Results 21 to 30 of about 104,856 (314)
Paternal factors contributing to embryo quality [PDF]
Advancing maternal and paternal age leads to a decrease in fertility, and hence, many infertile couples opt for assisted reproductive technologies [ART] to achieve biological parenthood. One of the key determinants of achieving a live outcome of ART, embryo quality, depends on both the quality of the oocyte and sperm that have created the embryo ...
Stacy, Colaco, Denny, Sakkas
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Introduction. Infertility, i.e. the inability to achieve a clinical pregnancy within 12 months of a regular sexual life without contraception, is a current medical problem and affects up to 15-25% of married couples in Western countries.Objective.
A. G. Syrkasheva, N. V. Dolgushina
doaj +1 more source
The importance of cytoplasmic strings during early human embryonic development
Objectives: During human in vitro fertilisation (IVF) treatments, embryologists attempt to select the most viable embryos for embryo transfer (ET). Previously, embryos were evaluated based on light microscopic morphological parameters.
Kata Joo +6 more
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Epigenetics, embryo quality and developmental potential [PDF]
It is very important for embryologists to understand how parental inherited genomes are reprogrammed after fertilisation in order to obtain good-quality embryos that will sustain further development. In mammals, it is now well established that important epigenetic modifications occur after fertilisation.
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ObjectiveThe single-embryo transfer (SET) is the recommended approach to improve the live birth rate and reduce the complications related with multiple pregnancies.
Qianqian Zhu +5 more
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Predicting embryo quality: mRNA expression and the preimplantation embryo
To overcome the low implantation rate (10-20%) following IVF in humans, more than two embryos are commonly replaced, potentially leading to high order multiple pregnancies with associated significantly elevated risks. Selecting the most viable embryos and transferring fewer of them could reduce this risk.
Deirdre, Corcoran +2 more
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BackgroundIt is highly desirable to develop new strategies based on secretomics to more accurately selection of embryos with the highest developmental potential for transfer.
Peilin Chen +11 more
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Cell-free DNA fragments detected in blood and in other biological fluids are released from apoptotic/necrotic cells. In this study, we analyzed cfDNA levels in follicular fluid (FF) samples from patients with infertility.
Maria Manuel Casteleiro Alves +6 more
doaj +1 more source
Association between Number of Formed Embryos, Embryo Morphology and Clinical Pregnancy Rate after Intracytoplasmic Sperm Injection [PDF]
Introduction Infertility has a high prevalence in the general population, affecting 5 to 15% of couples in reproductive age. The assisted reproduction techniques ( ART ) include in vitro manipulation of gametes and embryos and are an important treatment
Caroline Mantovani da Luz +5 more
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Fertilization signatures as biomarkers of embryo quality
Abstract Fertilization underpins the vital transition from gametic meiosis to embryonic mitosis. For decades, in human IVF, microscopic observation at a single time point has limited our appreciation of the morphokinetic complexity of this process. More recently, the introduction of time lapse technology—also enhanced by combination with
Giovanni Coticchio +4 more
openaire +2 more sources

