This paper considers embryo grading within a given infertility treatment and suggests an ethical approach to embryo donation for embryonic stem cell harvest. It is concluded that ethical considerations regarding human embryos do not necessarily preclude the use of certain embryos for biomedical research or transplantation. The argument is based on the following rationale: all embryos are not ph...

background: prolonged gnrh-a administration in ivf cycles may have some advantages related to the treatment outcomes. objective: in this study, we aimed to analyse the effect of prolonged gonadotropin releasing hormone agonist (gnrh-a) administration on controlled ovarian hyperstimulation outcomes of in vitro fertilization (ivf) patients. materials and methods: in this retrospective study, 55 p...

Embryo culture can serve as a strong diagnostic tool, yielding useful information regarding the implantation potential of the human embryo. The information thus gained is useful for quality control of the embryology laboratory, success rates of the IVF/intracytoplasmic sperm injection (ICSI) programme, and counselling of the couple following failed cycles. Zygotes can be scored and zygote quali...

OBJECTIVE The correlation of the embryo matrix metalloproteinase-9 (MMP-9) secretion, embryonic development and clinical pregnancy was investigated. MATERIALS AND METHODS The embryo culture from in vitro fertilization-embryo transfer (IVF-ET) patients were collected in the Xuzhou Central Hospital from January 2013 to September 2014. At the same time, the embryo grade was recorded. The secreti...

The aim of the present study was to determine the responses of Black Bengal Goat following synchronization with alfaprostol, superovulation with PMSG and embryo collection with surgical procedure. This research work was carried out at the Department of Surgery and Obstetrics, Bangladesh Agricultural University (BAU) during the period from January to December 2001. Three Flushing schedules have ...

STUDY QUESTION Does the quality of a single transferred embryo have an effect on the pregnancy outcome? SUMMARY ANSWER After adjusting for confounding maternal variables, poor embryo quality was not associated with adverse obstetric or perinatal outcome in this small pilot study. WHAT IS ALREADY KNOWN Embryo quality is a major predictor of the success of in vitro fertilization treatment and...

Abstract Study question How does the embryo morphological grade and day of vitrification affect FET outcomes from in vitro fertilization cycles utilizing preimplantation genetic testing for aneuploidy (PGT-A)? Summary answer The a transferred affects age groups differently, Day-5 embryos have significantly better pregnancy than Day-6 embryos. What is known already use PGT-A has shown to increas...

The aim of this study was to find some relationship between amino acid metabolism and the embryo morphokinetic parameters studied via time-lapse analysis. Study included 48 human embryo samples and their culture media. Two groups of embryos were identified: embryos reached the 8-cell stage on day 3 (n=34) and embryos failed to develop at any point during the incubation (n=14). Amino acids level...