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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">10.24884/1682-6655-2021-20-2-59-64</article-id><article-id custom-type="elpub" pub-id-type="custom">microcirculation-948</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>Адаптация к периодической гипоксии предупреждает снижение плотности сосудистой сети мозга крыс при экспериментальной болезни Альцгеймера</article-title><trans-title-group xml:lang="en"><trans-title>Adaptation to intermittent hypoxia prevents the decrease in cerebral vascular density in rats with experimental Alzheimer’s disease</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>Горячева</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Goryacheva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Горячева Анна Владимировна – научный сотрудник</p><p>125315, Москва, ул. Балтийская, д. 8 </p></bio><bio xml:lang="en"><p>Goryacheva Anna V. – researcher</p><p>8, Baltiyskaya str., Moscow, 125315</p></bio><email xlink:type="simple">goryacheva@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>Барсков</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Barskov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Барсков Игорь Валентинович – канд. мед. наук, доцент кафедры морфологии и патологии и зав. межкафедральной морфологической лабораторией </p><p>107564, Москва, ул. Краснобогатырская, д. 2, стр. 2, подъезд 22</p></bio><bio xml:lang="en"><p>Barskov Igor V. – MD, associate Professor of the Department of Morphology and Pathology and head of Interdepartmental laboratory of Morphology </p><p>2, Krasnobogatyrskaya Str. Bldg. 2, Moscow, 107564</p></bio><email xlink:type="simple">ibarskov62@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дауни</surname><given-names>Г. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Downey</surname><given-names>H. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дауни Гарри Фред – регент-профессор; консультант</p><p>3500 Бульвар Кэмп Боуи, Форт-Уэрт 76107</p><p>454080, г. Челябинск, пр. Ленина, д. 76</p></bio><bio xml:lang="en"><p>Downey Harry Fred – PhD, Reagents Professor;  Consultant  </p><p>3500 Camp Bowie Blvd, Fort Worth 76107</p><p>76, Lenina pr., Chelyabinsk, 454080</p></bio><email xlink:type="simple">freddowney@yahoo.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Манухина</surname><given-names>Е. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Manukhina</surname><given-names>Eu. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Манухина Евгения Борисовна – д-р биол. наук, профессор, главный научный сотрудник; внештатный научный сотрудник; адъюнкт-профессор </p><p>125315, Москва, ул. Балтийская, д. 8</p><p>3500 Бульвар Кэмп Боуи, Форт-Уэрт 76107, США</p><p>454080, г. Челябинск, пр. Ленина, д. 76</p></bio><bio xml:lang="en"><p>Manukhina Eugenia B., PhD, DSc, Professor, Head Researcher; Leading Researcher; Adjunct Professor</p><p>8, Baltiyskaya str., Moscow, 125315</p><p>3500 Camp Bowie Blvd, Fort Worth 76107, USA</p><p>76, Lenina pr., Chelyabinsk, 454080</p></bio><email xlink:type="simple">manukh@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Научно-исследовательский институт общей патологии и патофизиологии»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of General Pathology and Pathophysiology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский медицинский университет «Реавиз»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State University «Reaviz»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Центр медицинских наук Университета Северного Техаса; Федеральное государственное автономное образовательное учреждение высшего образования «Южно-Уральский государственный университет»</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>University of North Texas Health Science Center; South Ural State University</institution><country>United States</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Научно-исследовательский институт общей патологии и патофизиологии»; Центр медицинских наук Университета Северного Техаса; Федеральное государственное автономное образовательное учреждение высшего образования «Южно-Уральский государственный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of General Pathology and Pathophysiology; University of North Texas Health Science Center; South Ural State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>13</day><month>06</month><year>2021</year></pub-date><volume>20</volume><issue>2</issue><fpage>59</fpage><lpage>64</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Горячева А.В., Барсков И.В., Дауни Г.Ф., Манухина Е.Б., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Горячева А.В., Барсков И.В., Дауни Г.Ф., Манухина Е.Б.</copyright-holder><copyright-holder xml:lang="en">Goryacheva A.V., Barskov I.V., Downey H.F., Manukhina E.B.</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/948">https://www.microcirc.ru/jour/article/view/948</self-uri><abstract><p>Введение. При болезни Альцгеймера (БА) отмечается снижение плотности сосудистой сети (ПСС) в мозге, что нарушает кровоснабжения нейронов и может способствовать прогрессированию БА. Ранее мы показали, что предварительная адаптация к периодической гипобарической гипоксии (АПГ) предупреждает нарушение памяти и дегенерацию кортикальных нейронов у крыс с экспериментальной БА (ЭБА). Цель исследования состояла в проверке предположения о том, что АПГ способна предупреждать снижение ПСС в мозге, вызванное ЭБА. Материалы и методы. ЭБА моделировали путем стереотаксического введения в n. basalis magnocellularis билатерально нейротоксичного пептидного фрагмента β-амилоида (А) (25–35). АПГ проводили в барокамере на симулированной высоте 4000 м, по 4 ч в день, 14 дней. Сосуды мозга окрашивали путем транскардиальной перфузии тушью; срезы мозга окрашивали 0,3 %-м крезиловым фиолетовым по методу Ниссля. ПСС подсчитывались в коре и гиппокампе с использованием программы «Infinity Analysis». Результаты. У крыс с ЭБА ПСС была достоверно снижена в гиппокампе (13,3±0,9 vs 17,8±1,0 сосуда в поле зрения (ПЗ), p&lt;0,03) и в коре (17,3±1,5 vs 22,3±1,3 в ПЗ, p&lt;0,03). АПГ увеличила ПСС в гиппокампе до 27,0±3,5 в ПЗ (p=0,01) и в коре до 26,0±1,1 в ПЗ (p&lt;0,03). У крыс с ЭБА после АПГ ПСС достоверно не отличалась от контроля как в гиппокампе, так и в коре. По-видимому, АПГ стимулирует ангиогенез за счет экспрессии сосудистого эндотелиального фактора роста, опосредованной гипоксическим фактором HIF- 1α, а также экспрессии и активности антиоксидантных ферментов. Вывод. Одним из механизмов благоприятного эффекта АПГ при нейродегенерации, связанной с БА, является сохранение способности к компенсаторному ангиогенезу в мозге.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Patients with Alzheimer’s disease (AD) have reduced cerebral vascular density (VD), which impairs blood flow to neurons and may contribute to progression of AD. Earlier we showed that prior adaptation to intermittent hypobaric hypoxia (IHH) prevented memory loss and degeneration of cortical neurons in rats with experimental AD (EAD). The aim of this study was to test if IHH might prevent EAD-induced vascular rarefaction in rats. Materials and methods. EAD was induced with bilateral injection of neurotoxic beta-amyloid peptide fragment (A) (25–35) into n. basalis magnocellularis. IHH was simulated at a 4,000 m altitude, for 4 hours a day, for 14 days. Brain blood vessels were stained by transcardiac infusion of Indian ink; brain sections were stained with 0.3 % cresyl violet by Nissle method. Vascular density was assessed in the cortex and hippocampus using the Infinity Analysis Software. Results. In the EAD rats, VD was significantly decreased in the hippocampus (13.3±0.9 vs 17.8±1.0 in field of view, FOV, p&lt;0.03) and in the cortex (17.3±1.5 vs 22.3±1.3 in FOV, p&lt;0.03). AIH increased VD in the hippocampus to 27.0±3.5 in FOV (p=0.01) and in cortex to 26.0±1.1 in FOV (p&lt;0.03). In EAD+AIH rats, VD did not differ significantly from the control rats neither in the hippocampus, nor in the cortex. AIH may stimulate angiogenesis through hypoxia inducible factor-1α-mediated expression of vascular endothelial growth factor and/or by increasing expression and activity of antioxidant enzymes. Conclusion. One of the mechanisms of AIH beneficial effect in AD-related neurodegeneration is preserving the capability for compensatory angiogenesis in brain.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>болезнь Альцгеймера</kwd><kwd>периодическая гипоксия</kwd><kwd>адаптация</kwd><kwd>церебральные сосуды</kwd><kwd>плотность сосудистой сети</kwd><kwd>кора мозга</kwd><kwd>гиппокамп</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Alzheimer’s disease</kwd><kwd>intermittent hypoxia</kwd><kwd>adaptation</kwd><kwd>cerebral blood vessels</kwd><kwd>vascular density</kwd><kwd>cortex</kwd><kwd>hippocampus</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">Solis E, Hascup KN, Hascup ER. Alzheimer’s Disease: The link between amyloid-β and neurovascular dysfunction. J Alzheimers Dis. 2020;76(4):1179–1198. 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