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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">sibmed</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский научный медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Сибирский научный медицинский журнал</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-2512</issn><issn pub-type="epub">2410-2520</issn><publisher><publisher-name>ИЦиГ СО РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/SSMJ20210304</article-id><article-id custom-type="elpub" pub-id-type="custom">sibmed-599</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>МЕДИКО-БИОЛОГИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOMEDICINE</subject></subj-group></article-categories><title-group><article-title>Влияние новых производных 3-гидроксипиридина на развитие отека мозга при бактериальном гнойном менингите в экспериментальных условиях</article-title><trans-title-group xml:lang="en"><trans-title>The effect of new derivatives of 3-hydroxypyridine on the development of brain edema in bacterial purulent meningitis in experimental conditions</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2538-2696</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Агаркова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Agarkova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алина Анатольевна Агаркова</p><p>308015, Белгород, ул. Победы, 85</p></bio><bio xml:lang="en"><p>Alina A. Agarkova</p><p>308015, Belgorod, Pobedy str., 85</p></bio><email xlink:type="simple">lina.agarkowa@yandex.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/0000-0002-1493-3376</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Покровский</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pokrovsky</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Владимирович Покровский - доктор медицинских наук, профессор.</p><p>308015, Белгород, ул. Победы, 85</p></bio><bio xml:lang="en"><p>Mikhail V. Pokrovsky - doctor of medical sciences, professor.</p><p>308015, Belgorod, Pobedy str., 85</p></bio><email xlink:type="simple">mpokrovsky@yandex.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/0000-0002-2434-994X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колесниченко</surname><given-names>П. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolesnichenko</surname><given-names>P. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павел Дмитриевич Колесниченко - кандидат медицинских наук.</p><p>308015, Белгород, ул. Победы, 85</p></bio><bio xml:lang="en"><p>Pavel D. Kolesnichenko - candidate of medical sciences.</p><p>308015, Belgorod, Pobedy str., 85</p></bio><email xlink:type="simple">kolesnichenko_p@bsu.edu.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/0000-0003-3822-4213</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нестеров</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nesterov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аркадий Витальевич Нестеров - кандидат медицинских наук.</p><p>308015, Белгород, ул. Победы, 85</p></bio><bio xml:lang="en"><p>Arkady V. Nesterov - candidate of medical sciences.</p><p>308015, Belgorod, Pobedy str., 85</p></bio><email xlink:type="simple">nesterov_a@bsu.edu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белгородский государственный национальный исследовательский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Belgorod State National Research University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>16</day><month>06</month><year>2021</year></pub-date><volume>41</volume><issue>3</issue><fpage>32</fpage><lpage>37</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Агаркова А.А., Покровский М.В., Колесниченко П.Д., Нестеров А.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Агаркова А.А., Покровский М.В., Колесниченко П.Д., Нестеров А.В.</copyright-holder><copyright-holder xml:lang="en">Agarkova A.A., Pokrovsky M.V., Kolesnichenko P.D., Nesterov A.V.</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://sibmed.elpub.ru/jour/article/view/599">https://sibmed.elpub.ru/jour/article/view/599</self-uri><abstract><p>Бактериальный гнойный менингит (БГМ) является одним из наиболее тяжелых инфекционно-воспалительных заболеваний нервной системы, который характеризуется высокой летальностью и частым развитием остаточного неврологического дефицита. Отек и набухание головного мозга - наиболее частая причина смерти больных нейроинфекциями. Наиболее часто отек мозга развивается при пневмококковом менингите, который отличается самой высокой летальностью среди всех бактериальных менингитов. Целью нашей работы явилось изучение влияния новых производных 3-гидроксипиридина, 2-этил-6-метил-3-гидроксипиридиния 2,6-дихлорфенил(амино) фенилэтановой кислоты (ЭМГДФК) и бис(2-этил-6-метил-3-гидроксипиридиния) 2,6-дихлорфенил(амино)фе-нилэтановой кислоты (Б-ЭМГДФК), на степень отека мозга при моделировании БГМ в условиях эксперимента.</p><sec><title>Материал и методы</title><p>Материал и методы. БГМ моделировали путем введения в субарахноидальное пространство головного мозга крыс суспензии, содержащей Streptococcus pneumoniae в концентрации 5 х 109 КОЕ/мл. Степень выраженности отека мозга оценивали путем определения содержания общей воды, свободной и связанной ее фракций в мозговой ткани, а также коэффициента гидратации (чем он меньше, тем более выражен отек головного мозга). Содержание фракций воды в мозговой ткани определяли термогравиметрическим методом.</p><p>Результаты и их обсуждение. Через 24 часа после индукции менингита увеличивается содержание свободной воды и уменьшается количество связанной, что свидетельствует о развитии отека головного мозга. Коэффициент гидратации в группах, получавших ЭМГДФК в дозах 50 и 25 мг/кг, соответственно на 11,5 и 15,3 % больше, чем в контрольной (p&lt;0,05). У животных, получавших Б-ЭМГДФК в дозах 50, 25 и 12,5 мг/кг, коэффициент гидратации больше относительно контрольной группы на 23, 26,9 и 19,2 % соответственно (p&lt;0,05).</p></sec><sec><title>Заключение</title><p>Заключение. Наименее выражен отек мозга при применении Б-ЭМГДФК во всех трех исследуемых дозировках (50, 25 и 12,5 мг/кг). Введение ЭМГДФК в дозах 50 и 25 мг/кг также способствовало уменьшению степени отека мозга при моделировании БГМ в экспериментальных условиях.</p></sec></abstract><trans-abstract xml:lang="en"><p>Bacterial purulent meningitis (BPM) is one of the most severe infectious and inflammatory diseases of the nervous system, which is characterized by high mortality and frequent development of residual neurological deficits. Edema and swelling of the brain is the most common cause of death in patients with neuroinfections. Most often, brain edema develops in pneumococcal meningitis (PM), which has the highest mortality rate among all bacterial meningitis. The aim of our work was to study the effect of new derivatives of 3-hydroxypyridine, 2-ethyl-6-methyl-3-hydroxypyridinium 2.6-dichlorophenyl (amino)phenylethanoic acid (EMHDA) and bis(2-ethyl-6-methyl-3-hydroxypyridinium) 2.6-dichlo-rophenyl (amino)phenylethanoic acid (B-EMHDA), on the degree of brain edema in the simulation of BPM in experimental conditions.</p><sec><title>Material and methods</title><p>Material and methods. BPM was modeled by injecting a suspension containing Streptococcus pneumoniae at a concentration of 5 x 109 CFU/ml into the subarachnoid space of the brain. The degree of severity of cerebral edema in rats was assessed by determining the content of total water, free and bound fractions in the brain tissue, as well as the hydration coefficient. The lower the hydration coefficient, the more pronounced the cerebral edema. Determination of the content of water fractions in brain tissue and blood was carried out by the thermogravimetric method.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. 24 hours after the induction of meningitis, the free water content increases and the amount of bound water decreases. That testifies to the development of cerebral edema. Hydration coefficient in the group treated with EMHDA at a dose of 50 mg/kg, increased by 11.5 % relative to the control group; in the group receiving EMHDA at a dose of 25 mg/kg, increased by 15.3 % compared to the control group (p&lt;0.05). Hydration coefficient in the group treated with B-EMHDA at a dose of 50 mg/kg, increased by 23 % relative to the control group; in the group receiving B-EMHDA at a dose of 25 mg/kg, increased by 26.9 % compared to the control group; and the group receiving B-EM-HDA at a dose of 12.5 mg/kg was 19.2 % higher relative to the control group (p&lt;0.05).</p></sec><sec><title>Conclusion</title><p>Conclusion. Brain edema is least pronounced when using B-EMHDA at all three studied dosages - 50, 25 and 12.5 mg/kg. Injection of EMHDA at doses of 50 mg/kg and 25 mg/kg also helped to reduce the degree of brain edema when modeling BPM in experimental conditions.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>бактериальный гнойный менингит</kwd><kwd>пневмококковый менингит</kwd><kwd>отек головного мозга</kwd><kwd>крысы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bacterial purulent meningitis</kwd><kwd>pneumococcal meningitis</kwd><kwd>cerebral edema</kwd><kwd>rats</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">Busl K.M., Bleck T.P. Bacterial infections of the central nervous system. Curr. Infect. Dis. Rep. 2013; 15 (6): 612-630. doi: 10.1007/s11908-013-0384-7</mixed-citation><mixed-citation xml:lang="en">Busl K.M., Bleck T.P. Bacterial infections of the central nervous system. Curr. Infect. Dis. 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