"Human development begins after the union of male and female gametes or germ cells during a process known as fertilization (conception). Decker Inc, 1988, p.2] "Embryo: the developing organism from the time of fertilization until significant differentiation has occurred, when the organism becomes known as a fetus." [Cloning Human Beings. 146] "Embryo: The early developing fertilized egg that is growing into another individual of the species. 160] "The development of a human being begins with fertilization, a process by which two highly specialized cells, the spermatozoon from the male and the oocyte from the female, unite to give rise to a new organism, the zygote." [Langman, Jan. The term embryo covers the several stages of early development from conception to the ninth or tenth week of life." [Considine, Douglas (ed.). 31] "The development of a human begins with fertilization, a process by which the spermatozoon from the male and the oocyte from the female unite to give rise to a new organism, the zygote." [Sadler, T. zyg tos, yoked together), represents the beginning of a human being. 'Don't worry,' a doctor might say, 'it's only pre-embryos that we're manipulating or freezing."Fertilization is a sequence of events that begins with the contact of a sperm (spermatozoon) with a secondary oocyte (ovum) and ends with the fusion of their pronuclei (the haploid nuclei of the sperm and ovum) and the mingling of their chromosomes to form a new cell. Report and Recommendations of the National Bioethics Advisory Commission. In man the term 'embryo' is usually restricted to the period of development from fertilization until the end of the eighth week of pregnancy." [Walters, William and Singer, Peter (eds.). The common expression 'fertilized ovum' refers to the zygote." [Moore, Keith L. They won't turn into real human embryos until after we've put them back into your body.'" [Silver, Lee M.CPR in the intervention group was significantly higher in the patient group that had undergone ovarian stimulation with a long agonist protocol rather than the antagonist protocol (73.8% vs. In the multivariable logistic regression model, previously failed in vitro fertilization (IVF) (odds ratio (OR) = 0.07, 95% confidence interval (CI) 0.01–0.47), stimulation with the long agonist protocol (OR = 19.89, 95% CI 3.57–18.63), antagonist protocol (OR = 0.05, 95% CI 0.01–0.34), number of embryos (OR = 1.37, 95% CI 1.05–1.38), and number of blastocysts (OR = 2.96, 95% CI 1.43–8.36) remained important independent prognostic factors for clinical pregnancy.
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Many factors are now being studied to improve the implantation rate, one being [...] Read more.
Many factors are now being studied to improve the implantation rate, one being endometrial artificial injury (endometrial scratching).
By gathering our knowledge together, we aim to gain further common insights into the issues facing this field. Once you are registered, click here to go to the submission form. Research articles, review articles as well as short communications are invited.
For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.Women who were undergoing in vitro fertilization treatment were enrolled in the study.Medical data including demographic factors, menstrual history, and anamnesis of infertility were collected from medical records.Background and Objectives: Assisted reproductive techniques today have helped many infertile couples achieve their desired pregnancy.However, unsuccessful implantation is usually the key failure in in vitro fertilization cycles.Moreover, the field of clinical embryology and reproductive medicine covers bioethical issues, since embryology involves gametes and embryos at the pre-implantation stages.Please consider contributing to this important area of study by submitting an article to this Special Issue on the state-of-the-art research on clinical embryology and reproductive medicine currently underway. George Anifandis Manuscript Submission Information Manuscripts should be submitted online at com by registering and logging in to this website. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website.The purpose of this study was to assess whether local endometrial artificial injury improved pregnancy rate, in long agonist and antagonist protocols.Materials and Methods: A retrospective analysis was carried out at the JSC Baltic American Clinic from January 1, 2016 to December 31, 2018.Department of Obstetrics and Gynecology, School of Health Sciences, University of Thessaly Larisa, Greece Interests: clinical embryology; cryopreservation/vitrification; sperm, IVF/ICSI, molecular embryology Dear Colleagues, Clinical embryology covers the field of embryology in assisted reproductive techniques and involves sperm preparation and analysis, IVF/ICSI insemination procedures, the evaluation of the produced embryos either morphologically or with the help of advanced processes such as time-lapse imaging, metabolomics, the measurement of mi RNAs with computational methods, the vitrification and thawing of gametes and embryos, and other aspects such as the quality control and assurance of laboratories.Today there is a need to assess the quality of transferred embryos, while the stimulation protocols used for the production of the best quality oocytes and subsequent embryos have been optimized according to each patient.