Results 91 to 100 of about 73,970 (344)

Pulsatile gonadotropin-releasing hormone: clinical applications of a physiologic paradigmEssential Points

open access: yesF&S Reports, 2023
Gonadotropin-releasing hormone (GnRH) is a fundamental driver of human reproduction. A pulsatile pattern of GnRH secretion is essential to achieve pituitary stimulation, gonadotropin secretion, and normal gonadal function.
Marco Filicori, M.D.
doaj  

The adenylate cyclase receptor complex and aqueous humor formation. [PDF]

open access: yes, 1984
The secretory tissue of the eye, the ciliary processes, contains an enzyme receptor complex, composed of membrane proteins, the catalytic moiety of the enzyme adenylate cyclase, a guanyl nucleotide regulatory protein (or N protein), and other features ...
Caprioli, J, Sears, M
core   +1 more source

Interspecific comparisons of anuran embryonic epidermal landscapes and energetic trade‐offs in response to changes in salinity

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Freshwater salinization is an emerging stressor in amphibian populations, and embryonic stages are most vulnerable. To better understand the variation in embryonic osmoregulation, we challenged embryos of two phylogenetically diverse anuran species, Xenopus laevis and Lithobates (Rana) sylvaticus, along a gradient of non‐lethal ...
Kourtnie Whitfield, Erica J. Crespi
wiley   +1 more source

Polycystic Ovary Syndrome: pathogenesis, management, and treatment with metals and organic compounds [PDF]

open access: yesCellular, Molecular and Biomedical Reports
Polycystic ovary syndrome (PCOS) is a popular illness in women after puberty age. It’s described via overdone androgen production, and ovulation unrest while elevating metabolic syndrome.
Tamara Abd Al-Kareem   +2 more
doaj   +1 more source

Effect of oxytocin on free intracellular Ca2+ levels and progesterone release by human granulosa-lutein cells [PDF]

open access: yes, 1993
Oxytocin and its receptor are found in the corpus luteum in a variety of species, including the human. In the present study we used fura-2 microfluorimetry to investigate whether activation of the oxytocin receptor of cultured human granulosa-lutein ...
Gratzl, Manfred   +4 more
core   +1 more source

Shared Lineage, Distinct Outcomes: Yap and Taz Loss Differentially Impact Schwann and Olfactory Ensheathing Cell Development Without Disrupting GnRH‐1 Migration

open access: yesGlia, EarlyView.
OECs, SCs, and Mel derive from SCPs. Sox10Cre;YapHet;TazKO mice show impaired SC maturation, reduced Mel formation, fewer SCPs, OECs, and olfactory neurons, but normal GnRH‐1 neuron migration. ABSTRACT Olfactory Ensheathing Cells (OECs) are glial cells originating from the neural crest and are critical for bundling olfactory axons to the brain.
Ed Zandro M. Taroc   +7 more
wiley   +1 more source

Contribution of recent transgenic models and transcriptional profiling studies to our understanding of the mechanisms by which androgens control spermatogenesis [PDF]

open access: yes, 2008
Publisher ...
Claessens, Frank   +7 more
core   +1 more source

Cost-effectiveness of short COH protocols with GnRH antagonists using different types of gonadotropins for in vitro fertilization

open access: yesBiotechnology & Biotechnological Equipment, 2016
The aim of this study was to explore the cost-effectiveness of short protocols including different types of gonadotropins for controlled ovarian hyperstimulation (COH) for in vitro fertilization (IVF).
Guenka Petrova   +5 more
doaj   +1 more source

The use of recombinant FSH in combination therapy in a young male with idiopathic hypogonadotropic hypogonadism

open access: yesМедицинский совет, 2018
Currently, testosterone drugs are used to treat hypogonadotropic hypogonadism, which allow men to get a good height and reach a stage of sexual development corresponding to their age.
Yu. L. Skorodok   +3 more
doaj   +1 more source

The mitochondrial DNA copy number and ovary‐related reproductive disorders: A bidirectional two‐sample Mendelian randomization study

open access: yesInternational Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 112-120, April 2025.
Abstract Objective In the present study, a bidirectional two‐sample Mendelian randomization approach was utilized to explore potential causal relationships between mitochondrial DNA copy number (mtDNA‐CN) and ovary‐related reproductive disorders (ORRDs), including ovarian dysfunction, ovarian cyst, polycystic ovary syndrome (PCOS), premature ovarian ...
Ke Peng   +4 more
wiley   +1 more source

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