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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">477</article-id><article-id pub-id-type="doi">10.17816/ACEN.2017.2.8</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Technologies</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Технологии</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Electrophysiological methods for estimation of the number of motor units</article-title><trans-title-group xml:lang="ru"><trans-title>Электрофизиологические методы оценки количества двигательных единиц</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Murtazina</surname><given-names>Aysylu F.</given-names></name><name xml:lang="ru"><surname>Муртазина</surname><given-names>Айсылу Фанзировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>aysylumurtazina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Belyakova-Bodina</surname><given-names>Aleksandra I.</given-names></name><name xml:lang="ru"><surname>Белякова-Бодина</surname><given-names>Александра И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>aysylumurtazina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Brutyan</surname><given-names>Amayak G.</given-names></name><name xml:lang="ru"><surname>Брутян</surname><given-names>Амаяк Грачевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>aysylumurtazina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal Medical and Biophysical Center n.a. A.I. Burnazyan of the Federal Medical and Biological Agency of the Russian Federation</institution></aff><aff><institution xml:lang="ru">ФГБУ Государственный Научный Центр Российской Федерации Федерального Медицинского Биофизического Центра ИМ.А.И. Бурназяна ФМБА России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-08-06" publication-format="electronic"><day>06</day><month>08</month><year>2017</year></pub-date><volume>11</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>55</fpage><lpage>65</lpage><history><date date-type="received" iso-8601-date="2017-08-06"><day>06</day><month>08</month><year>2017</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2017, Murtazina A.F., Belyakova-Bodina A.I., Brutyan A.G.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2017, Murtazina A.F., Belyakova-Bodina A.I., Brutyan A.G.</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="en">Murtazina A.F., Belyakova-Bodina A.I., Brutyan A.G.</copyright-holder><copyright-holder xml:lang="ru">Murtazina A.F., Belyakova-Bodina A.I., Brutyan A.G.</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/477">https://annaly-nevrologii.com/pathID/article/view/477</self-uri><abstract xml:lang="en"><p>Various neurological diseases involving motor neurons or their axons lead to decrease in the number of functioning motor units (MU). Counting the number of intact MUs plays significant role in assessing the progression of the pathological process associated with motor neuron death. Quantitative estimation of MUs using routine electromyography methods is usually impossible. Therefore, electrophysiological methods for estimation of the number of MUs, currently known under the common name MUNE (motor unit number estimation), are being discovered over the past decades. The first publication on MUNE was issued in 1971. Since that time, promising, more accurate, and less time-consuming modifications have been developed, and new MU counting methods have been proposed. In recent years, we can see increasing interest in MUNE in connection with the search for new treatments for motor neuron disease, assessment of their effectiveness, and dynamic control of the disease. Today, MUNE is considered as a potential biomarker in clinical trials of new treatments for motor neuron disease. This review presents the available MUNE techniques, describes their comparative characteristics, advantages and disadvantages of each method, and discusses the experience and prospects of their application.</p></abstract><trans-abstract xml:lang="ru"><p>Различные неврологические заболевания, при которых страдают мотонейроны или их аксоны, приводят к снижению количества функционирующих двигательных единиц (ДЕ). Подсчет количества сохранных ДЕ имеет значение в оценке прогрессирования патологического процесса, связанного с гибелью мотонейронов. Количественная оценка ДЕ, как правило, невозможна методами рутинной электромиографии. Поэтому на протяжении последних десятилетий ведется поиск электрофизиологических методов оценки количества ДЕ, которые на сегодняшний день объединяются под общим названием MUNE (motor unit number estimation). Первая публикация MUNE датируется 1971 годом. С тех пор появились многообещающие, более точные и менее трудоемкие модификации, предложены новые способы подсчета ДЕ. В последние годы мы наблюдаем возрастающий интерес к MUNE в связи с поиском новых методов лечения болезни двигательного нейрона, определения их эффективности и динамического контроля течения заболевания. Сегодня MUNE рассматривается как потенциальный биомаркер при проведении клинических испытаний новых способов лечения болезни двигательного нейрона. В обзоре изложены доступные методики MUNE, приведены их сравнительные характеристики, преимущества и недостатки каждого из них, обсуждается опыт и перспективы их применения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>motor units</kwd><kwd>electromyography</kwd><kwd>MUNE</kwd><kwd>motor neuron disease</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>двигательные единицы</kwd><kwd>электромиография</kwd><kwd>MUNE</kwd><kwd>болезнь двигательного нейрона</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Gooch C.L., Doherty T.J., Chan K.M. et. al. Motor unit number estimation: a technology and literature review. Muscle &amp; Nerve. 2014; 50(6): 884-93. PMID: 25186553 DOI: 10.1002/mus.24442.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>McComas A.J. Motor unit estimation: anxieties and achievements. Muscle &amp; Nerve. 1995; 18(4):369-79. DOI:10.1002/mus.880180402. 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