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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">antibiotics</journal-id><journal-title-group><journal-title xml:lang="ru">Антибиотики и Химиотерапия</journal-title><trans-title-group xml:lang="en"><trans-title>Antibiot Khimioter = Antibiotics and Chemotherapy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0235-2990</issn><publisher><publisher-name>ООО «Издательство ОКИ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37489/0235-2990-2022-67-5-6-4-9</article-id><article-id custom-type="elpub" pub-id-type="custom">antibiotics-922</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Experimental Research</subject></subj-group></article-categories><title-group><article-title>Оценка противомикробной активности производного пиримидина в отношении Staphylococcus aureus</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation of Antimicrobial Activity of a Pyrimidine Derivative Against Staphylococcus Aureus</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9994-4751</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ЦИБИЗОВА</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>TSIBIZOVA</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Цибизова Александра Александровна — к. фарм. н., доцент кафедры фармакогнозии, фармацевтической технологии и биотехнологии</p><p>Астрахань</p></bio><bio xml:lang="en"><p>Alexandra A. Tsibizova — Ph. D. in pharmaceutics</p><p>Astrakhan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2998-2864</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ЯСЕНЯВСКАЯ</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>YASINEVSKAYA</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ясенявская Анна Леонидовна — к. м. н., доцент, руководитель Научно-исследовательского центра, доцент кафедры фармакогнозии, фармацевтической технологии и биотехнологии</p><p>414000, г. Астрахань, ул. Бакинская, 121</p></bio><bio xml:lang="en"><p>Anna L. Yasenyavskaya — Ph.D. in medicine, Associate Professor</p><p>Astrakhan</p></bio><email xlink:type="simple">yasen_9@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7574-3923</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ТЮРЕНКОВ</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>TYURENKOV</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тюренков Иван Николаевич — д. м. н., профессор, член-корреспондент Российской академии наук, заведующий кафедрой фармакологии и фармации Института непрерывного медицинского и фармацевтического образования факультета усовершенствования врачей</p><p>Волгоград</p></bio><bio xml:lang="en"><p>Ivan N. Tyurenkov — D. Sc. in medicine, Professor, Corresponding Member of the Russian Academy of Sciences</p><p>Volgograd</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4721-0959</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ОЗЕРОВ</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>OZEROV</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Озеров Александр Александрович — д. х. н., профессор, заведующий кафедрой фармацевтической и токсикологической химии</p><p>Волгоград</p></bio><bio xml:lang="en"><p>Alexandr A. Ozerov — D. Sc. in chemistry, Professor</p><p>Volgograd</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4168-4851</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>БАШКИНА</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>BASHKINA</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Башкина Ольга Александровна — д. м. н., профессор, заведующий кафедрой факультетской педиатрии</p><p>Астрахань</p></bio><bio xml:lang="en"><p>Olga A. Bashkina — D. Sc. in medicine, Professor</p><p>Astrakhan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5336-4455</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>САМОТРУЕВА</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>SAMOTRUEVA</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Самотруева Марина Александровна — д. м. н., профессор, заведующая кафедрой фармакогнозии, фармацевтической технологии и биотехнологии</p><p>Астрахань</p></bio><bio xml:lang="en"><p>Marina A. Samotrueva — D. Sc. in medicine, Professor</p><p>Astrakhan</p></bio><xref ref-type="aff" rid="aff-1"/></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>Волгоградский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Volgograd State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>07</day><month>09</month><year>2022</year></pub-date><volume>67</volume><issue>5-6</issue><fpage>4</fpage><lpage>9</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ЦИБИЗОВА А.А., ЯСЕНЯВСКАЯ А.Л., ТЮРЕНКОВ И.Н., ОЗЕРОВ А.А., БАШКИНА О.А., САМОТРУЕВА М.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">ЦИБИЗОВА А.А., ЯСЕНЯВСКАЯ А.Л., ТЮРЕНКОВ И.Н., ОЗЕРОВ А.А., БАШКИНА О.А., САМОТРУЕВА М.А.</copyright-holder><copyright-holder xml:lang="en">TSIBIZOVA A.A., YASINEVSKAYA A.L., TYURENKOV I.N., OZEROV A.A., BASHKINA O.A., SAMOTRUEVA M.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.antibiotics-chemotherapy.ru/jour/article/view/922">https://www.antibiotics-chemotherapy.ru/jour/article/view/922</self-uri><abstract><p>Целью данного исследования явилась оценка in vitro и in vivo противомикробной активности в отношении Staphy-lococcus aureus нового производного пиримидина. Противомикробную активность пиримидинового соединения 3 3-(2-Фенил-2-оксоэтил)хиназолин-4(3Н)-он проводили in vitro с использованием тест-культуры штамма S. aureus, выделенного из мокроты пациентов, методом серийных разведений в мясо-пептонном бульоне с последующим формированием рядов с концентрацией производного пиримидина 128; 64; 32; 16; 8; 4; 2 и 1 мкг/мл. В процессе исследования была определена минимально подавляющая концентрация 3-(2-Фенил-2-оксо-этил)хиназолин-4(3Н)-он в отношении S. aureus. Изучение противомикробной активности изучаемого соединения in vivo проводили на модели генерализованной стафилококковой инфекции. Инфекционный процесс моделировали внутрибрюшинным введением S. aureus в дозе ×108 микробных тел мышам 7-недельного возраста. Все лабораторные мыши были разделены на группы: контроль I — животные, получавшие эквивалентный объём воды для инъекций; контроль II — животные, инфицированные S. aureus; группа животных, получавших в качестве лечения препарат сравнения цефтриаксон в дозе 50 мг/кг; опытные животные, получавшие исследуемое соединение в дозе 1/10 от молекулярной массы 26 мг/кг, начиная со дня заражения в течение 7 сут. В процессе эксперимента оценивали выживаемость мышей. По завершении эксперимента проводили подсчёт индекса обсеменённости крови, селезёнки, печени и лёгких. В исследовании была установлена антибактериальная активность производного пиримидина 3-(2-Фенил-2-оксоэтил)хиназолин-4(3Н)-он в условиях in vitro в отношении S. aureus: бактериостатическая активность соединение проявляло в концентрации 16 мкг/кг и бактерицидное — 64 мкг/кг. Результаты оценки противомикробной активности в условиях in vivo показало, что исследуемое соединение способствует повышению выживаемости лабораторных животных и снижению индекса бактериальной обсеменённости внутренних органов и крови в условиях генерализованной стафилококковой инфекции, что указывает на способность формирования противомикробного иммунитета.</p></abstract><trans-abstract xml:lang="en"><p>The aim of this study was to evaluate the in vitro and in vivo antimicrobial activity of a new pyrimidine derivative against Staphylococcus aureus. The assessment of the antimicrobial activity of pyrimidine compound 3 3-(2-Phenyl-2- oxoethyl)quinazoline-4(3H)-one was performed in vitro using a test culture of the S. aureus strain isolated from patients’ sputum by serial dilutions in meat-peptone broth, followed by the formation of sequences with a concentration of pyrimidine derivative 128 mcg/ml; 64 mcg/ml; 32 mcg/ml; 16 mcg/ml; 8 mcg/ml; 4 mcg/ml; 2 mcg/ml; 1 mcg/ml. During the study, the minimum inhibitory concentration of 3-(2-Phenyl-2-oxoethyl)quinazoline-4(3H)-one against S. aureus was determined. The antimicrobial activity of the compound under examination was studied in vivo using a model of generalized staphylococcal infection. The infectious process was modeled via intraperitoneal administration of S. aureus at a dose of ×108 microbial bodies to 7-week-old mice. All laboratory mice were divided into 4 groups: control I — animals receiving an equivalent volume of water for injection; control II — animals infected with S. aureus; comparison group — a group of animals treated with the comparison drug ceftriaxone at a dose of 50 mg/kg; experimental group – animals treated with the studied compound at a dose of 1/10 of the molecular weight of 26 mg/ kg, for 7 days starting from the day of infection. The survival rate of mice during the experiment was evaluated. At the end of the experiment, blood, spleen, liver, and lung contamination indices were calculated. The study established the antibacterial activity of the pyrimidine derivative 3-(2-Phenyl-2-oxoethyl)quinazoline-4(3H)-one under in vitro conditions against S. aureus: the compound showed bacteriostatic activity in the dilution of 16 mcg/kg and bactericidal activity in dilution of 64 mcg/kg. The results of the assessment of antimicrobial activity in vivo showed that the studied compound contributes to the survival of laboratory animals, as well as to a decrease in the index of bacterial contamination of internal organs and blood in conditions of generalized staphylococcal infection, which indicates the ability to form antimicrobial immunity. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>Staphylococcus aureus</kwd><kwd>генерализованная стафилококковая инфекция</kwd><kwd>бактерицидная активность</kwd><kwd>противомикробный иммунитет</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Staphylococcus aureus</kwd><kwd>generalized staphylococcal infection</kwd><kwd>bactericidal activity</kwd><kwd>antimicrobial immunity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено рамках государственного задания Министерства здравоохранения РФ в части проведения НИР по теме «Поиск и разработка перспективных соединений с антибактериальной активностью среди производных пиримидина для создания лекарственных препаратов» 48.2-2021.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Aslam, B., Wang, W., Arshad, M. 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