Results 81 to 90 of about 155,820 (386)

Gonadotropin-Inhibitory Hormone (GnIH):Discovery, Progress and Perspecitive

The Journal of Poultry Science, 2006
Probing undiscovered neuropeptides that play important roles in the regulation of pituitary function is essential for the progress of avian endocrinology and neuroendocrinology. Neuropeptide control of gonadotropin secretion at the level of the anterior
Kazuyoshi Tsutsui
doaj   +1 more source

Transcriptome analysis reveals effects of ethynylestradiol and bisphenol A on multiple endocrine and metabolic pathways in the pituitary and liver of female Atlantic cod (Gadus morhua)

Frontiers in Endocrinology
IntroductionThe pituitary and liver are among the main sites of action of estrogens in fish. Years of research has shown that xenoestrogens can interfere with functions of estrogens. There is however incomplete understanding of xenoestrogen targets genes,
Fekadu Yadetie, Xiaokang Zhang, Anna Reboa, Gwenaëlle Samantha Chloe Noally, Mariann Eilertsen, Mitchell Stewart Fleming, Jon Vidar Helvik, Inge Jonassen, Anders Goksøyr, Odd André Karlsen   +9 more
doaj   +1 more source

Synthesis and secretion of gonadotropins including structure-function correlates

Reviews in Endocrine & Metabolic Disorders, 2011
The synthesis and secretion of the gonadotropic hormones involves coordination of signal transduction, gene expression, protein translation, post-translational folding and modification and finally secretion.
G. Bousfield, J. Dias
semanticscholar   +1 more source

The mitochondrial DNA copy number and ovary‐related reproductive disorders: A bidirectional two‐sample Mendelian randomization study

International Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 112-120, April 2025.
Abstract Objective In the present study, a bidirectional two‐sample Mendelian randomization approach was utilized to explore potential causal relationships between mitochondrial DNA copy number (mtDNA‐CN) and ovary‐related reproductive disorders (ORRDs), including ovarian dysfunction, ovarian cyst, polycystic ovary syndrome (PCOS), premature ovarian ...
Ke Peng, Xiao Han, Congquan Wu, Qiaowen Lu, Shujun Gao   +4 more
wiley   +1 more source

Pituitary glycoprotein hormone a-subunit secretion by cirrhotic patients

Brazilian Journal of Medical and Biological Research, 1999
Secretion of the a-subunit of pituitary glycoprotein hormones usually follows the secretion of intact gonadotropins and is increased in gonadal failure and decreased in isolated gonadotropin deficiency.
Oliveira M.C., Pizarro C.B., Cassal A., Cremonese R., Vieira J.G.H.   +4 more
doaj  

The direct response of the gonads to cues of stress in a temperate songbird species is season-dependent. [PDF]

, 2013
The gonadotropin releasing hormone (GnRH) system in the hypothalamus is often considered the final point in integration of environmental cues as they pertain to the reproductive axis.
Bentley, George, Koh, Annie, McGuire, Nicolette   +2 more
core   +2 more sources

A review of the impact of micro‐ and nanoplastics on female reproduction: What we know and gaps in knowledge

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Micro‐and nanoplastics (MNPs) are breakdown products of plastics, and humans are exposed to these particles through air, water, food, and soil. There is a growing concern that human exposure to MNPs negatively impacts health. In this review we will discuss the potential health impact of MNPs on ovarian function and the hypothalamic–pituitary ...
Sanchayana Raghuvir, Shawn Alex, Deborah Clegg   +2 more
wiley   +1 more source

Estrone and estradiol concentrations in human ovaries, testes, and adrenals during the first two years of life [PDF]

, 1987
To determine the origin of estrogens in infant blood, we measured estrone (E1) and estradiol (E2) in the gonads of 50 girls and 64 boys who died suddenly between birth and 2 yr of age as well as in the adrenals of 18 of these infant girls and 16 of the ...
Bidlingmaier, F., Dorr, H. G., Eisenmenger, Wolfgang, Knorr, D., Strom, T. M.   +4 more
core   +1 more source

Is pathological fetal Doppler cerebroplacental ratio (CPR) associated with adverse delivery outcomes in pregnancies complicated by fetal growth restriction undergoing labor induction? A retrospective cohort study

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective The optimal delivery approach for fetal growth restriction (FGR) with pathological cerebroplacental ratio (CPR) remains uncertain. This study evaluated the association between isolated pathological CPR (<5th percentile) and delivery outcomes, specifically the rate of cesarean delivery (CD) due to non‐reassuring fetal heart rate ...
Nofar Bar Noy‐Traub, Eden Friedman, Shaked Yarza, Eynit Grinblatt, Tal Biron‐Shental, Shmuel Arnon, Michal Kovo, Dorit Ravid, Sivan Farladansky‐Gershnabel   +8 more
wiley   +1 more source

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

, 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