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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10394</article-id><article-id pub-id-type="doi">10.32607/20758251-2017-9-2-94-102</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Low-Molecular-Weight NGF Mimetic Corrects the Cognitive Deficit and Depression-like Behavior in Experimental Diabetes</article-title><trans-title-group xml:lang="ru"><trans-title>Низкомолекулярный миметик NGF корригирует когнитивный дефицит и депрессивные проявления при экспериментальном диабете</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ostrovskaya</surname><given-names>R. U.</given-names></name><name xml:lang="ru"><surname>Островская</surname><given-names>Р. У.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rita.ostrovskaya@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yagubova</surname><given-names>S. S.</given-names></name><name xml:lang="ru"><surname>Ягубова</surname><given-names>С. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rita.ostrovskaya@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gudasheva</surname><given-names>T. A.</given-names></name><name xml:lang="ru"><surname>Гудашева</surname><given-names>T. A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rita.ostrovskaya@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Seredenin</surname><given-names>S. B.</given-names></name><name xml:lang="ru"><surname>Середенин</surname><given-names>С. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rita.ostrovskaya@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">V.V. Zakusov Institute of Pharmacology</institution></aff><aff><institution xml:lang="ru">НИИ фармакологии им. В.В. Закусова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2017</year></pub-date><volume>9</volume><issue>2</issue><issue-title xml:lang="en">VOL 9, NO2 (2017)</issue-title><issue-title xml:lang="ru">ТОМ 9, №2 (2017)</issue-title><fpage>94</fpage><lpage>102</lpage><history><date date-type="received" iso-8601-date="2020-01-17"><day>17</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2017, Ostrovskaya R.U., Yagubova S.S., Gudasheva T.A., Seredenin S.B.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2017, Островская Р.У., Ягубова С.С., Гудашева T.A., Середенин С.Б.</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="en">Ostrovskaya R.U., Yagubova S.S., Gudasheva T.A., Seredenin S.B.</copyright-holder><copyright-holder xml:lang="ru">Островская Р.У., Ягубова С.С., Гудашева T.A., Середенин С.Б.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://actanaturae.ru/2075-8251/article/view/10394">https://actanaturae.ru/2075-8251/article/view/10394</self-uri><abstract xml:lang="en"><p>Based on the comorbidity of diabetes, depression, and dementia and recognizing that a deficiency of the nerve growth factor (NGF) is involved in all of these kinds of pathologies, we studied the effect of the mimetic of dimeric dipeptide NGF loop 4, GK-2, on a model of streptozotocin-induced type 2 diabetes in C57Bl/6 mice. GK-2 [hexamethylenediamide bis-(N-monosuccinyl-glutamyl-lysine)] was synthesized at the V.V. Zakusov Scientific Research Institute of Pharmacology. The study revealed the ability of GK-2 to ameliorate hyperglycemia induced by streptozotocine (STZ 100 mg/kg i.p.) in C57Bl/6 mice, to restore learning ability in the Morris Water Maze test, and to overcome depression after both intraperitoneal (0.5 mg/kg) and peroral (5 mg/kg) long-term administration. The presence of the listed properties and their preservation in the case of peroral treatment determines the prospects of research. Taking into account the previous findings on the ability of GK-2 to selectively activate PI3K/Akt, these data suggest that Akt-signaling is sufficient for pancreatic beta cell function. GK-2 has been shown to exhibit pronounced neuroprotective activity. The coexistence of neuroprotective and antidiabetic effects is in agreement with the fundamental concept holding that the function of neurons and pancreatic beta cells is controlled by similar mechanisms.</p></abstract><trans-abstract xml:lang="ru"><p>Коморбидность сахарного диабета с когнитивными нарушениями и депрессивно-подобными состояниями, а также роль дефицита фактора роста нервов (NGF) в патогенезе этих состояний хорошо известна. Нами изучено действие соединения ГК-2 (гексаметилендиамид-бис-(N-моносукцинил-глутамил-лизина)), оригинального димерного аналога NGF, на мышей C57Bl/6 со стрептозотоциновым диабетом типа 2. ГК-2, сконструированный ранее в НИИ фармакологии на основе структуры β-изгиба 4-й петли NGF, обладает способностью имитировать эффекты нативного NGF, в том числе нейропротективный. Показано, что ГК-2 как при внутрибрюшинном (в дозе 0.5 мг/кг), так и пероральном (в дозе 5 мг/кг) введении устраняет гипергликемию, вызванную стрептозотоцином (100 мг/кг), восстанавливает число (%) животных, обучившихся в водном лабиринте Морриса, и ослабляет выраженность депрессивноодобного состояния. Перспективность фармакологической разработки ГК-2 обусловлена сочетанием его антидиабетического эффекта с положительным воздействием на когнитивные функции и антидепрессивные свойства, а также сохранением активности при пероральном введении. ГК-2, как показано ранее, селективно активирует один из двух основных сигнальных путей, путь PI3K/Аkt, поэтому можно предположить, что Аkt-сигнализации достаточно для поддержания функционирования β-клеток. Наличие у ГК-2 как нейропротективной, так и антидиабетической активности согласуется с фундаментальной концепцией общности механизмов регуляции функций нейронов и β-клеток поджелудочной железы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>depression</kwd><kwd>diabetes</kwd><kwd>dipeptide NGF mimetic</kwd><kwd>learning</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>дипептидный миметик NGF</kwd><kwd>диабет</kwd><kwd>депрессия</kwd><kwd>обучаемость</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was partially supported by the Russian Science Foundation (project No. 14-15-00596).</funding-statement><funding-statement xml:lang="ru">Работа выполнена при частичной поддержке Российского научного фонда (проект № 14-15-00596).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>[1] Levi-Montalcini R. // Science. 1987, V.237, P.1154-1162</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>[2] Yamamoto M., Sobue G., Yamamoto K., Terao S., Mitsuma T. // Neurochem. 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