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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">vedomostiregmed</journal-id><journal-title-group><journal-title xml:lang="ru">Регуляторные исследования и экспертиза лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Regulatory Research and Medicine Evaluation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3034-3062</issn><issn pub-type="epub">3034-3453</issn><publisher><publisher-name>Federal State Budgetary Institution ‘Scientific Centre for Expert Evaluation of Medicinal Products’ of the Ministry of Health of the Russian Federation (FSBI ‘SCEEMP’)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30895/1991-2919-2023-13-1-42-50</article-id><article-id custom-type="elpub" pub-id-type="custom">vedomostiregmed-526</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>ТОКСИКОЛОГИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TOXICITY STUDIES</subject></subj-group></article-categories><title-group><article-title>Влияние нового каппа-агониста (фторфенилпроизводное имидазо[1,2-а]бензимидазола) на геном крыс</article-title><trans-title-group xml:lang="en"><trans-title>Effects of a New Kappa Agonist (Fluorophenyl Derivative of Imidazo[1,2-а]benzimidazole) on the Rat Genome</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0853-0148</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Верле</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Verle</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Верле Ольга Владимировна.</p><p>пл. Павших Борцов, д. 1, Волгоград, 400131</p></bio><bio xml:lang="en"><p>Olga V. Verle.</p><p>1 Pavshikh Bortsov Sq., Volgograd 400131</p></bio><email xlink:type="simple">verle_olga@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/0000-0003-3794-9079</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сиреканян</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Sirekanyan</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сиреканян Анна Грагатовна.</p><p>пл. Павших Борцов, д. 1, Волгоград, 400131</p></bio><bio xml:lang="en"><p>Anna G. Sirekanyan.</p><p>1 Pavshikh Bortsov Sq., Volgograd 400131</p></bio><email xlink:type="simple">annart888@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/0000-0002-2243-5326</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Елисеева</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Eliseeva</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елисеева Наталья Владимировна - кандидат медицинских наук.</p><p>пл. Павших Борцов, д. 1, Волгоград, 400131</p></bio><bio xml:lang="en"><p>Natalya V. Eliseeva - Cand. Sci. (Med.).</p><p>1 Pavshikh Bortsov Sq., Volgograd 400131</p></bio><email xlink:type="simple">nvkirillova@rambler.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/0000-0001-9663-5067</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лифанова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lifanova</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лифанова Юлия Викторовна.</p><p>пл. Павших Борцов, д. 1, Волгоград, 400131</p></bio><bio xml:lang="en"><p>Yuliya V. Lifanova.</p><p>1 Pavshikh Bortsov Sq., Volgograd 400131</p></bio><email xlink:type="simple">j_semenova_pharm@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/0000-0002-7185-4826</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Спасов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Spasov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Спасов Александр Алексеевич - академик РАН, доктор медицинских наук, профессор.</p><p>пл. Павших Борцов, д. 1, Волгоград, 400131</p></bio><bio xml:lang="en"><p>Alexander A. Spasov - Academician of RAS, Dr. Sci. (Med.), Professor.</p><p>1 Pavshikh Bortsov Sq., Volgograd 400131</p></bio><email xlink:type="simple">aspasov@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/0000-0001-9827-9545</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Островский</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ostrovsky</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Островский Олег Владимирович - доктор медицинских наук, профессор.</p><p>пл. Павших Борцов, д. 1, Волгоград, 400131</p></bio><bio xml:lang="en"><p>Oleg V. Ostrovskij - Dr. Sci. (Med.), Professor.</p><p>1 Pavshikh Bortsov Sq., Volgograd 400131</p></bio><email xlink:type="simple">ol.ostr@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Волгоградский государственный медицинский университет Министерства здравоохранения Российской Федерации</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>2023</year></pub-date><pub-date pub-type="epub"><day>18</day><month>01</month><year>2023</year></pub-date><volume>13</volume><issue>1</issue><fpage>42</fpage><lpage>50</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Верле О.В., Сиреканян А.Г., Елисеева Н.В., Лифанова Ю.В., Спасов А.А., Островский О.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Верле О.В., Сиреканян А.Г., Елисеева Н.В., Лифанова Ю.В., Спасов А.А., Островский О.В.</copyright-holder><copyright-holder xml:lang="en">Verle O.V., Sirekanyan A.G., Eliseeva N.V., Lifanova Y.V., Spasov A.A., Ostrovsky O.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://www.vedomostincesmp.ru/jour/article/view/526">https://www.vedomostincesmp.ru/jour/article/view/526</self-uri><abstract><p>В качестве перспективной группы веществ для создания опиоидных анальгетиков с оригинальным механизмом действия без риска развития респираторной депрессии и наркотической зависимости рассматриваются каппа-селективные агонисты. В предыдущих исследованиях было выявлено соединение РУ-1205 (фторфенилпроизводное имидазо[1,2-а]бензимидазола) с установленным в экспериментах in vitro и in vivo каппа-рецепторным механизмом анальгетической активности.</p><sec><title>Цель работы</title><p>Цель работы: оценка влияния дигидрохлорида 9-(2-морфолиноэтил)-2-(4-фторфенил)имидазо[1,2-а]бензимидазола  на  уровень  повреждений  ДНК   у   крыс при однократном подкожном введении.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы: исследование выполнено на половозрелых белых беспородных лабораторных крысах обоего пола. Повреждения ДНК учитывали методом ДНК-комет. Использовалась схема c однократным подкожным введением водного раствора субстанции РУ-1205 в трех дозах: 1, 10 и 100 мг/кг. В качестве положительного контроля использовали метилметансульфонат в дозе 40 мг/кг внутрибрюшинно, в качестве отрицательного  контроля  —  0,9%  раствор  NaCl (100 мкл на 100 г массы животного).</p></sec><sec><title>Результаты</title><p>Результаты: при однократном подкожном введении крысам РУ-1205 дозозависимо не увеличивает показатель %ДНК в хвостах комет. Изменения не носят достоверного характера по сравнению с состоянием генома клеток соответствующих органов/тканей животных, получавших в эти же сроки физиологический раствор. %ДНК в хвостах комет в клетках различных органов/тканей в группах животных отрицательного контроля составляет 1,83–3,82% (медианное значение [25–75%]). Введение генотоксиканта метилметансульфоната в дозе 40 мг/кг приводит к увеличению количества поврежденной ДНК по сравнению с группой отрицательного контроля во всех исследуемых органах и тканях.</p></sec><sec><title>Выводы</title><p>Выводы: в результате исследования генотоксических свойств дигидрохлорида 9-(2-морфолиноэтил)-2-(4-фторфенил)имидазо[1,2-а]бензимидазола установлено, что при однократном подкожном введении крысам в дозах 1, 10, 100 мг/кг РУ-1205 не оказывает повреждающего действия на геном клеток исследуемых органов.</p></sec></abstract><trans-abstract xml:lang="en"><p>Selective kappa-opioid receptor (KOR) agonists are considered a promising group of substances for developing opioid analgesics characterised with an original mechanism of action without the risk of respiratory depression and drug addiction. Previous studies identified a fluorophenyl derivative of imidazo[1,2-a]benzimidazole (RU-1205) with a KOR-based mechanism of analgesic action established in in vitro and in vivo experiments.</p><p>The aim of the study was to assess the effect of 9-(2-morpholinoethyl)-2-(4-fluorophenyl)imidazo[1,2-a]benzimidazole dihydrochloride on the level of DNA damage in rats after a single subcutaneous injection.</p><sec><title>Materials and methods</title><p>Materials and methods. The study was conducted in adult white outbred laboratory rats of both sexes. DNA damage was estimated using the comet assay. The study involved a single subcutaneous injection of an aqueous solution of RU-1205 in three doses: 1, 10, and 100 mg/kg. The authors used intraperitoneal methyl methanesulfonate (40 mg per kg of animal body weight) as a positive control and 0.9% NaCl  (100 μL per 100 g of animal body weight) as a negative control.</p></sec><sec><title>Results</title><p>Results. A single subcutaneous injection of RU-1205 to rats did not produce a significant dose-dependent increase in % tail DNA when compared with the state of   the corresponding organ/tissue cell genome in negative control animals after normal saline administration at the same time points. In the negative control groups, % tail DNA in cells of various organs/tissues ranged from 1.83% to 3.82% (median values [25–75%]). On the contrary, the administration of 40 mg/kg of genotoxic methyl methanesulfonate led to an increase in damaged DNA in all studied organs and tissues when compared with negative control animals.</p></sec><sec><title>Conclusions</title><p>Conclusions. The study of 9-(2-morpholinoethyl)-2-(4-fluorophenyl)imidazo[1,2-a] benzimidazole dihydrochloride genotoxicity demonstrated that a single subcutaneous injection of 1, 10, or 100 mg/kg of RU-1205 to rats did not damage the cell genome of the studied organs.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>повреждение ДНК</kwd><kwd>метод ДНК-комет</kwd><kwd>каппа-опиоидные агонисты</kwd><kwd>производные бензимидазола</kwd><kwd>анальгетики</kwd><kwd>доклинические исследования</kwd></kwd-group><kwd-group xml:lang="en"><kwd>DNA damage</kwd><kwd>comet assay</kwd><kwd>kappa-opioid receptor agonists</kwd><kwd>benzimidazole derivatives</kwd><kwd>analgesics</kwd><kwd>preclinical studies</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">Жанатаев АК, Дурнев АД. Генотоксикология лекарственных средств: современное состояние и перспективы. 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