Results 41 to 50 of about 155,820 (386)

Duplicated membrane estrogen receptors in the European sea bass (Dicentrarchus labrax): Phylogeny, expression and regulation throughout the reproductive cycle [PDF]

open access: yes, 2018
The numerous estrogen functions reported across vertebrates have been classically explained by their binding to specific transcription factors, the nuclear estrogen receptors (ERs).
Alvarado, M. Victoria   +5 more
core   +1 more source

Species-specific differences in follicular antral sizes result from diffusion-based limitations on the thickness of the granulosa cell layer

open access: yes, 2013
The size of mature oocytes is similar across mammalian species, yet the size of ovarian follicles increases with species size, with some ovarian follicles reaching diameters more than 1000-fold the size of the enclosed oocyte.
Bächler, M.   +3 more
core   +1 more source

Human steroidogenesis: implications for controlled ovarian stimulation with exogenous gonadotropins

open access: yesReproductive Biology and Endocrinology, 2014
In the menstrual cycle, the mid-cycle surge of gonadotropins (both luteinising hormone [LH] and follicle-stimulating hormone [FSH]) signals the initiation of the periovulatory interval, during which the follicle augments progesterone production and ...
C. Andersen, D. Ezcurra
semanticscholar   +1 more source

Oocyte maturation in the toad Rhinella arenarum (Amphibia, Anura): Evidence of cAMP involvement in steroid production and action [PDF]

open access: yes, 2018
In this work, we describe the participation of the adenylate cyclase/3′-5′-cyclic adenonsine monophosphate (cAMP) pathway in the seasonal follicular secretion of progesterone (P 4 ) and testosterone (T), and its relationship with the maturation of ...
Arias Torres   +48 more
core   +1 more source

Metformin and gonadotropins for ovulation induction in patients with polycystic ovary syndrome: a systematic review with meta-analysis of randomized controlled trials

open access: yesReproductive Biology and Endocrinology, 2014
The current systematic review with meta-analysis of randomized controlled trials (RCTs) was aimed to evaluate the effects of metformin on reproductive outcomes in patients with polycystic ovary syndrome (PCOS) who receive gonadotropins for ovulation ...
S. Palomba, A. Falbo, G. L. La Sala
semanticscholar   +1 more source

TMC4 localizes to multiple taste cell types in the mouse taste papillae

open access: yesFEBS Open Bio, EarlyView.
Transmembrane channel‐like 4 (TMC4), a voltage‐dependent chloride channel, plays a critical role in amiloride‐insensitive salty taste transduction. TMC4 is broadly expressed in all mature taste cell types, suggesting a possible involvement of multiple cell types in this pathway.
Momo Murata   +6 more
wiley   +1 more source

Laying performance, genetic parameters, and the expression of FSHβ, LHβ, FSHR, and LHR genes in Japanese quails selected for early egg production

open access: yesPoultry Science
: Investigating the impact of early egg production selection (the first 90 d of laying) on egg production features, cumulative selection response (CSR), and the mRNA expression of gonadotropins (FSHβ and LHβ), and their receptors (FSHR and LHR), in ...
Eman A. Manaa   +7 more
doaj   +1 more source

Hormone Receptor Site Maturation in the Secondary Sex Organs of Immature Male and Female Rats [PDF]

open access: yes, 1976
The effect of a combined dose of pregnant mares\u27 serum (PAAS) and human chor ionic gonadotropin (HCG) on male and female rats 2-25 days old was studied. Groups of animals were given injections for three days, then sacrificed on the fourth day.
Thomas, K. J.
core   +2 more sources

Gonadotrope-specific Deletion of Dicer Results in Severely Suppressed Gonadotropins and Fertility Defects*

open access: yesJournal of Biological Chemistry, 2014
Background: DICER mediates microRNA production, and its functional role in gonadotropes is not known. Results: Deletion of Dicer in gonadotropes leads to suppression of gonadotropin synthesis and secretion and results in fertility defects.
Huizhen Wang   +7 more
semanticscholar   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

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