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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2226-5988</journal-id>
      <journal-id journal-id-type="eissn">2686-6749</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Клиническая и экспериментальная морфология</journal-title>
        <journal-title xml:lang="en">Clinical and Experimental Morphology</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name>ООО "Группа МДВ"</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.31088/CEM2024.13.3.34-41</article-id>
      <title-group>
        <article-title xml:lang="ru">Формирование транзиторных зон в дорсомедиальной и дорсолатеральной неокортикальных областях в раннем развитии человека</article-title>
        <trans-title-group xml:lang="en">
          <trans-title>Delineation of transient zones in dorsolateral and dorsomedial neocortical areas in early human development</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Прощина</surname>
            <given-names>Александра Евгеньевна</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Прощина</surname>
              <given-names>Александра Евгеньевна</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Proshchina</surname>
              <given-names>Alexandra E.</given-names>
            </name>
          </name-alternatives>
          <email>proshchina@yandex.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0002-0515-8275</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Харламова</surname>
            <given-names>Анастасия Сергеевна</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Харламова</surname>
              <given-names>Анастасия Сергеевна</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Kharlamova</surname>
              <given-names>Anastasia S.</given-names>
            </name>
          </name-alternatives>
          <email>cem.journal@mail.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0003-1163-4132</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Кривова</surname>
            <given-names>Юлия Сергеевна</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Кривова</surname>
              <given-names>Юлия Сергеевна</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Krivova</surname>
              <given-names>Yuliya S.</given-names>
            </name>
          </name-alternatives>
          <email>cem.journal@mail.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0001-9692-3616</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Годовалова</surname>
            <given-names>Ольга Сергеевна</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Годовалова</surname>
              <given-names>Ольга Сергеевна</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Godovalova</surname>
              <given-names>Olga S.</given-names>
            </name>
          </name-alternatives>
          <email>cem.journal@mail.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0002-9285-7241</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Савельев</surname>
            <given-names>Сергей Вячеславович</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Савельев</surname>
              <given-names>Сергей Вячеславович</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Saveliev</surname>
              <given-names>Sergey V.</given-names>
            </name>
          </name-alternatives>
          <email>cem.journal@mail.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0002-1447-7198</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Научно-исследовательский институт морфологии человека имени академика А.П. Авцына ФГБНУ «Российский научный центр хирургии имени академика Б.В. Петровского», Москва, Россия</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Avtsyn Research Institute of Human Morphology of FSBSI “Petrovsky National Research Center of Surgery”, Moscow, Russia</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2024-09-01">
        <day>01</day>
        <month>09</month>
        <year>2024</year>
      </pub-date>
      <volume>13</volume>
      <issue>3</issue>
      <fpage>34</fpage>
      <lpage>41</lpage>
      <history>
        <date date-type="received" iso-8601-date="2023-11-29">
          <day>29</day>
          <month>11</month>
          <year>2023</year>
        </date>
        <date date-type="accepted" iso-8601-date="2024-04-01">
          <day>01</day>
          <month>04</month>
          <year>2024</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2024-01-09">
          <day>09</day>
          <month>01</month>
          <year>2024</year>
        </date>
      </history>
      <abstract xml:lang="ru">
        <p>Введение. В ходе гистогенеза коры головного мозга в стенке полушарий возникают транзиторные зоны, которые исчезают в процессе развития, замещаясь зрелым серым и белым веществом. Работы по изучению раннего кортикогенеза человека фрагментарны, что приводит к различиям в определении сроков формирования этих зон. Целью исследования было охарактеризовать раннюю стратификацию транзиторных зон и уточнить сроки их формирования в дорсолатеральной и дорсомедиальной частях неокортекса на 3–4-м месяце внутриутробного развития человека. Материалы и методы. Исследование выполнено на аутопсийном материале головного мозга 12 эмбрионов и плодов человека на 8–15-й неделях после оплодотворения с помощью гистологического окрашивания серийных срезов по Нисслю, Маллори и гематоксилином и эозином с последующим морфометрическим и статистическим анализом. Результаты. При формировании стенки полушарий и неокортикальной закладки плодов происходит последовательное увеличение числа транзиторных зон. Формирование зон медиальной стенки полушария запаздывает по сравнению с формированием латеральной. Заключение. При формировании транзиторных зон в дорсомедиальной и дорсолатеральной неокортикальных областях существуют региональные гетерохронии, что является одной из возможных причин дифференцировки полей неокортекса и требует отдельного углубленного изучения.</p>
      </abstract>
      <trans-abstract xml:lang="en">
        <p>Introduction. Transient zones form during prenatal corticogenesis and disappear and are replaced by mature white and gray matter in postnatal ontogenesis. The growth trajectories of transient zones have not been completely characterized, and quantitative data describing these processes are still scarce. We aimed to describe the hemispheric wall stratification during 3–4 months of intrauterine development and clarify timing of major transient zone formation in dorsolateral and dorsomedial neocortical areas. Materials and methods. We examined 12 autopsy brain samples of human fetuses at postcoital weeks 8–15. Nissl, Mallory trichrome, and haematoxylin and eosin histological preparations were analyzed. Then we performed morphometric and statistical analyses. Results. Consecutive formation and growth of transient zones in hemispheric walls occur during early prenatal development at postcoital weeks 8–15. In the dorsomedial hemispheric wall, the development of transient zones is delayed compared to that in the dorsolateral one. Conclusion. The formation of transient zones in dorsomedial and dorsolateral hemispheric walls is characterized by regional heterochrony, which could account for neocortical area differentiation and needs further research.</p>
      </trans-abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>транзиторные зоны</kwd>
        <kwd>неокортекс</kwd>
        <kwd>нейрогенез</kwd>
        <kwd>кортикогенез</kwd>
        <kwd>пренатальное развитие человека</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>transient zones</kwd>
        <kwd>neocortex</kwd>
        <kwd>neurogenesis</kwd>
        <kwd>corticogenesis</kwd>
        <kwd>human prenatal development</kwd>
      </kwd-group>
      <funding-group>
        <funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке гранта РНФ № 22-15-00172.</funding-statement>
        <funding-statement xml:lang="en">The study was supported by the Russian Science Foundation, grant No. 22-15-00172.</funding-statement>
      </funding-group>
    </article-meta>
  </front>
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