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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">10.18499/2225-7357-2026-15-1-105-111</article-id><article-id custom-type="elpub" pub-id-type="custom">anatomy-2225</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>КРАТКОЕ СООБЩЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF ARTICLE</subject></subj-group></article-categories><title-group><article-title>Сравнительное электронно-микроскопическое и микроскопическое исследование сперматид на поздних этапах спремиогенеза у млекопитающих</article-title><trans-title-group xml:lang="en"><trans-title>Comparative Electron and Light Microscopy of Early Spermatids during Mammalian Spermiogenesis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1414-5406</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ульянов</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ul'yanov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ульянов Игнатий Андреевич – аспирант</p><p>Воронеж</p></bio><bio xml:lang="en"><p>Inatii A. Ul'yanov – postgraduate</p><p>Voronezh</p></bio><email xlink:type="simple">germanort@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ульянов</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Ul'yanov</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ульянов Андрей Григорьевич – канд. с.-х. наук, доцент кафедры частной зоотехнии</p><p>Воронеж</p></bio><bio xml:lang="en"><p>Andrei G. Ul'yanov – Cand. Sci. (Agricult.), Associate Professor at the Department of Private Animal Science</p><p>Voronezh</p></bio><email xlink:type="simple">agu16@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Котарев</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotarev</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Котарев Вячеслав Иванович – д-р. с.-х. наук, главный научный сотрудник лаборатории гематологии и биохимии отдела клинико-лабораторных исследований</p><p>Воронеж</p></bio><bio xml:lang="en"><p>Vyacheslav I. Kotarev – Doct. Sci. (Agricult.), Chief Researcher of the Laboratory of Hematology and Biochemistry of the Department of Clinical Laboratory Research</p><p>Voronezh</p></bio><email xlink:type="simple">kotarev60@ya.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1510-8543</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеева</surname><given-names>Н. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Alexeeva</surname><given-names>N. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексеева Наталия Тимофеевна – д-р мед. наук, профессор, зав. кафедрой нормальной анатомии человека </p><p>Воронеж</p></bio><bio xml:lang="en"><p>Nataliya T. Alexeeva – Doct. Sci. (Med.), Professor, Head of Human Anatomy Department </p><p>Voronezh</p></bio><email xlink:type="simple">alexeevant@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8232-4858</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Торгун</surname><given-names>П. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Torgun</surname><given-names>P. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Торгун Петр Макарович – д-р. ветеринар. наук, профессор кафедры акушерства, анатомии и хирургии</p><p>ул. Мичурина, 1, Воронеж, 394087</p></bio><bio xml:lang="en"><p>Petr M. Torgun – Doct. Sci. (Veterinary), Professor at the Department of Obstetrics, Anatomy and Surgery</p><p>ul. Michurina, 1, Voronezh, 394087</p></bio><email xlink:type="simple">pet.torgun@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2041-7607</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клочкова</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Klochkova</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Клочкова Светлана Валерьевна – д-р мед. наук, профессор кафедры анатомии человека </p><p>Москва</p></bio><bio xml:lang="en"><p>Svetlana V. Klochkova – Doct. Sci. (Med.), Professor of Human Anatomy Department </p><p>Moscow</p></bio><email xlink:type="simple">swetlana.chava@yandex.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2259-1222</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитюк</surname><given-names>Д. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikityuk</surname><given-names>D. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никитюк Дмитрий Борисович – д-р мед. наук, профессор, акад. РАН, директор ФИЦ питания, биотехнологии и безопасности пищи</p><p>Москва</p></bio><bio xml:lang="en"><p>Dmitrii B. Nikityuk – Doct. Sci. (Med.), Professor, Acad. of RAS, head of Federal Research Center for Nutrition, Biotechnology and Food Safety</p><p>Moscow</p></bio><email xlink:type="simple">dimitrynik@mail.ru</email><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лободин</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lobodin</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лободин Константин Алексеевич – д-р. ветеринар. наук, зав. кафедрой акушерства, анатомии и хирургии</p><p>Воронеж</p></bio><bio xml:lang="en"><p>Konstantin A. Lobodin – Doct. Sci. (Veterinary), Head of the Department of Obstetrics, Anatomy and Surgery</p><p>Voronezh</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-0029-0143</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лозовой</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Lozovoi</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лозовой Никита Михайлович – аспирант кафедры акушерства, анатомии и хирургии</p><p>Воронеж</p></bio><bio xml:lang="en"><p>Nikita M. Lozovoi – postgraduate of the Department of Obstetrics, Anatomy and Surgery</p><p>Voronezh</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-5001-4963</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лозовая</surname><given-names>Е. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Lozovaya</surname><given-names>E. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лозовая Елена Геннадиевна – доцент кафедры акушерства, анатомии и хирургии</p><p>Воронеж</p></bio><bio xml:lang="en"><p>Elena G. Lozovaya – Associate Professor of the Department of Obstetrics, Anatomy and Surgery</p><p>Voronezh</p></bio><email xlink:type="simple">llozovaja@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-4543-0135</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мозговая</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Mozgovaya</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мозговая Елена Ивановна – старший преподаватель кафедры акушерства, анатомии и хирургии</p><p>Воронеж</p></bio><bio xml:lang="en"><p>Elena I. Mozgovaya – senior lecturer of the Department of Obstetrics, Anatomy and Surgery</p><p>Voronezh</p></bio><email xlink:type="simple">mosgovaja59@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Воронежский государственный медицинский университет им. Н.Н. Бурденко<country>Россия</country></aff><aff xml:lang="en">N.N. Burdenko Voronezh State Medical University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Воронежский государственный аграрный университет им. императора Петра I<country>Россия</country></aff><aff xml:lang="en">Emperor Peter the Great Voronezh State Agrarian University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Всероссийский научно-исследовательский ветеринарный институт патологии, фармакологии и терапии<country>Россия</country></aff><aff xml:lang="en">All-Russian Veterinary Research Institute of Pathology, Pharmacology, and Therapy<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Российский университет дружбы народов им. Патриса Лумумбы<country>Россия</country></aff><aff xml:lang="en">Patrice Lumumba Peoples’ Friendship University of Russia<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru">Федеральный исследовательский центр питания, биотехнологии и безопасности пищи;&#13;
Первый Московский государственный медицинский университет им. И.М. Сеченова (Сеченовский Университет)<country>Россия</country></aff><aff xml:lang="en">The Federal Research Centre of Biotechnology and Food Safety;&#13;
I.M. Sechenov First Moscow State Medical University (Sechenov University)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>07</day><month>04</month><year>2026</year></pub-date><volume>15</volume><issue>1</issue><fpage>105</fpage><lpage>111</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ульянов И.А., Ульянов А.Г., Котарев В.И., Алексеева Н.Т., Торгун П.М., Клочкова С.В., Никитюк Д.Б., Лободин К.А., Лозовой Н.М., Лозовая Е.Г., Мозговая Е.И., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Ульянов И.А., Ульянов А.Г., Котарев В.И., Алексеева Н.Т., Торгун П.М., Клочкова С.В., Никитюк Д.Б., Лободин К.А., Лозовой Н.М., Лозовая Е.Г., Мозговая Е.И.</copyright-holder><copyright-holder xml:lang="en">Ul'yanov I.A., Ul'yanov A.G., Kotarev V.I., Alexeeva N.T., Torgun P.M., Klochkova S.V., Nikityuk D.B., Lobodin K.A., Lozovoi N.M., Lozovaya E.G., Mozgovaya E.I.</copyright-holder><license 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/2225">https://anatomy.elpub.ru/jour/article/view/2225</self-uri><abstract><p>Цель исследования – изучить электронно-микроскопические и микроскопические особеннности сперматид на поздних этапах спермиогенеза (фаза акросомы и фаза созревания) у млекопитающих.</p><sec><title>Материал и методы</title><p>Материал и методы. Использован материал от 7 видов млекопитающих (бык домашний, баран, северный морской котик, калан, речной бобр, норка, черно-бурая лисица). Для электронной микроскопии образцы яичек фиксировали в 2,5% глютаровом альдегиде и в 1% осмиевом фиксаторе. Готовили срезы на ультрамикротомах БС-490 и ЛКБ-4800. Срезы контрастировали уранилацетатом и цитратом свинца и изучали в электронном микроскопе «Тесла БС-500».</p></sec><sec><title>Результаты</title><p>Результаты. В течение фазы акросомы ядро удлиняется и принимает вытянутую форму, при этом клетки изменяют ориентацию в семенном канальце: они располагаются таким образом, что акросомическая структура обращена к базальной мембране канальца. Акросомный колпачок далее развивается в акросому. В последней фазе созревания митохондрии располагаются по спирали вокруг аксонемы жгутикового аппарата. В каудальной части удлиненной сперматиды из дистальной центриоли формируется жгутиковый аппарат сперматозоида, основной компонент хвоста будущего спермия.</p></sec><sec><title>Заключение</title><p>Заключение. На поздних этапах спермиогенеза завершается конденсация хроматина ядра и формирование акросомы. К концу спермиогенеза контакт между поздними сперматидами и клетками Сертоли уменьшается, сперматозоиды перемещаются в просвет семенного канальца и далее в канал придатка семенника.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to investigate the electron microscopic and microscopic features of spermatids at the late stages of spermiogenesis (acrosome phase and maturation phase) in mammals.</p><sec><title>Material and methods</title><p>Material and methods. Material from seven mammalian species (domestic bull, ram, northern fur seal, sea otter, Eurasian beaver, mink, black-brown fox) was used. For electron microscopy, testis samples were fixed in 2.5% glutaraldehyde and 1% osmium fixative. Sections were prepared using BS-490 and LKB-4800 ultramicrotomes. The sections were stained with uranyl acetate and lead citrate and examined with a Tesla BS-500 electron microscope.</p></sec><sec><title>Results</title><p>Results. During the acrosome phase, the nucleus elongates and assumes an elongated shape, while the cells change their orientation within the seminiferous tubule: they are positioned so that the acrosomic structure faces the basal membrane of the tubule. The acrosomal cap further develops into the acrosome. In the final maturation phase, mitochondria are arranged in a spiral pattern around the axoneme of the flagellar apparatus. In the caudal part of the elongated spermatid, the flagellar apparatus of the spermatozoon, which is the main component of the future sperm tail, is formed from the distal centriole.</p></sec><sec><title>Conclusion</title><p>Conclusion. At the late stages of spermiogenesis, chromatin condensation in the nucleus and acrosome formation are completed. By the end of spermiogenesis, the contact between late spermatids and Sertoli cells diminishes, and spermatozoa move into the lumen of the seminiferous tubule and subsequently into the epididymal duct.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>mammals</kwd><kwd>spermiogenesis</kwd><kwd>acrosome phase and maturation phase</kwd><kwd>spermatids</kwd><kwd>electron microscopy</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mammals</kwd><kwd>spermiogenesis</kwd><kwd>acrosome phase and maturation phase</kwd><kwd>spermatids</kwd><kwd>electron microscopy</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">Бороздин Э.К. Сперматогенез и цикл семенного эпителия у северного оленя. Архив. 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