Results 91 to 100 of about 4,666 (217)

The direct effect of SARS-CoV-2 virus vaccination on human ovarian granulosa cells explains menstrual irregularities

open access: yesnpj Vaccines
Following administration of the SARS-CoV-2 vaccine, many women worldwide reported short-term menstrual irregularities. Although menstrual bleeding, “the fifth vital sign”, is experienced by more than 300 million people on any given day worldwide, these ...
Hadas Bar-Joseph   +9 more
doaj   +1 more source

Kisspeptin as a test of hypothalamic dysfunction in pubertal and reproductive disorders

open access: yesAndrology, Volume 14, Issue 4, Page 1002-1016, May 2026.
Abstract The hypothalamic–pituitary–gonadal axis is regulated by the gonadotropin‐releasing hormone pulse generator in the hypothalamus. This is comprised of neurons that secrete kisspeptin in a pulsatile manner to stimulate the release of GnRH, and, in turn, downstream gonadotropins from the pituitary gland, and subsequently sex steroids and ...
Aureliane C. S. Pierret   +5 more
wiley   +1 more source

Molecular Mechanisms of Dysregulated LH and FSH Secretion in Human Reproductive Failure

open access: yesBiomedicines
Several reproductive issues in both men and women are caused by changes in the pulsatile secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH).
Athanasios Zikopoulos   +9 more
doaj   +1 more source

Pharmacogenetics of follicle‐stimulating hormone action in the male

open access: yesAndrology, Volume 14, Issue 4, Page 1064-1072, May 2026.
Abstract Male factor infertility (MFI) is involved in half of the cases of couple infertility. The follicle‐stimulating hormone (FSH) therapy is considered efficient to improve semen parameters and pregnancy rate in patients with idiopathic MFI, following the lesson learned from hypogonadotropic hypogonadism.
Andrea Graziani   +7 more
wiley   +1 more source

The Maternal Maverick/GDF15-like TGF-β Ligand Panda Directs Dorsal-Ventral Axis Formation by Restricting Nodal Expression in the Sea Urchin Embryo.

open access: yesPLoS Biology, 2015
Specification of the dorsal-ventral axis in the highly regulative sea urchin embryo critically relies on the zygotic expression of nodal, but whether maternal factors provide the initial spatial cue to orient this axis is not known.
Emmanuel Haillot   +3 more
doaj   +1 more source

Male and Female Inhibin [PDF]

open access: yesArchives of Andrology, 1980
The testis and ovary secrete a nonsteroidal hormone that selectively inhibits pituitary FSH secretion. Inhibin, a polypeptide hormone produced by Sertoli cells in the seminiferous tubules and by the granulosa cells of the ovarian follicle, is isolated from seminal fluid, rete testis fluid testicular and ovarian extracts, and follicular fluid. There may
openaire   +2 more sources

Role of Myeloid-Derived Suppressor Cells in tumor-associated pregnancy [PDF]

open access: yes, 2012
Cancer progression is dependent, in part, on interactions between tumor cells and the host microenvironment. During pregnancy, physiological changes occur that include inflammation and reduced immunity, both of which can promote tumor growth. Accordingly,
Waeber, S.
core  

What is the best way to diagnose menopause? [PDF]

open access: yes, 2005
No single test for menopause is highly sensitive and specific. The best predictors that a woman will enter menopause within 4 years include age at least 50 years, amenorrhea for 3 to 11 months, and menstrual cycle irregularity within 12 months (strength ...
Haigler, Lori   +2 more
core  

Molecular Targets of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) within the Zebrafish Ovary: Insights into TCDD-induced Endocrine Disruption and Reproductive Toxicity [PDF]

open access: yes, 2008
TCDD is a reproductive toxicant and endocrine disruptor, yet the mechanisms by which it causes these reproductive alterations are not fully understood.
Carvan, Michael J., III   +5 more
core   +1 more source

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