Results 31 to 40 of about 138,167 (340)

Abnormal early cleavage events predict early embryo demise: sperm oxidative stress and early abnormal cleavage. [PDF]

, 2014
Human embryos resulting from abnormal early cleavage can result in aneuploidy and failure to develop normally to the blastocyst stage. The nature of paternal influence on early embryo development has not been directly demonstrated although many studies ...
Barker, Christopher M, Burruel, Victoria, Klooster, Katie, Meyers, Stuart, Pera, Renee Reijo   +4 more
core   +2 more sources

Fatty Acid Supplementation During in vitro Embryo Production Determines Cryosurvival Characteristics of Bovine Blastocysts

Frontiers in Cell and Developmental Biology, 2022
In vitro production (IVP) embryos have a reduced quality and poor cryotolerance in comparison to in vivo embryos. This study investigated whether free fatty acid (FFA) conditions, fatty acid free (FAF)- synthetic oviduct fluid (SOF) without or with 25 μM
H. Aardema, I. Bertijn, HTA. van Tol, A. Rijneveld, JCM. Vernooij, B. M. Gadella, PLAM Vos   +6 more
doaj   +1 more source

Clinical outcome of fresh and vitrified-warmed blastocyst and cleavage-stage embryo transfers in ethnic Chinese ART patients

Journal of Ovarian Research, 2012
Objectives This study sought to evaluate the outcome of fresh and vitrified-warmed cleavage-stage and blastocyst-stage embryo transfers in patients undergoing ART treatment within an ethnic Chinese population.
Tong Guo, Cao Shan, Wu Xun, Zhang Jun, Cui Ji, Heng Boon, Ling Xiu   +6 more
doaj   +1 more source

Morphogenesis of the mammalian blastocyst

Molecular and Cellular Endocrinology, 2008
The first 4 days of mouse pre-implantation development are characterized by a period of segmentation, including morphogenetic events that are required for the divergence of embryonic and extra-embryonic lineages. These extra-embryonic tissues are essential for the implantation into the maternal uterus and for the development of the foetus.
Bernard Maro, Bernard Maro, Manuel Breuer, Sophie Louvet-Vallée, Nicolas Dard   +4 more
openaire   +5 more sources

Human embryos from overweight and obese women display phenotypic and metabolic abnormalities [PDF]

, 2014
STUDY QUESTION Is the developmental timing and metabolic regulation disrupted in embryos from overweight or obese women? SUMMARY ANSWER Oocytes from overweight or obese women are smaller than those from women of healthy weight, yet post-fertilization ...
Leary, C., Leary, Christine, Leese, H. J., Leese, Henry J., Sturmey, R. G., Sturmey, Roger G.   +5 more
core   +1 more source

Blastomere movement post first cell division correlates with embryonic compaction and subsequent blastocyst formation

Reproductive Biology and Endocrinology, 2019
Background Blastomere movement (BMov) occurs after the first cell division in human embryos. This movement has been suggested as a prognostic parameter for pregnancy outcome prediction following cleavage-stage embryo transfer. However, the effect of BMov
Kazuki Ohata, Kenji Ezoe, Tetsuya Miki, Hirofumi Morita, Ryoma Tsuchiya, Shigeru Kaneko, Tadashi Okimura, Kazuo Uchiyama, Akiko Yabuuchi, Tamotsu Kobayashi, Markus Montag, Keiichi Kato   +11 more
doaj   +1 more source

Time from trophectoderm biopsy to vitrification affects the developmental competence of biopsied blastocysts

Reproductive Medicine and Biology, 2022
Purpose The present study aimed to examine the correlations of the time interval from trophectoderm (TE) biopsy to vitrification with the blastocyst survival rate and blastocyst outgrowth ability.
Tetsuya Miki, Kenji Ezoe, Shizu Kouraba, Kazuki Ohata, Keiichi Kato   +4 more
doaj   +1 more source

CDX2 downregulation in mouse mural trophectoderm during peri‐implantation is heteronomous, dependent on the YAP‐TEAD pathway and controlled by estrogen‐induced factors

Reproductive Medicine and Biology, 2022
Purpose To investigate the transition of CDX2 expression patterns in mouse trophectoderm (TE) and its regulatory mechanisms during implantation. Methods Mouse E3.5–4.5 blastocysts were used to immunostain CDX2, YAP, TEAD4, and ESRRB.
Daisuke Suzuki, Keitaro Okura, Seina Nagakura, Hidehiko Ogawa   +3 more
doaj   +1 more source

Assessment of aneuploidy concordance between clinical trophectoderm biopsy and blastocyst

Human Reproduction, 2018
STUDY QUESTION Is a clinical trophectoderm (TE) biopsy a suitable predictor of chromosomal aneuploidy in blastocysts? SUMMARY ANSWER In the analyzed group of blastocysts, a clinical TE biopsy was an excellent representative of blastocyst karyotype in ...
A. Victor, D. Griffin, Alan J Brake, Jack C. Tyndall, Alex E. Murphy, Laura T. Lepkowsky, Archana Lal, C. Zouves, F. Barnes, R. McCoy, M. Viotti   +10 more
semanticscholar   +1 more source

Cryopreservation of equine oocytes: looking into the crystal ball [PDF]

, 2020
In vitro embryo production has evolved rapidly in the horse over the past decade, but blastocyst rates from vitrified equine oocytes remain quite poor and further research is needed to warrant application.
Angel Velez, Daniel, De Coster, Tine, Smits, Katrien, Van Soom, Ann, Woelders, Henri   +4 more
core   +2 more sources