Results 171 to 180 of about 210,637 (269)
Abstract The hypothalamic–pituitary–gonadal (HPG) axis coordinates reproductive function and incorporates gonadal sex steroid feedback to regulate gonadotropin secretion in a homeostatic manner. In females, ovarian estrogens and progestins act as the primary negative feedback signals to suppress luteinizing hormone (LH) release, whereas in males ...
Lillian Rose, Alexander S. Kauffman
wiley +1 more source
Abstract Prolactinomas in the transition age present unique challenges; treatment strategies and long‐term outcomes in this population remain incompletely characterised. This is a multicentre, retrospective study of 110 consecutive patients (33 males) with prolactinomas, aged 15–25 years, across five Italian referral centres (2010–2025).
Dario De Alcubierre +17 more
wiley +1 more source
Comparable Euploidy and Aneuploidy Patterns Between Utrogestan-Based Progesterone-Primed Ovarian Stimulation and GnRH Antagonist in PGT-M: A Retrospective Matched Cohort Study. [PDF]
Li X +7 more
europepmc +1 more source
Abstract Kisspeptin neurons in the rostral hypothalamus are hypothesized to initiate preovulatory gonadotropin‐releasing hormone (GnRH) surges by causing estradiol‐dependent activation of GnRH neuron action potential firing and subsequent GnRH release.
J. Rudolph Starrett +4 more
wiley +1 more source
IVF Outcomes After PPOS Versus Flexible GnRH-Antagonist Protocol in Advanced-Age Women With Diminished Ovarian Reserve: A Retrospective Study. [PDF]
Zhang J +8 more
europepmc +1 more source
Sustained induction of PMOS‐like phenotype in mice exposed to letrozole in drinking water
Abstract Polyendocrine metabolic ovarian syndrome (PMOS; formerly polycystic ovary syndrome) is the most common endocrinopathy affecting women of reproductive age, characterized by ovarian dysfunction and hyperandrogenism, with metabolic disturbances including insulin resistance and obesity also present for 50% of PMOS patients.
Kennedy A. Stevenson +3 more
wiley +1 more source
Addition of Clomiphene Citrate to a Low-Dose Gonadotropin-Releasing Hormone (GnRH)-Antagonist Protocol in Poor Responders: A Prospective Cohort Study. [PDF]
Triantafyllidou O +13 more
europepmc +1 more source
Abstract Kenya's aquaculture sector is at a pivotal stage, transitioning from a historical reliance on Nile tilapia and African catfish toward a more diversified production portfolio that integrates indigenous and emerging freshwater and marine species. This shift is increasingly recognized as essential to enhance climate resilience, food security, and
Jonathan Munguti +9 more
wiley +1 more source
Sex-dependent endocrine and cellular effects of the GnRH antagonist degarelix in rabbits and cell models. [PDF]
Zhao M +11 more
europepmc +1 more source
Abstract Homeostasis is often taught as steady‐state regulation keeping internal variables within narrow limits—reflecting a mammalian bias. Yet, canonical homeostasis is far from universal. In many animals, including humans, normal physiological states allow some variables to fluctuate cyclically or stochastically while others remain tightly ...
Warren Burggren, Tobis Wang
wiley +1 more source

