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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Morphology</journal-id><journal-title-group><journal-title xml:lang="en">Morphology</journal-title><trans-title-group xml:lang="ru"><trans-title>Морфология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1026-3543</issn><issn publication-format="electronic">2949-2556</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">398612</article-id><article-id pub-id-type="doi">10.17816/morph.398612</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">INTERDEPENDENT CHANGES OF THE AXON AND SCHWANN CELL IN THE PROCESS OF REACTIVE REMODELING OF A MYELINATED NERVE FIBER</article-title><trans-title-group xml:lang="ru"><trans-title>ВЗАИМОЗАВИСИМЫЕ ИЗМЕНЕНИЯ АКСОНА И ШВАННОВСКОЙ КЛЕТКИ В ПРОЦЕССЕ РЕАКТИВНОЙ ПЕРЕСТРОЙКИ МИЕЛИНОВОГО ВОЛОКНА</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kokurina</surname><given-names>T. N.</given-names></name><name xml:lang="ru"><surname>Кокурина</surname><given-names>Татьяна Николаевна</given-names></name></name-alternatives><bio xml:lang="ru"><p>лаборатория функциональной морфологии и физиологии нейрона</p></bio><email>kokurina.tatyana@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sotnikov</surname><given-names>O. S.</given-names></name><name xml:lang="ru"><surname>Сотников</surname><given-names>Олег Семенович</given-names></name></name-alternatives><bio xml:lang="ru"><p>лаборатория функциональной морфологии и физиологии нейрона</p></bio><email>sotnikov@kolt.infran.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Novakovskaya</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Новаковская</surname><given-names>Светлана Алексеевна</given-names></name></name-alternatives><email>novakovskaya@tut.by</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yegorov</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Егоров</surname><given-names>Александр Сергеевич</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kozhevetz</surname><given-names>R. V.</given-names></name><name xml:lang="ru"><surname>Кожевец</surname><given-names>Рита Викторовна</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Solnuschkin</surname><given-names>S. D.</given-names></name><name xml:lang="ru"><surname>Солнушкин</surname><given-names>Дмитрий Сергеевич</given-names></name></name-alternatives><bio xml:lang="ru"><p>лаборатория функциональной морфологии и физиологии нейрона</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chikhman</surname><given-names>V. N.</given-names></name><name xml:lang="ru"><surname>Чихман</surname><given-names>Валерий Николаевич</given-names></name></name-alternatives><bio xml:lang="ru"><p>лаборатория функциональной морфологии и физиологии нейрона</p></bio><email>chi@physiology.spb.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">RAS I. P. Pavlov Institute of Physiology</institution></aff><aff><institution xml:lang="ru">Институт физиологии им. И. П. Павлова РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Physiology</institution></aff><aff><institution xml:lang="ru">Институт физиологии НАН Беларуси</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2013</year></pub-date><volume>143</volume><issue>2</issue><issue-title xml:lang="en">VOL 143, NO2 (2013)</issue-title><issue-title xml:lang="ru">ТОМ 143, №2 (2013)</issue-title><fpage>035</fpage><lpage>042</lpage><history><date date-type="received" iso-8601-date="2023-05-09"><day>09</day><month>05</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, Эко-Вектор</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://j-morphology.com/1026-3543/article/view/398612">https://j-morphology.com/1026-3543/article/view/398612</self-uri><abstract xml:lang="en"><p>Using the inverted phase-contrast microscope, the living undamaged frog sciatic nerve fibers and the fibers mechanically injured to varying degrees, were studied. It was found that the swelling of myelin incisures (MI) (of Schmidt–Lanterman) occured according to the principles similar to those controlling the changes of the myelin gap (node of Ranvier) and depended on the swelling of a Schwann cell (SC) perikaryon. It was detected that this was a single process, which which could be united in a complex of nonspecific changes of a myelinated nerve fiber. It was also demonstrated that under the action of mechanical injury and hypotonic solution, swelling of MI, nodes of Ranvier and SC perikaryon occurred without modifications of outer fiber diameter, due to the pronounced local axon thinning. Electron microscopic study of the cytoskeletal axonal structures showed that there was not a simple local contraction of an axon, but a significant local increase in the density of cytoskeletal components of the axoplasm (by 200–275%). Reactive reversible remodeling of a myelinated fiber suggests a new type of interaction between the axon and SC, the mechanism of reversible translocation of liquid axoplasmic fraction to the glial cell cytoplasm.</p></abstract><trans-abstract xml:lang="ru"><p>С помощью инвертированного фазово-контрастного микроскопа были изучены живые неповрежденные и в разной степени механически травмированные волокна седалищного нерва лягушки. Обнаружено, что набухание насечек миелина (НМ) (Шмидта—Лантермана) происходит по принципам, сходным с изменениями, происходящими в области узлового перехвата, и зависит от набухания перикариона шванновской клетки (ШК). Было выявлено, что это — единый процесс, который может быть объединён в комплекс неспецифических изменений миелинового нервного волокна. Также показано, что при действии механической травмы и гипотонического раствора набухание НМ, узловых перехватов и перикариона ШК происходит при неизменённом наружном диаметре волокна, за счёт резкого локального истончения аксона. Электронно-микроскопическое изучение цитоскелетных структур аксона показало, что происходит не просто его локальное сужение, а существенное местное увеличение плотности расположения цитоскелетных компонентов аксоплазмы (на 200–275%). Реактивная обратимая перестройка миелинового волокна предполагает новый тип взаимодействия аксона и ШК, механизм обратимой транслокации жидкой фракции аксоплазмы в цитоплазму глиоцита.</p></trans-abstract><kwd-group xml:lang="en"><kwd>myelinated fiber</kwd><kwd>myelin (Schmidt-Lanterman) incisures</kwd><kwd>node of Ranvier</kwd><kwd>Schwann cell perikaryon</kwd><kwd>water exchange in the fiber</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>миелиновое волокно</kwd><kwd>насечки миелина (Шмидта—Лантермана)</kwd><kwd>узловой перехват (Ранвье)</kwd><kwd>перикарион шванновской клетки</kwd><kwd>водообмен внутри нервного волокна</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Быков В. Н. Морфофункциональная характеристика седалищного нерва в норме и при недостаточности функций печени: Автореф. дис. … канд. мед. наук. СПб., 2003.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Жихорев В. И. 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