Results 31 to 40 of about 8,556 (220)

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

Microencapsulation and nanowarming enables vitrification cryopreservation of mouse preantral follicles

Nature Communications, 2022
Vitrification of preantral follicles is a promising strategy for female fertility preservation, but requires high concentrations of toxic cryoprotectants. Here, the authors accomplish follicle vitrification with low cryoprotectants by taking advantage of
Conghui Tian, Lingxiao Shen, Chenjia Gong, Yunxia Cao, Qinghua Shi, Gang Zhao   +5 more
doaj   +1 more source

Study of preantral follicle population in situ and after mechanical isolation from caprine ovaries at different reproductive stages [PDF]

, 1999
The purposes of this study were to estimate the population of caprine preantral follicles, and to evaluate quantitatively and qualitatively the efficiency of a specific mechanical method for the isolation of preantral follicles from mixed breed goats at ...
Amorim, Christiani Andrade, Báo, Sônia Nair, Figueiredo, José Ricardo, Gonçalves, Paulo Bayard Dias, Lucci, Carolina Madeira, Rodrigues, Ana Paula Ribeiro, Silva, José Roberto Viana da   +6 more
core   +1 more source

Cryopreservation of Preantral Follicles

, 2018
In mammals, the total number of female germ cells is already established by the time of birth, meaning that no mitosis will take place in oogonias thereafter. Their cryostorage, therefore, depends on ovarian tissue manipulation. As an alternative to mature oocyte cryopreservation, the maintenance of inactive preantral follicles is a remarkable option ...
Rivas Leonel, Ellen Cristina, Lucci, Carolina Madeira, Andrade Amorim, Christiani   +2 more
openaire   +4 more sources

Primordial follicular assembly in humans : revisited [PDF]

, 2009
Peer ...
A. Maheshwari, Baker, Donovan, Gumienny, Konishi, P. A. Fowler, Pinkerton, Satoh, Vaskivuo   +8 more
core   +1 more source

Progesterona e hormônio folículo-estimulante interagem e promovem a sobrevivência e o desenvolvimento in vitro de folículos pré-antrais caprinos [PDF]

, 2012
Este trabalho veri_icou os efeitos da progesterona e do hormonio foliculo-estimulante (FSH) na sobrevivencia e no crescimento de foliculos pre-antrais caprinos. Fragmentos de tecido ovariano foram cultivados por 1 ou 7 dias em Meio Essencial Minimo (MEM)
Báo, Sônia Nair, Campello, Claudio Cabral, Celestino, Juliana Jales de Hollanda, Figueiredo, José Ricardo de, Lima-Verde, Isabel Bezerra, Matos, Maria Helena Tavares de, Name, Khesller Patrícia Olázia, Rossetto, Rafael   +7 more
core   +1 more source

Methods for Equine Preantral Follicles Isolation: Quantitative Aspects

Reproduction in Domestic Animals, 2013
ContentsThe aim of this study was to test the use of mechanical and mechanical‐enzymatic methods, saline solution (SS), and PBS solution for the manipulation and isolation of mare ovarian preantral follicles (PAFs). The ovaries were subjected to mechanical isolation (mixer) alone or in association with enzymatic digestion (collagenase).
Rivas Leonel, Ellen, Bento‐Silva, V, Ambrozio, KS, Luna, HS, Costa e Silva, EV, Zúccari, CESN   +5 more
openaire   +3 more sources

Activin promotes oocyte development in ovine preantral follicles in vitro

Reproductive Biology and Endocrinology, 2003
Activins have been implicated as important regulating factors for many reproductive processes. The aim of this study was to determine the effect of activin A on the development of ovine preantral follicles in vitro.
Telfer Evelyn E, Armstrong David G, Thomas Fiona H   +2 more
doaj   +1 more source

Effects of sodium alginate capsules as 3D scaffolds on hormones and genes expression in preantral follicles of mice compared to 2D medium: An experimental study

International Journal of Reproductive BioMedicine, 2020
Background: The improvement of in vitro maturation methods, which can activate the preantral follicle growth, plays a crucial role in the production of mature oocytes in reproductive technology.
Cyrus Jalili, Fuzieh Khani Hemmatabadi, Kamran Mansouri, Mehrdad Bakhtiyari   +3 more
doaj   +1 more source

C-type natriuretic peptide enhances mouse preantral follicle growth [PDF]

Reproduction, 2019
Compared to ovarian antral follicle development, the mechanism underlying preantral follicle growth has not been well documented. Although C-type natriuretic peptide (CNP) involvement in preantral folliculogenesis has been explored, its detailed role has not been fully defined.
Guangyin, Xi, Wenjing, Wang, Sarfaraz A, Fazlani, Fusheng, Yao, Mingyao, Yang, Jing, Hao, Lei, An, Jianhui, Tian   +7 more
openaire   +2 more sources