Results 61 to 70 of about 20,007 (216)

Effect of Oocyte Vitrification Before and After in Vitro Maturation Towards Bcl-2, Bax and Bcl-2/Bax Ratio Expression [PDF]

, 2016
Objectives: to compare the expression of Bcl-2, Bax and Bcl-2/Bax ratio in cumulus cell and oocyte between vitrified oocyte pre and post in vitro maturation.Materials and Methods: Maturation was operated in medium TC 100 µl for 24 hours.
Aswin, H. (Haryanto), Faizah, Z. (Zakiyatul), Lunardhi, H. (Hamdani)   +2 more
core  

Reproductive Challenges of the Ageing Female: A Comprehensive Narrative Review

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Changes in societal norms over the last few decades have resulted in novel family planning trends, notably delayed childbearing and increased maternal age at the birth of the first child. Despite advances in reproductive medicine, ageing poses significant challenges.
Sofia Bitzika, Meletios P. Nigdelis, Angelos Daniilidis, Erich‐Franz Solomayer, Irene Lambrinoudaki, Efstratios M. Kolibianakis, Dimitrios G. Goulis   +6 more
wiley   +1 more source

Immature Oocyte for Fertility Preservation

Frontiers in Endocrinology, 2019
In vitro maturation (IVM) of human immature oocytes has been offered to women who are at risk of developing ovarian hyperstimulation syndrome (OHSS) caused by gonadotropin stimulation, such as PCO(S) patients or who have poor ovarian reserve ...
Weon-Young Son, Sara Henderson, Yoni Cohen, Michael Dahan, William Buckett   +4 more
doaj   +1 more source

Ultrastructural features of agouti (Dasyprocta aguti) preantral follicles cryopreserved using dimethyl sulfoxide, ethylene glycol and propanediol [PDF]

, 2012
The objective was to develop an efficient protocol for cryopreservation of agouti (Dasyprocta aguti) ovarian tissue. Agouti ovarian fragments were placed, for 10 min, in a solution containing MEM and fetal bovine serum plus 1.5 M dimethyl sulfoxide (DMSO)
Báo, Sônia Nair, Campello, Claudio Cabral, Faustino, Luciana Rocha, Figueiredo, José Ricardo de, Lima, Isadora Machado Teixeira, Lopes, Cláudio Afonso Pinho, Luza, Hiédely Kenia Machado, Rodrigues, Ana Paula Ribeiro, Silva, Alexandre Rodrigues, Wanderleya, Livia Schell   +9 more
core   +1 more source

The use of deidentified organ donor testes for research

Andrology, EarlyView.
Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova, Marnie W. Skinner, Juliana I. Candelaria, Stephen R. Wellard, Philip W. Jordan   +4 more
wiley   +1 more source

Improvement of Mouse Spermatozoa Freezing at ‐80°C With Ascorbic Acid 2‐Glucoside at Thawing Phase

Andrology, EarlyView.
ABSTRACT Background Sperm cryopreservation is the most common method to maintain a great number of mutant mouse lines. However, the use of liquid nitrogen (LN2) for freezing presents considerable problems in terms of cost, safety, and accessibility. For this reason, the storage of semen samples at ‐80° in ultra‐freezers has been increasingly used in ...
Alessia Paradiso, Renata Paoletti, Simone Cassetti, Nicola Bernabò, Barbara Barboni, Marcello Raspa, Ferdinando Scavizzi   +6 more
wiley   +1 more source

Development of medical freezing measures in women during the last decade from 2014 to 2023: registry data of the tri-national network FertiPROTEKT

Archives of Gynecology and Obstetrics
Research question To what extent have fertility preservation interventions evolved between 2014 and 2023, and what factors have influenced changes in their utilization and prevalence?
Angela Vidal, Verena Nordhoff, Moritz Suerdieck, Janna Pape, Michael von Wolff   +4 more
doaj   +1 more source

In Vitro Fertility of Post-thawed Epididymal Ram Spermatozoa After Storage at 5 °C Before Cryopreservation [PDF]

, 2013
This study addressed the effects of storage duration of epididymides at 5 °C before sperm collection and their fertility after cryopreservation in vitro.
fahrudin, M. (M), Karja, N. W. (N), Setiadi, M. A. (M)   +2 more
core  

Cryopreservation of swine ovarian tissue : effect of different cryoprotectants on the structural preservation of preantral follicle oocytes [PDF]

, 2009
The present study aimed to test different cryoprotectants on cryopreservation of pig ovarian tissue. Pig ovaries (n = 3) were collected at a local slaughterhouse. From each ovary, ten cortex samples were taken.
Amorima, C. A., Borges, Emily Nóbrega, Báo, Sônia Nair, Futino, Daniele Oga, Lucci, Carolina Madeira, Rocha-Junior, C. M. C., Silva, Renata Carvalho   +6 more
core   +1 more source

Hyperactivation and Tyrosine Phosphorylation of Cryopreserved Stallion Spermatozoa in Relation to Conventional In Vitro Fertilization Blastocyst Production

Andrology, EarlyView.
ABSTRACT Background Challenges in establishing clinical conventional in vitro fertilization (IVF) in horses include variation in sperm and oocyte quality, which can be affected by mare age. Extended preincubation of stallion spermatozoa has resulted in successful IVF.
Raul A. Gonzalez‐Castro, Carolina C. Porflidt, Alexandra L. Ash, Jacobo S. Rodriguez, Perla D. Fleury, Edward L. Squires, Elaine M. Carnevale   +6 more
wiley   +1 more source