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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">astmed</journal-id><journal-title-group><journal-title xml:lang="ru">Астраханский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Astrakhan medical journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1992-6499</issn><publisher><publisher-name>ФГБОУ ВО Астраханский ГМУ Минздрава России</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17021/1992-6499-2024-1-100-108</article-id><article-id custom-type="elpub" pub-id-type="custom">astmed-404</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>Протективные свойства лактоферрина при нарушении сперматогенеза</article-title><trans-title-group xml:lang="en"><trans-title>Protective properties of lactoferrin in spermatogenesis disorders</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>Мередов</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Meredov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сердар Аллабердиевич Мередов, аспирант кафедры урологии</p></bio><bio xml:lang="en"><p>Serdar A. Meredov, graduate student</p><p>Astrakhan</p></bio><email xlink:type="simple">meredov_serdar@mail.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>Мавлютова</surname><given-names>Е. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Mavlyutova</surname><given-names>E. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Борисовна Мавлютова, ассистент кафедры фундаментальной химии</p></bio><bio xml:lang="en"><p>Elena B. Mavlyutova, Assistant of the Department</p><p>Astrakhan</p></bio><email xlink:type="simple">elenanazarovast@yandex.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>Плосконос</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ploskonos</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мария Вячеславовна Плосконос, доктор биологических наук, профессор кафедры фундаментальной химии</p></bio><bio xml:lang="en"><p>Mariya V. Ploskonos, Dr. Sc. (Biol.), Professor of the Department</p><p>Astrakhan</p></bio><email xlink:type="simple">ploskonoz@mail.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>Николаев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Аркадьевич Николаев, доктор медицинских наук, профессор кафедры фундаментальной химии</p></bio><bio xml:lang="en"><p>Alexandr A. Nikolaev, Dr. Sci. (Med.), Professor of the Department</p><p>Astrakhan</p></bio><email xlink:type="simple">chimnik@mail.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>Терентьев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Terentev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Александрович Терентьев, доктор медицинских наук, профессор кафедры биохимии, член-корреспондент РАН</p><p>Москва</p></bio><bio xml:lang="en"><p>Alexandr A. Terentev, Dr. Sci. (Med.), Professor of the Department</p><p>Moscow</p></bio><email xlink:type="simple">aaterent@inbox.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Астраханский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Astrakhan State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Российский национальный исследовательский медицинский университет им. Н. И. Пирогова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>11</day><month>04</month><year>2024</year></pub-date><volume>19</volume><issue>1</issue><fpage>100</fpage><lpage>108</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мередов С.А., Мавлютова Е.Б., Плосконос М.В., Николаев А.А., Терентьев А.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Мередов С.А., Мавлютова Е.Б., Плосконос М.В., Николаев А.А., Терентьев А.А.</copyright-holder><copyright-holder xml:lang="en">Meredov S.A., Mavlyutova E.B., Ploskonos M.V., Nikolaev A.A., Terentev A.A.</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.astmedj.ru/jour/article/view/404">https://www.astmedj.ru/jour/article/view/404</self-uri><abstract><p>Цель исследования: оценка защитного эффекта лактоферрина при дисфункции яичек низкоинтенсивным электромагнитным излучением миллиметрового диапазона. Материалы и методы. В исследование вошли 48 половозрелых крыс-самцов. Их разделили на четыре группы: группа контроля, группа облучения низкоинтенсивным электромагнитным излучением миллиметрового диапазона, группа «лактоферрин» с пероральным приемом лактоферрина по 10 мг в день, группа совместного облучения низкоинтенсивным электромагнитным излучением миллиметрового диапазона и прием лактоферрина. Тестикулярный сперматогенез оценивали традиционными методами. Гомогенат ткани семенников использовали для вестерн-блот анализа. Концентрацию тестостерона в сыворотке определяли с помощью наборов для иммуноферментного анализа. Данные проанализированы с использованием однофакторного дисперсионного анализа (ANOVA). Статистическую разницу принимали при p &lt; 0,05. Результаты. Низкоинтенсивное электромагнитное излучение миллиметрового диапазона вызывает достоверное снижение концентрации сперматозоидов почти в 2 раза (51,7 % от контроля). Совместное пероральное применение лактоферрина с низкоинтенсивным электромагнитным излучением миллиметрового диапазона оказывает защитное действие на концентрацию сперматозоидов. Электромагнитное излучение миллиметрового диапазона вызывает достоверное снижение выработки тестостерона яичками. Пероральное применение лактоферрина на фоне облучения сохранило нормальный уровень тестостерона. Лактоферрин также улучшает целостность гематотестикулярного барьера, нарушенного воздействием излучения миллиметрового диапазона. Излучение миллиметрового диапазона достоверно снижает экспрессию клаудина 11 на 40 %. Совместное применение излучения миллиметрового диапазона и перорального введения лактоферрина сохраняет продукцию клаудина 11 на уровне контроля. Облучение достоверно снижает продукцию N-кадгерина, совместное применение облучения и перорального введения лактоферрина не восстанавливает уровень этого белка. Заключение. Полученные результаты показали, что лактоферрин защищал сперматогенез и интегральные аспекты гематотестикулярного барьера, которые были нарушены воздействием излучения миллиметрового диапазона. </p></abstract><trans-abstract xml:lang="en"><p>Objective of the study: to evaluate the protective effect of lactoferrin on improving spermatogenic function in testicular dysfunction caused by low-intensity electromagnetic radiation of the millimeter range. Materials and methods: 48 mature male rats were used. They were divided into four groups: a control group, a group exposed to low-intensity electromagnetic radiation of the millimeter range, a group of lactoferrin with oral intake of lactoferrin 10 mg per day, a group of combined irradiation with lowintensity electromagnetic radiation of the millimeter range and taking lactoferrin. Testicular spermatogenesis was assessed using traditional methods. Testicular tissue homogenate was used for Western blot analysis. Serum testosterone concentrations were determined using enzyme-linked immunosorbent assay (ELISA) kits. Data were analyzed using one-way analysis of variance (ANOVA). A statistical difference was accepted at p &lt; 0.05. Results. Low-intensity electromagnetic radiation in the millimeter range causes a significant decrease in sperm concentration by almost 2 times (51.7 % of the control). Combined oral administration of lactoferrin with low-intensity millimeter-wave electromagnetic radiation has a protective effect on sperm concentration. Electromagnetic radiation in the millimeter range causes a significant decrease in testosterone production in the testicles. Oral administration of lactoferrin during radiation maintained normal testosterone levels. Lactoferrin also improves the integrity of the blood-testis barrier, which is compromised by exposure to millimeter-wave radiation. Millimeter-wave radiation significantly reduces the expression of claudin 11 by 40 %. The combined use of millimeter-wave radiation and oral administration of lactoferrin maintains claudin 11 production at control levels. Irradiation significantly reduces the production of N-cadherin; the combined use of irradiation and oral administration of lactoferrin does not restore the level of this protein. Conclusion. Taken together, the results showed that lactoferrin ameliorated spermatogenesis and integral aspects of the blood-testis barrier that were compromised by exposure to millimeter-wave radiation, which was achieved by improving the integrity of the blood-testis barrier, restoring claudin-11 expression, as well as restoring testosterone levels.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>низкоинтенсивное электромагнитное излучение миллиметрового диапазона</kwd><kwd>лактоферрин</kwd><kwd>сперматогенез</kwd><kwd>гематотестикулярный барьер</kwd></kwd-group><kwd-group xml:lang="en"><kwd>low-intensity electromagnetic radiation of the millimeter range</kwd><kwd>lactoferrin</kwd><kwd>spermatogenesis</kwd><kwd>blood-testis barrier</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">Kilchevsky A., Honig S. 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