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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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2021-36-4-62-69</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-1286</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Пилотное исследование изменения уровня piРНК в плазме и сыворотке крови у женщин на разных сроках физиологической беременности</article-title><trans-title-group xml:lang="en"><trans-title>Pilot study of changes in the level of piRNA in plasma and serum in women at different stages of physiological pregnancy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7465-4504</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глотов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Glotov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д-р биол. наук, руководитель отдела геномной медицины; заведующий лабораторией биобанкинга и геномной медицины</p><p>199034, Российская Федерация, Санкт-Петербург,  Менделеевская линия, 3 </p><p> 199034, Российская Федерация, Санкт-Петербург, Университетская наб., 7 </p></bio><bio xml:lang="en"><p> Dr. Sci. (Biol.), Head of the Department of Genomic Medicine; Head of the Laboratory of Biobanking and Genomic Medicine</p><p> 3, Mendeleevskaya liniya, Saint Petersburg, 199034, Russian Federation </p><p> 7, Universitetskaya emb., Saint-Petersburg, 199034, Russian Federation </p></bio><email xlink:type="simple">anglotov@mail.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/0000-0001-8520-3445</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козюлина</surname><given-names>П. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozyulina</surname><given-names>P. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p> биолог; младший научный сотрудник </p><p>199034, Российская Федерация, Санкт-Петербург,  Менделеевская линия, 3 </p><p>196608, Российская Федерация, Санкт-Петербург, Пушкин-8, шоссе Подбельского, 3</p></bio><bio xml:lang="en"><p> Biologist; Junior Research Scientist</p><p> 3, Mendeleevskaya liniya, Saint Petersburg, 199034, Russian Federation </p><p>3, Podbelsky chausse, Saint-Petersburg, 196608, Russian Federation</p></bio><email xlink:type="simple">polykoz@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6996-8891</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вашукова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Vashukova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p> научный сотрудник, лаборатория геномики и биоресурсных коллекций </p><p>199034, Российская Федерация, Санкт-Петербург,  Менделеевская линия, 3 </p></bio><bio xml:lang="en"><p> Research Scientist </p><p> 3, Mendeleevskaya liniya, Saint Petersburg, 199034, Russian Federation </p></bio><email xlink:type="simple">vi_lena@list.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2711-748X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Илларионов</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Illarionov</surname><given-names>R. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант; специалист, РЦ «Центр Биобанк» Научного парка; младший научный сотрудник, лаборатория геномики и биоресурсных коллекций </p><p>199034, Российская Федерация, Санкт-Петербург,  Менделеевская линия, 3 </p><p> 199034, Российская Федерация, Санкт-Петербург, Университетская наб., 7 </p><p>190013, Российская Федерация, Санкт-Петербург, Московский пр., 26</p></bio><bio xml:lang="en"><p> Postgraduate Student; Specialist, RC Center Biobank, Science Park; Junior Research Scientist</p><p> 3, Mendeleevskaya liniya, Saint Petersburg, 199034, Russian Federation </p><p> 7, Universitetskaya emb., Saint-Petersburg, 199034, Russian Federation </p><p>26, Moskovsky ave., Saint-Petersburg, 190013, Russian Federation</p></bio><email xlink:type="simple">r.a.illarionov@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5515-5363</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юркина</surname><given-names>Н. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Yurkina</surname><given-names>N. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p> младший научный сотрудник, лаборатория геномики и биоресурсных коллекций</p><p>199034, Российская Федерация, Санкт-Петербург,  Менделеевская линия, 3 </p></bio><bio xml:lang="en"><p> Junior Research Scientist </p><p> 3, Mendeleevskaya liniya, Saint Petersburg, 199034, Russian Federation </p></bio><email xlink:type="simple">yurkina.natali1002@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4116-0222</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пачулия</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pachulia</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач акушер-гинеколог, научный сотрудник, лаборатория геномики и биоресурсных коллекций</p><p>199034, Российская Федерация, Санкт-Петербург,  Менделеевская линия, 3 </p></bio><bio xml:lang="en"><p> Obstetrician-Gynecologist, Research Scientist, Laboratory of Genomics and Bioresource Collection </p><p> 3, Mendeleevskaya liniya, Saint Petersburg, 199034, Russian Federation </p></bio><email xlink:type="simple">for.olga.kosyakova@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1404-371X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бутенко</surname><given-names>М. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Butenko</surname><given-names>M. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p> клинический ординатор</p><p>199034, Российская Федерация, Санкт-Петербург,  Менделеевская линия, 3 </p></bio><bio xml:lang="en"><p> Clinical Resident </p><p> 3, Mendeleevskaya liniya, Saint Petersburg, 199034, Russian Federation </p></bio><email xlink:type="simple">butenkomariabutenko@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1664-7103</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Постникова</surname><given-names>Т. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Postnikova</surname><given-names>T. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p> врач акушер-гинеколог, женская консультация; младший научный сотрудник</p><p>199034, Российская Федерация, Санкт-Петербург,  Менделеевская линия, 3 </p><p>198259, Российская Федерация, Санкт-Петербург, ул. Тамбасова, 21</p></bio><bio xml:lang="en"><p> Obstetrician-Gynecologist, Antenatal clinic; Junior Research Scientist</p><p> 3, Mendeleevskaya liniya, Saint Petersburg, 199034, Russian Federation </p><p>21, Tambasova str., Saint-Petersburg, 198259, Russian Federation</p></bio><email xlink:type="simple">ptb20@mail.ru</email><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6542-5953</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Беспалова</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bespalova</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p> заместитель директора по научной работе</p><p>199034, Российская Федерация, Санкт-Петербург,  Менделеевская линия, 3 </p></bio><bio xml:lang="en"><p> Dr. Sci. (Med.), Deputy Director for Research </p><p> 3, Mendeleevskaya liniya, Saint Petersburg, 199034, Russian Federation </p></bio><email xlink:type="simple">sheggerra@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт акушерства, гинекологии и репродуктологии имени Д.О. Отта;&#13;
Санкт-Петербургский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>D. O. Ott Research Institute for Obstetrics, Gynecology, and Reproduction;&#13;
St. Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт акушерства, гинекологии и репродуктологии имени Д.О. Отта%&#13;
Всероссийский НИИ сельскохозяйственной микробиологии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>D. O. Ott Research Institute for Obstetrics, Gynecology, and Reproduction;&#13;
All-Russia Research Institute for Agricultural Microbiology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Научно-исследовательский институт акушерства, гинекологии и репродуктологии имени Д.О. Отта</institution><country>Россия</country></aff><aff xml:lang="en"><institution>D. O. Ott Research Institute for Obstetrics, Gynecology, and Reproduction</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Научно-исследовательский институт акушерства, гинекологии и репродуктологии имени Д.О. Отта;&#13;
Санкт-Петербургский государственный университет;&#13;
Санкт-Петербургский государственный технологический институт (технический университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>D. O. Ott Research Institute for Obstetrics, Gynecology, and Reproduction;&#13;
St. Petersburg State University;&#13;
St. Petersburg State Institute of Technology (Technical University)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Научно-исследовательский институт акушерства, гинекологии и репродуктологии имени Д.О. Отта;&#13;
Родильный дом № 10</institution><country>Россия</country></aff><aff xml:lang="en"><institution>D. O. Ott Research Institute for Obstetrics, Gynecology, and Reproduction;&#13;
Maternity Hospital No. 10</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>02</day><month>01</month><year>2022</year></pub-date><volume>36</volume><issue>4</issue><fpage>62</fpage><lpage>69</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Глотов А.С., Козюлина П.Ю., Вашукова Е.С., Илларионов Р.А., Юркина Н.О., Пачулия О.В., Бутенко М.Г., Постникова Т.Б., Беспалова О.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Глотов А.С., Козюлина П.Ю., Вашукова Е.С., Илларионов Р.А., Юркина Н.О., Пачулия О.В., Бутенко М.Г., Постникова Т.Б., Беспалова О.Н.</copyright-holder><copyright-holder xml:lang="en">Glotov A.S., Kozyulina P.Y., Vashukova E.S., Illarionov R.A., Yurkina N.O., Pachulia O.V., Butenko M.G., Postnikova T.B., Bespalova O.N.</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.sibjcem.ru/jour/article/view/1286">https://www.sibjcem.ru/jour/article/view/1286</self-uri><abstract><p>Цель: провести исследование изменения уровня piРНК в плазме и сыворотке крови беременных женщин на разных сроках гестации.Материал и методы. Проведено исследование 42 образцов плазмы и сыворотки крови, полученных от 7 женщин с физиологической одноплодной беременностью без акушерско-гинекологической патологии в трех временных точках (первая – 8–13, вторая – 18–25 и третья – 30–35 нед. беременности). Для оценки спектра и уровня piРНК методом NGS проведено полногеномное секвенирование малых РНК. Анализ данных секвенирования осуществлен с использованием веб-программы GeneGlobe Data Analysis Center. Дифференциальная экспрессия оценена с помощью пакета DESeq2 R package.Результаты и обсуждение. Содержание piРНК среди всех малых РНК составило 2,29; 2,61 и 4,16% для плазмы и 7,29; 7,02 и 10,82% – для сыворотки в первом, втором и третьем триместре соответственно. От первого триместра к третьему в плазме крови увеличивается содержание следующих piРНК: piR 000765, piR 020326, piR 019825, piR 020497, piR 015026, piR 001312, piR 017716. Показано, что в сыворотке по сравнению с плазмой значительно больше piR 000765, piR 020326, piR 019825, piR 015026, piR 020497, piR 001312, piR 017716, piR 004153, тогда как в плазме – только одной молекулы – piR 018849.Заключение. Данная пилотная работа создает определенный базис для понимания процессов экспрессии piРНК в плазме и сыворотке беременных женщин и может стать основой для поиска биомаркеров различных осложнений беременности.</p></abstract><trans-abstract xml:lang="en"><p>Aim. To study changes in the level of piRNA in plasma and serum of pregnant women at different stages of gestation.Material and Methods. A total of 42 samples of plasma and blood serum were obtained from seven women with physiological singleton pregnancy without obstetric and gynecological pathology. The study was carried out at three time points corresponding to 8–13, 18–25, and 30–35 weeks of pregnancy, respectively. To assess the spectrum and levels of piRNA by the NGS method, whole genome sequencing of small RNAs was carried out. Sequencing data analysis was performed using the GeneGlobe Data Analysis Center web application. Differential expression was assessed using the DESeq2 R package.Results and Discussion. The piRNA contents among all small RNAs were 2.29%, 2.61%, and 4.16% in plasma and 7.29%, 7.02%, and 10.82% in serum during the first, second, and third trimesters, respectively. The contents of the following piRNAs increased in blood plasma from the first to the third trimester: piR 000765, piR 020326, piR 019825, piR 020497, piR 015026, piR 001312, and piR 017716. The study showed that the levels of piR 000765, piR 020326, piR 019825, piR 015026, piR 020497, piR 001312, piR 017716, and piR 004153 were significantly higher in serum compared with the corresponding values in plasma whereas the content of only one molecule, piR 018849, was higher in plasma.Conclusion. This pilot work created a basis for understanding the processes of piRNA expression in plasma and serum of pregnant women and can become the foundation for the search for biomarkers of various complications in pregnancy.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>piРНК</kwd><kwd>беременность</kwd><kwd>плазма</kwd><kwd>сыворотка</kwd><kwd>массовое параллельное секвенирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>piRNA</kwd><kwd>pregnancy</kwd><kwd>plasma</kwd><kwd>serum</kwd><kwd>massive parallel sequencing</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">исследование проведено при поддержке гранта РНФ № 19-75-20033</funding-statement><funding-statement xml:lang="en">the study was supported by the Russian Science Foundation (grant No. 19-75-20033)</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Watson C.N., Belli A., Di Pietro V. 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