.1-10.6 GHz UWB bandwidth is derived and ...
Graziano, Mariagrazia   +2 more
core   +1 more source

Kisspeptin-neuron control of LH pulsatility and ovulation

open access: yesFrontiers in Endocrinology, 2022
Feedback from oestradiol (E2) plays a critical role in the regulation of major events in the physiological menstrual cycle including the release of gonadotrophins to stimulate follicular growth, and the mid-cycle luteinising hormone (LH) surge that leads
Harvey Stevenson   +11 more
doaj   +1 more source

Integrating Models to Decode the GnRH Pulse Generator

open access: yes
Abstract The gonadotrophin-releasing hormone (GnRH) pulse generator is a critical neural oscillator that governs reproductive function through the pulsatile release of luteinising hormone (LH) and follicle stimulating hormone (FSH).
Nechyporenko K   +5 more
europepmc   +2 more sources

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