Results 141 to 150 of about 280,910 (369)

Porcine oocyte maturation in vitro : role of cAMP and oocyte-secreted factors: a practical approach [PDF]

open access: yes, 2016
Polyspermy or the penetration of more than one sperm cell remains a problem during porcine in vitro fertilization (IVF). After in vitro culture of porcine zygotes, only a low percentage of blastocysts develop and their quality is inferior to that of in ...
Appeltant, Ruth   +4 more
core   +2 more sources

EVALUATION OF TWO in vitro MATURATION MEDIUM FOR EMBRYO PRODUCTION IN SHEEP

open access: yesTropical and Subtropical Agroecosystems, 2008
The aim of this work was to evaluate the effect of HECM-9 and TCM-199 as maturation media on maturation (MR), in vitro fertilization (IVF) and embryo development (ED) rate of oocytes from hair sheep collected from slaughter house ovaries.
J. M. Robledo Verduzco   +4 more
doaj  

Exposure to α-Tocopherol, Lutein or Ascorbic Acid improve Cumulus Expansion, Viability and Maturation of Swine Oocytes

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
Protection of the fatty acid and lipid components of oocytes that render them susceptible to free radical or other oxidative injury may prevent the damage currently associated with culture. The goal of this study was to establish the influence of several
Ileana Miclea   +4 more
doaj  

The correlation between ANAs and pregnancy loss and their impact on IVF/ICSI‐ET pregnancy outcomes in patients with recurrent pregnancy loss

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To explore the correlation between antinuclear antibodies (ANAs) and pregnancy loss (PL), and to observe its impact on the pregnancy outcomes of in vitro fertilization/intracytoplasmic sperm injection‐embryo transfer (IVF/ICSI‐ET) in recurrent PL (RPL) patients. Methods In this retrospective study, patients first seen at the hospital
Manman Liu   +8 more
wiley   +1 more source

Oocyte Maturation in Starfish

open access: yesCells, 2020
Oocyte maturation is a process that occurs in the ovaries, where an immature oocyte resumes meiosis to attain competence for normal fertilization after ovulation/spawning. In starfish, the hormone 1-methyladenine binds to an unidentified receptor on the plasma membrane of oocytes, inducing a conformational change in the heterotrimeric GTP-binding ...
openaire   +4 more sources

Gonadal development of Crassostrea gigas in Bahía San Quintín, Baja California, Mexico

open access: yesCiencias Marinas, 1995
The reproductive cycle of the Pacific oyster, Crassostrea gigas (Thunberg), presents significant differences (S [α = O.OS]) in September and October in the La Boca and Mina Vieja locations.
CG Paniagua-Chávez, MJ Acosta-Ruiz
doaj   +1 more source

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