Results 101 to 110 of about 21,939 (215)

Regulation of reproduction via tight control of gonadotropin hormone levels. [PDF]

open access: yes, 2018
Mammalian reproduction is controlled by the hypothalamic-pituitary-gonadal axis. GnRH from the hypothalamus regulates synthesis and secretion of gonadotropins, LH and FSH, which then control steroidogenesis and gametogenesis. In females, serum LH and FSH
Coss, Djurdjica
core   +1 more source

Contemporary and Historical Evidence to Suggest that Women’s Preference for Age at Birth of First Child Remains Consistent Across Time [PDF]

open access: yes, 2014
Women’s ability to reproduce is restricted by menarche and menopause. First children are, however, not typically born until some years after the onset of puberty. Other factors therefore contribute towards this delay. In this context, women’s hips do not
Brewer, Gayle   +3 more
core   +2 more sources

Oogenesis, Folliculogenesis, and Ovulation

open access: yes, 2022
Oocytes develop within distinct follicles in the cortex of the ovary during development. Prenatal follicles that have been dormant become active and go through progressive development at regular intervals starting in the late fetal period and continuing into maturity.
openaire   +1 more source

Dynamic Expression and Regulation of Urotensin I and Corticotropin-Releasing Hormone Receptors in Ovary of Olive Flounder Paralichthys olivaceus

open access: yesFrontiers in Physiology, 2019
Urotensin I (UI), a fish corticotropin-releasing hormone (CRH) like peptide, has been found throughout vertebrate species that has great effects on adaptive physiology comprising stress-related responses, and osmotic regulation by binding with CRH type I
Hong Zhou   +8 more
doaj   +1 more source

In utero exposure to cigarette smoke dysregulates human fetal ovarian developmental signalling [PDF]

open access: yes, 2014
STUDY QUESTION How does maternal cigarette smoking disturb development of the human fetal ovary?<p></p> SUMMARY ANSWER Maternal smoking increases fetal estrogen titres and dysregulates several developmental processes in the fetal ovary.<
A. J. Childs   +49 more
core   +3 more sources

Extracellular vesicles from endothelial progenitor cells promote thyroid follicle formation

open access: yesJournal of Extracellular Vesicles, 2018
Organogenesis is a complex and dynamic process requiring reciprocal communication between different cell types. In the thyroid, thyrocyte progenitors secrete the angiocrine factor, VEGFA, to recruit endothelial cells. In return, endothelial cells promote
Jonathan Degosserie   +9 more
doaj   +1 more source

Evaluation of the Cell Proliferation Process of Ovarian Follicles in Hypothyroid Rats by Proliferation Cell Nuclear Antigen Immunohistochemical Technique

open access: yesپزشکی بالینی ابن سینا, 2012
Introduction & Objective: The normal females reproductive function , needs hypothalamus-hypophysis-ovarian extensive hormonal messages. Primary hypothyroidism is characterized by reduced production and secretion of thyroid hormones.
Mahmood Moghadam Dorafshani   +3 more
doaj  

Development and application of a bioassay for follicle-stimulating hormone : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Physiology at Massey University [PDF]

open access: yes, 2000
Follicle-stimulating hormone (FSH) is involved in the regulation and maintenance of vital reproductive processes, such as gametogenesis, follicular development and ovulation.
Young, Wayne
core  

Exploration of the role of androgens and adipokines in the development of polycystic ovary syndrome

open access: yes, 2011
Polycystic ovary syndrome (PCOS) is the commonest endocrine disorder in women being characterized by reproductive and metabolic abnormalities. Our hypothesis is that overproduction of ovarian androgens during early development is a key factor in the ...
Comim, Fabio Vasconcellos   +1 more
core   +1 more source

Folliculogenesis and Abnormalities

open access: yesJournal of Gynecology Research Reviews & Reports
Research on oocytes and their associated follicles has advanced significantly over the past two decades, shedding light on the fragility of the processes governing their active life. The ovarian follicles and the germ cells within them are crucial to understand conception, growth, and survival mechanisms.
openaire   +1 more source

Home - About - Disclaimer - Privacy