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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">vestnik-bio-msu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Московского университета. Серия 16. Биология</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Moskovskogo universiteta. Seriya 16. Biologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0137-0952</issn><publisher><publisher-name>Lomonosov Moscow State University,  School of Biology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55959/MSU0137-0952-16-79-2S-9</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnik-bio-msu-1384</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>ОРИГИНАЛЬНОЕ ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLE</subject></subj-group></article-categories><title-group><article-title>Механизмы воздействия полиароматических углеводородов нефти на электрическую активность сердца северной наваги (Eleginus nawaga)</article-title><trans-title-group xml:lang="en"><trans-title>The mechanisms of effects of oil-derived polyaromatic hydrocarbons on cardiac electrical activity in navaga cod (Eleginus nawaga)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0131-1911</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филатова</surname><given-names>Т. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Filatova</surname><given-names>T. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Филатова Татьяна Сергеевна – канд. биол. наук, науч. сотр. кафедры физиологии человека и животных биологического факультета, 119234, г. Москва, Ленинские горы, д. 1, стр. 12;</p><p>121552, г. Москва, ул. Академика Чазова, д. 15а</p></bio><bio xml:lang="en"><p>Department of Human and Animal Physiology, Biological Faculty, Leninskie gory 1–12, Moscow, 119234;</p><p>st. Academician Chazova, 15a, Moscow, 121552</p></bio><email xlink:type="simple">filatova@mail.bio.msu.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/0000-0002-7372-9324</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бородков</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Borodkov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бородков Алексей Сергеевич – канд. хим. наук, ст. науч. сотр. лаборатории инструментальных методов и органических реагентов,</p><p>119991, г. Москва, ул. Косыгина, д. 19, стр. 1</p></bio><bio xml:lang="en"><p>Kosygina st. 19–1, Moscow, 119991</p></bio><email xlink:type="simple">abors@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0919-0712</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кархов</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Karkhov</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кархов Андрей Михайлович – студент кафедры физиологии человека и животных биологического факультета, 119234, г. Москва, Ленинские горы, д. 1, стр. 12;</p><p>121552, г. Москва, ул. Академика Чазова, д. 15а</p></bio><bio xml:lang="en"><p>Department of Human and Animal Physiology, Biological Faculty, Leninskie gory 1–12, Moscow, 119234;</p><p>st. Academician Chazova, 15a, Moscow, 121552</p></bio><email xlink:type="simple">akarchoff@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/0000-0001-5167-2112</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Джуманиязова</surname><given-names>И. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Dzhumaniiazova</surname><given-names>I. H.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Джуманиязова Ирина Хамрабековна – аспирант кафедры физиологии человека и животных биологического факультета,</p><p>119234, г. Москва, Ленинские горы, д. 1, стр. 12</p></bio><bio xml:lang="en"><p>Department of Human and Animal Physiology, Biological Faculty, </p><p>Leninskie gory 1–12, Moscow, 119234</p></bio><email xlink:type="simple">dzhumaniiazova.irina.2019@post.bio.msu.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5137-2187</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пустовит</surname><given-names>О. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Pustovit</surname><given-names>O. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пустовит Оксана Борисовна – канд. биол. наук, ст. науч. сотр. кафедры физиологиичеловека и животных биологического факультета,</p><p>119234, г. Москва, Ленинские горы, д. 1, стр. 12</p></bio><bio xml:lang="en"><p>Department of Human and Animal Physiology, Biological Faculty, </p><p>Leninskie gory 1–12, Moscow, 119234</p></bio><email xlink:type="simple">k_pustovit@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5751-8853</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абрамочкин</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Abramochkin</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абрамочкин Денис Валерьевич – докт. биол. наук, зав. кафедрой физиологии человека и животных биологического факультета,</p><p>119234, г. Москва, Ленинские горы, д. 1, стр. 12</p></bio><bio xml:lang="en"><p>Department of Human and Animal Physiology, Biological Faculty, </p><p>Leninskie gory 1–12, Moscow, 119234</p></bio><email xlink:type="simple">abram340@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М.В. Ломоносова;&#13;
Научно-исследовательский институт экспериментальной кардиологии имени академика В.Н. Смирнова, Национальный медицинский исследовательский центр кардиологии имени академика Е.И. Чазова Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University;&#13;
Academician Smirnov Institute of Experimental Cardiology, Academician Chazov National Medical Research Centre o Cardiology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт геохимии и аналитической химии имени В.И. Вернадского, Российская академия наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Московский государственный университет имени М.В. Ломоносова&#13;
Научно-исследовательский институт экспериментальной кардиологии имени академика В.Н. Смирнова, Национальный медицинский исследовательский центр кардиологии имени академика Е.И. Чазова Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University;&#13;
Academician Smirnov Institute of Experimental Cardiology, Academician Chazov National Medical Research Centre o Cardiology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Московский государственный университет имени М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>27</day><month>08</month><year>2024</year></pub-date><volume>79</volume><issue>2S</issue><fpage>89</fpage><lpage>97</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Филатова Т.С., Бородков А.С., Кархов А.М., Джуманиязова И.Х., Пустовит О.Б., Абрамочкин Д.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Филатова Т.С., Бородков А.С., Кархов А.М., Джуманиязова И.Х., Пустовит О.Б., Абрамочкин Д.В.</copyright-holder><copyright-holder xml:lang="en">Filatova T.S., Borodkov A.S., Karkhov A.M., Dzhumaniiazova I.H., Pustovit O.B., Abramochkin D.V.</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://vestnik-bio-msu.elpub.ru/jour/article/view/1384">https://vestnik-bio-msu.elpub.ru/jour/article/view/1384</self-uri><abstract><p>Интенсивное развитие нефте- и газодобывающей отраслей в Арктике ставит под угрозу арктические водные экосистемы. Считается, что токсическое и, прежде всего, летальное кардиотоксическое действие нефти на живые организмы связано с полиароматическими углеводородами (ПАУ), и в предыдущих работах были рассмотрены электрофизиологические механизмы действия отдельных ПАУ в составе нефти. Однако физиологические эффекты сложной смеси ПАУ в составе водорастворимой фракции (ВРФ) нефти ранее не изучались. Данное исследование сфокусировано на анализе действия ВРФ нефти на электрическую активность и основные ионные токи в рабочем миокарде наваги (Eleginus nawaga), одного из наиболее важных промысловых видов рыб Арктики. Было обнаружено, что 1%-ные и 10%-ные растворы ВРФ нефти вызывают выраженное увеличение длительности потенциалов действия в кардиомиоцитах наваги. Этот эффект, по всей видимости, связан с подавлением быстрого тока задержанного выпрямления IKr (IC50 около 3% в желудочковом и предсердном миокарде). В более высоких концентрациях ВРФ нефти подавляла и кальциевый ток ICaL (IC50 = 10,6%), что приводило к снижению сократительной активности изолированных препаратов миокарда. В отличие от отдельных трициклических ПАУ, ВРФ нефти не действовала на быстрый натриевый ток INa и не влияла на скорость фазы быстрой деполяризации потенциала действия. Оценка содержания трициклических ПАУ в 10%-ной ВРФ нефти показала, что их совокупная концентрация относительно низка и не превышает 100 нМ. Таким образом, ВРФ нефти также оказывает мощное кардиотоксическое действие в миокарде рыб, однако ее эффект отличается от исследованных ранее эффектов трициклических ПАУ и позволяет предполагать присутствие в составе нефти еще не исследованных соединений, обладающих более выраженной способностью блокировать калиевые каналы ERG.</p></abstract><trans-abstract xml:lang="en"><p>The intensive development of oil and gas industries in the Arctic threatens Arctic aquatic ecosystems. The toxic and primarily lethal cardiotoxic effects of oil in living organisms are believed to be associated with polyaromatic hydrocarbons (PAHs), and previous works revealed the electrophysiological mechanisms of action of individual oil-derived PAHs. However, the physiological effects of a complex PAHs mixture in oil water-soluble fraction (WSF) have not been previously studied. This study is focused on the effects of oil WSF on electrical activity and major ionic currents in the working myocardium of navaga (Eleginus nawaga), which is one of the most important commercial fish species in the Arctic. We found that 1% and 10% solutions of oil WSF cause a marked increase in the duration of action potentials (APs) in navaga cardiomyocytes. This effect appears to be due to the suppression of rapid delayed rectifying current IKr (IC50 about 3% in ventricular and atrial myocardium). At higher concentrations, oil WSF also suppressed calcium current ICaL (IC50 = 10.6%), which led to a decrease in the contractile activity in isolated myocardial preparations. Unlike individual tricyclic PAHs, oil WSF did not affect fast sodium current INa and AP upstroke velocity. An assessment of the content of tricyclic PAHs in 10% solution of oil WSF showed that their total concentration is relatively low and does not exceed 100 nM. Thus, oil WSF also has a powerful cardiotoxic effect in fish myocardium, but its effects differ from the previously studied effects of tricyclic PAHs and suggest the presence of yet unexplored oil compounds that have a more powerful toxic potential against ERG channels.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кардиомиоцит</kwd><kwd>потенциал действия</kwd><kwd>пэтч-кламп</kwd><kwd>полиароматические углеводороды</kwd><kwd>ионные токи</kwd><kwd>нефть</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cardiomyocyte</kwd><kwd>action potential</kwd><kwd>patch-clamp</kwd><kwd>polyaromatic hydrocarbons</kwd><kwd>ionic currents</kwd><kwd>oil</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Российского научного фонда (проект № 22-14- 00075). В работе было использовано оборудование, приобретенное МГУ имени М.В. Ломоносова в рамках федерального проекта «Развитие инфраструктуры для научных исследований и подготовки кадров» национального проекта «Наука и университеты» от 29.12.2022г №15-пр/42 (соглашение №355 от 15.03.2024).</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">Krupenio N.N., Parmuzin P.I., Zamoiskii V.L. Mapping of segments polluted by petroleum products in the Usinsk region of the Komi republic from remotemeasurement data. Hydrotechnical Construction. 1995;29(11):648–652.</mixed-citation><mixed-citation xml:lang="en">Krupenio N.N., Parmuzin P.I., Zamoiskii V.L. Mapping of segments polluted by petroleum products in the Usinsk region of the Komi republic from remotemeasurement data. 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