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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">Genes &amp; Cells</journal-id><journal-title-group><journal-title xml:lang="en">Genes &amp; Cells</journal-title><trans-title-group xml:lang="ru"><trans-title>Гены и Клетки</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>Genes and Cells</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-1829</issn><issn publication-format="electronic">2500-2562</issn><publisher><publisher-name xml:lang="en">Human Stem Cells Institute</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">126445</article-id><article-id pub-id-type="doi">10.23868/gc126445</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original Study Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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">Quantitative accounting of CD34+ hematopoietic stem cells in whole cord blood</article-title><trans-title-group xml:lang="ru"><trans-title>Количественный учет CD34+ гемопоэтических стволовых клеток в цельной пуповинной крови</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kurtova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Куртова</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Laboratory of Clinical Immunology and Molecular Diagnostics</p></bio><bio xml:lang="ru"><p>Лаборатория клинической иммунологии и молекулярной диагностики</p></bio><email>redaktor@celltranspl.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zueva</surname><given-names>E. E.</given-names></name><name xml:lang="ru"><surname>Зуева</surname><given-names>Е. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Laboratory of Clinical Immunology and Molecular Diagnostics</p></bio><bio xml:lang="ru"><p>Лаборатория клинической иммунологии и молекулярной диагностики</p></bio><email>redaktor@celltranspl.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Laboratory Diagnostics Center of St. Petersburg State Medical University named after Academician IL. Pavlov</institution></aff><aff><institution xml:lang="ru">Центр лабораторной диагностики СПбГМУ им. акад. ИЛ. Павлова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2006-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2006</year></pub-date><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>66</fpage><lpage>71</lpage><history><date date-type="received" iso-8601-date="2023-01-19"><day>19</day><month>01</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-01-19"><day>19</day><month>01</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Эко-Вектор</copyright-statement><copyright-year>2023</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://genescells.ru/2313-1829/article/view/126445">https://genescells.ru/2313-1829/article/view/126445</self-uri><abstract xml:lang="en"><p>Umbilical cord blood is an alternative source of hematopoietic stem cells to bone marrow and mobilized peripheral blood [HSC]. The population of CD34" cells in umbilical cord blood is small, which creates certain difficulties in carrying out quantitative accounting of HSC. This article discusses some practical aspects of determining CD34" HSC in whole cord blood. A preliminary assessment of the amount of HSC in the samples before the start of preparation for long-term storage may become an additional selection criterion when receiving cord blood in non-commercial anonymous banks.</p></abstract><trans-abstract xml:lang="ru"><p>Пуповинная кровь является альтернативным костному мозгу и мобилизованной периферической крови источником гемопоэтических стволовых клеток [ГСК]. Популяция CD34" клеток в пуповинной крови является малочисленной, что создает определенные трудности при проведении количественного учета ГСК. В данной статье рассмотрены некоторые практические аспекты определения CD34" ГСК в цельной пуповинной крови. Предварительная оценка количества ГСК в образцах до начала подготовки к длительному хранению может стать дополнительным критерием отбора при приеме пуповинной крови в некоммерческие анонимные банки.</p></trans-abstract><kwd-group xml:lang="en"><kwd>cord blood</kwd><kwd>CD34+ hematopoietic stem cells</kwd><kwd>flow cytometry</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пуповинная кровь</kwd><kwd>CD34+ гемопоэтические стволовые клетки</kwd><kwd>проточная цитометрия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Watt S., Contreras М. Stem cell medicine: Umbilical cord blood and its stem cell potential. Semin. Fetal. Neonat. Med. 2005; 10: 209-20.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Bradley M.B., Cairo M.S. Cord blood immunology and stem cell transplantation. 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