Results 91 to 100 of about 147,586 (226)

Effect of different cryoprotectants on the structural preservation of follicles in frozen zebu bovine (Bos indicus) ovarian tissue [PDF]

, 2004
Cryopreservation of ovarian tissue is a new and promising technique for germ-line storage. The objective of this study was to evaluate the effect of four cryoprotectants (at two concentrations each) on the preservation of zebu bovine preantral follicles ...
Báo, Sônia Nair, Kacinskis, Mirella Ávila, Lopes, Luiz Henrique R, Lucci, Carolina Madeira, Rumpf, Rodolfo   +4 more
core   +1 more source

Inhibin A and B secretion in mouse preantral follicle culture [PDF]

Human Reproduction, 1998
Conditioned media from single mouse ovarian follicles cultured from the early preantral stage up to complete maturity were analysed for different immunoreactive inhibin forms. The inhibin assays measured (i) alpha-specific inhibin, as represented by a mix of 32 and and 57 kDa inhibins, inhibin precursors, alpha-subunit and its precursors; (ii) dimeric ...
Smitz, Johan, Cortvrindt, R.
openaire   +3 more sources

Cytomolecular and In Vitro Toxicity Studies on Bisphenol A Effect on Ovine Granulosa Cells

Veterinary Medicine International, Volume 2026, Issue 1, 2026.
Bisphenol A (BPA), an organic environment chemical, has extensive presence in consumer goods and food/feed items. The present study aimed to explore how BPA influenced the viability, proliferation, apoptosis, and steroidogenic activity of ovine ovarian granulosa cells (GCs).
Poonam Kumari Singh, Bogapathi Sampath Kumar, Sumanta Nandi, Paluru Subramniyam Parameswara Gupta, Sukanta Mondal, Imtiaz Rabbani   +5 more
wiley   +1 more source

Ovarian features in white-tailed deer (Odocoileus virginianus) fawns and does.

PLoS ONE, 2017
The knowledge about ovarian reserve is essential to determine the reproductive potential and to improve the methods of fertility control for overpopulated species, such as white-tailed deer (Odocoileus virginianus). The goal of this study was to evaluate
G D A Gastal, A Hamilton, B G Alves, S G S de Tarso, J M Feugang, W J Banz, G A Apgar, C K Nielsen, E L Gastal   +8 more
doaj   +1 more source

RFRP3 influences basal lamina degradation, cellular death, and progesterone secretion in cultured preantral ovarian follicles from the domestic cat. [PDF]

, 2019
The hypothalamic neuropeptide RFRP3 can suppress hypothalamic GnRH neuron activation and inhibit gonadotropin release from the anterior pituitary. RFRP3 is also produced locally in the ovary and can inhibit steroidogenesis and follicle development in ...
Bentley, George, Comizzoli, Pierre, Wilsterman, Kathryn   +2 more
core   +1 more source

Effect of Braun-Collins and Saline solutions at different temperatures and incubation times on the quality of goat preantral follicles preserved in situ [PDF]

, 2001
The present work has investigated the efficiency of Braun-Collins and Saline (0.9%) solutions in the conservation of goat preantral follicles in situ, at different temperatures and incubation times.
Andrade, Evelyn Rabelo, Báo, Sônia Nair, Carvalho, Fabíola Christian Almeida de, Figueiredo, José Ricardo, Lucci, Carolina Madeira, Silva, José Roberto Viana   +5 more
core   +1 more source

Isolation and characterization of preantral follicles from foetal bovine ovaries [PDF]

Veterinary Quarterly, 1994
A simple, mechanical method is described for the isolation of preantral follicles from bovine foetuses of 220-280 days of gestation. On average, 2918 + 621 (s.d.) preantral follicles were isolated per ovary. The isolated preantral follicles were characterized on the basis of the morphological appearance of the surrounding granulosa cells, the number of
Hulshof, S. C. J., Figueiredo, José Ricardo, Beckers, Jean-François, Bevers, M. M., Van den Hurk, R.   +4 more
openaire   +3 more sources

In Vitro Gamete Production in Mammals: Decades of Pioneering Approaches in Germ Cell and Stem Cell Biology Supporting Innovative Discovery and Expansion of Human Reproductive Potential

Molecular Reproduction and Development, Volume 92, Issue 12, December 2025.
ABSTRACT During recent decades a myriad of approaches have emerged for generating surrogate gametes or achieving in vitro gametogenesis (IVG). The most recent approaches to IVG include the development of increasingly complex culture systems, use of companion cells combined with germ line cells in two‐ or three‐dimensional configurations, derivation of ...
Keith E. Latham
wiley   +1 more source

Vitamin D3 Regulates Follicular Development and Intrafollicular Vitamin D Biosynthesis and Signaling in the Primate Ovary

Frontiers in Physiology, 2018
There is an increasing recognition that vitamin D plays important roles in female reproduction. Recent studies demonstrated that 1α,25-dihydroxyvitamin D3 (VD3), the biologically active form of vitamin D, improved ovarian follicle survival and growth in ...
Jing Xu, Jing Xu, Maralee S. Lawson, Fuhua Xu, Yongrui Du, Yongrui Du, Olena Y. Tkachenko, Cecily V. Bishop, Lucas Pejovic-Nezhat, David B. Seifer, Jon D. Hennebold, Jon D. Hennebold   +11 more
doaj   +1 more source

The Regulation of Apoptosis in Preantral Ovarian Follicles

Neurosignals, 2000
Less than 1% of ovarian follicles ever mature to ovulation. The remainder undergo atretic degeneration via apoptosis during development. Though the regulation of antral and preovulatory survival has been studied for many years, very little is known about the regulation of survival and development of preantral follicles.
openaire   +2 more sources