Results 11 to 20 of about 380,066 (397)

The Role of Mitochondria in Oocyte Maturation

Cells, 2021
With the nucleus as an exception, mitochondria are the only animal cell organelles containing their own genetic information, called mitochondrial DNA (mtDNA).
A. Kirillova, J. Smitz, G. Sukhikh, I. Mazunin   +3 more
semanticscholar   +1 more source

The oocyte spindle midzone pauses Cdk1 inactivation during fertilization to enable male pronuclear formation and embryo development

Cell Reports, 2022
Summary: Inactivation of cyclin-dependent kinase 1 (Cdk1), controlled by cyclin B1 proteolysis, orders events during mitotic exit. Here, we used a FRET biosensor to study Cdk1 activity while simultaneously monitoring anaphase II and pronuclear (PN ...
Chenxi Zhou, Hayden A. Homer
doaj   +1 more source

Lipid Metabolism Was Associated With Oocyte in vitro Maturation in Women With Polycystic Ovarian Syndrome Undergoing Unstimulated Natural Cycle

Frontiers in Cell and Developmental Biology, 2021
ObjectiveHyperlipidemia are common polycystic ovarian syndrome (PCOS)-related metabolic dysfunctions and can adversely affect assisted reproductive technology (ART) outcomes in controlled ovarian hyperstimulation (COH) cycles. The objective of this study
Tao Liu, Tao Liu, Tao Liu, Tao Liu, Tao Liu, Dongming Liu, Dongming Liu, Dongming Liu, Dongming Liu, Dongming Liu, Xueling Song, Xueling Song, Xueling Song, Xueling Song, Xueling Song, Jiangxue Qu, Jiangxue Qu, Jiangxue Qu, Jiangxue Qu, Jiangxue Qu, Xiaoying Zheng, Xiaoying Zheng, Xiaoying Zheng, Xiaoying Zheng, Xiaoying Zheng, Jia Li, Jia Li, Jia Li, Jia Li, Jia Li, Rui Yang, Rui Yang, Rui Yang, Rui Yang, Rui Yang, Shuo Yang, Shuo Yang, Shuo Yang, Shuo Yang, Shuo Yang, Xi Zhang, Xi Zhang, Xi Zhang, Xi Zhang, Xi Zhang, Haiyan Wang, Haiyan Wang, Haiyan Wang, Haiyan Wang, Haiyan Wang, Liying Yan, Liying Yan, Liying Yan, Liying Yan, Liying Yan, Caihong Ma, Caihong Ma, Caihong Ma, Caihong Ma, Caihong Ma, Rong Li, Rong Li, Rong Li, Rong Li, Rong Li, Jie Yan, Jie Yan, Jie Yan, Jie Yan, Jie Yan, Jie Qiao, Jie Qiao, Jie Qiao, Jie Qiao, Jie Qiao   +74 more
doaj   +1 more source

Mechanisms of Oocyte Maturation and Related Epigenetic Regulation

Frontiers in Cell and Developmental Biology, 2021
Meiosis is the basis of sexual reproduction. In female mammals, meiosis of oocytes starts before birth and sustains at the dictyate stage of meiotic prophase I before gonadotropins-induced ovulation happens. Once meiosis gets started, the oocytes undergo
Meina He, Tuo Zhang, Yi Yang, Chao Wang
semanticscholar   +1 more source

Oocyte cryopreservation: where are we now?

Human Reproduction Update, 2016
Joyce C Harper, Melanie C Davies
exaly   +2 more sources

Oocyte cryopreservation [PDF]

Human Reproduction, 1998
Cryopreservation of human oocytes has been employed with little success in clinical practice, even though it may solve the legal and ethical problems linked to embryo freezing. Various attempts to cryopreserve human oocytes have mostly been unsuccessful, leading to low oocyte survival rates after thawing, and the search for an optimal protocol for ...
R, Fabbri, E, Porcu, T, Marsella, M R, Primavera, R, Seracchioli, P M, Ciotti, O, Magrini, S, Venturoli, C, Flamigni   +8 more
openaire   +2 more sources

A PP2A-B56—Centered View on Metaphase-to-Anaphase Transition in Mouse Oocyte Meiosis I

Cells, 2020
Meiosis is required to reduce to haploid the diploid genome content of a cell, generating gametes—oocytes and sperm—with the correct number of chromosomes.
Leonor Keating, Sandra A. Touati, Katja Wassmann   +2 more
doaj   +1 more source

An Eight Year Experience of Autologous Oocyte Vitrification for Infertile Patients Owing to Unavailability of Sperm on Oocyte Retrieval Day

Frontiers in Medicine, 2021
Objective: The objective of this study was to provide a descriptive analysis of the clinical outcomes achieved in oocyte vitrification in cases where sperm was unavailable on oocyte retrieval day, and to identify predictors of oocyte survival.Methods ...
Xiao Fu, Xiao Fu, Xiao Fu, Xiaojie Liu, Xiaojie Liu, Xiaojie Liu, Jing Li, Jing Li, Jing Li, Meng Zhang, Meng Zhang, Meng Zhang, Jingjing Jiang, Jingjing Jiang, Qianqian Chen, Qianqian Chen, Mei Li, Mei Li, Shanshan Gao, Shanshan Gao, Shanshan Gao, Jinlong Ma, Jinlong Ma   +22 more
doaj   +1 more source

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, Ming-Huei Lin, Robert Kuo-Kuang Lee, Sheng-Hsiang Li, Quan-Bin Jou, Ying Ju Chen   +5 more
doaj   +1 more source

The Presence of Immature GV− Stage Oocytes during IVF/ICSI Is a Marker of Poor Oocyte Quality: A Pilot Study

Medical Sciences, 2020
Here we investigate whether the presence of germinal vesicle-stage oocytes (GV− oocytes) reflects poor oocyte developmental competence (or quality).
Pia Astbury, Goutham N. Subramanian, Jessica Greaney, Chris Roling, Jacqui Irving, Hayden A. Homer   +5 more
doaj   +1 more source