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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2009-2-56-60</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-1815</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>ЭКСПЕРИМЕНТАЛЬНЫЕ И КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL AND CLINICAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>Участие активных форм кислорода в регуляции Са2+ - активируемых К + -каналов эритроцитов</article-title><trans-title-group xml:lang="en"><trans-title>Participation of reactive oxygen species in regulation of Са2+ - activated К + channels of erythrocytes</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трубачева</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Trubacheva</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Трубачева Оксана Александровна, аспирант кафедры биофизики и функциональной диагностики </p><p>8-909-954-9916</p></bio><email xlink:type="simple">otrubacheva@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кремено</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kremeno</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд мед наук научный сотрудник</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петрова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrova</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д р биол наук профессор кафедры биофизики и функциональной диагностики</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ситожевский</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sitozhevsky</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. . , мед наук научный сотрудник</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Груздева</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gruzdeva</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд мед наук научный сотрудник</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд биол наук доцент кафедры биохимии</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Суслова</surname><given-names>Т. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Suslova</surname><given-names>T. Ye.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд мед наук ведущий научный сотрудник</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Сибирский государственный медицинский университет</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-2"><institution>НИИ кардиологии СО РАМН</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2009</year></pub-date><pub-date pub-type="epub"><day>28</day><month>04</month><year>2009</year></pub-date><volume>8</volume><issue>2</issue><fpage>56</fpage><lpage>60</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Трубачева О.А., Кремено С.В., Петрова И.В., Ситожевский А.В., Груздева О.В., Иванов В.В., Суслова Т.Е., 2009</copyright-statement><copyright-year>2009</copyright-year><copyright-holder xml:lang="ru">Трубачева О.А., Кремено С.В., Петрова И.В., Ситожевский А.В., Груздева О.В., Иванов В.В., Суслова Т.Е.</copyright-holder><copyright-holder xml:lang="en">Trubacheva O.A., Kremeno S.V., Petrova I.V., Sitozhevsky A.V., Gruzdeva O.V., Ivanov V.V., Suslova T.Y.</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://bulletin.ssmu.ru/jour/article/view/1815">https://bulletin.ssmu.ru/jour/article/view/1815</self-uri><abstract/><trans-abstract xml:lang="en"><p>In this study, we investigated the effects of preincubation with the reactive oxygen species-generating system xanthine oxidase/xanthine on Ca2+-dependent potassium permeability of erythrocyte membrane. The increase of intracellular calcium concentration in presence of calcium ionophore A23187 led to erythrocyte membrane hyperpolarization due to opening of Ca2+-activated potassium channels. Erythrocyte membrane potential was recorded via measurement of pH of the incubation medium in presence of prothonophore. Incubation of erythrocytes with xanthine (100 µmol)/ xanthine oxidase (10 mU/ml) mixture resulted in significant loss of amplitude and rate of hyperpolarization response and also loss the rate of membrane potential restoration. These effects can be caused by hydrogen peroxide, one of products of reaction of xanthine oxidase/xanthine.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>эритроциты</kwd><kwd>Ca2+-активируемые калиевые каналы</kwd><kwd>активные формы кислорода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>erythrocytes</kwd><kwd>Ca2+-activated potassium channels</kwd><kwd>reactive oxygen species</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Боровиков В.П., Боровиков И.П. Статистика. Статистический анализ и обработка данных в среде Windows. М., 1998. 591 с.</mixed-citation><mixed-citation xml:lang="en">Боровиков В.П., Боровиков И.П. Статистика. Статистический анализ и обработка данных в среде Windows. М., 1998. 591 с.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Владимиров Ю.А. 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