The techniques of cryopreservation let embryos which cannot be immediately transferred to the patient be stored for future use. The first successful pregnancy after transfer of cryopreserved human embryos was described in 1983 by Trounson et al. and the first birth after cryopreservation was later reported in 1984 by Zeilmaker et al.). The technique has rapidly been applied in most in-vitro fer...

Background: Comparative features of embryos developed under in vitro and vivo conditions are particularly important designing embryo transfer procedures that fulfil embryo-recipient synchronization requirements. Objective: To determine the degree asynchrony rabbit development between cultured embryos. Methods: A total 55 non-lactating multiparous female rabbits were used. Embryos classified as ...

the effect of modified vitrification was assessed on cellular development capability in mouse embryos cultured in vitro. in this study, 466 embryos (from zygote to morula stages) were vitrified then thawed embryos have been incubated for in vitro farther development up to blastocyst stage. also, vitrification and thawing procedures were the same for all experimental groups. mouse different embr...

introduction: in the present study, the effects of oral morphine consumption in pregnant female rats on the amygdaloid complex development in the embryos were investigated. methods: female wistar rats weighing 250-300 g (n=15) were divided into control (n = 8) and experimental groups (n = 7). the experimental group received morphine (0.05 mg/ml) in their tap water. on the 19th day of pregnancy,...

abstract background: determination of transgenic embryos from non transgenic embryos sibling is an important step in producing homozygous transgenic mice. these steps need by pcr or southern blotting followed extraction of dna, but both techniques require skill and consume time. objective: the aim of this study was simulation of high accuracy method using novel enhanced green fluorescent protei...

Programs should create and enforce written policies addressing the designation, retention, disposal of unclaimed embryos. In absence program-specific policies, it is ethically permissible for a program or facility to consider embryos have been if reasonable period time has passed since contact with an individual couple; efforts as outlined in consent form made no instructions from couple dispos...

In the study, 6 donors (n=6) cow of Selenge (n=3) and Alatau breeds were selected for superovulation. Superovulation treatment artificial insemination (AI) Donor Cow Regardless estrous cycle, Insert Controlled Internal Drug Release (CIDR; Hamilton, New Zealand) to from 5th day after inserting CIDR, diminishing inject Follicle Stimulating Hormone (FSH; Kyoritsu Seiyaku Corporation, Japan.) 36IU ...

Background: Vitrification and warming of blastocysts is an established procedure for the preservation of embryos during IVF. Vitrification is so successful that it allows for elective single embryo transfer (eSET) to be performed routinely, since the frozen embryos will be available with high implantation potential if the fresh embryo fails. Comprehensive chromosome screening (CCS) is also a pr...