Results 41 to 50 of about 108,095 (254)
A small population of hypothalamic neurons govern fertility: the critical role of VAX1 in GnRH neuron development and fertility maintenance. [PDF]
, 2016 Fertility depends on the correct maturation and function of approximately 800 gonadotropin-releasing hormone (GnRH) neurons in the brain. GnRH neurons are at the apex of the hypothalamic-pituitary-gonadal axis that regulates fertility. In adulthood, GnRH
Hoffmann, Hanne M, Mellon, Pamela L
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Cu-GnRH – new gonadoliberin (GnRH) analog
Postępy Higieny i Medycyny Doświadczalnej, 2013 Our research was concentrated about physiological and structural aspects of metal complexes with GnRH, which were synthetized by Professor Henryk Kozłowski from the Uniwersity of Wrocław. We found that copper, nickel, zinc and cobalt complexes with GnRH stimulated the release of LH and FSH both in vivo and in vitro.
openaire +2 more sources
Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization
Advanced Science, EarlyView.This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin +11 more
wiley +1 more source
Biology, 2019 The regulation of reproductive function by glucocorticoids occurs at all levels of the hypothalamo-pituitary-gonadal axis. Within the pituitary, glucocorticoids have been shown to directly alter gene expression in gonadotrophs, indicating that these cell
Anthony E. Michael +2 more
doaj +1 more source
Advanced Science, EarlyView.We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim +6 more
wiley +1 more source
Czech Journal of Animal Science, 2011 In several studies, hormones such as gonadotropin-releasing hormone (GnRH), prostaglandins and oxytocin were used to increase pregnancy rate by inducing ovulation and improving the sperm transport in the female reproductive tract in lactating dairy ...
A. Gümen +5 more
doaj +1 more source
Leukemia Inhibitory Factor Represses GnRH Gene Expression via cFOS during Inflammation in Male Mice. [PDF]
, 2019 BackgroundThe mechanisms whereby neuroinflammation negatively affects neuronal function in the hypothalamus are not clear. Our previous study determined that obesity-mediated chronic inflammation elicits sex-specific impairment in reproductive function ...
Coss, Djurdjica, Lainez, Nancy M
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Timing of maternal exposure and fetal sex determine the effects of low-level chemical mixture exposure on the fetal neuroendocrine system in sheep [PDF]
, 2016 We have shown that continuous maternal exposure to the complex mixture of environmental chemicals (ECs) found in human biosolids (sewage sludge), disrupts mRNA expression of genes crucial for development and long-term regulation of hypothalamo-pituitary ...
Bellingham, M. +7 more
core +2 more sources
Advanced Science, EarlyView.PA accumulates after hypoxic‐ischemic injury and stabilizes the E3 ligase TRIM59 in OPCs. Stabilized TRIM59 enhances ubiquitination and degradation of Olig2, blocking differentiation and causing hypomyelination in PWMI. Modulating PA synthesis restores Olig2 levels, improves myelination, and ameliorates behavioral deficits, defining a metabolically ...
Xinyu Li +8 more
wiley +1 more source
Treatment of ovarian cysts in sows - a field trial
Veterinární Medicína, 2007 Different procedures of treatment of large follicular ovarian cysts in 177 sows using GnRH, hCG and PGF2α are evaluated in this study. Ovarian cysts were diagnosed by transcutaneous ultrasonography, which was a part of routine pregnancy diagnosis.
S. Cech, R. Dolezel
doaj +1 more source