Results 51 to 60 of about 41,351 (154)

Kisspeptin Neurons in the Infundibular Nucleus of Ovariectomized Cats and Dogs Exhibit Unique Anatomical and Neurochemical Characteristics

open access: yesFrontiers in Neuroscience, 2020
Neurons co-synthesizing kisspeptin (KP), neurokinin B (NKB), and dynorphin (“KNDy neurons”) in the hypothalamic arcuate/infundibular nucleus (INF) form a crucial component of the gonadotropin-releasing hormone (GnRH)/luteinizing hormone (LH) “pulse ...
Éva Rumpler   +9 more
doaj   +1 more source

Dynamic Hormone Control of Stress and Fertility

open access: yesFrontiers in Physiology, 2020
Neuroendocrine axes display a remarkable diversity of dynamic signaling processes relaying information between the brain, endocrine glands, and peripheral target tissues.
Eder Zavala   +13 more
doaj   +1 more source

Acute progesterone feedback on gonadotropin secretion is not demonstrably altered in estradiol‐pretreated women with polycystic ovary syndrome

open access: yesPhysiological Reports, 2022
Women with polycystic ovary syndrome (PCOS) demonstrate gonadotropin‐releasing hormone (GnRH) pulse generator resistance to suppression with 7 days of progesterone and estradiol administration.
Su Hee Kim   +4 more
doaj   +1 more source

The neurobiological mechanism underlying hypothalamic GnRH pulse generation: the role of kisspeptin neurons in the arcuate nucleus [version 1; peer review: 4 approved]

open access: yesF1000Research, 2019
This review recounts the origins and development of the concept of the hypothalamic gonadotropin-releasing hormone (GnRH) pulse generator. It starts in the late 1960s when striking rhythmic episodes of luteinizing hormone secretion, as reflected by ...
Tony M. Plant
doaj   +1 more source

Central Mechanism Controlling Pubertal Onset in Mammals: A Triggering Role of Kisspeptin

open access: yesFrontiers in Endocrinology, 2019
Pubertal onset is thought to be timed by an increase in pulsatile gonadotropin-releasing hormone (GnRH)/gonadotropin secretion in mammals. The underlying mechanism of pubertal onset in mammals is still an open question.
Yoshihisa Uenoyama   +3 more
doaj   +1 more source

Molecular and Environmental Mechanisms Regulating Puberty Initiation: An Integrated Approach

open access: yesFrontiers in Endocrinology, 2019
The mechanisms underlying the initiation of puberty, one of the cornerstones of human evolution, have not been fully elucidated as yet. However, recently, an accumulating body of evidence has helped unravel several critical aspects of the process.
Sarantis Livadas, George P. Chrousos
doaj   +1 more source

Advent of NK3R Antagonists for the Treatment of Menopausal Hot Flushes: A Narrative Review

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT The menopause transition is marked by symptoms predominantly attributed to declining oestrogen levels. Approximately 80% of women experience associated symptoms, and 25% experience severe symptoms. The commonest are vasomotor symptoms (VMS), collectively referring to hot flushes and/or night sweats.
Aaran H. Patel   +5 more
wiley   +1 more source

Kisspeptin as a test of hypothalamic dysfunction in pubertal and reproductive disorders

open access: yesAndrology, EarlyView.
Abstract The hypothalamic–pituitary–gonadal axis is regulated by the gonadotropin‐releasing hormone pulse generator in the hypothalamus. This is comprised of neurons that secrete kisspeptin in a pulsatile manner to stimulate the release of GnRH, and, in turn, downstream gonadotropins from the pituitary gland, and subsequently sex steroids and ...
Aureliane C. S. Pierret   +5 more
wiley   +1 more source

Regulation of gonadotropins by corticotropin-releasing factor and urocortin

open access: yesFrontiers in Endocrinology, 2013
While stress activates the hypothalamic-pituitary-adrenal (HPA) axis, it suppresses the hypothalamic-pituitary-gonadal (HPG) axis. Corticotropin-releasing factor (CRF) is a major regulatory peptide in the HPA axis during stress.
Kazunori eKageyama
doaj   +1 more source

Homo sapiens, industrialisation and the environmental mismatch hypothesis

open access: yesBiological Reviews, EarlyView.
ABSTRACT For the vast majority of the evolutionary history of Homo sapiens, a range of natural environments defined the parameters within which selection shaped human biology. Although human‐induced alterations to the terrestrial biosphere have been evident for over 10,000 years, the pace and scale of change has accelerated dramatically since the onset
Daniel P. Longman, Colin N. Shaw
wiley   +1 more source

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