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Comparative cytogenetics of anembryonic pregnancies and missed abortions in human ; Сравнительная цитогенетика анэмбрионии и неразвивающейся беременности у человека

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العنوان: Comparative cytogenetics of anembryonic pregnancies and missed abortions in human ; Сравнительная цитогенетика анэмбрионии и неразвивающейся беременности у человека
المؤلفون: T. V. Nikitina, E. A. Sazhenova, E. N. Tolmacheva, N. N. Sukhanova, S. A. Vasilyev, I. N. Lebedev, Т. В. Никитина, Е. А. Саженова, Е. Н. Толмачева, Н. Н. Суханова, С. А. Васильев, И. Н. Лебедев
المساهمون: The study was carried out as part of the state assignment No. 122020300041-7.
المصدر: Vavilov Journal of Genetics and Breeding; Том 27, № 1 (2023); 28-35 ; Вавиловский журнал генетики и селекции; Том 27, № 1 (2023); 28-35 ; 2500-3259 ; 2500-0462 ; 10.18699/VJGB-23-01
بيانات النشر: Institute of Cytology and Genetics of Siberian Branch of the RAS
سنة النشر: 2023
المجموعة: Vavilov Journal of Genetics and Breeding / Вавиловский журнал генетики и селекции
مصطلحات موضوعية: тетраплоидия, missed abortion, miscarriage, karyotype, chromosomal abnormalities, sex chromosomes, triploidy, tetraploidy, неразвивающаяся беременность, невынашивание беременности, кариотип, хромосомные аномалии, половые хромосомы, триплоидия
الوصف: Miscarriage is an important problem in human reproduction, affecting 10–15 % of clinically recognized pregnancies. The cases of embryonic death can be divided into missed abortion (MA), for which the ultrasound sign of the embryo death is the absence of cardiac activity, and anembryonic pregnancy (AP) without an embryo in the gestational sac. The aim of this study was to compare the frequency of chromosomal abnormalities in extraembryonic tissues detected by conventional cytogenetic analysis of spontaneous abortions depending on the presence or absence of an embryo. This is a retrospective study of 1551 spontaneous abortions analyzed using GTG-banding from 1990 to 2022 (266 cases of AP and 1285 cases of MA). A comparative analysis of the frequency of chromosomal abnormalities and the distribution of karyotype frequencies depending on the presence of an embryo in the gestational sac was carried out. Statistical analysis was performed using a chi-square test with a p < 0.05 significance level. The total frequency of chromosomal abnormalities in the study was 53.6 % (832/1551). The proportion of abnormal karyotypes in the AP and MA groups did not differ significantly and amounted to 57.1 % (152/266) and 52.9 % (680/1285) for AP and MA, respectively (p = 0.209). Sex chromosome aneuploidies and triploidies were significantly less common in the AP group than in the MA group (2.3 % (6/266) vs 6.8 % (88/1285), p = 0.005 and 4.9 % (13/266) vs 8.9 % (114/1285), p = 0.031, respectively). Tetraploidies were registered more frequently in AP compared to MA (12.4 % (33/266) vs. 8.2 % (106/1285), p = 0.031). The sex ratio among abortions with a normal karyotype was 0.54 and 0.74 for AP and MA, respectively. Thus, although the frequencies of some types of chromosomal pathology differ between AP and MA, the total frequency of chromosomal abnormalities in AP is not increased compared to MA, which indicates the need to search for the causes of AP at other levels of the genome organization, including microstructural chromosomal ...
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اللغة: English
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DOI: 10.18699/VJGB-23-05
الاتاحة: https://vavilov.elpub.ru/jour/article/view/3629
https://doi.org/10.18699/VJGB-23-05
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Array ( [Name] => Abstract [Label] => Description [Group] => Ab [Data] => Miscarriage is an important problem in human reproduction, affecting 10–15 % of clinically recognized pregnancies. The cases of embryonic death can be divided into missed abortion (MA), for which the ultrasound sign of the embryo death is the absence of cardiac activity, and anembryonic pregnancy (AP) without an embryo in the gestational sac. The aim of this study was to compare the frequency of chromosomal abnormalities in extraembryonic tissues detected by conventional cytogenetic analysis of spontaneous abortions depending on the presence or absence of an embryo. This is a retrospective study of 1551 spontaneous abortions analyzed using GTG-banding from 1990 to 2022 (266 cases of AP and 1285 cases of MA). A comparative analysis of the frequency of chromosomal abnormalities and the distribution of karyotype frequencies depending on the presence of an embryo in the gestational sac was carried out. Statistical analysis was performed using a chi-square test with a p &lt; 0.05 significance level. The total frequency of chromosomal abnormalities in the study was 53.6 % (832/1551). The proportion of abnormal karyotypes in the AP and MA groups did not differ significantly and amounted to 57.1 % (152/266) and 52.9 % (680/1285) for AP and MA, respectively (p = 0.209). Sex chromosome aneuploidies and triploidies were significantly less common in the AP group than in the MA group (2.3 % (6/266) vs 6.8 % (88/1285), p = 0.005 and 4.9 % (13/266) vs 8.9 % (114/1285), p = 0.031, respectively). Tetraploidies were registered more frequently in AP compared to MA (12.4 % (33/266) vs. 8.2 % (106/1285), p = 0.031). The sex ratio among abortions with a normal karyotype was 0.54 and 0.74 for AP and MA, respectively. Thus, although the frequencies of some types of chromosomal pathology differ between AP and MA, the total frequency of chromosomal abnormalities in AP is not increased compared to MA, which indicates the need to search for the causes of AP at other levels of the genome organization, including microstructural chromosomal ... )
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Array ( [Name] => Copyright [Label] => Rights [Group] => Cpyrght [Data] => Authors who publish their articles in this journal give their consent to the following:Authors reserve their rights and vest the journal with the authority to make the first publication of their manuscripts, which would automatically be licensed upon the expiry of 6 months after publication subject to the terms of Creative Commons Attribution License; the latter will allow anyone to disseminate the article in question, with mandatory preservation of references to the authors of the original article and to its first publication in this journal.Authors may display their articles on the Internet (for example, in the Institute’s data warehouse or on a personal website) prior to or during the process of their consideration by this journal, as it may lead to a more productive discussion and expand the number of references to the article in question (see The Effect of Open Access). ; Авторы, публикующие статьи в данном журнале, соглашаются на следующее:Авторы сохраняют за собой авторские права и предоставляют журналу право первой публикации работы, которая по истечении 6 месяцев после публикации автоматически лицензируется на условиях Creative Commons Attribution License , которая позволяет другим распространять данную работу с обязательным сохранением ссылок на авторов оригинальной работы и оригинальную публикацию в этом журнале.Авторы имеют право размещать свою работу в сети Интернет (например в институтском хранилище или персональном сайте) до и во время процесса рассмотрения ее данным журналом, так как это может привести к продуктивному обсуждению и большему количеству ссылок на данную работу (См. The Effect of Open Access). )
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