Results 1 to 10 of about 200,095 (308)

Oocyte cryopreservation review: outcomes of medical oocyte cryopreservation and planned oocyte cryopreservation [PDF]

Reproductive Biology and Endocrinology, 2022
Background The utilization of oocyte cryopreservation (OC) has become popularized with increasing numbers of reproductive-aged patients desiring to maintain fertility for future family building.
Zachary Walker, Andrea Lanes, Elizabeth Ginsburg   +2 more
doaj   +3 more sources

Isolation and in vitro Culture of Mouse Oocytes

Bio-Protocol, 2021
Females are endowed at birth with a fixed reserve of oocytes, which declines both in quantity and quality with advancing age. Understanding the molecular mechanisms regulating oocyte quality is crucial for improving the chances of pregnancy success in ...
Jessica Greaney, Goutham Narayanan Subramanian, Yunan Ye, Hayden Homer   +3 more
doaj   +1 more source

Interspecies somatic cell nuclear transfer is dependent on compatible mitochondrial DNA and reprogramming factors [PDF]

, 2011
Interspecies somatic cell nuclear transfer (iSCNT) involves the transfer of a nucleus or cell from one species into the cytoplasm of an enucleated oocyte from another.
Jiang, Yan, Kelly, Richard D. W., Peters, Amy, Fulka, Helena, Dickinson, Adam, Mitchell, Daniel A., St. John, Justin C.   +6 more
core   +11 more sources

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

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

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

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

Filopodia-like protrusions of adjacent somatic cells shape the developmental potential of oocytes

Life Science Alliance, 2023
Filopodia-like protrusions sent by the somatic cells to the oocyte play a role in the structural integrity of the germline–somatic complex, and regulate gene expression in the oocyte and thus its developmental potential and chances to produce a viable ...
Flora Crozet, Gaëlle Letort, Rose Bulteau, Christelle Da Silva, Adrien Eichmuller, Anna Francesca Tortorelli, Joséphine Blévinal, Morgane Belle, Julien Dumont, Tristan Piolot, Aurélien Dauphin, Fanny Coulpier, Alain Chédotal, Jean-Léon Maître, Marie-Hélène Verlhac, Hugh J Clarke, Marie-Emilie Terret   +16 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

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