Results 11 to 20 of about 108,821 (255)

A Novel Gonadotropin-Releasing Hormone 1 (Gnrh1) Enhancer-Derived Noncoding RNA Regulates Gnrh1 Gene Expression in GnRH Neuronal Cell Models. [PDF]

open access: yes, 2016
Gonadotropin-releasing hormone (GnRH), a neuropeptide released from a small population of neurons in the hypothalamus, is the central mediator of the hypothalamic-pituitary-gonadal axis, and is required for normal reproductive development and function ...
Brusman, Liza E   +4 more
core   +22 more sources

GnRH antagonists

open access: yesEuropean Journal of Obstetrics & Gynecology and Reproductive Biology, 2004
Ovarian stimulation is an important step in the success rate of in vitro fertilization (IVF) allowing multiple follicular growth, several oocytes and consequently more embryos. The combination of GnRH-antagonists (GnRH-ant) and gonadotrophins is now available for clinical use and represent a valid alternative to classical protocol with GnRH agonist ...
COCCIA, MARIA ELISABETTA   +3 more
openaire   +3 more sources

Regulation of reproduction via tight control of gonadotropin hormone levels. [PDF]

open access: yes, 2018
Mammalian reproduction is controlled by the hypothalamic-pituitary-gonadal axis. GnRH from the hypothalamus regulates synthesis and secretion of gonadotropins, LH and FSH, which then control steroidogenesis and gametogenesis. In females, serum LH and FSH
Coss, Djurdjica
core   +1 more source

Effects of Gonadotropin Releasing Hormone (GnRH) on bovine spermatogonial stem cell proliferationatogonial stem cells proliferation [PDF]

open access: yesThe Iranian Journal of Veterinary Science and Technology, 2014
Identification of exogenous factors affecting spermatogonial stem cells (SSCs) proliferation in vitro, provides worthy ways to study the basic biology of the cells.
Parviz Tajik   +5 more
doaj   +1 more source

A role for GABA agonist in controlling the reproduction of female rats via hypothalamic ghrelin, kisspeptin, and RFRP-3 gene expression [PDF]

open access: yesThe Iranian Journal of Veterinary Science and Technology, 2021
Kisspeptin stimulates gonadotropin releasing hormone (GnRH). The GnRH neurons receive inhibitory inputs from ghrelin, RFamide related peptide-3 (RFRP-3), and gamma-aminobutyric acid (GABA) neurons.
Elaheh Rahimi Rick   +4 more
doaj   +1 more source

The Role of the Brain in the Pathogenesis and Physiology of Polycystic Ovary Syndrome (PCOS). [PDF]

open access: yes, 2019
Polycystic ovary syndrome (PCOS) is a common reproductive endocrine disorder, affecting at least 10% of women of reproductive age. PCOS is typically characterized by the presence of at least two of the three cardinal features of hyperandrogenemia (high ...
Coutinho, Eulalia A   +1 more
core   +1 more source

COMPARATIVE STUDY OF USE SOMETREATMENTAL REGIMES TOTREAT POSTPARTUM FUNCTIONAL INFERTILITY OF COWS IN BASRA [PDF]

open access: yesBasrah Journal of Veterinary Research, 2019
Postpartum an estrus in cows is regarded as one of the most important causes of functional infertility after parturition during reproductive lifespan. Therefor the present study was conducted to induce fertile estrus in anestrus cows which suffered from ...
doaj   +1 more source

Morphological evidence for enhanced kisspeptin and neurokinin B signaling in the infundibular nucleus of the aging man. [PDF]

open access: yes, 2012
Peptidergic neurons synthesizing kisspeptin (KP) and neurokinin B (NKB) in the hypothalamic infundibular nucleus have been implicated in negative sex steroid feedback to GnRH neurons. In laboratory rodents, testosterone decreases KP and NKB expression in
Bloom, Stephen R.   +11 more
core   +1 more source

GnRH agonist triggering: recent developments [PDF]

open access: yesReproductive BioMedicine Online, 2013
The concept that a bolus of gonadotrophin-releasing hormone agonist (GnRHa) can replace human chorionic gonadotrophin(HCG) as a trigger of final oocyte maturation was introduced several years ago. Recent developments in the area strengthen this premise.
Kol, Shahar   +2 more
openaire   +4 more sources

Comparative Study For The Treatment Of Inactive Ovary In Local Iraqi Breed Cow By Using Massage Method Of The Ovaries And GnRH

open access: yesJournal of Applied Veterinary Sciences, 2021
This study was conducted on 40 cows suffering from inactive ovaries brought to the Teaching Veterinary clinic of College of Veterinary, University of Mosul.
Elias K. Hussein, Mohammed Yaurb
doaj   +1 more source

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