Results 241 to 250 of about 200,813 (309)

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

Metabolic Comparison of Mature and Immature Bovine Cumulus-Oocyte Complexes with Standardization of Bioenergetic Assessment. [PDF]

Biomolecules
Algieri C, Attolini E, Iacono E, Nesci S, Merlo B.   +4 more
europepmc   +1 more source

Why Respect for the Human Embryo? [PDF]

, 2002
Velez, Juan R.
core   +1 more source

Computer‐Assisted Sperm Analysis (CASA) Versus Manual Evaluation and the Clinical Significance of Sperm Hyperactivated Motility

Andrology, EarlyView.
Abstract Background Semen analysis remains the first‐line diagnostic test for male infertility, although it is affected by operator subjectivity. Computer‐assisted sperm analysis (CASA) is proposed to improve objectivity; however, its accuracy and clinical relevance remain uncertain.
Maria Emanuela Ragosta, Giulia Traini, Francesca Benini, Margherita Montereggi, Federica Bini, Lara Tamburrino, Linda Vignozzi, Elisabetta Baldi, Sara Marchiani   +8 more
wiley   +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

Decreased PTGES2 Farnesylation in Granulosa Cells Compromises PGE2-Dependent Cumulus Expansion and Oocyte Maturation During Ovarian Aging. [PDF]

Aging Cell
Zhang S, Qi J, Liu C, Zhang H, Guo B, Wu D, Liu Y, Zhen X, Zhang Y, Kang N, Zhou J, Yan G, Li C, Ding L, Sun H.   +14 more
europepmc   +1 more source

Calcium response during human oocyte activation : the effect of in vitro maturation and cryopreservation [PDF]

, 2012
De Sutter, Petra, Heindryckx, Björn, Nikiforaki, Dimitra, Qian, Chen, Van den Abbeel, Etienne, Vanden Meerschaut, Frauke   +5 more
core   +1 more source

Does synchronising follicular wave emergence improve outcomes in non‐superstimulated donor cattle undergoing ovum pick‐up (OPU) for in vitro embryo production?

Australian Veterinary Journal, EarlyView.
In vitro embryo production (IVEP) is now a widely commercialised assisted reproductive technology used in cattle reproduction. The use of follicle‐stimulating hormone (FSH) to superstimulate donor cattle prior to ovum pick‐up (OPU) is generally regarded as an effective strategy to improve oocyte quality, developmental competence and increase embryo ...
J Bird, RP Nevard
wiley   +1 more source

Synaptotagmin 5, not synaptotagmin 1, is required for cortical granule exocytosis at fertilization of mouse eggs†. [PDF]

Biol Reprod
Mehlmann LM, Uliasz TF, Lowther KM.
europepmc   +1 more source

Weaponry Investment in the Socially Monogamous Snapping Shrimp Alpheus brasileiro (Decapoda: Alpheidae)

Acta Zoologica, EarlyView.
ABSTRACT Weapons are morphological structures used by animals in various contexts, especially in intra‐specific contests and visual displays. In snapping shrimps of the genus Alpheus, particularly the monogamous species Alpheus brasileiro, both sexes bear enlarged chelipeds, potentially conferring advantages in mate competition or territorial defence ...
Leonardo Moreira, Caio Santos Nogueira, Régis Augusto Pescinelli, Rogerio Caetano Costa   +3 more
wiley   +1 more source