Results 31 to 40 of about 37,859 (284)
Dynamics of 5-methylcytosine and 5-hydroxymethylcytosine during pronuclear development in equine zygotes produced by ICSI [PDF]
, 2017 Background: Global epigenetic reprogramming is considered to be essential during embryo development to establish totipotency. In the classic model first described in the mouse, the genome-wide DNA demethylation is asymmetric between the paternal and the ...
De Schauwer, Catharina +3 more
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Fertility & Reproduction, 2023 Background and Aims: Embryo aneuploidy is caused by many factors, including patient age, sperm quality and sperm selection method. There are several methods for selecting sperm, ICSI (intracytoplasmic sperm injection) and IMSI (intracytoplasmic ...
Reza Raharjo +3 more
doaj +1 more source
Sperm retrieval techniques in azoospermic patients: PESA, MESA, TESA, TESE and MICROTESE [PDF]
Einstein (São Paulo), 2009 Azoospermia is defined as the absence of mature spermatozoa in semen analysis after centrifugation. The causes of azoospermia may be related to spermatogenesis defects and classified as non-obstructive azoospermia, or to the obstruction of the efferent ...
Marcelo Vieira, Sidney Glina
doaj
SVU - International Journal of Medical Sciences, 2022 Background: Mild(soft, minimal) protocols have been proposed as an alternative to the classical protocols , a controlled ovarian stimulation is defined as “soft” either when (a) Gonadotrophins (Gn) are given at a lower dose and/or for a short period ...
Abd El-Naser Abd El-Gaber Ali +3 more
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Intracytoplasmic sperm injection in Scandinavia [PDF]
Human Reproduction, 1996 Several Scandinavian clinics are now practising intracytoplasmic sperm injection (ICSI), and our data largely resemble that published from the Brussels group (Van Steirteghem et ai., 1993). In recent meetings, Scandinavian workers have come to some mutual decisions: (i) not more than two embryos will be replaced; (ii) recombinant follicle stimulating ...
openaire +3 more sources
Gene therapy:the potential applicability of gene transfer technology to the human germline [PDF]
, 2004 The theoretical possibility of applying gene transfer methodologies to the human germline is explored. Transgenic methods for genetically manipulating embryos may in principle be applied to humans.
Smith, Kevin R.
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Kufa Journal for Nursing Sciences, 2014 Objectives: Studying some Factors Affecting pregnancy outcome in subfertile couples subjected to intracytoplasmic sperm injection. Methodology: study performed in fertility center in Al-Sadder teaching hospital in Al-Najaf city during the period ...
Aseel Jassim Al-Bderi +2 more
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IMSI—Guidelines for Sperm Quality Assessment
Diagnostics, 2022 Intracytoplasmic sperm injection (ICSI) is a widely used and accepted treatment of choice for oocyte fertilization. However, the quality of sperm selection depends on the accurate visualization of the morphology, which can be achieved with a high image ...
Krzysztof Lukaszuk +8 more
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Automated Sperm Immobilization for Intracytoplasmic Sperm Injection [PDF]
IEEE Transactions on Biomedical Engineering, 2011 Sperm immobilization is a requisite step in intracytoplasmic sperm injection (ICSI). Conventionally, sperm immobilization is performed manually, which entails long training hours and stringent skills. Manual sperm immobilization also has the limitation of low success rates and poor reproducibility due to human fatigue and skill variations across ...
Clement H. C. Leung +4 more
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Automatic segmentation of intracytoplasmic sperm injection images
Компьютерная оптика, 2022 In this paper, a multiclass image semantic segmentation problem was solved. For analysis, images of the intracytoplasmic sperm injection process were used. For training the neural network, 656 frames were manually labelled. As a result, each pixel of the
V.Y. Kovalev, A.G. Shishkin
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