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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">Medical academic journal</journal-id><journal-title-group><journal-title xml:lang="en">Medical academic journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Медицинский академический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1608-4101</issn><issn publication-format="electronic">2687-1378</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">693972</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Basis medicine</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Фундаментальная медицина</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">Total saliva radical scavengers: photometric assay</article-title><trans-title-group xml:lang="ru"><trans-title>Суммарные ловушки активных форм кислорода в ротовой жидкости: фотометрический способ определения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuznetzov</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Кузнецов</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>shabanov@mail.rcom.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Galebskaja</surname><given-names>L. V.</given-names></name><name xml:lang="ru"><surname>Галебская</surname><given-names>Л. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>shabanov@mail.rcom.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Trezubov</surname><given-names>V. N.</given-names></name><name xml:lang="ru"><surname>Трезубов</surname><given-names>В. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>shabanov@mail.rcom.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bobrov</surname><given-names>A. P.</given-names></name><name xml:lang="ru"><surname>Бобров</surname><given-names>А. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>shabanov@mail.rcom.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuznetzov</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Кузнецов</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>shabanov@mail.rcom.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Andrienko</surname><given-names>K. Yu.</given-names></name><name xml:lang="ru"><surname>Андриенко</surname><given-names>К. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>shabanov@mail.rcom.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Pavlov Medical University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный медицинский университет им. акад. И. П. Павлова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2004-11-29" publication-format="electronic"><day>29</day><month>11</month><year>2004</year></pub-date><volume>4</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>46</fpage><lpage>51</lpage><history><date date-type="received" iso-8601-date="2025-10-21"><day>21</day><month>10</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-10-21"><day>21</day><month>10</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2004, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2004, Эко-Вектор</copyright-statement><copyright-year>2004</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2007-11-29"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/MAJ/article/view/693972">https://journals.eco-vector.com/MAJ/article/view/693972</self-uri><abstract xml:lang="en"><p>The method for determination of total antioxidant capacity of oral fluid (mixed saliva) has been developed. Dipyridyl served as an optical indicator reagent. The validity of the method was proved by theoretical calculations; by the data concerned the the capacity of such radical scavangers as querticin, morin, rutin and trolox to inactivate the active forms of oxygen as well as by measuring of their ferric-reduction ability. This methodical approach has allowed to confirm the literary data connected with sum antioxidants in human and rat serum (1,73 and 0,54 mM, accordingly). With help of this method the effective antioxidant concentration in saliva of volunteers (age 19-26 yeas old: female and male )was determined in ranges 0-0.6 mM as trolox Its average value appeared to be 6-fold lower than that of human plasma and 2-fold lower than that of rat serum.</p></abstract><trans-abstract xml:lang="ru"><p>Разработан фотометрический метод определения общих антиоксидантов в ротовой жидкости (смешанной слюне) человека с использованием дипиридила в качестве индикаторного соединения. Адекватность данного подхода доказана теоретическими расчетами, данными о способности таких радикальных ловушек, как квертицин, морин, рутин и тролокс, инактивировать активные формы кислорода и измеренной для них железовосстанавливающей способностью. При сравнении содержания суммарных антиоксидантов в случайных образцах плазмы крови человека и сыворотки крови крысы отмечались различия (1,79 и 0,54 мМ соответственно), совпадающие с данными литературы о концентрации основных радикальных ловушек в крови у этих двух видов. Разработанный способ позволил установить эффективную концентрацию антиоксидантов в слюне добровольцев обоего пола в возрасте 19-26 лет (0-0,612 мМ, n=20).</p></trans-abstract><kwd-group xml:lang="en"><kwd>antioxidants</kwd><kwd>saliva</kwd><kwd>rat and human plasma</kwd><kwd>dipyridyl</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>антиоксиданты</kwd><kwd>слюна</kwd><kwd>плазма крови</kwd><kwd>человек</kwd><kwd>крыса</kwd><kwd>дипиридил</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Бегельман И., Петрович Ю. Слюна // Большая медицинская энциклопедия. 1963. Т. 30. С. 670-706.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Бочкарева Н. В., Коломиец Л. А., Кондакова И. В. Диагностическое значение антиоксидантного статуса при диспластических изменениях слизистой оболочки и раке желудка // Клин. лаб. диагностика. 2000. № 3. 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