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| http://dx.doi.org/10.1016/j.fertnstert.2018.04.023 | DOI Listing |
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Ultra-Fast Warming Procedure of Vitrified Blastocysts Results in Maintained Embryology and Clinical Outcomes.
Reprod Sci
January 2025
Service de Médecine Et Biologie de La Reproduction, Hôpital Mère Et Enfant, CHU de Nantes, 38 Boulevard Jean Monnet, Nantes, France.
Vitrification has revolutionized embryo cryopreservation, but represents a significant workload in the IVF lab. We evaluated here an ultrafast blastocyst warming procedure in order to improve workflow while maintaining clinical outcome. We first evaluated the expression of main markers of lineage specification in a subset of blastocysts donated to research warmed with ultrafast protocol.
View Article and Find Full Text PDFArtificial removal of the zona pellucida at the pronuclear stage: an exploratory study to improve embryo fragmentation.
F S Rep
December 2024
Reproductive Center, Medical Corporation Group Mio Fertility Clinic, Kuzumo-Minami, Yonago, Japan.
Objective: To investigate whether artificial removal of zona pellucida (ZP) at the pronuclear stage improves good-quality embryos and blastocyst development in patients with difficulty conceiving because of severe fragmentation in early-cleavage stage.
Design: Exploratory investigation.
Setting: Reproductive center.
Fertility journey of a patient with McCune-Albright syndrome associated with bilateral ovarian involvement.
F S Rep
December 2024
Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada.
Objective: To report a patient with McCune-Albright syndrome (MAS) with bilateral ovarian involvement who had achieved a pregnancy through in vitro fertilization (IVF).
Design: Case report.
Setting: Academic fertility center.
Asynchronous Embryo Transfer in Ewes.
Reprod Domest Anim
January 2025
College of Animal Science and Technology, Hebei Technology Innovation Center of Cattle and Sheep Embryo, Hebei Agricultural University, Baoding, Hebei, China.
The aim of the present study was to evaluate the effects of spatially and/or temporally asynchronous transfer of in vivo embryos at different stages in ewes during the breeding season. Four experiments were carried out. In Experiment 1, 207 blastocysts that had been frozen and thawed were transferred into the oviducts of 43 day two recipients, the oviducts of 23 day six recipients, and the uteri of 141 day six recipients, respectively.
View Article and Find Full Text PDFEffect of hydroxypropyl cellulose on vitrification of sheep embryos.
Cryobiology
January 2025
Yanbian University College of Agriculture, Yanbian Korean Autonomous Prefecture, 133000,China. Electronic address:
Vitrification is a conventional and mature method for embryo cryopreservation, but ice crystals formed during the vitrification process can damage embryos. HPC has the property of forming a high-viscosity gel under low-temperature conditions, so it can be added to vitrification solutions to investigate whether it improves the negative impact of vitrification on embryos. The results showed that the addition of HPC (50 μg/ml) to the vitrification solution significantly increased the post-warming survival rate of sheep morula embryos.
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