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Investigators aim to investigate the effect of elimination of blastocoelic fluid by creating a large hole in the zona pellucida at the cellular junction of the trophectoderm cells located far away from the inner cell mass with a laser pulse before vitrification.
Human blastocyst formation begins about 5 days after injecting a single sperm into an oocyte in ICSI cycle or incubation of them in IVF cycle. Human blastocyst consists of cells forming an outer layer called trophotoderm that will form the placenta in case of successful implantation, an inner cell mass which become the fetus, a fluid-filled blastocoel cavity in the center, and a surrounding zone pellucida from which the embryo hatches to implant in the uterus. Human blastocyst contains a large amount of liquid in the blastocoel, which alters the infiltration of vitrification solution during the vitrification procedures leading to ice crystal formation. Therefore, investigators need to compare blastocyst survival, clinical pregnancy and implantation rates between vitrified untreated expanded blastocysts and vitrified blastocysts with artificially eliminated blastocoels by a laser pulse prior to vitrification
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment
Dar AlMaraa Center
Published on BioPortfolio: 2016-11-30T15:45:22-0500
The aim of the study is to determine if collapsing an embryo (or making it fold compactly by taking away its fluid) before the transfer in the uterine cavity improves pregnancy rates in as...
In assisted reproduction technology (ART), cryopreservation of embryos maximizes the potential of IVF cycles. Currently different cryopreservation methods are used, the conventional slow f...
Human embryos can be preserved for later transfers by freezing. Traditionally the slow cooling method has been used. About 70% of the embryos remain fully intact after thawing. However, th...
Great scientific effort has been made to improve practical as well as economical procedures of modern assisted reproduction. In the last years a shift from the well established method of ...
Randomized controlled trial (RCT) testing the hypothesis that vitrification is superior to slow freezing.
This study compared the efficacy of docetaxel (DT) and paclitaxel (PT) in reducing spindle damage during vitrification and maintaining the developmental competence of in vitro-matured (IVM) bovine ooc...
Measurement of Thermal Conductivities of Two Cryoprotective Agent Solutions for Vitreous Cryopreservation of Organs at the Temperature Range of 77 K-300 K Using a Thermal Sensor Made of Microscale Enamel Copper Wire.
Biobanking of organs by cryopreservation is an enabling technology for organ transplantation. Compared with the conventional slow freezing method, vitreous cryopreservation has been regarded to be a m...
Oocyte vitrification is a practical tool in assisted reproductive technology and fertility preservation. However, vitrification requires high concentration of cryoprotectants (CPAs), which may cause o...
BACKGROUND: Vitrification, the ice-free cryopreservation, develops rapidly and can become an ideal method for long-term preservation of cells and tissues. But up to now it is not practical for s...
BACKGROUND: Some mammalian oocytes have been successfully cryopreserved by vitrification. However, the survival and developmental rate of vitrified oocytes is still low. The incorporation of nan...
The shrinkage of the foreign body encapsulation scar tissue that forms around artificial implants imbedded in body tissues.
The transformation of a liquid to a glassy solid i.e., without the formation of crystals during the cooling process.
Devices intended to replace non-functioning organs. They may be temporary or permanent. Since they are intended always to function as the natural organs they are replacing, they should be differentiated from PROSTHESES AND IMPLANTS and specific types of prostheses which, though also replacements for body parts, are frequently cosmetic (EYE, ARTIFICIAL) as well as functional (ARTIFICIAL LIMBS).
Any method of artificial breathing that employs mechanical or non-mechanical means to force the air into and out of the lungs. Artificial respiration or ventilation is used in individuals who have stopped breathing or have RESPIRATORY INSUFFICIENCY to increase their intake of oxygen (O2) and excretion of carbon dioxide (CO2).
The artificial substitution of heart and lung action as indicated for HEART ARREST resulting from electric shock, DROWNING, respiratory arrest, or other causes. The two major components of cardiopulmonary resuscitation are artificial ventilation (RESPIRATION, ARTIFICIAL) and closed-chest CARDIAC MASSAGE.