Results 31 to 40 of about 9,462 (214)

Stepped vitrification technique for human ovarian tissue cryopreservation [PDF]

, 2019
The advantage of stepped vitrification (SV) is avoiding ice crystal nucleation, while decreasing the toxic effects of high cryoprotectant concentrations. We aimed to test this method for human ovarian tissue cryopreservation.
Amorin, C.A., Camboni, A., Corral, A., Dolmans, M.M., Kilbride, P., Leonel, E.C.R., Morris, John G., Risco, Ramón, Taboga, S.R., Vázquez, Marina   +9 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

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

Cryopreservation and characterization of canine preantral follicles

Cryobiology, 2018
The aim of this study was to define the population, morphological and ultrastructural characteristics of bitch preantral follicles (PAFs) and to compare the effects on the morphology of PAF of two cryopreservation techniques - slow freezing (SF) and vitrification (V) - of bitches' ovarian tissue. The average population (number per ovary) of PAFs was 48,
J.L.P.R. Jivago, F. Paulini, R.C. Silva, M.S. Araujo, A.P.S. Marinho, C.M. Lucci   +5 more
openaire   +2 more sources

In vitro development of pig preantral follicles [PDF]

Bioscientifica Proceedings, 2020
A limiting factor to realizing the full potential of many of the new reproductive techniques is the lack of abundant numbers of fertilizable oocytes. This problem could be addressed by using the large source of oocytes available from preantral and primordial follicles by developing systems for in vitro growth.
openaire   +2 more sources

Onset and Heterogeneity of Responsiveness to FSH in Mouse Preantral Follicles in Culture [PDF]

, 2016
The obligatory role of follicle-stimulating hormone (FSH) in normal development and function of ovarian antral follicles is well recognized, but its function in preantral growth is less clear. The specific objective of this study was to investigate the
Fenwick, M., Franks, S., Hardy, K., Laird, M., Mora, J., Thomson, K.   +5 more
core   +1 more source

Mechanical isolation of capuchin monkey (Cebus apella) preantral ovarian follicles

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2003
The aim of this study was to adapt a mechanical procedure for the isolation of intact preantral follicles from Cebus apella ovaries. The interval effect of serial sections of the tissue chopper was tested on a number of preantral follicles isolated from ...
S.F.S. Domingues, H.S. Ferreira, J.A.P.C. Muniz, A.K.F. Lima, O.M. Ohashi, J.R. Figueiredo, L.D.M. Silva   +6 more
doaj   +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   +3 more sources

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

Animals, 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, Diva Anélie de Araújo Guimarães, Pedro Mayor, Maria Auxiliadora Pantoja Ferreira, Leandro Nassar Coutinho, Frederico Ozanan Barros Monteiro   +5 more
doaj   +1 more source

Short-term preservation of canine preantral follicles : effects of temperature, medium and time [PDF]

, 2009
The use of the large pool of preantral follicles is a promising alternative to provide high numbers of fertilizable oocytes to reproductive biotechnology.
Báo, Sônia Nair, Campello, Claudio Cabral, Celestino, Juliana Jales de Hollanda, Chaves, Roberta Nogueira, Figueiredo, José Ricardo de, Jewgenow, Katarina, Lopes, Cláudio Afonso Pinho, Melo, Mônica Aline Parente, Santo, Regiane Rodrigues dos, Silva, José Roberto Viana   +9 more
core   +1 more source