PubMed Journals Articles About "Afterloading Embryo Transfer Procedure Direct Embryo Transfer Procedure" RSS

22:52 EDT 18th March 2018 | BioPortfolio

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Showing "Afterloading embryo transfer procedure Direct embryo transfer procedure" PubMed Articles 1–25 of 12,000+

Impact of transfer time on pregnancy outcomes in frozen-embryo transfer cycles.

To identify the impact of embryo transfer time (total seconds from the loading of the transfer catheter to the expulsion of the embryo(s) into the uterine cavity) on clinical pregnancy (CPR), implantation (IR), and live birth (LBR) rates.

Transfer of Fresh versus Frozen Embryos in Ovulatory Women.

Elective frozen-embryo transfer has been shown to result in a higher live-birth rate than fresh-embryo transfer among anovulatory women with the polycystic ovary syndrome. It is uncertain whether frozen-embryo transfer increases live-birth rates among ovulatory women with infertility.

Morphological embryo selection: an elective single embryo transfer proposal.

To describe a patient selection method for elective single embryo transfer (eSET), emphasizing inclusion criteria and results.

Noninvasive embryo assessment technique based on buoyancy and its association with embryo survival after cryopreservation.

Embryo cryopreservation offers many benefits by allowing genetic preservation, genetic screening, cost reduction, global embryo transport and single embryo transfer. However, freezing of embryos decreases embryo viability, as intracellular ice crystal formation often damages embryos. Success rates of frozen embryo transfer are expected to be 15-20% less than fresh embryo transfer. We have developed a noninvasive embryo assessment technique (NEAT) which enables us to predict embryo viability based on buoyanc...

Somatic cell count and type of intramammary infection impacts fertility from in vitro produced embryo transfer.

The objective of this study was to assess the impact of mastitis-causing bacteria and somatic cell count (SCC) on pregnancy per embryo transfer (P/ET) in Holstein-Gir crossbred (Girolando) lactating dairy cows. Cows (n = 1397) were subjected to a timed-embryo transfer protocol. Milk samples were collected two days before embryo transfer for SCC and bacteriological culture analyses. Pregnancy diagnosis was performed on days 31 and 66 after timed-embryo transfer. The animals were grouped according to the ...

Likelihood of pregnancy after embryo transfer is reduced in recipient mares with a short preceding oestrus.

Previous surveys reported a positive association between the length of the follicular phase and subsequent fertility in embryo transfer donor and Thoroughbred mares. However, it is unclear whether a longer oestrus positively influences fertilisation and oviductal development (oocyte quality, oviductal environment), or uterine receptivity and survival of the embryo in the uterus.

Does cryopreservation influence perinatal outcome after blastocyst-stage vs cleavage-stage transfer? A systematic review and meta-analysis.

To compare the perinatal outcomes of singleton pregnancies between blastocyst and cleavage embryo transfer and to assess whether this differs between fresh and frozen embryo transfer cycles.

Flunixin meglumine improves pregnancy rate in embryo recipient beef cows with an excitable temperament.

Objectives were to determine effects of: 1) handling temperament and administration of flunixin meglumine, an inhibitor of prostaglandin F2a (PGF2a) synthesis, given at the time of embryo transfer, on pregnancy rates in beef cattle embryo transfer recipients; 2) handling temperament and flunixin meglumine on peripheral concentrations of progesterone, cortisol, substance-P, prostaglandin F metabolites (PGFM, (13,14-dihydro-15-keto-PGF2a) and isoprostane 8-epi PGF2a; and 3) flunixin meglumine treatment on pro...

Frozen embryo transfer: a review on the optimal endometrial preparation and timing.

What is the optimal endometrial preparation protocol for a frozen embryo transfer (FET)?

Thawed embryo transfer and ectopic pregnancy: a meta-analysis.

To examine whether thawed embryo transfers can reduce the rate of EP.

Anxiety and its inducing factors in men undergoing in vitro fertilization and embryo transfer.

To explore the prevalence of anxiety and its inducing factors in men undergoing in vitro fertilization and embryo transfer (IVF-ET).

Effect of air bubbles localization and migration after embryo transfer on assisted reproductive technology outcome.

To evaluate the effect of embryo flash position and movement of the air bubbles at 1 and 60 minutes after ET on clinical pregnancy rates (PRs).

Factors and molecules that could impact cell differentiation in the embryo generated by nuclear transfer.

Somatic cell nuclear transfer is a technique to create an embryo using an enucleated oocyte and a donor nucleus. Nucleus of somatic cells must be reprogrammed in order to participate in normal development within an enucleated egg. Reprogramming refers to the erasing and remodeling of cellular epigenetic marks to a lower differentiation state. Somatic nuclei must be reprogrammed by factors in the oocyte cytoplasm to a rather totipotent state since the reconstructed embryo must initiate embryo development fro...

Relationship between mitochondrial DNA copy number, membrane potential of human embryo and embryo morphology.

Objective: To explore the relationship between the embryo with the different morphological types in the third day and its mitochondrial copy number, the membrane potential. Methods: Totally 117 embryos with poor development after normal fertilization and were not suitable transferred in the fresh cycle and 106 frozen embryos that were discarded voluntarily by infertility patients with in vitro fertilization-embryo transfer after successful pregnancy were selected. According to evaluation of international st...

Effect of maternal hypoglycaemia during gestation on materno-foetal nutrient transfer and embryo-foetal development: Evidence from experimental studies focused primarily on the rat.

Glucose is the major energy substrate during embryogenesis and the embryo is dependent on glucose from the maternal circulation to ensure normal metabolism and growth. The placenta plays a key role in this nutrient transfer in mammals, both during embryogenesis and after the development of the chorio-allantoic placental circulation. Maternal hypoglycaemia is accompanied by foetal hypoglycaemia and maternal counter-regulatory measures include a priority to nutrients in the maternal circulation by restricting...

IVF Transfer of Fresh or Frozen Embryos in Women without Polycystic Ovaries.

Among women who are undergoing in vitro fertilization (IVF), the transfer of frozen embryos has been shown to result in a higher rate of live birth than the transfer of fresh embryos in those with infertility associated with the polycystic ovary syndrome. It is not known whether frozen-embryo transfer results in similar benefit in women with infertility that is not associated with the polycystic ovary syndrome.

The Effects of Adjuvant Therapies on Embryo Transfer Success.

Many adjuvant therapies are employed during IVF treatment in an attempt to improve outcomes. The objective of our study was to evaluate the impact of thirteen adjuvants (Intralipid, steroids, melatonin, coenzyme Q10, Filgrastim, testosterone, DHEA, growth hormone, antibiotics, hCG infusion, aspirin, enoxaparin/heparin and dopamine agonists) on the success of embryo transfers.

Birthweight of singletons born after cleavage-stage or blastocyst transfer in fresh and warming cycles.

Does extended culture to the blastocyst stage affect singleton birthweight after either fresh or vitrified-warmed embryo transfer?

Fresh versus Frozen Embryo Transfer in PCOS: Arguments for and Against.

Embryo Implantation: War in times of love.

Contrary to widespread belief, the implantation of an embryo for the initiation of pregnancy is like a battle, in that the embryo uses a variety of coercive tactics to force its acceptance by the endometrium. We propose that embryo implantation involves a three step process: 1) identification of a receptive endometrium; 2) superimposition of a blastocyst-derived signature onto the receptive endometrium prior to implantation; and finally 3) breaching by the embryo and trophoblast invasion, culminating in dec...

Infertility treatment strategy involving combined freeze-all embryos and single vitrified-warmed embryo transfer during hormonal replacement cycle for in vitro fertilization of women with hypogonadotropic hypogonadism.

Hypogonadotropic hypogonadism (HH) is a condition caused by the deficient secretion of pituitary gonadotropins, leading to diminished ovarian function. Several studies of in vitro fertilization (IVF) in women with HH revealed acceptable clinical pregnancy outcomes but high multiple pregnancy rates after multiple fresh embryo transfer (ET). The purpose of this study was to analyze the outcomes of combined freeze-all embryos and single vitrified-warmed ET in women with HH.

Pre-conception maternal erythrocyte saturated to unsaturated fatty acid ratio predicts pregnancy after natural cycle frozen embryo transfer.

The environment for embryo implantation and fetal growth and development is affected by maternal nutritional, metabolic and health status. The aim of this prospective, cohort study was to test whether plasma metabolic and inflammatory biomarkers can predict pregnancy resulting from in vitro fertilisation (IVF). Women with a natural menstrual cycle undergoing frozen embryo transfer (FET) were recruited and fasting baseline blood samples were collected a mean of 3.4 days prior to the luteinising hormone (LH) ...

Treatment of recurrent anterior shoulder instability with the Latarjet or Bristow procedure in older patients.

The coracoid transfer procedure is commonly and successfully used to treat shoulder instability in young patients. However, there is concern that the outcome of this procedure might be inferior in older patients because of decreased bone graft quality and the potential concomitant presence of irreparable rotator cuff tears (RCTs).

The effect of repeated light-dark shifts on uterine receptivity and early gestation in mice undergoing embryo transfer.

Female shift workers are at increased risk for negative reproductive outcomes, and animal evidence suggests that manipulation of the light-dark cycle is detrimental to early gestation in female mice. Specifically, failure of implantation may be responsible for these findings. The objective of this study was to better delineate which reproductive processes are vulnerable to detrimental effects of maternal circadian disturbance. We exposed mice undergoing embryo transfer to repetitive phase advances of the ph...

Fate of egg proteins during the development of Columba livia domestica embryo.

The transfer of egg white into the yolk and consumption of yolk proteins by the embryo are largely unexplored in the pigeon Columba livia domestica. Here, we investigated the route of egg white transfer as well as the degradation and uptake of yolk proteins by the pigeon embryo. Initially, we tested the electrophoretic patterns of proteins in different egg compartments throughout development. Then, we used lysozyme as a reference protein to follow the egg white transfer, and we measured its activity using M...

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