Results 81 to 90 of about 264,880 (269)
Coenzyme Q10 restores oocyte mitochondrial function and fertility during reproductive aging
Aging Cell, 2015 Female reproductive capacity declines dramatically in the fourth decade of life as a result of an age‐related decrease in oocyte quality and quantity.
A. Ben-Meir +17 more
semanticscholar +1 more source
Oocyte maturation and quality: role of cyclic nucleotides.
Reproduction, 2016 The cyclic nucleotides, cAMP and cGMP, are the key molecules controlling mammalian oocyte meiosis. Their roles in oocyte biology have been at the forefront of oocyte research for decades, and many of the long-standing controversies in relation to the ...
R. Gilchrist +9 more
semanticscholar +1 more source
Oocyte-secreted factors enhance oocyte developmental competence
Developmental Biology, 2006 The capacity of fully grown oocytes to regulate their own microenvironment by paracrine factors secreted by the oocyte (oocyte-secreted factors, OSFs) may in turn contribute to oocyte developmental competence. Here, we investigated if OSFs have a direct influence on oocyte developmental competence during in vitro maturation (IVM). Bovine cumulus-oocyte
Hussein, T., Thompson, J., Gilchrist, R.
openaire +4 more sources
SET Improved Oocyte Maturation by PP2A and Inhibited Oocyte Apoptosis in Mouse Oocytes
, 2021 Abstract Background: SET is a multifunctional protein involved in a variety of molecular processes such as transcription control, chromatin remodeling, cell apoptosis, and cell-cycle regulation. In ovaries SET is predominantly expressed in theca cells and oocytes. And in PCOS patients the expression of SET was increased than normal people.
Lingling Gao +4 more
openaire +2 more sources
Why so many sperm cells? [PDF]
arXiv, 2014 A key limiting step in fertility is the search for the oocyte by spermatozoa. Initially, there are tens of millions of sperm cells, but a single one will make it to the oocyte. This may be one of the most severe selection processes designed by evolution, whose role is yet to be understood. Why is it that such a huge redundancy is required and what does
arxiv
In Vitro Fertilization (IVF) Cumulative Pregnancy Rate Prediction from Basic Patient Characteristics [PDF]
arXiv, 2019 Tens of millions of women suffer from infertility worldwide each year. In vitro fertilization (IVF) is the best choice for many such patients. However, IVF is expensive, time-consuming, and both physically and emotionally demanding. The first question that a patient usually asks before the IVF is how likely she will conceive, given her basic medical ...
arxiv
Human Reproduction, 2016 Study question Can a counseling tool be developed for women desiring elective oocyte cryopreservation to predict the likelihood of live birth based on age and number of oocytes frozen? Summary answer Using data from ICSI cycles of a population of women
R. Goldman +5 more
semanticscholar +1 more source
Recent advances of the egg\'s freezing: An overview
Journal of Mazandaran University of Medical Sciences, 2018 It is now more than three decades since the first live birth from oocyte cryopreservation. At present, oocyte cryopreservation has become a major component of Assisted Reproductive technologies (ART).
Faranak Aghaz, Mozafar Khazaei
doaj
Aging, 2017 Oxidative stress is known as a major contributing factor involved in oocyte aging, which negatively affects oocyte quality and development after fertilization. Melatonin is an effective free radical scavenger and its metabolites AFMK and AMK are powerful
Tao Wang +8 more
semanticscholar +1 more source
In vitro strategies to enhance oocyte developmental competence
Frontiers in Bioscience-Scholar, 2020 Oocyte quality influences early embryonic survival, establishment and maintenance of pregnancy, fetal development and adult diseases. The developmental competence of oocytes is acquired gradually and increases with follicular development.
Vikash Chandra, Gutulla Taru Sharma
doaj +1 more source