scholarly journals DYSMORPHISMS OF OOCYTES IN ART PROCEDURES. LITERATURE REVIEW

2021 ◽  
pp. 63-70
Author(s):  
G.M. Karibayeva ◽  
S.I. Tevkin ◽  
T.M. Jussubaliyeva ◽  
M.S. Shishimorova

Currentliterature review presents the analysis of results of studies of morphological qualities and anomalies (dysmorphisms) of human oocytes in the field of assisted reproductive technologies. The variety of intracytoplasmic anomalies encountered in the clinical practice of in vitro fertilization, their effect on fertilization, cleavage, implantation frequency, clinical pregnancy rate were described. Moreover, the morphological characteristics of oocyte could be considered to use as biomarkers in predicting the quality of embryos and blastocysts, and further implantation potential.

Author(s):  
N.A. Altinnik , S.S. Zenin , V.V. Komarova et all

The article discusses the factors that determine the content of the legal limitations of pre-implantation genetic diagnosis in the framework of the in vitro fertilization procedure, taking into account international experience and modern domestic regulatory legal regulation of the field of assisted reproductive technologies. The authors substantiates the conclusion that it is necessary to legislate a list of medical indications for preimplantation genetic diagnosis, as well as the categories of hereditary or other genetic diseases diagnosed in the framework of this procedure.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sandra Monfort ◽  
Carmen Orellana ◽  
Silvestre Oltra ◽  
Mónica Rosello ◽  
Alfonso Caro-Llopis ◽  
...  

AbstractDevelopment of assisted reproductive technologies to address infertility has favored the birth of many children in the last years. The majority of children born with these treatments are healthy, but some concerns remain on the safety of these medical procedures. We have retrospectively analyzed both the fertilization method and the microarray results in all those children born between 2010 and 2019 with multiple congenital anomalies, developmental delay and/or autistic spectrum disorder (n = 486) referred for array study in our center. This analysis showed a significant excess of pathogenic copy number variants among those patients conceived after in vitro fertilization with donor oocyte with respect to those patients conceived by natural fertilization (p = 0.0001). On the other hand, no significant excess of pathogenic copy number variants was observed among patients born by autologous oocyte in vitro fertilization. Further studies are necessary to confirm these results and in order to identify the factors that may contribute to an increased risk of genomic rearrangements, as well as consider the screening for genomic alterations after oocyte donation in prenatal diagnosis.


2020 ◽  
pp. 13-19
Author(s):  
L. Chalova ◽  
V. Lokshin ◽  
A. Guseva ◽  
A. Kinzhibayev

This world literature review tries to determine the significance of the gamete donation in the field of assisted reproductive technologies as well as the availability of treatment methods using donation in in vitro fertilization programs. Gamete donation is regulated by every country's national legislation system, and quite often the laws vary between the states. There are practically no universal standards and/or rules in this area, which, in turn, leads to an ambivalent reaction towards reproductive practices.


Author(s):  
Marcia C. Inhorn

Assisted reproductive technologies, such as in vitro fertilization, have made their way to the Middle Eastern nation states. However, in the Sunni-dominant countries, third-party donation of sperm, eggs, embryos, and uteruses (as in surrogacy) is banned, leading some Sunni Muslim couples to travel to Iran and Lebanon, where Shia Muslim clergy have allowed donor technologies.


Author(s):  
A.A. Fil ◽  
◽  
E.L. Sorokin ◽  
O.V. Kolenko ◽  
◽  
...  

A review of the literature data is presented, which indicates the possible influence of assisted reproductive technologies (ART) on the formation of both systemic and retinal vascular pathology. Despite the fact that the overall incidence of thromboembolic complications as a result of the use of ART is low, nevertheless, in women included in the in vitro fertilization program, their risk increases by 10 times. Therefore, due to the adverse effect of these drugs on the hemostatic system of a woman, ophthalmologists should be more wary of them in order to detect vascular retinal pathology in a timely manner. Key words: assisted reproductive technologies, in vitro fertilization, hyperestrogenism, vascular retinal pathology.


2020 ◽  
Vol 69 (4) ◽  
pp. 83-88
Author(s):  
Svetlana S. Paskar ◽  
Alla S. Kalugina ◽  
Anna G. Tkachuk

The expansion of indications for assisted reproductive technology has led to significant implications for assisted reproductive technology (ART) programs worldwide. More than 7 million children in the world were born using ART. Modern clinical practice in the field of reproductive sciences is aimed not only at increasing the effectiveness, but also at the safety of treatment. ART, like any other type of therapy, may be combined with negative side effects. Both the correct prediction of the risks associated with treatment and a personalized approach ensure the absolute safety of infertility treatment using in vitro fertilization. In this regard, over the past decade, a number of new research approaches have been noted that use ART methods integrated into clinical practice: cycle segmentation with subsequent embryo transfer and the elective transfer of one embryo. New approaches provide a control in relation to ovarian stimulation and a reduction in the number of transferred embryos, which helps to minimize primarily adverse perinatal outcomes. Predicting the risks and outcomes of treatment using mathematical modeling is the application of good clinical practice.


2016 ◽  
Vol 94 (1) ◽  
pp. 10-15
Author(s):  
Kristina S. Ermolenko ◽  
V. E. Radzinsky ◽  
S. I. Rapoport

Biological potential of childbearing in the women of late reproductive age is limited by natural impairment and loss of fertility. Despite a considerable progress in clinical application of new diagnostic and reproductive technologies, the problem of infertility remains a most serious challenge. Women’s age is one of the main factors responsible for the outcome of in vitro fertilization. The low effectiveness of in vitro fertilization programs is attributed to discoordination in the hypothalamic-pituitary system, depletion of ovarian resources, and deterioration of quality of reproductive material. Bearing in mind the role of melatonin in synchronizing circadian and seasonal biorhythms and regulating physiological and pathological processes, it is natural to suggest its role in the enhancement of efficiency of in vitro fertilization programs for women of late reproductive age.


Sign in / Sign up

Export Citation Format

Share Document