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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">Biology Bulletin</journal-id><journal-title-group><journal-title xml:lang="en">Biology Bulletin</journal-title><trans-title-group xml:lang="ru"><trans-title>Известия Российской академии наук. Серия биологическая</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1026-3470</issn><issn publication-format="electronic">3034-5367</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">689893</article-id><article-id pub-id-type="doi">10.31857/S1026347025050048</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>BIOCHEMISTRY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>БИОХИМИЯ</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">Membrane-Protective effect of lipid extract of Marine Red Seaweed <italic>Ahnfeltia tobuchiensis</italic> (Kanno et Matsubara) Makienko under experimental carbone tetrachloride poisoning</article-title><trans-title-group xml:lang="ru"><trans-title>Мембранопротекторный эффект липидного экстракта морской красной водоросли <italic>Ahnfeltia Tobuchiensis</italic> (Kanno et Matsubara) Makienko при интоксикации четыреххлористым углеродом в эксперименте</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fomenko</surname><given-names>S. E.</given-names></name><name xml:lang="ru"><surname>Фоменко</surname><given-names>С. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sfomenko@poi.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kushnerova</surname><given-names>N. F.</given-names></name><name xml:lang="ru"><surname>Кушнерова</surname><given-names>Н. Ф.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sfomenko@poi.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sprygin</surname><given-names>V. G.</given-names></name><name xml:lang="ru"><surname>Спрыгин</surname><given-names>В. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sfomenko@poi.dvo.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Il’ichev Pacific Oceanological Institute, Far East Branch, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">ФГБУН Тихоокеанский океанологический институт им. В.И. Ильичева ДВО РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-09-04" publication-format="electronic"><day>04</day><month>09</month><year>2025</year></pub-date><issue>5</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>530</fpage><lpage>541</lpage><history><date date-type="received" iso-8601-date="2025-08-26"><day>26</day><month>08</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-08-26"><day>26</day><month>08</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://medjrf.com/1026-3470/article/view/689893">https://medjrf.com/1026-3470/article/view/689893</self-uri><abstract xml:lang="en"><p>Carbon tetrachloride (CCl4) disrupts the stable operation of biological membranes, causing disturbances in the lipid bilayer, as well as changes in the properties of membrane lipids. The protective effect of lipid complex isolated from the marine red alga <italic>Ahnfeltia tobuchiensis</italic> and the reference drug “Essentiale” was investigated on the plasma membranes of mouse erythrocytes, obtained in the modeling of toxic hepatitis induced by<italic>CCl₄</italic>. The lipid extract from <italic>A. tobuchiensis</italic> was not inferior in efficiency to the phospholipid preparation essenciale in restoring the indices of both membrane lipids and blood plasma lipids, as well as in normalizing the parameters of antioxidant protection of the organism. The membrane-protective effect of algal extract is due to its multicomponent composition including glyco- and phospholipids with predominance of polyunsaturated fatty acids of n-3 and n-6 families.</p></abstract><trans-abstract xml:lang="ru"><p>Четыреххлористый углерод (CCl<sub>4</sub>) нарушает стабильную работу биологических мембран, вызывая нарушения в липидном бислое, а также изменения свойств мембранных липидов. Исследовали защитный эффект липидного комплекса, выделенного из морской красной водоросли <italic>Ahnfeltia tobuchiensis</italic> и препарата сравнения “Эссенциале”, на плазматические мембраны эритроцитов мышей, полученные при моделировании токсического гепатита, индуцированного<italic>CCl₄</italic>. Липидный экстракт из <italic>A. tobuchiensis </italic>не<italic> </italic>уступал по эффективности<italic> </italic>фосфолипидному препарату эссенциале в восстановлении показателей как мембранных липидов, так и липидов плазмы крови, а также в нормализации параметров антиоксидантной защиты организма. Мембранопротекторный эффект водорослевого экстракта обусловлен его многокомпонентным составом, включающим глико- и фосфолипиды с преобладанием полиненасыщенных жирных кислот семейств n-3 и n-6.</p></trans-abstract><kwd-group xml:lang="en"><kwd>lipid extract</kwd><kwd>Ahnfeltia tobuchiensis</kwd><kwd>erythrocytes</kwd><kwd>antioxidant defence</kwd><kwd>mice</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>липидный экстракт</kwd><kwd>Ahnfeltia tobuchiensis</kwd><kwd>“Эссенциале”</kwd><kwd>CCl₄</kwd><kwd>эритроциты</kwd><kwd>антиоксидантная защита</kwd><kwd>мыши</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство РФ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source><award-id>124022100077-0</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Беседнова Н. 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