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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">problendo</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы Эндокринологии</journal-title><trans-title-group xml:lang="en"><trans-title>Problems of Endocrinology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0375-9660</issn><issn pub-type="epub">2308-1430</issn><publisher><publisher-name>Endocrinology Research Centre</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14341/probl200955334-36</article-id><article-id custom-type="elpub" pub-id-type="custom">problendo-11118</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>Клиническая эндокринология</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Clinical endocrinology</subject></subj-group></article-categories><title-group><article-title>Диагностические возможности определения биологически активного свободного тестостерона в крови с использованием современной технологии ультрафильтрации</article-title><trans-title-group xml:lang="en"><trans-title>Diagnostic capacities of determination of biologically active free testosterone in blood, by using current ultrafiltration techniques</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>Малышева</surname><given-names>Н М</given-names></name><name name-style="western" xml:lang="en"><surname>Malysheva</surname><given-names>N M</given-names></name></name-alternatives><email xlink:type="simple">probl@endojournals.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>Кация</surname><given-names>Г В</given-names></name><name name-style="western" xml:lang="en"><surname>Katsiya</surname><given-names>G V</given-names></name></name-alternatives><email xlink:type="simple">probl@endojournals.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>Гончаров</surname><given-names>Николай Петрович</given-names></name><name name-style="western" xml:lang="en"><surname>Goncharov</surname><given-names>Nikolay Petrovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор мед. наук, профессор, действительный член Европейской академии андрологии, руководитель лаборатории новых методов гормонального анализа</p></bio><email xlink:type="simple">GoncharovN@Endocrincentr.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>&lt;p&gt;Эндокринологический научный центр Росмедтехнологий&lt;/p&gt;</institution><country>Россия</country></aff><aff xml:lang="en"><institution>&lt;p&gt;Endocrinology Research Centre&lt;/p&gt;</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2009</year></pub-date><pub-date pub-type="epub"><day>15</day><month>06</month><year>2009</year></pub-date><volume>55</volume><issue>3</issue><issue-title>ТОМ , №3 (2009)</issue-title><fpage>34</fpage><lpage>36</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Малышева Н.М., Кация Г.В., Гончаров Н.П., 2009</copyright-statement><copyright-year>2009</copyright-year><copyright-holder xml:lang="ru">Малышева Н.М., Кация Г.В., Гончаров Н.П.</copyright-holder><copyright-holder xml:lang="en">Malysheva N.M., Katsiya G.V., Goncharov N.P.</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://www.probl-endojournals.ru/jour/article/view/11118">https://www.probl-endojournals.ru/jour/article/view/11118</self-uri><abstract><p>Современные методы иммуноанализа общего тестостерона в крови в большинстве случаев не обеспечивают достаточной диагностической точности. В данной работе мы определяли концентрацию свободного тестостерона в пробах крови и слюны 189 мужчин (19-83 лет), которые обращались в клинику для подтверждения или исключения диагноза различных нарушений функции эндокринных желез. Для определения уровня свободного тестостерона в сыворотке предварительно проводили ультрафильтрацию на фильтрах Amicon® Ultra-4 (MILLI-PORE) с мембраной 30К. Для измерения концентрации в ультрафильтрате и слюне использовали ультрачувствительный метод усиленной люминесценции (IBL-Гамбург, Германия). Процент выявления андрогенного дефицита по уровню свободного тестостерона в ультрафильтрате был выше, чем по уровню общего тестостерона и расчетного свободного тестостерона крови. Показатели свободного тестостерона в слюне и в сыворотке с предварительной ультрафильтрацией, измеренные ультрачувствительным методом усиленной люминесценции, могут служить дополнительным к клинической симптоматике чувствительным маркером для выявления различных форм нарушений андрогенного статуса.</p></abstract><trans-abstract xml:lang="en"><p>In most cases, current methods for immunoassay of blood total testosterone fail to provide a sufficient diagnostic accuracy. The authors measured the concentration of free testosterone in the blood and saliva samples from 189 males aged 19 to 83 years who had come to the clinic to confirm or exclude the diagnosis of various endocrine dysfunctions. Ultrafiltration had been previously carried on Amicon® Ultra membrane 30K filters (MILLIPORE) to determine the serum level of free testosterone. The ultrasensitive enhanced luminescence technique (IBL-Hamburg, Germany) was used to measure its concentration in the ultrafiltrate and saliva. The detection rate of androgen deficiency from the levels of free testosterone in the ultrafiltrate was higher than that from those of total testosterone and calculated free testosterone in blood. The preultrafiltration salivary and serum free testosterone values measured by the ultrasensitive enhanced luminescence technique may complement a sensitive marker of clinical symptoms to detect different forms of androgenic disorders.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>свободный тестостерон в крови и слюне</kwd><kwd>ультрафильтрация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>blood and salivary free testosterone</kwd><kwd>ultrafiltration</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">Albrecht S., Zimmermann T., Brandl H. et al. // J. Lab. 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