Results 31 to 40 of about 311,390 (296)

Follicle-stimulating hormone mediates the consumption of serum-derived glycogen by bovine cumulus-oocyte complexes during in vitro maturation [PDF]

open access: yesVeterinary World, 2021
Background and Aim: Oocyte in vitro maturation (IVM) is an appealing approach for several assisted reproductive technologies and dissecting oocyte maturation. Nonetheless, IVM leads to lower developmental competence and usually relies on undefined, serum-
Ludymila F. Cantanhêde   +8 more
doaj   +1 more source

Does Islamic Fasting Affect Gonadotropin around Female Ovulation? [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2010
Background The pattern of Islamic fasting differs from other forms of fasting, therefore its effect on health also differs. This research studies the effect of Islamic fasting on gonadotropin hormones around the time of the ovulatory cycle and ovulation.
Sima Shahabi   +5 more
doaj   +1 more source

New Twists in Ovarian Stimulation and Their Practical Implications

open access: yesFrontiers in Medicine, 2019
Ovarian stimulation (OS) has for objective to induce multiple ovulation in order to yield a multiple oocyte harvest and offer multiple embryos available for transfer thereby increasing the efficacy of ART.
Paul Pirtea   +3 more
doaj   +1 more source

Peripheral and central mechanisms involved in hormonal control of male and female reproduction [PDF]

open access: yes, 2016
Reproduction involves the integration of hormonal signals acting across multiple systems togenerate a synchronized physiological output. A critical component of reproduction is the luteinizinghormone (LH) surge, which is mediated by estradiol (E2) and ...
Bentley, G. E.   +6 more
core   +1 more source

Keterlambatan Pubertas

open access: yesSari Pediatri, 2016
Keterlambatan pubertas merupakan masalah penting pada anak karena dapat terjadi keterlambatan pertumbuhan dan maturasi tulang. Diagnosis keterlambatan pubertas ditegakkan berdasarkan anamnesis, pemeriksaan fisik, laboratorium dan radiologi.
Syamsul Azwar
doaj   +1 more source

NUCB2/nesfatin-1 suppresses the acrosome reaction in sperm within the mouse epididymis

open access: yesAnimal Cells and Systems, 2023
Nesfatin-1, a polypeptide hormone derived from the nucleobindin 2 (NUCB2) precursor protein, is known to regulate appetite and energy metabolism. Recent studies have also shown that NUCB2/nesfatin-1 is expressed in the reproductive organs of mice ...
Soohyun Kim   +5 more
doaj   +1 more source

The Novel Competing Endogenous Long Noncoding RNA SM2 Regulates Gonadotropin Secretion in the Hu Sheep Anterior Pituitary by Targeting the Oar-miR-16b/TGF-β/SMAD2 Signaling Pathway

open access: yesCells, 2022
Pituitary gonadotropins play a pivotal role in reproduction. Long noncoding RNAs (lncRNAs) have been identified as important regulators in the hypothalamic–pituitary–ovarian (HPO) axis associated with reproduction.
Zhen Wan   +7 more
doaj   +1 more source

The Gonadotropin-Releasing Hormone Pulse Generator.

open access: yesEndocrinology, 2018
The pulsatile release of GnRH and LH secretion is essential for fertility in all mammals. Pulses of LH occur approximately every hour in follicular-phase females and every 2 to 3 hours in luteal-phase females and males.
A. Herbison
semanticscholar   +1 more source

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

open access: yes, 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   +2 more
core   +2 more sources

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

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