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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">RUDN Journal of Medicine</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Медицина</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-0245</issn><issn publication-format="electronic">2313-0261</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">3239</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</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">Combined toxicity of Na                  2EDTA and D                  2O</article-title><trans-title-group xml:lang="ru"><trans-title>Комбинированная токсичность Nа                  2ЭДТА и D                  2O</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Burdeinaya</surname><given-names>T N</given-names></name><name xml:lang="ru"><surname>Бурдейная</surname><given-names>Татьяна Николаевна</given-names></name></name-alternatives><email>t_burdeynaya@yahoo.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zrelov</surname><given-names>O Y</given-names></name><name xml:lang="ru"><surname>Зрелов</surname><given-names>Олег Юрьевич</given-names></name></name-alternatives><bio xml:lang="en">Department of Pharmaceutical and Toxicological Chemistry</bio><bio xml:lang="ru">Медицинский факультет</bio><email>zrelovoleg@rambler.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Maksimova</surname><given-names>T V</given-names></name><name xml:lang="ru"><surname>Максимова</surname><given-names>Татьяна Владимировна</given-names></name></name-alternatives><bio xml:lang="en">Department of Pharmaceutical and Toxicological Chemistry</bio><bio xml:lang="ru">Кафедра фармацевтической и токсикологической химии Медицинский факультет</bio><email>maximtat@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Morozova</surname><given-names>M A</given-names></name><name xml:lang="ru"><surname>Морозова</surname><given-names>Мария Андреевна</given-names></name></name-alternatives><bio xml:lang="en">Department of Pharmaceutical and Toxicological Chemistry</bio><bio xml:lang="ru">Кафедра фармацевтической и токсикологической химии Медицинский факультет</bio><email>gor-mariya@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mtei</surname><given-names>G I</given-names></name><name xml:lang="ru"><surname>Мтеи</surname><given-names>Гасто Игнас</given-names></name></name-alternatives><bio xml:lang="en">Department of Pharmaceutical and Toxicological Chemistry</bio><bio xml:lang="ru">Медицинский факультет</bio><email>gastoi@yahoo.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Uspenskaya</surname><given-names>E V</given-names></name><name xml:lang="ru"><surname>Успенская</surname><given-names>Елена Валерьевна</given-names></name></name-alternatives><bio xml:lang="en">Department of Pharmaceutical and Toxicological Chemistry</bio><bio xml:lang="ru">Кафедра фармацевтической и токсикологической химии Медицинский факультет</bio><email>uspenskaya75@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pleteneva</surname><given-names>T V</given-names></name><name xml:lang="ru"><surname>Плетенева</surname><given-names>Татьяна Вадимовна</given-names></name></name-alternatives><bio xml:lang="en">Department of Pharmaceutical and Toxicological Chemistry</bio><bio xml:lang="ru">Кафедра фармацевтической и токсикологической химии Медицинский факультет</bio><email>tvplet@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Syroeshkin</surname><given-names>A V</given-names></name><name xml:lang="ru"><surname>Сыроешкин</surname><given-names>Антон Владимирович</given-names></name></name-alternatives><email>livmatter@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">ZAO “Legkaya voda”</institution></aff><aff><institution xml:lang="ru">ЗАО «Легкая вода»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Institute of Applied Geophysics</institution></aff><aff><institution xml:lang="ru">Институт прикладной геофизики</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-02-15" publication-format="electronic"><day>15</day><month>02</month><year>2013</year></pub-date><issue>2</issue><issue-title xml:lang="en">NO2 (2013)</issue-title><issue-title xml:lang="ru">№2 (2013)</issue-title><fpage>5</fpage><lpage>9</lpage><history><date date-type="received" iso-8601-date="2016-09-07"><day>07</day><month>09</month><year>2016</year></date></history><permissions><copyright-statement xml:lang="ru">Copyright ©; 2013, Бурдейная Т.Н., Зрелов О.Ю., Максимова Т.В., Морозова М.А., Мтеи Г.И., Успенская Е.В., Плетенева Т.В., Сыроешкин А.В.</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="ru">Бурдейная Т.Н., Зрелов О.Ю., Максимова Т.В., Морозова М.А., Мтеи Г.И., Успенская Е.В., Плетенева Т.В., Сыроешкин А.В.</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.rudn.ru/medicine/article/view/3239">https://journals.rudn.ru/medicine/article/view/3239</self-uri><abstract xml:lang="en">Physicochemical and biopharmaceutical analysis of excipients doesn’t allow to characterize them as inert components of drug products. Excipients are known to exhibit their own biological activity as well as influence the activity of API and other components of the formulation (antioxidants, stabilizers, fillers, etc.). Combined biological activity of stabilizer/antioxidant — disodium ethylenediaminetetraacetate (Na                  2EDTA) — and water with different ratios of hydrogen isotopes (D / H) was studied on biological models of Spirotox. It was found that with the growth of deuterium/protium ratio in water the toxicity of Na                  2EDTA increased.</abstract><trans-abstract xml:lang="ru">Физико-химический и биофармацевтический анализ вспомогательных веществ не позволяет характеризовать их как инертные компоненты готовых лекарственных форм. Вспомогательные вещества могут проявлять биологическую активность как сами по себе, так и влиять на активность действующего соединения и других компонентов лекарственной формы (антиоксидантов, стабилизаторов, наполнителей и др.). Комбинированная токсичность стабилизатора/антиоксиданта — динатриевой соли этилендиаминтетраацетата (Na                  2ЭДТА) — и воды с разным соотношением изотопов водорода (D/H) изучена на биологической модели Spirotox. Установлено, что с ростом отношения дейтерий/протий в воде наблюдается увеличение токсичности Na                  2ЭДТА. Вода, обедненная по дейтерию, снижает токсическое действие вспомогательного вещества.</trans-abstract><kwd-group xml:lang="en"><kwd>Spirotox</kwd><kwd>excipients</kwd><kwd>biopharmaceutical analysis</kwd><kwd>heavy water</kwd><kwd>Spirotox</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вспомогательные вещества</kwd><kwd>биофармацевтический анализ</kwd><kwd>тяжелая вода</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>The United States Pharmacopoeia 30-th ed. — Toronto, 2007. — 3539 pp.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Гончарук В.В., Лапшин В.Б., Бурдейная Т.Н., Сыроешкин А.В. и др. Физико-химические свойства и биологическая активность воды, обедненной по тяжелым изотопам // Химия и технология воды. — 2011. — Т. 33. — № 1. — С. 15—25.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Тенцова А.И., Терёшкина О.И., Рудакова И.П. и др. 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