Results 71 to 80 of about 8,556 (220)

Zinc Deficiency Disrupts Germ Cell Nest Breakdown During In Vitro Ovary Culture

open access: yesMolecular Reproduction and Development, Volume 93, Issue 2, February 2026.
ABSTRACT In mammals, the size of the non‐renewable primordial follicle pool is established before or soon after birth. Primordial follicles, each composed of a single oocyte surrounded by somatic cells, are the only source of gametes during the entire reproductive lifespan of the female.
James M. Hester   +3 more
wiley   +1 more source

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

open access: yes, 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   +4 more
core   +1 more source

Bioengineering Supports Preantral Follicle In Vitro Growth

open access: yesAnimal Research and Veterinary Science, 2022
ecent advances using bioengineering methods (e.g. biomaterials, 3D-printing, microfluidics tec.) has opened the possibility to study female reproductive system and reproductive diseases in a totally new way and with unpredictable ...
openaire   +1 more source

The Role of Anethole in Reproductive Physiology and In Vitro Biotechnologies—A Review

open access: yesReproduction in Domestic Animals, Volume 61, Issue 1, January 2026.
ABSTRACT In vitro reproductive biotechnologies show promise for fertility preservation but still face challenges, including oxidative stress from high oxygen tension, which impairs cell viability and development. Antioxidants have been widely explored to attenuate oxidative stress during culture.
André Luiz da Conceição‐Santos   +1 more
wiley   +1 more source

Immunolocalization for glucocorticoid receptor and effect of cortisol on in vitro development of preantral follicles

open access: yesVeterinary and Animal Science, 2019
The aim of this study was to evaluate the immunolocalization for glucocorticoid receptor (NR3C1) in goat ovarian follicles and the effect of cortisol on in vitro development of preantral follicles.
Julian T. Pontes   +7 more
doaj   +1 more source

Preservation of bovine preantral follicle viability and ultra-structure after cooling and freezing of ovarian tissue [PDF]

open access: yes, 2008
Bovine preantral follicles within ovarian fragments were exposed and cryopreserved in absence or presence of 1.5 M glycerol (GLY), ethylene glycol (EG), propanediol (PROH) or dimethyl sulfoxide (DMSO), undergoing a previous cooling at 20 °C for 1 h ...
Báo, Sônia Nair   +9 more
core   +1 more source

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

open access: yesHuman 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

open access: yesVeterinary 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   +5 more
wiley   +1 more source

Morphological Study of Isolated Ovarian Preantral Follicles Using Fibrin Gel Plus Platelet Lysate after Subcutaneous Transplantation [PDF]

open access: yesCell Journal, 2015
Objective: Ovarian and follicle transplantation may preserve fertility in young cancer survivors. In this study, we have transplanted preantral follicles using fibrin gel as a carrier and fibrin gel supplemented with platelet lysate (PL) as a rich ...
Ali Reza Rajabzadeh   +4 more
doaj  

Follicular Atresia, Cell Proliferation, and Anti-Mullerian Hormone in Two Neotropical Primates (Aotus nancymae and Sapajus macrocephalus)

open access: yesAnimals, 2023
This study evaluated the follicular atresia, cell proliferation, and anti-Mullerian hormone action in Aotus nancymae and Sapajus macrocephalus during three sexual phases (follicular, luteal, and gestational).
Deise de Lima Cardoso   +5 more
doaj   +1 more source

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