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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">vavilov</journal-id><journal-title-group><journal-title xml:lang="ru">Вавиловский журнал генетики и селекции</journal-title><trans-title-group xml:lang="en"><trans-title>Vavilov Journal of Genetics and Breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-3259</issn><publisher><publisher-name>Institute of Cytology and Genetics of Siberian Branch of the RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/VJ19.489</article-id><article-id custom-type="elpub" pub-id-type="custom">vavilov-1943</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>БИОТЕХНОЛОГИЯ В ПОСТГЕНОМНУЮ ЭРУ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICAL GENETICS</subject></subj-group></article-categories><title-group><article-title>Районы гомозиготности в тканях абортусов из семей  с привычным невынашиванием беременности</article-title><trans-title-group xml:lang="en"><trans-title>Runs of homozygosity in spontaneous abortions  from families with recurrent pregnancy loss</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2491-3141</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Скрябин</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Skryabin</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Томск.</p></bio><bio xml:lang="en"><p>Tomsk.</p></bio><email xlink:type="simple">nikolay.skryabin@medgenetics.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5301-070X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васильев</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasilyev</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Томск.</p></bio><bio xml:lang="en"><p>Tomsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4230-6855</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитина</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitina</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Томск.</p></bio><bio xml:lang="en"><p>Tomsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2800-8875</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жигалина</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhigalina</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Томск.</p></bio><bio xml:lang="en"><p>Tomsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3839-3543</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савченко</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Savchenko</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Томск.</p></bio><bio xml:lang="en"><p>Tomsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6133-8986</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бабушкина</surname><given-names>Н. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Babushkina</surname><given-names>N. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Томск.</p></bio><bio xml:lang="en"><p>Tomsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7051-3472</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лопаткина</surname><given-names>М. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Lopatkina</surname><given-names>M. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Томск.</p></bio><bio xml:lang="en"><p>Tomsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0716-4302</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кашеварова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kashevarova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Томск.</p></bio><bio xml:lang="en"><p>Tomsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0482-8046</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедев</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedev</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Томск.</p></bio><bio xml:lang="en"><p>Tomsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Научно-исследовательский институт медицинской генетики, Томский национальный исследовательский медицинский центр  Российской академии наук.<country>Россия</country></aff><aff xml:lang="en">Research Institute of Medical Genetics, Tomsk National Research Medical Center, RAS.<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2019</year></pub-date><volume>23</volume><issue>2</issue><fpage>244</fpage><lpage>249</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Скрябин Н.А., Васильев С.А., Никитина Т.В., Жигалина Д.И., Савченко Р.Р., Бабушкина Н.П., Лопаткина М.Е., Кашеварова А.А., Лебедев И.Н., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Скрябин Н.А., Васильев С.А., Никитина Т.В., Жигалина Д.И., Савченко Р.Р., Бабушкина Н.П., Лопаткина М.Е., Кашеварова А.А., Лебедев И.Н.</copyright-holder><copyright-holder xml:lang="en">Skryabin N.A., Vasilyev S.A., Nikitina T.V., Zhigalina D.I., Savchenko R.R., Babushkina N.P., Lopatkina M.E., Kashevarova A.A., Lebedev I.N.</copyright-holder><license 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://vavilov.elpub.ru/jour/article/view/1943">https://vavilov.elpub.ru/jour/article/view/1943</self-uri><abstract><p>Привычное невынашивание беременности является тяжелой репродуктивной патологией, при этом почти в половине случаев его этиология остается невыясненной. В настоящей работе проведено исследование протяженных гомозиготных районов (runs of homozygosity – ROH) в геноме как возможного этиологического фактора в развитии привычного невынашивания беременности. Всего проанализировано 22 парных абортуса первого триместра беременности от 11 женщин с привычным невынашиванием беременности. У всех абортусов был нормальный кариотип по результатам метафазного кариотипирования и сравнительной геномной гибридизации на метафазных пластинках. Для поиска гомозиготных регионов были использованы микрочипы SurePrint G3 Human CGH + SNP 4 × 180K (Agilent Technologies). В результате в экстраэмбриональных тканях 15 абортусов выявлены 39 гомозиготных областей. Для образцов с повторяющимися ROH была проведена верификация с помощью секвенирования по Сэнгеру. Для 25 протяженных ROH было показано наличие единичных гетерозиготных SNP, что может свидетельствовать в пользу того, что они образуются не de novo, а наследуются от родителей. При этом в ходе наследования в ряду поколений в них могут накапливаться мутации, приводящие к гетерозиготизации изначально гомозиготных участков генома. Один из возможных механизмов влияния таких унаследованных ROH на патогенез привычного невынашивания беременности – гомозиготизация рецессивных мутаций. Высокая частота длинных ROH, обнаруженная в настоящем исследовании, указывает на роль инбридинга в этиологии привычного невынашивания беременности. Гомозиготные области могут возникать также из-за однородительской дисомии, следовательно, аномалии геномного импринтинга могут быть другим механизмом, ответственным за патологическое проявление гомозиготных районов в эмбриогенезе. В составе обнаруженных регионов гомозиготности в соответствии с базой данных Geneimprint было выявлено пять предположительно импринтированных генов: OBSCN, HIST3H2BB, LMX1B, CELF4 и FAM59A. В результате проведенного исследования впервые показана высокая частота длинных ROH в тканях спонтанных абортусов с нормальным кариотипом из семей с привычным невынашиванием беременности. </p></abstract><trans-abstract xml:lang="en"><p>Recurrent pregnancy loss (RPL) is a severe reproductive pathology with a significant component of unexplained etiology. Extended homozygous regions as a possible etiological factor for RPL were sought in the genomes of embryos. Twenty-two paired first-trimester spontaneously aborted embryos from eleven women with recurrent miscarriage were analyzed. All embryos had normal karyotypes according to metaphase karyotyping and conventional comparative genomic hybridization. SurePrint G3 Human CGH + SNP 4 × 180K microarrays (Agilent Technologies) were used to search for homozygous regions. As a result, 39 runs of homozygosity (ROH) were identified in extraembryonic tissues of 15 abortuses. Verification of recurrent homozygous regions was performed by Sanger sequencing. The presence of occasional heterozygous SNPs was shown in 25 extended ROHs, which may indicate that they did not arise de novo but were inherited from parents. In the course of inheritance in a series of generations, they may accumulate mutations, leading to heterozygosity for several sites in the initially homozygous population-specific regions. Homozygotization of recessive mutations is one of the putative mechanisms of the influence of such inherited ROHs on RPL development. The high frequency of extended ROHs detected in the present study may point to a role of inbreeding in RPL etiology. Homozygous regions may also occur due to uniparental disomy, and abnormalities of genomic imprinting may be another mechanism responsible for the pathological manifestation of ROHs in embryogenesis. Indeed, five predicted imprinted genes were identified within ROHs according to the Geneimprint database: OBSCN, HIST3H2BB, LMX1B, CELF4, and FAM59A. This work reports the first finding of a high frequency of extended ROHs in spontaneously aborted embryos with normal karyotypes from families with RPL.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>привычное невынашивание беременности</kwd><kwd>сравнительная геномная гибридизация на   микрочипах</kwd><kwd>районы гомозиготности</kwd><kwd>ROH</kwd><kwd>спонтанные аборты</kwd><kwd>геномный импринтинг</kwd></kwd-group><kwd-group xml:lang="en"><kwd>recurrent pregnancy loss</kwd><kwd>array-based comparative genomic hybridization</kwd><kwd>runs of homozygosity</kwd><kwd>spontaneous abortions</kwd><kwd>genomic imprinting</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">Botstein D., Risch N. 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