Results 1 to 10 of about 24,396 (278)

Intratesticular signals regulate germ cell progression and production of qualitatively mature spermatozoa in vertebrates [PDF]

open access: yesFrontiers in Endocrinology, 2014
Spermatogenesis, a highly conserved process in vertebrates, is mainly under the hypothalamic-pituitary control, being regulated by the secretion of pituitary gonadotropins, FSH and LH, in response to stimulation exerted by Gonadotropin Releasing Hormone (
Rosaria eMeccariello   +6 more
doaj   +2 more sources

Evaluation of Neuroendocrine Dysfunction Following Acute Aneurysmal Subarachnoid Hemorrhage [PDF]

open access: yesIranian Journal of Neurosurgery, 2023
Background and Aim: In the management of aneurysmal subarachnoid hemorrhage (aSAH), endocrine dysfunction is infrequently considered. Pituitary (neuroendocrine) dysfunction is highly prevalent after aSAH, leading to residual symptoms such as decreased ...
Harikrishnan Sreenivasan   +4 more
doaj   +1 more source

Restoration of dioxin-induced damage to fetal steroidogenesis and gonadotropin formation by maternal co-treatment with α-lipoic acid. [PDF]

open access: yesPLoS ONE, 2012
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD), an endocrine disruptor, causes reproductive and developmental toxic effects in pups following maternal exposure in a number of animal models.
Takayuki Koga   +9 more
doaj   +1 more source

The Influence of Anandamide on the Anterior Pituitary Hormone Secretion in Ewes—Ex Vivo Study

open access: yesAnimals, 2020
Cannabinoids (CBs) are involved in the neuroendocrine control of reproductive processes by affecting GnRH and gonadotropins secretion. The presence of cannabinoid receptors (CBR) in the pituitary raises a presumption that anandamide (AEA), the endogenous
Dorota Tomaszewska-Zaremba   +6 more
doaj   +1 more source

Estropause, Sex Hormones and Metal Homeostasis in the Mouse Brain

open access: yesFrontiers in Neurology, 2022
Alterations in brain metal ion homeostasis have been reported with aging and are implicated in the pathogenesis of neurodegenerative diseases. To assess whether age-related changes in hypothalamic-pituitary-gonadal (HPG) hormones might be involved in ...
Tianbing Liu   +8 more
doaj   +1 more source

Comparative effects of coconut water and N-Acetyl cysteine on the hypothalamo-pituitary-gonadal axis of male rats [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2017
Coconut water (CW) contains cysteine, an amino acid which influences glutathione metabolism and promotes reproductive functions. The effects of CW and N-acetyl cysteine (NAC) were compared on the hypothalamo-pituitary-gonadal-axis of danazol-(a GnRH ...
Olufadekemi Tolulope Kunle-Alabi   +4 more
doaj   +1 more source

Is the infertility in hypothyroidism mainly due to ovarian or pituitary functional changes?

open access: yesBrazilian Journal of Medical and Biological Research, 2001
The objective of the present study was to examine whether hypothyroidism affects the reproductive system of adult female rats by evaluating ovarian morphology, uterus weight and the changes in serum and pituitary concentrations of prolactin and ...
L. Armada-Dias   +4 more
doaj   +3 more sources

Evaluation of different hormone inducers on the reproduction of Prochilodus brevis males

open access: yesRevista Ciência Agronômica, 2023
The use of carp pituitary extract (CPE) in fish reproduction may have drawbacks, whereas analogues of mammalian (aGnRHm) or salmon (aGnRHs) gonadotropins containing dopamine inhibitor (DI) may offer greater advantages.
Carla Tatiana Nascimento Sousa Vieira   +7 more
doaj   +1 more source

Testicular “Hyperstimulation” Syndrome: A Case of Functional Gonadotropinoma

open access: yesCase Reports in Endocrinology, 2014
Gonadotropins secreting pituitary tumors tend to present as sellar mass with hypogonadism. Biologically active LH secretion by these tumors resulting in elevated testosterone is extremely rare. We report a case of a 48-year-old male patient who presented
Astha Thakkar   +5 more
doaj   +1 more source

The Development of Gonadotropins for Clinical Use in the Treatment of Infertility

open access: yesFrontiers in Endocrinology, 2019
The first commercially available gonadotropin product was a human chorionic gonadotropin (hCG) extract, followed by animal pituitary gonadotropin extracts.
Bruno Lunenfeld   +8 more
doaj   +1 more source

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