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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">microcirculation</journal-id><journal-title-group><journal-title xml:lang="ru">Регионарное кровообращение и микроциркуляция</journal-title><trans-title-group xml:lang="en"><trans-title>Regional blood circulation and microcirculation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-6655</issn><issn pub-type="epub">2712-9756</issn><publisher><publisher-name>Academician I.P. Pavlov First St. Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24884/1682-6655-2019-18-4-65-71</article-id><article-id custom-type="elpub" pub-id-type="custom">microcirculation-647</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 СТАТЬИ (ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES (EXPERIMENTAL INVESTIGATIONS)</subject></subj-group></article-categories><title-group><article-title>Нейропротекторная эффективность креатин-аминокислотного комплекса в модели ишемического инсульта у крыс</article-title><trans-title-group xml:lang="en"><trans-title>Neuroprotective efficiency of creatine-aminoacid complex compound in the model of ischemic stroke in rats</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>Муровец</surname><given-names>В. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Mourovets</surname><given-names>V. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>биол. наук, старший научный сотрудник</p></bio><bio xml:lang="en"><p>PhD, senior research scientists</p></bio><email xlink:type="simple">mourovets@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>Ленцман</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lentsman</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, старший научный сотрудник</p></bio><bio xml:lang="en"><p>MD, PhD, senior research scientists</p></bio><email xlink:type="simple">mlensman@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение науки «Институт физиологии имени И. П. Павлова» Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov Institute of Physiology of Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2019</year></pub-date><volume>18</volume><issue>4</issue><fpage>65</fpage><lpage>71</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Муровец В.О., Ленцман М.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Муровец В.О., Ленцман М.В.</copyright-holder><copyright-holder xml:lang="en">Mourovets V.O., Lentsman M.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.microcirc.ru/jour/article/view/647">https://www.microcirc.ru/jour/article/view/647</self-uri><abstract><sec><title>Введение</title><p>Введение. По данным ВОЗ, инсульт и его последствия занимают 2-е место по смертности после ишемической болезни сердца. Сотни клинических исследований дали лишь одно разрешенное к применению средство – внутривенное введение рекомбинантного активатора плазминогена, т. е. средство для реканализации. Средства для эффективной нейропротекции, несмотря на огромное число исследований, так и остаются не найденными.</p><p>Цель работы – in vivo изучение нейропротекторного действия нового амида креатина (AC-PfA) в отношении неврологических и когнитивных нарушений в модели ишемического инсульта у крыс.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Модель инсульта (ФИМ) воспроизводили путем окклюзии проксимального участка средней мозговой артерии. Неврологические нарушения оценивали по латентности инициации движения (ЛИД), для исследования когнитивных нарушений использовалась пространственная версия водного теста Морриса. В исследовании использованы 4 группы животных: (1) негативного контроля (ФИМ с в/б-введением физиологического раствора); (2) позитивного контроля (ФИМ с управляемой гипотермией); (3) исследуемого вещества (ИВ, ФИМ с в/б-введением AC-PfA) и (4) ложнооперированных животных.</p></sec><sec><title>Результаты</title><p>Результаты. По сравнению с негативным контролем животные, получавшие AC-PfA, демонстрировали более низкую латентность инициации движений уже через день после ФИМ, что свидетельствует о лучшем функциональном состоянии базальных ганглиев и ассоциативных областей коры. Гипотермия во время ФИМ полностью устраняла эффект увеличения ЛИД. В водном тесте Морриса животные, получавшие AC-PfA, в отличие от группы негативного контроля, демонстрировали снижение времени поиска платформы по ходу обучения, а в пробной попытке статистически достоверно отличались по таким показателям, как время на периферии и число пересечений места локализации платформы. Гипотермия не была столь эффективна – животные этой группы обучались медленнее, хотя в пробную попытку уже не отличались от группы с ИВ.</p></sec><sec><title>Выводы</title><p>Выводы. Новое производное креатина – его комплексное соединение с аминокислотами – обладает выраженной лечебной эффективностью в отношении когнитивных нарушений, а также улучшает функциональное состояние систем контроля двигательной активности животных после инсульта. При этом по силе положительного воздействия оно превосходит или приближается к воздействию гипотермии, известной как эффективный нейропротекторный прием.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. According to WHO data, stroke and its consequences rank second in mortality after coronary heart disease. Hundreds of clinical trials have yielded only one tool that can be used – intravenous administration of recombinant plasminogen activator, i.e. recanalization agent. The means for effective neuroprotection, despite the huge number of studies, remain not found.</p><p>The aim of the work was in vivo study of neuroprotective effect of creatine amide (AC-PfA) on neurological and cognitive impairment in a model of ischemic stroke in rats.</p></sec><sec><title>Material and methods</title><p>Material and methods. The model of stroke (FCI) was reproduced by occlusion of middle cerebral artery proximal segment. Neurological deficits were assessed by the latency of movement initiation (LMI), cognitive impairments – by a spatial version of Morris water maze. Four groups of animals were used: (1) negative control (FCI with administration of saline), (2) positive control (FCI with controlled hypothermia), (3) test substance (FCI with administration of AC-PfA) and (4) sham-operated animals.</p></sec><sec><title>Results</title><p>Results. Compared with negative control group, animals восtreated with AC-PfA showed lower latency of movement initiation a day after FCI, what indicates a better functional state of the basal ganglia and associative areas of the cortex. Hypothermia during FCI completely eliminated the effect of increasing LMI. In Morris water maze, animals treated with AC-PfA, in contrast to the negative control group, showed a decrease in platform search time during training, and in a probe trial differed statistically significantly in peripheral searching time and the number of crossings of the platform localization site. Hypothermia was not so effective, although not statistically significantly differs from the group with AC-PfA.</p></sec><sec><title>Conclusions</title><p>Conclusions. A new derivative of creatine has a pronounced therapeutic efficacy in relation to cognitive impairment, and improves the functional state of the systems, controlling the motor activity of animals. At the same time, it exceeds or approaches the effects of hypothermia, known as an effective neuroprotective technique.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>инсульт</kwd><kwd>прижизненные модели инсульта</kwd><kwd>крысы</kwd><kwd>нейропротекция</kwd><kwd>креатин</kwd><kwd>аналоги креатина</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stroke</kwd><kwd>in-vivo stroke models</kwd><kwd>rats</kwd><kwd>neuroprotection</kwd><kwd>creatine</kwd><kwd>creatine analogs</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">World Health Organization Global Health Observatory (GHO) data; Mortality and global health estimates. Available at: https://www.who.int/gho/mortality_burden_disease/en/ (accessed: 04.06.2019).</mixed-citation><mixed-citation xml:lang="en">World Health Organization Global Health Observatory (GHO) data; Mortality and global health estimates. 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