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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Ecological genetics</journal-id><journal-title-group><journal-title xml:lang="en">Ecological genetics</journal-title><trans-title-group xml:lang="ru"><trans-title>Экологическая генетика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1811-0932</issn><issn publication-format="electronic">2411-9202</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10956</article-id><article-id pub-id-type="doi">10.17816/ecogen173111-117</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Human ecological genetics</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экологическая генетика человека</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Study of acetylated histone h3k9 – an active chromatin mark – in chromosomes from adult and fetal human lymphocytes</article-title><trans-title-group xml:lang="ru"><trans-title>Изучение маркера активного хроматина — ацетилированного гистона н3к9 — хромосом из лимфоцитов человека в пре- и постнатальный период онтогенеза</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4495-0983</contrib-id><contrib-id contrib-id-type="scopus">14013324600</contrib-id><contrib-id contrib-id-type="spin">6959-5014</contrib-id><name-alternatives><name xml:lang="en"><surname>Efimova</surname><given-names>Olga A.</given-names></name><name xml:lang="ru"><surname>Ефимова</surname><given-names>Ольга Алексеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, researcher, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>efimova_o82@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">3123-2133</contrib-id><name-alternatives><name xml:lang="en"><surname>Pendina</surname><given-names>Anna A.</given-names></name><name xml:lang="ru"><surname>Пендина</surname><given-names>Анна Андреевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, researcher, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>pendina@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lezhnina</surname><given-names>Yuliia G.</given-names></name><name xml:lang="ru"><surname>Лежнина</surname><given-names>Юлия Георгиевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>biologist</p></bio><bio xml:lang="ru"><p>биолог</p></bio><email>avesfly@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">3170-2629</contrib-id><name-alternatives><name xml:lang="en"><surname>Tikhonov</surname><given-names>Andrei V.</given-names></name><name xml:lang="ru"><surname>Тихонов</surname><given-names>Андрей Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, researcher, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>tixonov5790@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">4027-4908</contrib-id><name-alternatives><name xml:lang="en"><surname>Chiryaeva</surname><given-names>Olga G.</given-names></name><name xml:lang="ru"><surname>Чиряева</surname><given-names>Ольга Гавриловна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, researcher, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>chiryaeva@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">8599-6886</contrib-id><name-alternatives><name xml:lang="en"><surname>Petrova</surname><given-names>Lyubov I.</given-names></name><name xml:lang="ru"><surname>Петрова</surname><given-names>Любовь Ивановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>laboratory geneticist, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>врач лабораторный генетик, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>petrovaluba@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">6286-7287</contrib-id><name-alternatives><name xml:lang="en"><surname>Dudkina</surname><given-names>Vera S.</given-names></name><name xml:lang="ru"><surname>Дудкина</surname><given-names>Вера Святославовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>laboratory geneticist, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>врач лабораторный генетик, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>dudkinavs@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">3038-4096</contrib-id><name-alternatives><name xml:lang="en"><surname>Koltsova</surname><given-names>Alla S.</given-names></name><name xml:lang="ru"><surname>Кольцова</surname><given-names>Алла Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>assistant researcher, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>исследователь, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>rosenrot15@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">4989-1932</contrib-id><name-alternatives><name xml:lang="en"><surname>Krapivin</surname><given-names>Mikhail I.</given-names></name><name xml:lang="ru"><surname>Крапивин</surname><given-names>Михаил Игоревич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>assistant researcher, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>лаборант-исследователь, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>krapivin-mihail@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Petrovskaia-Kaminskaia</surname><given-names>Anastasiia V.</given-names></name><name xml:lang="ru"><surname>Петровская-Каминская</surname><given-names>Анастасия Васильевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>assistant researcher, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>лаборант-исследователь, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>tonx2012@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Talantova</surname><given-names>Olga E.</given-names></name><name xml:lang="ru"><surname>Талантова</surname><given-names>Ольга Евгеньевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, researcher, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>кандидат медицинских наук, научный сотрудник, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>olga_talantova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">1000-7522</contrib-id><name-alternatives><name xml:lang="en"><surname>Kuznetzova</surname><given-names>Tatiana V.</given-names></name><name xml:lang="ru"><surname>Кузнецова</surname><given-names>Татьяна Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, researcher, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>tkuznetzova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">9196-7297</contrib-id><name-alternatives><name xml:lang="en"><surname>Baranov</surname><given-names>Vladislav S.</given-names></name><name xml:lang="ru"><surname>Баранов</surname><given-names>Владислав Сергеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Professor, laboratory head, laboratory for prenatal diagnosis of congenital and inherited diseases</p></bio><bio xml:lang="ru"><p>кандидат медицинских наук, заведующий лабораторией, лаборатория пренатальной диагностики наследственных и врожденных болезней человека</p></bio><email>baranov@vb2475.spb.edu</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский институт акушерства, гинекологии и репродуктологии им. Д.О. Отта</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Сenter for Medical Genetics</institution></aff><aff><institution xml:lang="ru">Диагностический центр (медико-генетический)</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Center for Medical Genetics</institution></aff><aff><institution xml:lang="ru">Диагностический центр (медико-генетический)</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Saint Petersburg State University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный университет</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2019-05-29" publication-format="electronic"><day>29</day><month>05</month><year>2019</year></pub-date><pub-date date-type="pub" iso-8601-date="2019-09-15" publication-format="electronic"><day>15</day><month>09</month><year>2019</year></pub-date><volume>17</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>111</fpage><lpage>117</lpage><history><date date-type="received" iso-8601-date="2019-01-29"><day>29</day><month>01</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-05-29"><day>29</day><month>05</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Efimova O.A., Pendina A.A., Lezhnina Y.G., Tikhonov A.V., Chiryaeva O.G., Petrova L.I., Dudkina V.S., Koltsova A.S., Krapivin M.I., Petrovskaia-Kaminskaia A.V., Talantova O.E., Kuznetzova T.V., Baranov V.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Ефимова О.А., Пендина А.А., Лежнина Ю.Г., Тихонов А.В., Чиряева О.Г., Петрова Л.И., Дудкина В.С., Кольцова А.С., Крапивин М.И., Петровская-Каминская А.В., Талантова О.Е., Кузнецова Т.В., Баранов В.С.</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Efimova O.A., Pendina A.A., Lezhnina Y.G., Tikhonov A.V., Chiryaeva O.G., Petrova L.I., Dudkina V.S., Koltsova A.S., Krapivin M.I., Petrovskaia-Kaminskaia A.V., Talantova O.E., Kuznetzova T.V., Baranov V.S.</copyright-holder><copyright-holder xml:lang="ru">Ефимова О.А., Пендина А.А., Лежнина Ю.Г., Тихонов А.В., Чиряева О.Г., Петрова Л.И., Дудкина В.С., Кольцова А.С., Крапивин М.И., Петровская-Каминская А.В., Талантова О.Е., Кузнецова Т.В., Баранов В.С.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/ecolgenet/article/view/10956">https://journals.eco-vector.com/ecolgenet/article/view/10956</self-uri><abstract xml:lang="en"><p><bold>Background:</bold> Incorrect epigenetic modifications of the human genome may result in epigenetic disorders, thus, highlighting the necessity of studying chromosome epigenetic patterns in human development.</p> <p><bold>Aim of the study:</bold> A comparative analysis of acetylated histone H3K9 (AcH3K9) patterns in human metaphase chromosomes from the lymphocytes of adults and fetuses.</p> <p> <bold>Materials and methods:</bold> The immunocytochemical detection of AcH3K9 in the metaphase chromosomes from PHA-stimulated peripheral lymphocytes of 13 adults and cord blood lymphocytes of 10 fetuses at 20-22 weeks of gestation.</p> <p><bold>Results:</bold> Both in the chromosomes of the adults and the fetuses, AcH3K9 accumulated in the R- and T-, but not G-bands and avoided the regions of pericentromeric heterochromatin of the chromosomes 1, 9 and 16. When comparing the adult and the fetal chromosomes, different levels of AcH3K9 were revealed in a few bands: 2q31, 5p13, 5p15 and 16p13 had higher level of Н3К9 acetylation in adults, in contrast to 9q13 which was hyperacetylated in fetuses.</p> <p><bold>Conclusion:</bold> The АсН3К9 distribution in metaphase chromosomes is band-specific and is similar between the adults and the fetuses, excluding a few bands with different acetylation levels.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение:</bold> Нарушения эпигенетического маркирования генома приводят к хроматиновым болезням, в связи с чем актуальным представляется изучение эпигенетических маркеров хромосом в онтогенезе человека.</p> <p><bold>Цель:</bold> Сравнительный анализ распределения ацетилированного по лизину в 9-м положении гистона Н3 (AcH3K9) на метафазных хромосомах из лимфоцитов периферической крови взрослых индивидов и пуповинной крови плодов человека.</p> <p><bold>Методы:</bold> Иммуноцитохимическая детекция AcH3K9 на препаратах метафазных хромосом из ФГА-стимулированных лимфоцитов периферической крови 13 взрослых индивидов и пуповинной крови 10 плодов человека 20-22 недель развития.</p> <p><bold>Результаты:</bold> Участки хроматина, обогащенные АсН3К9, преимущественно локализованы в R- и, особенно, в T-сегментах метафазных хромосом как у плодов, так и у взрослых индивидов. АсН3К9 отсутствует в блоках прицентромерного гетерохроматина хромосом 1, 9, 16; степень ацетилирования G-сегментов - низкая. Выявлены различия по содержанию АсН3К9 в отдельных сегментах хромосом у взрослых и плодов: в сегментах 2q31, 5p13, 5p15 и 16p13 выявлен более высокий уровень ацетилирования Н3К9 у взрослых индивидов по сравнению с таковым у плодов, а в сегменте 9q13, наоборот, – более низкий.</p> <p><bold>Выводы:</bold> Распределение АсН3К9 вдоль плеч метафазных хромосом из лимфоцитов характеризуется сегментной специфичностью и одинаково у взрослых индивидов и плодов человека за исключением единичных сегментов, в которых уровень ацетилирования Н3К9 отличается.</p></trans-abstract><kwd-group xml:lang="en"><kwd>epigenetics</kwd><kwd>human development</kwd><kwd>histone acetylation</kwd><kwd>chromosomes</kwd><kwd>chromatin disorders</kwd><kwd>prenatal diagnosis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эпигенетика</kwd><kwd>онтогенез человека</kwd><kwd>ацетилирование гистонов</kwd><kwd>хромосомы</kwd><kwd>хроматиновые болезни</kwd><kwd>пренатальная диагностика</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="en">Scholarship of the President of the Russian Federation</institution></institution-wrap><institution-wrap><institution xml:lang="ru">Стипендия Президента РФ</institution></institution-wrap></funding-source><award-id></award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Waddington CH. 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