Results 31 to 40 of about 42,461 (288)

Estrogenic Regulation of the GnRH Neuron

open access: yesFrontiers in Endocrinology, 2012
Reproductive function is regulated by the secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from the pituitary and the steroid hormones from the gonads.
Sally eRadovick
doaj   +1 more source

Thyroid and male reproduction

open access: yesIndian Journal of Endocrinology and Metabolism, 2014
Male reproduction is governed by the classical hypothalamo-hypophyseal testicular axis: Hypothalamic gonadotropin releasing hormone (GnRH), pituitary luteinizing hormone (LH) and follicle stimulating hormone (FSH) and the gonadal steroid, principally ...
Anand Kumar   +2 more
doaj   +1 more source

Toxic Metal Concentrations in Drinking Water and Possible Effect on Sex Hormones among Men in Sabongida-Ora, Edo State, Nigeria

open access: yesMedicines, 2022
Drinking water can be a potential source of toxic metals, which are a known leading cause of infertility in men. This study determines the concentrations of lead (Pb), cadmium (Cd), zinc (Zn), copper (Cu) in drinking water (borehole, hand-dug well and ...
Osaro Ogie Enehizena, Mathias A. Emokpae
doaj   +1 more source

Gonadotropins in the Russian Sturgeon: Their Role in Steroid Secretion and the Effect of Hormonal Treatment on Their Secretion. [PDF]

open access: yes, 2016
In the reproduction process of male and female fish, pituitary derived gonadotropins (GTHs) play a key role. To be able to specifically investigate certain functions of Luteinizing (LH) and Follicle stimulating hormone (FSH) in Russian sturgeon ...
Aizen, Joseph   +8 more
core   +3 more sources

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

Ligula intestinalis (Cestoda: Pseudophyllidea): an ideal fish-metazoan parasite model? [PDF]

open access: yes, 2010
Since its use as a model to study metazoan parasite culture and in vitro development, the plerocercoid of the tapeworm, Ligula intestinalis, has served as a useful scientific tool to study a range of biological factors, particularly within its fish ...
Carter, V, Dufour, S, Hoole, D
core   +1 more source

Gonadotropin and kisspeptin gene expression, but not GnRH, are impaired in cFOS deficient mice. [PDF]

open access: yes, 2015
cFOS is a pleiotropic transcription factor, which binds to the AP1 site in the promoter of target genes. In the pituitary gonadotropes, cFOS mediates induction of FSHβ and GnRH receptor genes.
Coss, Djurdjica   +3 more
core   +1 more source

Action of the Metalloproteinases in Gonadal Remodeling during Sex Reversal in the Sequential Hermaphroditism of the Teleostei Fish Synbranchus marmoratus (Synbranchiformes: Synbranchidae) [PDF]

open access: yes, 2018
Teleostei present great plasticity regarding sex change. During sex reversal, the whole gonadincluding the germinal epithelium undergoes significant changes, remodeling, and neoformation.However, there is no information on the changes that occur within ...
Antoneli, Fernanda   +3 more
core   +2 more sources

Effect of gonadal steroid hormones on formalin‐induced temporomandibular joint inflammation [PDF]

open access: yesEuropean Journal of Pain, 2012
AbstractWe have recently demonstrated that gonadal steroid hormones decrease formalin‐induced temporomandibular joint nociception in rats. Given that the attenuation of inflammation is a potential mechanism underlying this antinociceptive effect, we evaluated the effect of gonadal steroid hormones on formalin‐induced temporomandibular joint ...
K E, Torres-Chávez   +6 more
openaire   +2 more sources

Sexual differentiation of the rodent brain: dogma and beyond

open access: yesFrontiers in Neuroscience, 2012
Steroid hormones of gonadal origin act on the neonatal brain to produce sex differences that underlie adult reproductive physiology and behavior. Neuronal sex differences occur on a variety of levels, including differences in regional volume and/or cell
Kathryn M. Lenz   +2 more
doaj   +1 more source

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