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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">medgen-320</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ СЛУЧАИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASE</subject></subj-group></article-categories><title-group><article-title>Анализ необычной морфологии хромосомы 21 хориона при неразвивающейся беременности</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of the unusual morphology of the chromosome 21 in chorion for the non-developing pregnancy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карамышева</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Karamysheva</surname><given-names>T. V.</given-names></name></name-alternatives><email xlink:type="simple">kary@bionet.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гайнер</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gayner</surname><given-names>T. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каримова</surname><given-names>О. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Karimova</surname><given-names>O. G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богомолов</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogomolov</surname><given-names>A. G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рубцов</surname><given-names>Н. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Rubtsov</surname><given-names>N. B.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «Cибирские хромосомные технологии»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian Chromosome Technology, Ltd</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт химической биологии и фундаментальной медицины Сибирского отделения Российской академии наук; ООО «Центр персонализированной медицины»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Chemical Biology and Fundamental Medicine; Center for Personalized Medicine, Ltd</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ООО «Cибирские хромосомные технологии»; ФГБНУ «Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук»; Новосибирский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian Chromosome Technology, Ltd; Institute of Cytology and Genetics; Novosibirsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>20</day><month>02</month><year>2018</year></pub-date><volume>16</volume><issue>8</issue><fpage>41</fpage><lpage>45</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Карамышева Т.В., Гайнер Т.А., Каримова О.Г., Богомолов А.Г., Рубцов Н.Б., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Карамышева Т.В., Гайнер Т.А., Каримова О.Г., Богомолов А.Г., Рубцов Н.Б.</copyright-holder><copyright-holder xml:lang="en">Karamysheva T.V., Gayner T.A., Karimova O.G., Bogomolov A.G., Rubtsov N.B.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.medgen-journal.ru/jour/article/view/320">https://www.medgen-journal.ru/jour/article/view/320</self-uri><abstract><p>Описан уникальный случай необычной морфологии одного из гомологов хромосомы 21. Первоначально хромосомная аберрация была выявлена стандартным методом GTG-дифференциального окрашивания, затем точно описана с помощью FISH анализа.</p></abstract><trans-abstract xml:lang="en"><p>A scientific study of the reasons of fetal losses is a crucial issue for infertility specialist and patients. According to Russian statistics, 45-88% of miscarriage is due to non-developing pregnancy, 11% of first pregnancies ends in a surgical abortion, the percent of miscarriage is 20%. One of the most common causes of miscarriage is the fetal chromosomal aberrations. This paper introduces a unique case of chromosome 21 with unusual morphology. The chromosomal aberration was firstly detected using GTG banding (G bands produced with trypsin and Giemsa) and then was precisely described with FISH analysis.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>«замершая» беременность</kwd><kwd>хорион</kwd><kwd>хромосома 21</kwd><kwd>кариотипирование</kwd><kwd>хромосомная патология</kwd><kwd>синдром Дауна</kwd><kwd>non-developing pregnancy</kwd><kwd>chorion</kwd><kwd>chromosome 21</kwd><kwd>karyotyping</kwd><kwd>chromosome aberrations</kwd><kwd>down syndrome</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Милованов АП, Серова АФ. Причины и дифференцированное лечение раннего невынашивания беременности (руководство для врачей). - М.: Изд-во Студия МДВ, 2011. - 216 с.</mixed-citation><mixed-citation xml:lang="en">Милованов АП, Серова АФ. 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