Results 21 to 30 of about 380,066 (397)
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
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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
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
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 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
Localisation of RNAs into the germ plasm of vitellogenic xenopus oocytes [PDF]
, 2013 We have studied the localisation of mRNAs in full-grown Xenopus laevis oocytes by injecting fluorescent RNAs, followed by confocal microscopy of the oocyte cortex.
B Heinrich +66 more
core +9 more sources
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
Sperm proteins SOF1, TMEM95, and SPACA6 are required for sperm−oocyte fusion in mice
Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance The sperm−oocyte fusion step is important to transport the male genome into oocytes. So far, IZUMO1 and FIMP have been identified as fusion-related proteins in spermatozoa, but the molecular mechanisms underpinning sperm−oocyte fusion and ...
Taichi Noda +7 more
semanticscholar +1 more source
Biosynthesis and expression of zona pellucida glycoproteins in mammals [PDF]
, 2001 The zona pellucida (ZP) is an extracellular matrix surrounding the oocyte and the early embryo that exerts several important functions during fertilization and early embryonic development.
Kölle, S. +2 more
core +1 more source