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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">diaendo</journal-id><journal-title-group><journal-title xml:lang="ru">Сахарный диабет</journal-title><trans-title-group xml:lang="en"><trans-title>Diabetes mellitus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-0351</issn><issn pub-type="epub">2072-0378</issn><publisher><publisher-name>Endocrinology research centre</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14341/DM9499</article-id><article-id custom-type="elpub" pub-id-type="custom">diaendo-9499</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 исследования</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Original Studies</subject></subj-group></article-categories><title-group><article-title>Динамика вариабельности ритма сердца у крыс со стрептозотоциновым сахарным диабетом</article-title><trans-title-group xml:lang="en"><trans-title>Dynamics of heart rate variability in rats with streptozotocin-induced diabetes</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7829-4753</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Морозова</surname><given-names>Мария Павловна</given-names></name><name name-style="western" xml:lang="en"><surname>Morozova</surname><given-names>Maria P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.б.н.</p></bio><bio xml:lang="en"><p>PhD in Biology</p></bio><email xlink:type="simple">mormasha@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8776-6062</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаврилова</surname><given-names>Светлана Анатольевна</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilova</surname><given-names>Svetlana A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.б.н., доцент</p></bio><bio xml:lang="en"><p>PhD in Biology</p></bio><email xlink:type="simple">sgavrilova@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/0000-0002-3382-4458</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванов</surname><given-names>Евгений Викторович</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>Evgeniy V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p></bio><bio xml:lang="en"><p>MD</p></bio><email xlink:type="simple">ivanovev101@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6581-4521</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горбачева</surname><given-names>Анна Максимовна</given-names></name><name name-style="western" xml:lang="en"><surname>Gorbacheva</surname><given-names>Anna M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>клинический ординатор</p></bio><bio xml:lang="en"><p>MD</p></bio><email xlink:type="simple">ann.gorbachewa@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9485-3068</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ржавина</surname><given-names>Екатерина Михайловна</given-names></name><name name-style="western" xml:lang="en"><surname>Rzhavina</surname><given-names>Ekaterina M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p></bio><bio xml:lang="en"><p>MD</p></bio><email xlink:type="simple">rzhavinaekaterina@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2208-5733</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ердяков</surname><given-names>Алексей Константинович</given-names></name><name name-style="western" xml:lang="en"><surname>Erdyakov</surname><given-names>Aleksey K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.б.н., с.н.с.</p></bio><bio xml:lang="en"><p>PhD in Biology, senior research associate</p></bio><email xlink:type="simple">erdiakov@fbm.msu.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/0000-0002-1129-8995</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Джемилова</surname><given-names>Зера Нусредовна</given-names></name><name name-style="western" xml:lang="en"><surname>Dzhemilova</surname><given-names>Zera N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Н.с.</p></bio><bio xml:lang="en"><p>MD</p></bio><email xlink:type="simple">zera1987@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2474-9924</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Артемова</surname><given-names>Екатерина Викторовна</given-names></name><name name-style="western" xml:lang="en"><surname>Artemova</surname><given-names>Ekaterina V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>н.с.</p></bio><bio xml:lang="en"><p>MD</p></bio><email xlink:type="simple">profilaktika@bk.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2474-9924</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Токмакова</surname><given-names>Алла Юрьевна</given-names></name><name name-style="western" xml:lang="en"><surname>Tokmakova</surname><given-names>Alla Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н.</p></bio><bio xml:lang="en"><p>PhD</p></bio><email xlink:type="simple">alla-tokmakova@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0354-5607</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кошелев</surname><given-names>Владимир Борисович</given-names></name><name name-style="western" xml:lang="en"><surname>Koshelev</surname><given-names>Vladimir B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.б.н., профессор</p></bio><bio xml:lang="en"><p>PhD in Biology, Professor</p></bio><email xlink:type="simple">KoshelevVladimir1953@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/0000-0001-6581-4521</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Галстян</surname><given-names>Гагик Радикович</given-names></name><name name-style="western" xml:lang="en"><surname>Galstyan</surname><given-names>Gagik R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><bio xml:lang="en"><p>PhD, Professor</p></bio><email xlink:type="simple">galstyangagik964@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>&lt;p&gt;Московский государственный университет имени М.В. Ломоносова&lt;/p&gt;</institution><country>Россия</country></aff><aff xml:lang="en"><institution>&lt;p&gt;Lomonosov Moscow State University&lt;/p&gt;</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>&lt;p&gt;Национальный медицинский исследовательский центр эндокринологии&lt;/p&gt;</institution><country>Россия</country></aff><aff xml:lang="en"><institution>&lt;p&gt;Endocrinology Research Centre&lt;/p&gt;</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>08</day><month>04</month><year>2019</year></pub-date><volume>22</volume><issue>1</issue><fpage>44</fpage><lpage>52</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Морозова М.П., Гаврилова С.А., Иванов Е.В., Горбачева А.М., Ржавина Е.М., Ердяков А.К., Джемилова З.Н., Артемова Е.В., Токмакова А.Ю., Кошелев В.Б., Галстян Г.Р., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Морозова М.П., Гаврилова С.А., Иванов Е.В., Горбачева А.М., Ржавина Е.М., Ердяков А.К., Джемилова З.Н., Артемова Е.В., Токмакова А.Ю., Кошелев В.Б., Галстян Г.Р.</copyright-holder><copyright-holder xml:lang="en">Morozova M.P., Gavrilova S.A., Ivanov E.V., Gorbacheva A.M., Rzhavina E.M., Erdyakov A.K., Dzhemilova Z.N., Artemova E.V., Tokmakova A.Y., Koshelev V.B., Galstyan G.R.</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.dia-endojournals.ru/jour/article/view/9499">https://www.dia-endojournals.ru/jour/article/view/9499</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. Сахарный диабет (СД) оказывает негативное влияние практически на все системы организма. В основе этого лежит недостаточность кровоснабжения и нарушение трофической функции нервной системы. Тяжелейшим осложнением диабета является формирование синдрома диабетической стопы, в генезе которого присутствуют и сосудистая, и неврологическая составляющие. И если по коррекции сосудистых нарушений при диабете разработаны современные эффективные терапевтические подходы, то повреждение нервной системы изучено недостаточно.</p></sec><sec><title>Цель</title><p>Цель. Исследовать динамику повреждения вегетативной нервной системы (ВНС) на лабораторной модели СД.</p></sec><sec><title>Методы</title><p>Методы. СД у крыс индуцировали инъекцией стрептозотоцина в дозе 65 мг/кг в цитратном буфере (группа СД). Контрольная группа крыс получала цитратный буфер эквивалентно (группа ЦБ). Крысам с СД проводили поддерживающую терапию инсулином в дозе 2 Ед/кг/сут. На 42-е сутки опыта формировали круглую рану диаметром 2 см на спине животных. До моделирования СД, затем на 42, 50, 58 и 66-е сутки его развития у крыс регистрировали электрокардиограмму (ЭКГ) с частотой оцифровки 2 кГц в состоянии спокойного бодрствования и после холодовой пробы (ХП). По 5-минутным фрагментам ЭКГ рассчитывали частоту сердечных сокращений (ЧСС) и параметры вариабельности ритма сердца (ВРС) во временном домене, характеризующие: 1) общую ВРС по SDRR, SDНR, KVRR, КVHR; 2) влияние парасимпатического отдела вегетативной нервной системы (пВНС) по RMSSD и pNN3; 3) вклад симпатического отдела ВНС (сВНС) по SDAvgRR, SDAvgHR. В частотном домене оценивали спектральные показатели: общую мощность спектра – ТР (в диапазоне 0–2,5 Гц), мощности в низко- и высокочастотном диапазонах – LF (0,2–0,8 Гц) и HF (0,8–2,5 Гц), их отношение – LF/HF. Еженедельно оценивали время отдергивания хвоста в температурном болевом тесте (+55°С).</p></sec><sec><title>Результаты</title><p>Результаты. С развитием СД уровень глюкозы в крови возрастал в 4–7 раз по сравнению с нормой. Время реакции у СД-крыс в болевом тесте увеличивалось на 20–30% к концу опыта. На 42-е сутки СД у крыс в покое наблюдали развитие брадикардии (267 уд/мин). Показатели общей ВРС снизились в 2 раза за счет снижения вклада сВНС. Реакция на ХП в группе СД отличается от нормы выраженностью отдельных компонентов структуры ВРС, что говорит о функциональной денервации сердца и развитии диабетической нейропатии.</p></sec><sec><title>Заключение</title><p>Заключение. По мере развития СД наблюдали признаки нейропатии: снижались показатели общей ВРС, изменялось соотношение вкладов сВНС и пВНС в регуляцию ритма сердца, снижалась температурная чувствительность.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background: Diabetes mellitus (DM) has a negative impact on all organs. This is due to insufficiency of blood supply and the disruption of the trophic function of the nervous system. One of the most serious complication of DM is diabetic foot caused be vascular and neurological reasons. Correction of vascular disorders is effectively treated by modern therapeutic approaches, but the damage of nervous system has been studied insufficiently.</p></sec><sec><title>Aims</title><p>Aims: To investigate the dynamics of damage to the vegetative nervous system on the laboratory model of DM.</p></sec><sec><title>Materials and methods</title><p>Materials and methods: DM in rats was induced by injection of streptozotocin at a dose of 65 mg/kg in citrate buffer (DM group). The control group of rats received a citrate buffer equivalent (CB group). Rats with DM were given a maintenance therapy with insulin in a dose of 2 units/kg/day. On 42 days of experience, a round wound with a diameter of 2 cm on the back of the animals was observed. Before the DM simulation, then on the 42, 50, 58 and 66 days of its development, an electrocardiogram (ECG) was recorded in the rats at a frequency of 2 kHz digitising in a state of calm wakefulness and after cold exposure. For 5 minutes ECG fragments, heart rate and heart rate variability (HRV) in the temporal domain were calculated, characterising: 1) the total heart rate variability (tHRV) according to SDRR, SDHR, KVRR and KVHR; 2) the effect of the parasympathetic department of the autonomic nervous system (aANS) for RMSSD and pNN3; 3) the contribution of the sympathetic department of the ANS (sANS) by SDAvgRR, SDAvgHR. The spectral parameters were estimated in the frequency domain: the total power of the spectrum is TR (range: 0–2.5 Hz), the powers in the low and high frequency ranges are LF (range: 0.2–0.8 Hz) and HF (range: 0.8–2.5 Hz) LF/HF. Weekly, the tail withdrawal time was measured in a temperature pain test (55°C).</p></sec><sec><title>Results</title><p>Results: During the development of diabetes, the level of glucose in the blood increased 4–7 times compared with the normal level. The reaction time of the pain test in rats with DM increased by 20%–30% at the end of the experiment. At 42 days, the development of bradycardia (267 beats/min) was observed in rats with DM. The indicators of tHRV decreased by a factor of 2 due to a decrease in the contribution of sANS. The reaction to CP in the SD group differs from the norm by the severity of the individual components of the HRV structure, which indicates functional denervation of the heart and the development of diabetic neuropathy.</p></sec><sec><title>Conclusions</title><p>Conclusions: As the diabetes progressed, signs of neuropathy were observed. The overall HRV parameters decreased, the ratio of the contributions of sANS and pANS to the regulation of heart rate changed, and the temperature sensitivity decreased.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сахарный диабет</kwd><kwd>нейропатия</kwd><kwd>стрептозотоцин</kwd><kwd>вариабельность ритма сердца</kwd><kwd>крысы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>diabetes mellitus</kwd><kwd>neuropathy</kwd><kwd>streptozocin</kwd><kwd>heart rate variability</kwd><kwd>rats</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа поддержана грантом РНФ № 16-15-10365</funding-statement><funding-statement xml:lang="en">financed by Russian science foundation № 16-15-10365</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">Boulton AJ. Diabetic neuropathy and foot complications. 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