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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">anatomy</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал анатомии и гистопатологии</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Anatomy and Histopathology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2225-7357</issn><publisher><publisher-name>N.N. Burdenko Voronezh State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18499/2225-7357-2020-9-1-16-23</article-id><article-id custom-type="elpub" pub-id-type="custom">anatomy-1063</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Морфологические изменения тимуса белых крыс ювенильного возраста, подвергавшихся ингаляционному воздействию формальдегида</article-title><trans-title-group xml:lang="en"><trans-title>Morphological Changes of the Thymus of the Juvenile White Rats Exposed to the Inhalation of Formaldehyde</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>Ваш</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Vash</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ваш Ирина Юрьевна.</p><p>квартал 50 лет Обороны Луганска, 1г, г. Луганск, 91045, Луганская Народная Республика.</p></bio><bio xml:lang="en"><p>Irina Vash.</p><p>kvartal 50 let Oborony Luganska, 1g, Lugansk, 91045, Lugansk People's Republic.</p></bio><email xlink:type="simple">Irinavash1988@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГУ ЛНР «Луганский государственный медицинский университет имени Святителя Луки»</institution></aff><aff xml:lang="en"><institution>St. Luke Lugansk State Medical University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>31</day><month>03</month><year>2020</year></pub-date><volume>9</volume><issue>1</issue><fpage>16</fpage><lpage>23</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ваш И.Ю., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Ваш И.Ю.</copyright-holder><copyright-holder xml:lang="en">Vash I.Y.</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://anatomy.elpub.ru/jour/article/view/1063">https://anatomy.elpub.ru/jour/article/view/1063</self-uri><abstract><p>Цель работы – исследование морфологических особенностей тимуса белых крыс, которые испытывали ингаляционное воздействие формальдегида.</p><sec><title>Материал и методы</title><p>Материал и методы. Работа выполнена на 72 белых крысах-самцах с начальной массой тела 130–150 г. Животные подвергались влиянию формальдегида в концентрации 2.766 мг/м3. Экспозиции осуществлялись 1 раз в сут в течение 60 мин ежедневно. Продолжительность экспозиций составляла 10, 20, 30, 60 и 90 сут. Отдельно изучали тимус крыс, которые после 60-дневного воздействия формальдегида на протяжении 30 сут находились в стандартных условиях вивария (группа реадаптации). Строения тимуса изучали на светооптическом уровне.</p></sec><sec><title>Результаты</title><p>Результаты. Количество клеток на площади 2500 мкм2 субкапсулярной части коркового вещества у животных, подвергавшихся влиянию формальдегида в течение 10, 20 и 30 сут составило 131.19±4.20, 135.65±7.74 и 135.35±10.83, что меньше значений соответствующих групп крыс контрольной серии на 4.35%, 4.68% и 3.72% соответственно. Через 60 и 90 сут этот показатель был ниже контроля на 8.90% и 9.63% соответственно.</p></sec><sec><title>Заключение</title><p>Заключение. Под действием формальдегида наблюдается уменьшение площади коркового вещества тимуса. При этом наблюдаются явления инверсии коркового и мозгового вещества. Под действием формальдегида в корковом веществе тимуса наблюдается картина «звездного неба». Уменьшение выраженности изменений в тимусе крыс, входивших в группу реадаптации, в сравнении с животными, получившими 90 экспозиций, свидетельствует об обратимости изменений.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the article is to study the morphological features of the thymus of the white rats exposed to the inhalation of formaldehyde.</p><sec><title>Material and methods</title><p>Material and methods. 72 white male rats with an initial body weight of 130–150 g were were exposed to formaldehyde at a concentration of 2.766 mg/m3. Exposures were carried out once a day during 60 minutes. Exposure durations were 10, 20, 30, 60 and 90 days. We separately studied the thymus of rats, which, after 60 days of exposure to formaldehyde, were kept for 30 days in standard vivarium conditions (rehabilitation group). The structure of the thymus was studied by light microscopy.</p></sec><sec><title>Results</title><p>Results. The number of cells in an area of 2500 μm2 of the subcapsular zone in animals exposed to formaldehyde for 10, 20, and 30 days was 131.19±4.20, 135.65±7.74, and 135.35±10.83, respectively, which was less than the control set by 4.35%, 4.68% and 3.72%, respectively. After 40 and 60 days, this indicator was below the control by 8.90% and 9.63%.</p></sec><sec><title>Conclusion</title><p>Conclusion. Inhalation of formaldehyde reduces the area of the thymus cortex. Phenomena of inversion of the cortex and the medulla are observed. Under the influence of formaldehyde, a picture of so called «starry sky» is observed in the cortical substance of the thymus. A decrease in the severity of changes in the thymus of rats belonging to the rehabilitation group, in comparison with animals that received 90 exposures, indicates that the changes are reversible.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>крыса</kwd><kwd>тимус</kwd><kwd>формальдегид</kwd><kwd>гистология</kwd><kwd>инверсия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rat</kwd><kwd>thymus</kwd><kwd>formaldehyde</kwd><kwd>histology</kwd><kwd>inversion</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">Бобрышева И.В. Иммуномодулятор «Имунофан» влияет на клеточный состав морфофункциональных зон тимуса крыс и замедляет его возрастную инволюцию. Вестник Российского государственного медицинского университета. 2016; 3:38–42 [Bobrysheva IV. 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