Results 21 to 30 of about 298,840 (357)
eLife, 2016 Mammalian oocytes are arrested in the dictyate stage of meiotic prophase I for long periods of time, during which the high concentration of the p53 family member TAp63α sensitizes them to DNA damage-induced apoptosis.
Daniel Coutandin +15 more
doaj +1 more source
Comparison of ovarian cycles of Hungarian riverine fish species representing different spawning strategies [PDF]
, 2008 Investigations on the ovarian cycle of fish species that inhabit Hungarian rivers are necessitated by both environmental and economic reasons. The objective of our research was to explore new fundamental knowledge concerning the ovarian cycle of the ...
Baska, Ferenc +6 more
core +1 more source
Journal of Ovarian Research, 2011 Introduction The presence of oocytes in the ovarian surface epithelium has already been confirmed in the fetal ovaries. We report the presence of SSEA-4, SOX-2, VASA and ZP2-positive primitive oocyte-like cells in the adult ovarian surface epithelium of ...
Virant-Klun Irma +4 more
doaj +1 more source
Altered germline cyst formation and oogenesis in Tex14 mutant mice
Biology Open, 2021 During oocyte differentiation in mouse fetal ovaries, sister germ cells are connected by intercellular bridges, forming germline cysts. Within the cyst, primary oocytes form via gaining cytoplasm and organelles from sister germ cells through germ cell ...
Kanako Ikami +7 more
doaj +1 more source
Animals, 2022 In vitro maturation (IVM) of mammalian oocytes, which influences subsequent in vitro development of embryos, is affected by the macromolecule content in culture media for the success of oocyte maturation competence, in which the cytoplasmic and nuclear ...
Uğur Şen +5 more
doaj +1 more source
Executive Privilege in the Federal Courts [PDF]
, 1962 Apoptosis is one type of programmed cell death, important during tissue development and to maintain the tissue homeostasis. Apoptosis comprises a complex network of internal signaling pathways, and an important part of this signaling network is the ...
null null, Ulrika Englund
core +2 more sources
Freeze/thaw stress induces organelle remodeling and membrane recycling in cryopreserved human mature oocytes [PDF]
, 2016 Purpose: Our aim was to evaluate the ultrastructure of human metaphase II oocytes subjected to slow freezing and fixed after thawing at different intervals during post-thaw rehydration.
Albani, E. +8 more
core +1 more source
Jurnal Veteriner, 2017 The objective of this study was to evaluate the maturation and fertilization ability of oocytes frompre-pubertal sheep ovary in vitro. Prepubertal ovary were collected based on the absence of corpus luteum or absence of corpus albicans in both of the ...
Anita Hafid +2 more
doaj +1 more source
Frontiers in Endocrinology, 2023 Infertility and menstrual abnormalities in endometriosis patients are frequently caused by aberrant follicular growth or a reduced ovarian reserve. Endometriosis typically does not directly harm the oocyte, but rather inhibits the function of granulosa ...
Weisen Fan +4 more
doaj +1 more source
A spontaneous increase in intracellular Ca2+ in metaphase II human oocytes in vitro can be prevented by drugs targeting ATP-sensitive K+ channels [PDF]
, 2015 STUDY QUESTION: Could drugs targeting ATP-sensitive K+ (KATP) channels prevent any spontaneous increase in intracellular Ca2+ that may occur in human metaphase II (MII) oocytes under in vitro conditions?
Barratt, Christopher L. R. +13 more
core +6 more sources