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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Pediatric Hematology/Oncology and Immunopathology</journal-id><journal-title-group><journal-title xml:lang="en">Pediatric Hematology/Oncology and Immunopathology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы гематологии/онкологии и иммунопатологии в педиатрии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-1708</issn><issn publication-format="electronic">2414-9314</issn><publisher><publisher-name xml:lang="en">Fund Doctors, Innovations, Science for Children</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">510</article-id><article-id pub-id-type="doi">10.24287/1726-1708-2021-20-2-84-96</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Non-spherocytic hemolytic anemia caused by erythrocyte pyruvate kinase defiiency: the analysis of genetic defects in pediatric patients, living in Russian Federation</article-title><trans-title-group xml:lang="ru"><trans-title>Несфероцитарная гемолитическая анемия, вызванная дефицитом пируваткиназы эритроцитов: анализ генных нарушений пациентов детского возраста в Российской Федерации</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Cherniak</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Черняк</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p> Ekaterina A. Cherniak, scientifi co-worker of the department of optimizing of treatment of hematological diseases</p><p>1179971, Moscow, Samory Mashela st., 1</p></bio><bio xml:lang="ru"><p> Черняк Екатерина Александровна, научный сотрудник отдела оптимизациилечения гематологических заболеваний117997, Москва, ул. Саморы Машела, 1</p></bio><email>katerina.chernyak@fccho-moscow.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sokolova</surname><given-names>N. E.</given-names></name><name xml:lang="ru"><surname>Соколова</surname><given-names>Н. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Semiglazova</surname><given-names>K. V.</given-names></name><name xml:lang="ru"><surname>Семиглазова</surname><given-names>К. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lavrentyeva</surname><given-names>I. N.</given-names></name><name xml:lang="ru"><surname>Лаврентьева</surname><given-names>И. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Donush</surname><given-names>E. K.</given-names></name><name xml:lang="ru"><surname>Донюш</surname><given-names>Е. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Plaksina</surname><given-names>O. I.</given-names></name><name xml:lang="ru"><surname>Плаксина</surname><given-names>О. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Borisova</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Борисова</surname><given-names>М. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff6"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Danilyuk</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Данилюк</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff7"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mitrofanova</surname><given-names>E. S.</given-names></name><name xml:lang="ru"><surname>Митрофанова</surname><given-names>Е. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff8"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Baturskaya</surname><given-names>I. P.</given-names></name><name xml:lang="ru"><surname>Батурская</surname><given-names>И. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff9"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Revina</surname><given-names>N. G.</given-names></name><name xml:lang="ru"><surname>Ревина</surname><given-names>Н. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff10"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Burlutskaya</surname><given-names>T. I.</given-names></name><name xml:lang="ru"><surname>Бурлуцкая</surname><given-names>Т. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff11"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rakov</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Раков</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff12"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Evstratov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Евстратов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff13"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tselousova</surname><given-names>O. M.</given-names></name><name xml:lang="ru"><surname>Целоусова</surname><given-names>О. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff14"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lebedev</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Лебедев</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff15"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chaplygina</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Чаплыгина</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff16"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Koryakina</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Корякина</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff17"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Osmulskaya</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Осмульская</surname><given-names>Н. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff18"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Afanasyeva</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Афанасьева</surname><given-names>Е. И.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff19"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nikonova</surname><given-names>O. E.</given-names></name><name xml:lang="ru"><surname>Никонова</surname><given-names>О. Е.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff20"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sokolova</surname><given-names>L. I.</given-names></name><name xml:lang="ru"><surname>Соколова</surname><given-names>Л. И.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff21"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tsedenisheeva</surname><given-names>E. Kh.</given-names></name><name xml:lang="ru"><surname>Цыденешеева</surname><given-names>Е. Х.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff22"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yunusova</surname><given-names>I. M.</given-names></name><name xml:lang="ru"><surname>Юнусова</surname><given-names>И. М.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff23"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zauralov</surname><given-names>E. O.</given-names></name><name xml:lang="ru"><surname>Зауралов</surname><given-names>Е. О.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff24"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Osipova</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Осипова</surname><given-names>И. В.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff25"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Aslanyan</surname><given-names>K. S.</given-names></name><name xml:lang="ru"><surname>Асланян</surname><given-names>К. С.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff26"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sipacheva</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Сипачёва</surname><given-names>Е. В.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff27"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Boldyreva</surname><given-names>O. P.</given-names></name><name xml:lang="ru"><surname>Болдырева</surname><given-names>О. П.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff28"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kazaryan</surname><given-names>G. R.</given-names></name><name xml:lang="ru"><surname>Казарян</surname><given-names>Г. Р.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff29"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Basharova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Башарова</surname><given-names>Е. В.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff30"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mann</surname><given-names>S. G.</given-names></name><name xml:lang="ru"><surname>Манн</surname><given-names>С. Г.</given-names></name></name-alternatives><bio xml:lang="en"><p>1179971, Moscow, Samory Mashela st., 1</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff31"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kurnikova</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Курникова</surname><given-names>М. А.</given-names></name></name-alternatives><bio xml:lang="en"><p>1179971, Moscow, Samory Mashela st., 1</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff31"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Raikina</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Райкина</surname><given-names>Е. В.</given-names></name></name-alternatives><bio xml:lang="en"><p>1179971, Moscow, Samory Mashela st., 1</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff31"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Smetanina</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Сметанина</surname><given-names>Н. С.</given-names></name></name-alternatives><bio xml:lang="en"><p>1179971, Moscow, Samory Mashela st., 1</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff31"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Ministry of Healthcare of the Russian Federation, Moscow</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Children's City Multidisciplinary Clinical Specialized Center of High Medical Technologies, Saint-Petersburg</institution></aff><aff><institution xml:lang="ru">СПб ГБУЗ «Детский городской многопрофильный клинический специализированный центр высоких медицинских технологий»</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Morozov Children’s City Clinical Hospital, Department of Health in Moscow, Moscow</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Морозовская детская городская клиническая больница Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Russian Children's Clinical Hospital of the N.I. Pirogov Russian National Research Medical University of Ministry of Healthcare of the Russian Federation, Moscow</institution></aff><aff><institution xml:lang="ru">Российская детская клиническая больница ФГАОУ ВО «Российский национальный исследовательский&#13;
медицинский университет им. Н.И. Пирогова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Regional Children's Clinical Hospital, Nizhny Novgorod</institution></aff><aff><institution xml:lang="ru">ГБУЗ НО «Нижегородская областная детская клиническая больница»</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Krasnoyarsk Regional Clinical Center for Maternity and Childhood Protection, Perinatal Center, Krasnoyarsk</institution></aff><aff><institution xml:lang="ru">Перинатальный центр КГБУЗ «Красноярский краевой клинический центр охраны материнства и детства»</institution></aff></aff-alternatives><aff-alternatives id="aff7"><aff><institution xml:lang="en">Regional Oncological Dispensary, Penza</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Областной онкологический диспансер», Пенза</institution></aff></aff-alternatives><aff-alternatives id="aff8"><aff><institution xml:lang="en">Children's Regional Clinical Hospital, Tula</institution></aff><aff><institution xml:lang="ru">ГУЗ «Тульская детская областная клиническая больница», Тула</institution></aff></aff-alternatives><aff-alternatives id="aff9"><aff><institution xml:lang="en">Amur Regional Children's Clinical Hospital, Blagoveshchensk</institution></aff><aff><institution xml:lang="ru">ГАУЗ АО «Амурская областная детская клиническая больница», Благовещенск</institution></aff></aff-alternatives><aff-alternatives id="aff10"><aff><institution xml:lang="en">Regional Children's Clinical Hospital named after P.G. Vyzhletsova, Arkhangelsk</institution></aff><aff><institution xml:lang="ru">ГБУЗ АО «Архангельская областная детская клиническая больница им. П.Г. Выжлецова», Архангельск</institution></aff></aff-alternatives><aff-alternatives id="aff11"><aff><institution xml:lang="en">Children's Regional Clinical Hospital, Belgorod</institution></aff><aff><institution xml:lang="ru">ОГБУЗ «Детская областная клиническая больница», Белгород</institution></aff></aff-alternatives><aff-alternatives id="aff12"><aff><institution xml:lang="en">Regional Children's Hospital, Bryansk</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Брянская областная детская больница», Брянск</institution></aff></aff-alternatives><aff-alternatives id="aff13"><aff><institution xml:lang="en">Regional Clinical Children's Hospital, Kaluga</institution></aff><aff><institution xml:lang="ru">3ГБУЗ КО «Калужская областная клиническая детская больница», Калуга</institution></aff></aff-alternatives><aff-alternatives id="aff14"><aff><institution xml:lang="en">Kirov Research Institute of Hematology and Blood Transfusion, FMBA of Russia, Kirov</institution></aff><aff><institution xml:lang="ru">ФГБУН «Кировский научно-исследовательский институт гематологии и переливания крови» ФМБА России, Киров</institution></aff></aff-alternatives><aff-alternatives id="aff15"><aff><institution xml:lang="en">Children's Regional Clinical Hospital, Krasnodar</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Детская краевая клиническая больница» Министерства здравоохранения Краснодарского края, Краснодар</institution></aff></aff-alternatives><aff-alternatives id="aff16"><aff><institution xml:lang="en">Regional Children's Clinical Hospital, Kursk</institution></aff><aff><institution xml:lang="ru">ОБУЗ «Областная детская клиническая больница», Курск</institution></aff></aff-alternatives><aff-alternatives id="aff17"><aff><institution xml:lang="en">Regional Children's Hospital, Lipetsk</institution></aff><aff><institution xml:lang="ru">ГУЗ «Областная детская больница», Липецк</institution></aff></aff-alternatives><aff-alternatives id="aff18"><aff><institution xml:lang="en">Regional Children's Clinical Hospital, Omsk</institution></aff><aff><institution xml:lang="ru">БУЗ ОО «Областная детская клиническая больница», Омск</institution></aff></aff-alternatives><aff-alternatives id="aff19"><aff><institution xml:lang="en">Regional Children's Clinical Hospital, Orenburg</institution></aff><aff><institution xml:lang="ru">ГАУЗ «Областная детская клиническая больница», Оренбург</institution></aff></aff-alternatives><aff-alternatives id="aff20"><aff><institution xml:lang="en">Perm Regional Children’s Clinical Hospital, Perm</institution></aff><aff><institution xml:lang="ru">Детский онкогематологический центр им. Ф.П. Гааза ГБУЗ «Пермская краевая детская клиническая больница», Пермь</institution></aff></aff-alternatives><aff-alternatives id="aff21"><aff><institution xml:lang="en">Children's city hospital. Republican Children's Oncohematological Center, Yoshkar-Ola</institution></aff><aff><institution xml:lang="ru">ГБУЗ РМЭ «Йошкар-Олинская детская городская больница». Республиканский детский онкогематологический центр, Йошкар-Ола</institution></aff></aff-alternatives><aff-alternatives id="aff22"><aff><institution xml:lang="en">Children's Republican Clinical Hospital, Ulan-Ude</institution></aff><aff><institution xml:lang="ru">ГУЗ «Детская республиканская клиническая больница» Министерства здравоохранения Республики Бурятия, Улан-Удэ</institution></aff></aff-alternatives><aff-alternatives id="aff23"><aff><institution xml:lang="en">N.M. Kuraev Children's Republican Clinical Hospital, Ministry of Healthcare of the Republic of Dagestan, Makhachkala</institution></aff><aff><institution xml:lang="ru">3ГБУ РД «Детская республиканская клиническая больница им. Н.М. Кураева» Министерства здравоохранения Республики Дагестан, Махачкала</institution></aff></aff-alternatives><aff-alternatives id="aff24"><aff><institution xml:lang="en">Children's Republican Clinical Hospital, Saransk</institution></aff><aff><institution xml:lang="ru">ГБУЗ РМ «Детская республиканская клиническая больница», Саранск</institution></aff></aff-alternatives><aff-alternatives id="aff25"><aff><institution xml:lang="en">Regional Children’s Clinical Hospital, Kazan</institution></aff><aff><institution xml:lang="ru">ГАУЗ «Детская республиканская клиническая больница» Министерства здравоохранения Республики Татарстан, Казань</institution></aff></aff-alternatives><aff-alternatives id="aff26"><aff><institution xml:lang="en">Regional Children's Clinical Hospital, Rostov-on-Don</institution></aff><aff><institution xml:lang="ru">ГБУ РО «Областная детская клиническая больница», Ростов-на-Дону</institution></aff></aff-alternatives><aff-alternatives id="aff27"><aff><institution xml:lang="en">Regional Children's Clinical Hospital, Tambov</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Тамбовская областная детская клиническая больница», Тамбов</institution></aff></aff-alternatives><aff-alternatives id="aff28"><aff><institution xml:lang="en">Regional Clinical Hospital №1, Tyumen</institution></aff><aff><institution xml:lang="ru">ГБУЗ ТО «Областная клиническая больница №1», Тюмень</institution></aff></aff-alternatives><aff-alternatives id="aff29"><aff><institution xml:lang="en">Regional Children’s Clinical Hospital, Nizhnevartovsk</institution></aff><aff><institution xml:lang="ru">БУ «Нижневартовская окружная клиническая детская больница», Нижневартовск</institution></aff></aff-alternatives><aff-alternatives id="aff30"><aff><institution xml:lang="en">Regional Children's Clinical Hospital, Chelyabinsk</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Челябинская областная детская клиническая больница», Челябинск</institution></aff></aff-alternatives><aff-alternatives id="aff31"><aff><institution xml:lang="en">Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Ministry of Healthcare of the Russian&#13;
Federation, Moscow</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева» Минздрава России, Москва</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-05-22" publication-format="electronic"><day>22</day><month>05</month><year>2021</year></pub-date><volume>20</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>84</fpage><lpage>96</lpage><history><date date-type="received" iso-8601-date="2021-05-20"><day>20</day><month>05</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-05-20"><day>20</day><month>05</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, «D. Rogachev NMRCPHOI»</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">«D. Rogachev NMRCPHOI»</copyright-holder><copyright-holder xml:lang="ru">ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://hemoncim.com/jour/article/view/510">https://hemoncim.com/jour/article/view/510</self-uri><abstract xml:lang="en"><p>The article presents retrospective data analysis of a cohort of patients with PKD (n = 41 patients, aged 4 months – 26,5 years, median of age – 5 years 1 month) who were examined at the Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology for unspecifid hereditary hemolytic anemia during the period 2013–2020. The study was approved by the Independent Ethics Committee of the Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology. In all patients, the diagnosis was confimed by Next Generation sequencing (NGS). The homozygous mutations in the PKLR gene were found in 10 patients (24.39%), compound heterozygous mutations in 31 patients (75.61%), 77.78% of them were missense mutations. Gender distribution (male:female) was 1:1.73. At least once transfusion of erythrocyte suspension was required to 40 (97.56%) patients. The minimum age at the time of the debut of transfusion dependence was the fist day of life, the maximum was 4 years. Exchange blood transfusion was performed in 13 children, severe normocytic hyperregenerative anemia with transfusion of red blood cells in the fist days of life was noted in 12 children, at the 1st month of life – in 9 children, at the 2nd month of life – in 8 children, at the 3rd month – in 6 children, at the 5th month – in 2 children, at the 1st year – in 1 child, and 2 children underwent single transfusions on the background of infectious episodes at 3 and 4 years respectively. Splenectomy due to high transfusion dependence was performed in 10 patients: transfusion independence was achieved in 5 patients, in 5 – an increase in the interval between blood transfusions. Median of surgical intervention (9 patients): 7 years 4 months, minimum age – 1 year 4 months, maximum – 14 years 4 months. In total, 36 genotypes were described in 41 patients, among them were: c.1529G&gt;A in 3 patients, c.1137_1139del / c.1456C&gt;T – in 2 patients, c.1079G&gt;A/c.1529G&gt;A in 2 patients, c.1130T&gt;C/c.1456C&gt;T in 2 patients, other genotypes occurred once. Two mutations were the most frequent: c.1456C&gt;T (16.67%) and c.1529G&gt;A (16.67%). 19 (46,34%) of patients had previously not described mutations.</p></abstract><trans-abstract xml:lang="ru"><p>В статье представлен ретроспективный анализ группы пациентов с дефицитом пируваткиназы эритроцитов (n = 41; медиана возраста – 5 лет 1 месяц: от 4 месяцев до 26 лет 6 месяцев), проходивших обследование в НМИЦ ДГОИ им. Дмитрия Рогачева по поводу неуточненной наследственной гемолитической анемии в период с 2013 по 2020 г. Данное исследование одобрено локальным этическим комитетом и утверждено решением ученого совета НМИЦ ДГОИ им. Дмитрия Рогачева. Всем пациентам диагноз был подтвержден молекулярно-генетическим исследованием, выполненным методом высокопроизводительного секвенирования ДНК (NGS). Гомозиготные мутации в гене PKLR были обнаружены у 10 (24,39%) пациентов, компаунд-гетерозиготные мутации – у 31 (75,61%). Среди них 77,78% составили миссенс-мутации. Распределение по полу (мужской:женский) составило 1:1,73. Хотя бы однократно трансфузия эритроцитной взвеси потребовалась 40 (97,56%) пациентам. Минимальный возраст на момент дебюта трансфузионной зависимости – 1 сутки жизни, максимальный – 4 года. Заменное переливание крови было выполнено 13 детям, тяжелая нормоцитарная гиперрегенераторная анемия с проведением заместительной терапии эритроцитной взвесью в первые месяцы жизни отмечена у 12 пациентов: на 1-м месяце – у 9, на 2-м месяце – у 8, на 3-м месяце – у 6, на 5-м месяце – у 2 детей, на 1-м году жизни – у 1 ребенка, а у 2 детей трансфузии были выполнены однократно на фоне инфекционных эпизодов в 3 и 4 года. Спленэктомия в связи с высокой трансфузионной зависимостью выполнена 10 пациентам: трансфузионная независимость достигнута у 5 детей, у 5 – увеличение интервала между гемотрансфузиями. Медиана возраста проведения оперативного вмешательства составила 7 лет 4 месяца (от 1 года до 14 лет). Всего у 41 пациента было описано 36 генотипов: c.1529G&gt;A – у 3 детей, c.1137_1139del/c.1456C&gt;T – у 2, c.1079G&gt;A/c.1529G&gt;A – у 2, c.1130T&gt;C/c.1456C&gt;T – у 2, остальные генотипы встречались однократно. С наибольшей частотой встречались 2 мутации: c.1456C&gt;T (16,67%) и c.1529G&gt;A (16,67%). У 19 (46,34%) пациентов зафиксированы ранее не описанные мутации.</p></trans-abstract><kwd-group xml:lang="en"><kwd>hemolytic anemia</kwd><kwd>pyruvate kinase defiiency</kwd><kwd>pyruvate kinase</kwd><kwd>hereditary non-spherocytic anemia</kwd><kwd>genetic mutations</kwd><kwd>multicenter study</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гемолитическая анемия</kwd><kwd>дефицит пируваткиназы</kwd><kwd>пируваткиназа</kwd><kwd>наследственная несфероцитарная анемия</kwd><kwd>дети</kwd><kwd>генетические мутации</kwd><kwd>мультицентровое исследование</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">1. Zanella A., Fermo E., Bianchi P., Valentini G. Red cell pyruvate kinase defciency: molecular and clinical aspects. Br J Haematol 2005; 130 (1): 11–25. 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