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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">scbmt</journal-id><journal-title-group><journal-title xml:lang="ru">БИОМЕДИЦИНА</journal-title><trans-title-group xml:lang="en"><trans-title>Journal Biomed</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-5982</issn><issn pub-type="epub">2713-0428</issn><publisher><publisher-name>Scientific center of biomedical technologies of Federal Medical and Biological Agency</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33647/2074-5982-18-3-90-94</article-id><article-id custom-type="elpub" pub-id-type="custom">scbmt-1417</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>БИОРЕГУЛЯТОРЫ В МЕДИЦИНСКИХ ТЕХНОЛОГИЯХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOREGULATORS IN MEDICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>С-пептид проинсулина улучшает метаболические и гормональные показатели у крыс с диабетом типа 2 с нормальным, но не повышенным, уровнем инсулина</article-title><trans-title-group xml:lang="en"><trans-title>Proinsulin C-peptide Improves metabolic and Hormonal Parameters in Rats with Type 2 Diabetes Mellitus Having Normal but not Elevated Insulin Levels</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>Деркач</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Derkach</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Деркач Кира Викторовна - кандидат биологических наук.</p><p>194223, Санкт-Петербург, пр. Тореза, 44.</p></bio><bio xml:lang="en"><p>Kira V. Derkach - Cand. Sci. (Biol.), Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences.</p><p>194223, Saint Petersburg, Thoreza Ave., 44.</p></bio><email xlink:type="simple">derkatch_k@list.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>Бондарева</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Bondareva</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бондарева Вера Михайловна – кандидат биологических наук.</p><p>194223, Санкт-Петербург, пр. Тореза, 44.</p></bio><bio xml:lang="en"><p>Vera M. Bondareva - Cand. Sci. (Biol.), Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences.</p><p>194223, Saint Petersburg, Thoreza Ave., 44.</p></bio><email xlink:type="simple">bondver@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>Басова</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Basova</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Басова Наталья Евгеньевна – кандидат биологических наук.</p><p>194223, Санкт-Петербург, пр. Тореза, 44.</p></bio><bio xml:lang="en"><p>Natalia E. Basova - Cand. Sci. (Biol.), Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences.</p><p>194223, Saint Petersburg, Thoreza Ave., 44.</p></bio><email xlink:type="simple">basovnat@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>Шпаков</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Shpakov</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шпаков Александр Олегович – доктор биологических наук.</p><p>194223, Санкт-Петербург, пр. Тореза, 44.</p></bio><bio xml:lang="en"><p>Alexander O. Shpakov - Dr. Sci. (Biol.), Seche-nov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences.</p><p>194223, Saint Petersburg, Thoreza Ave., 44.</p></bio><email xlink:type="simple">alex_shpakov@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФГБУН Институт эволюционной физиологии и биохимии им. И.М. Сеченова РАН<country>Россия</country></aff><aff xml:lang="en">Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>17</day><month>10</month><year>2022</year></pub-date><volume>18</volume><issue>3</issue><fpage>90</fpage><lpage>94</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Деркач К.В., Бондарева В.М., Басова Н.Е., Шпаков А.О., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Деркач К.В., Бондарева В.М., Басова Н.Е., Шпаков А.О.</copyright-holder><copyright-holder xml:lang="en">Derkach K.V., Bondareva V.M., Basova N.E., Shpakov A.O.</copyright-holder><license 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://journal.scbmt.ru/jour/article/view/1417">https://journal.scbmt.ru/jour/article/view/1417</self-uri><abstract><p>При сахарном диабете 2-го типа (СД2) нарушаются функции инсулиновой системы мозга, что обусловлено ослаблением транспорта инсулина через гематоэнцефалический барьер вследствие инсулиновой резистентности. Для коррекции инсулинового дефицита в мозге может быть использован интраназально вводимый инсулин, действие которого усиливается интраназально вводимым С-пептидом. Целью работы было изучить влияние обработки крыс с гиперинсулинемичным и нормоинсулинемичным СД2 с помощью интраназально вводимого С-пептида (36 мкг/крысу/сут.), интраназально вводимого инсулина (20 мкг/крысу/сут.) и их комплекса на метаболические и гормональные показатели. При нормоинсулинемичном СД2 интраназально вводимый С-пептид ослаблял дефицит тиреоидных гормонов и усиливал восстанавливающие эффекты интраназально вводимого инсулина на чувствительность к глюкозе, инсулину и лептину. При гиперинсулинемичном СД2 интраназально вводимый С-пептид был неэффективен, а в комбинации с интраназально вводимым инсулином — ослаблял восстанавливающие эффекты последнего. Тем самым интраназально вводимый С-пептид и его комбинация с интраназально вводимым инсулином эффективны для восстановления метаболических и гормональных показателей при нормоинсулинемичном, но не гиперинсулинемичном СД2.</p></abstract><trans-abstract xml:lang="en"><p>In type 2 diabetes mellitus (DM2), the impaired functions of the brain insulin system are associated with the weakened insulin transport through the blood-brain barrier due to insulin resistance. Insulin deficiency in the brain can be corrected by intranasal administration of insulin (II), whose effect may be enhanced by intranasal administration of C-peptide (ICP). In this work, we study the effect of treating hyperinsulinemic and normoinsulinemic DM2 rats with ICP (36 µg/rat/day), II (20 µg/rat/day) and ICP+II on metabolic and hormonal parameters. In normoinsulinemic DM2, ICP attenuated thyroid hormone deficiency and enhanced the restorative effects of II on glucose, insulin, and leptin sensitivity. In hyperinsulinemic DM2, ICP was ineffective, and its combination with II weakened the restorative effects of II. Thus, ICP and its combination with II are effective in restoring metabolic and hormonal parameters in normoinsulinemic, but not hyperinsulinemic, DM2.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>инсулин</kwd><kwd>С-пептид проинсулина</kwd><kwd>интраназальное введение</kwd><kwd>диабет 2-го типа</kwd><kwd>ожирение</kwd><kwd>тиреоидные гормоны</kwd></kwd-group><kwd-group xml:lang="en"><kwd>insulin</kwd><kwd>proinsulin C-peptide</kwd><kwd>intranasal administration</kwd><kwd>type 2 diabetes mellitus</kwd><kwd>obesity</kwd><kwd>thyroid hormones</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Поддержано государственным заданием Минобрнауки России № 075-0152-22-00.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>State assignment of Ministry of Science and Higher Education No. 075-0152-22-00.</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">Derkach K., Zakharova I., Zorina I., Bakhtyukov A., Romanova I., Bayunova L., Shpakov A. 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