Results 11 to 20 of about 200,095 (308)
Human Reproduction, 1998 Primary oocytes recovered from small and growing follicles of > or = 3 mm in the ovaries of untreated women, can be matured in vitro, will fertilize and develop in vitro, and when transferred to the patient, develop to term. However, the implantation rate of cleaved embryos has been disappointingly low and when embryos are allowed to develop beyond the
A, Trounson +5 more
openaire +2 more sources
Is there an optimal timing interval between hCG trigger and oocyte vitrification?
Taiwanese Journal of Obstetrics & Gynecology, 2022 Objective: Oocyte vitrification has been developed as a promising alternative to slow freezing; however, the clinical outcome is highly operator dependent.
Yu-Wen Weng +5 more
doaj +1 more source
Nature Communications, 2020 Meiotic cell division in oocytes is asymmetric and requires microtubule spindle migration after anaphase-onset. Here, the authors show that Nampt, an enzyme of the Nicotinamide adenine dinucleotide (NAD) biosynthetic pathway, contributes to post-anaphase
Zhe Wei +3 more
doaj +1 more source
Oocyte specific lncRNA variant Rose influences oocyte and embryo development
Non-coding RNA Research, 2021 Fully grown mammalian oocytes store a large amount of RNA synthesized during the transcriptionally active growth stage. A large part of the stored RNA belongs to the long non-coding class which contain either transcriptional noise or important ...
Rajan Iyyappan +5 more
doaj +1 more source
Frontiers in Endocrinology, 2021 BackgroundCurrently, in China, only women undergoing in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) cycles can donate oocytes to others, but at least 15 oocytes must be kept for their own treatment.
Zhiqin Bu +3 more
doaj +1 more source
Cells, 2021 Cumulus cells (CCs) originating from undifferentiated granulosa cells (GCs) differentiate in mural granulosa cells (MGCs) and CCs during antrum formation in the follicle by the distribution of location. CCs are supporting cells of the oocyte that protect
Bongkoch Turathum +2 more
doaj +1 more source
Animal, 2023 The oocyte is the basis of life, supporting development from a fertilized cell to an independent multicellular organism. The oocyte’s competence to drive the first cell cycles postfertilization are critical to embryonic survival and subsequent successful
Camila Bortoliero Costa +2 more
doaj +1 more source
Transcriptionally inactive oocyte-type 5S RNA genes of Xenopus laevis are complexed with TFIIIA in vitro [PDF]
, 1987 An extract from whole oocytes of Xenopus laevis was shown to transcribe somatic-type 5S RNA genes approximately 100-fold more efficiently than oocyte-type 5S RNA genes.
Eversole-Cire, Pamela +4 more
core +1 more source
Porcine oocyte maturation in vitro : role of cAMP and oocyte-secreted factors: a practical approach [PDF]
, 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
Oocyte Competence Biomarkers Associated With Oocyte Maturation: A Review
Frontiers in Cell and Developmental Biology, 2021 Oocyte developmental competence is one of the determining factors that influence the outcomes of an IVF cycle regarding the ability of a female gamete to reach maturation, be fertilized, and uphold an embryonic development up until the blastocyst stage ...
Batara Sirait +9 more
doaj +1 more source