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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Annals of Clinical and Experimental Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Annals of Clinical and Experimental Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Анналы клинической и экспериментальной неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-5473</issn><issn publication-format="electronic">2409-2533</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">497</article-id><article-id pub-id-type="doi">10.17816/ACEN.2017.4.3</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Influence of the blood gas transport system on brain millivolt scale direct current potentials in patients with vascular encephalopathy</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние газотранспортной системы мозгового кровотока на медленную электрическую активность головного мозга у пациентов с дисциркуляторной энцефалопатией</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fokin</surname><given-names>Vitaliy F.</given-names></name><name xml:lang="ru"><surname>Фокин</surname><given-names>Виталий Федорович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>fvf@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ponomareva</surname><given-names>Natalia V.</given-names></name><name xml:lang="ru"><surname>Пономарева</surname><given-names>Наталия Васильевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>fvf@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Medvedev</surname><given-names>Roman B.</given-names></name><name xml:lang="ru"><surname>Медведев</surname><given-names>Роман Борисович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>fvf@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5883-8119</contrib-id><name-alternatives><name xml:lang="en"><surname>Tanashyan</surname><given-names>Мarine М.</given-names></name><name xml:lang="ru"><surname>Танашян</surname><given-names>Маринэ Мовсесовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.), Prof., Corresponding member of RAS, Deputy Director for science, Head, 1st Neurological department</p></bio><bio xml:lang="ru"><p>д.м.н., профессор, член-корреспондент РАН, зам. директора по научной работе, руководитель 1-го неврологического отделения</p></bio><email>fvf@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9604-7775</contrib-id><name-alternatives><name xml:lang="en"><surname>Shabalina</surname><given-names>Аlla А.</given-names></name><name xml:lang="ru"><surname>Шабалина</surname><given-names>Алла Анатольевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), leading researcher, Head, Laboratory of hemorheology, hemostasis and pharmacokinetics (with clinical laboratory diagnostics)</p></bio><bio xml:lang="ru"><p>к.м.н., в.н.с., рук. лаб. гемореологии, гемостаза и фармакокинетики с клинической лабораторной диагностикой </p></bio><email>fvf@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Research Center of Neurology</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Научный центр неврологии»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-12-27" publication-format="electronic"><day>27</day><month>12</month><year>2017</year></pub-date><volume>11</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>29</fpage><lpage>35</lpage><history><date date-type="received" iso-8601-date="2017-12-24"><day>24</day><month>12</month><year>2017</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2017, Fokin V.F., Ponomareva N.V., Medvedev R.B., Tanashyan М.М., Shabalina А.А.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2017, Fokin V.F., Ponomareva N.V., Medvedev R.B., Tanashyan М.М., Shabalina А.А.</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="en">Fokin V.F., Ponomareva N.V., Medvedev R.B., Tanashyan М.М., Shabalina А.А.</copyright-holder><copyright-holder xml:lang="ru">Fokin V.F., Ponomareva N.V., Medvedev R.B., Tanashyan М.М., Shabalina А.А.</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://annaly-nevrologii.com/pathID/article/view/497">https://annaly-nevrologii.com/pathID/article/view/497</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> Millivolt Scale direct current potentials (DCP) registered from human scalp differ from other types of estimated electrical activity by closer association with cerebral energetic processes. Intense energy metabolism in the brain increases the difference between acidic products concentrations on both sides of the blood brain barrier which is reflected by higher DCP. Oxygen consumption of is one of the most important components of cerebral energy metabolism. Delivery of oxygen to neuron depends on the characteristics of blood oxygen transport system and cerebral blood flow.</p> <p><bold>Objective.</bold> To test the hypothesis that brain DCP depends of the blood oxygen transport system characteristics and cerebral blood flow.</p> <p><bold>Materials and methods.</bold> Erythrocytes number, erythrocyte sedimentation rate, hemoglobin and fibrinogen levels in blood were examined in135 patients with vascular encephalopathy (VE) Blood flow velocity in major head arteries was estimated using Doppler ultrasound. Associations between blood characteristics and blood flow velocity and the brain DCP, recorded in frontal, central, occipital areas along the midline and in both temporal areas, were determined.</p> <p><bold>Results.</bold> Associations between brain DCP and the blood oxygen transport system characteristics as well as the cerebral blood flow velocity were discovered in patients with VE. Averaged values of DCP in all examined areas were significantly different in groups with high and low hemoglobin levels (Fisher coefficient (F) = 5.5; p = 0.02) and corpuscular hemoglobin levels (F = 7.0; p &lt;0.01). The blood flow velocity in the internal carotid artery correlated with DCP in central areas of the head (r = 0.37; p = 0.003). The values of averaged DCP (over all areas) negatively correlated with blood sedimentation rate (r = -0.31; p= 0.002) and fibrinogen levels (r = -0.37; p &lt;0.001).</p> <p><bold>Conclusions.</bold> Evidences of the association between DCP and the brain oxygen transport system were obtained. Higher level of hemoglobin and a higher rate of cerebral blood flow promote more intensive rates of brain oxygen consumption. Discovered correlations between the blood oxygen transport system characteristics, cerebral blood flow and brain DCP confirm the potential benefit of using the millivolt range slow brain electrical activity measurement to characterize cerebral energy metabolism in clinical and experimental setting.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Медленная электрическая активность милливольтного диапазона, или уровень постоянного потенциала (УПП) головного мозга, отличается от других видов электрической активности более тесной связью с церебральными энергетическими процессами. Интенсивный энергетический обмен в мозге увеличивает разность концентраций кислых продуктов по обе стороны гематоэнцефалического барьера, что отражается в более высоком УПП. Доставка кислорода к нейронам зависит от характеристик газотранспортной системы крови и скорости мозгового кровотока.</p> <p><bold>Цель.</bold> Проверка гипотезы о наличии зависимости УПП головного мозга от характеристик системы транспорта кислорода крови и мозгового кровотока.</p> <p><bold>Материалы и методы.</bold> У 135 больных дисциркуляторной энцефалопатией (ДЭ) определяли количество эритроцитов, содержание гемоглобина, фибриногена и СОЭ в крови. С помощью ультразвуковой допплерографии оценивали линейную скорость кровотока по магистральным артериям головы. Анализировали взаимосвязь показателей крови и скорости кровотока с параметрами УПП, зарегистрированными в лобном, центральном, затылочном по сагиттальной линии и обоих височных отведениях.</p> <p><bold>Результаты.</bold> У пациентов с ДЭ обнаружена статистически значимая сопряженность УПП с составляющими газотранспортной системы крови и скоростью мозгового кровотока. Усредненные по всем отведениям значения УПП достоверно различались в группах с высоким и низким уровнем гемоглобина (коэффициент Фишера (F)=5,5; p=0,02), а также корпускулярного гемоглобина (F=7,0; p&lt;0,01). С УПП коррелировала скорость движения крови по внутренней сонной артерии (r=0,37; p=0,003, для УПП в центральном отведении). Значения усредненного по всем отведениям УПП отрицательно коррелировали с СОЭ (r=-0,31; p=0,002) и уровнем фибриногена (r=-0,37; p&lt;0,001).</p> <p><bold>Заключение.</bold> Получены доказательства связи УПП с системой транспорта кислорода в мозг. Повышенный уровень гемоглобина и более высокая скорость мозгового кровотока создают условия для более интенсивного потребления кислорода мозгом. Корреляционная связь между характеристиками газотранспортной системы крови, мозговым кровотоком и УПП подтверждает возможность использования медленной электрической активности милливольтного диапазона в клинической и экспериментальной практике как показателя церебрального энергетического обмена.</p></trans-abstract><kwd-group xml:lang="en"><kwd>blood gas transport system</kwd><kwd>cerebral blood flow</kwd><kwd>Millivolt Scale of brain direct potentials</kwd><kwd>vascular encephalopathy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>газотранспортная система крови</kwd><kwd>мозговой кровоток</kwd><kwd>уровень постоянного потенциала головного мозга</kwd><kwd>дисциркуляторная энцефалопатия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Fokin V. F., Ponomareva N.V. Energeticheskaya fiziologiya mozga. [Energy physiology of the brain]. Moscow: "Antidoron". 2003; 268 p. 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