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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">mimmun</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская иммунология</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Immunology (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1563-0625</issn><issn pub-type="epub">2313-741X</issn><publisher><publisher-name>SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15789/1563-0625-DOR-2587</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2587</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Определение референтных интервалов циркулирующих в крови эксцизионных колец TREC и KREC у лиц старше 18 лет</article-title><trans-title-group xml:lang="en"><trans-title>Determination of reference values for TREC and KREC in circulating blood of the persons over 18 years</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7603-3269</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сайтгалина</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Saitgalina</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сайтгалина Мария Александровна – младший научный сотрудник лаборатории молекулярной иммунологии </p><p>197101, Санкт-Петербург, ул. Мира, 14</p></bio><bio xml:lang="en"><p>Saitgalina Maria A., Junior Research Associate, Laboratory of Molecular Immunology Saint Petersburg Pasteur Institute</p><p>197101, St. Petersburg, Mira str., 14</p></bio><email xlink:type="simple">Sajgalinam@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>Любимова</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Liubimova</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Любимова Наталья Евгеньевна – кандидат биологических наук, научный сотрудник лаборатории молекулярной иммунологии</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Liubimova Natalia E., PhD (Biology), Research Associate, Laboratory of Molecular Immunology</p><p>St. Petersburg</p></bio><email xlink:type="simple">natelu@mail.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/0000-0003-2270-8897</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Останкова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ostankova</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Останкова Юлия Владимировна – кандидат биологических наук, заведующая лабораторией иммунологии и вирусологии ВИЧ-инфекции, старший научный сотрудник лаборатории молекулярной иммунологии</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Ostankova Yulia V., PhD (Biology), Head, Laboratory of Immunology and Virology HIV, Senior Research Associate, Laboratory of Molecular Immunology</p><p>St. Petersburg</p></bio><email xlink:type="simple">shenna1@yandex.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/0000-0003-1668-6716</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузнецова</surname><given-names>Р. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetzova</surname><given-names>R. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кузнецова Раиса Николаевна – кандидат медицинских наук, врач-иммунолог ФБУН «Санкт-Петербургский научно-исследовательский институт эпидемиологии и микробиологии имени Пастера» Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека; доцент кафедры иммунологии ФГБОУ ВО «Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова» Министерства здравоохранения РФ</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Kuznetsova Raisa N., PhD (Medicine), Clinical Immunologist, Saint Petersburg Pasteur Institute; Associate Professor, Department of Immunology, First St. Petersburg State I.Pavlov Medical University</p><p>St. Petersburg</p></bio><email xlink:type="simple">kuznetzova.rais@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/0000-0003-4571-8799</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тотолян</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Totolian</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тотолян Арег Артемович – доктор медицинских наук, профессор, академик РАН, заведующий лабораторией молекулярной иммунологии, директор ФБУН «Санкт-Петербургский научно-исследовательский институт эпидемиологии и микробиологии имени Пастера» Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека; заведующий кафедрой иммунологии ФГБОУ ВО «Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова» Министерства здравоохранения РФ</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Totolian Areg A., PhD, MD (Medicine), Professor, Full Member, Russian Academy of Sciences, Head, Laboratory of Molecular Immunology, Director, Saint Petersburg Pasteur Institute; Head, Department of Immunology, First St. Petersburg State I. Pavlov Medical Universit</p><p>St. Petersburg</p></bio><email xlink:type="simple">totolian@pasteurorg.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБУН «Санкт-Петербургский НИИ эпидемиологии и микробиологии имени Пастера» Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg Pasteur Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФБУН «Санкт-Петербургский НИИ эпидемиологии и микробиологии имени Пастера» Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека; ФГБОУ ВО «Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова» Министерства здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg Pasteur Institute; &#13;
First St. Petersburg State I. Pavlov Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>08</day><month>12</month><year>2022</year></pub-date><volume>24</volume><issue>6</issue><fpage>1227</fpage><lpage>1236</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сайтгалина М.А., Любимова Н.Е., Останкова Ю.В., Кузнецова Р.Н., Тотолян А.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Сайтгалина М.А., Любимова Н.Е., Останкова Ю.В., Кузнецова Р.Н., Тотолян А.А.</copyright-holder><copyright-holder xml:lang="en">Saitgalina M.A., Liubimova N.E., Ostankova Y.V., Kuznetzova R.N., Totolian A.A.</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://www.mimmun.ru/mimmun/article/view/2587">https://www.mimmun.ru/mimmun/article/view/2587</self-uri><abstract><p>Все большее внимание обращают на себя способы выявления первичных и вторичных Т- и/или В-клеточных иммунодефицитов, внедрение которых в лабораторную диагностику способствовало бы скорейшему выявлению иммунодефицитных состояний. В настоящее время неуклонно увеличивается количество выявленных взрослых больных с иммунодефицитами различного генеза. Поскольку пол, возраст и раса пациентов могут являться значимыми факторами состояния иммунитета, определение популяционных референтных интервалов содержания молекул TREC и KREC в периферической крови взрослой популяции для дальнейшего выявления и углубленного обследования сложных случаев как врожденных, так и приобретенных иммунодефицитных состояний является актуальной задачей современной молекулярно-генетической лабораторной диагностики. Цель – определить референтные интервалы количественного содержания фрагментов ДНК TREC и KREC в периферической крови среди взрослого населения Санкт-Петербурга. Использовали образцы цельной крови, полученные от 717 условно здоровых добровольцев в возрасте от 18 до 108 лет в рамках программы оценки популяционного иммунитета жителей СанктПетербурга. Критерием исключения добровольца из исследования являлось наличие диагноза иммунодефицит любого генеза, вирусный гепатит А, В, С, ВИЧ-инфекция. Определение количественного содержания целевых фрагментов ДНК TREC и KREC проводили с использованием набора реагентов для количественного определения эксцизионных колец TREC и KREC методом полимеразной цепной реакции с детекцией в режиме реального времени (TREC/KREC-AMP PS). Определение референтных интервалов прямым методом проводили согласно рекомендациям Международной федерации клинической химии и Государственного стандарта (ГОСТ) Р 53022.3-2008. В рамках исследования добровольцы были разделены на шесть возрастных групп: 18-29 лет, 30-39 лет, 40-49 лет, 50-59 лет, 60-69 лет и лица старше 70 лет. Определено количественное содержание молекул TREC и KREC в каждом образце крови для всех групп. Корреляционный анализ позволил установить отрицательную зависимость концентрации молекул TREC в образцах крови с возрастом участников исследования (коэффициент корреляции Спирмена r = -0,80 (p-value &lt; 0,0001)). Выявлены достоверные различия в уровнях TREC между разными возрастными группами. Корреляционной зависимости содержания молекул KREC в образцах крови от возраста и различий между возрастными группами не установлено. Определены референсные интервалы уровня TREC для каждой выделенной возрастной группы. Для всех групп установлен единый референсный интервал уровней молекул KREC. Определенные РИ TREC и KREC у взрослых людей значительно ниже, чем у новорожденных. Полученные результаты, позволившие определить референсные интервалы уровней TREC и KREC для взрослых людей, будут способствовать эффективной персонифицированной лабораторной диагностике иммунодефицитных состояний различного генеза.</p></abstract><trans-abstract xml:lang="en"><p>Increasing attention is being paid to methods for detecting primary and secondary T and/or B cell immunodeficiencies. Their implementation into laboratory diagnostics would contribute to the early diagnostics of immunodeficiencies. Currently, the number of identified adult patients with immunodeficiencies of various origins is steadily increasing. Age, gender and ethnicity of patients may be significant factors of immunity. Hence, determination of the population reference intervals for TREC and KREC DNA excision rings in peripheral blood of adult persons is an urgent laboratory task for in-depth examination of both congenital and acquired immunodeficiency conditions. Our purpose was to determine the reference intervals for the quantitative assay of TREC and KREC fragments in peripheral blood among the adult population of St. Petersburg. We studied whole blood samples obtained from 717 apparently healthy volunteers aged 18 to 108 years within the program of population immunity assessment among residents of St. Petersburg. The exclusion criterion included immunodeficiency of any origin, viral hepatitis A, B, C, HIV infection. Quantitation of the target TREC and KREC DNA fragments was carried out using a set of reagents for the quantitative determination of excisional rings TREC and KREC by Real-time PCR (TREC/KREC-AMP PS). The reference intervals were determined by the direct method according to the recommendations of the International Federation of Clinical Chemistry and the Russian State Standard (GOST) R 53022.3-2008. The volunteers were divided into six age groups: 18-29, 30-39, 40-49, 50-59, 60-69 years old, and the persons over 70. The amounts of TREC and KREC in each blood sample were determined for all age groups. Upon correlation analysis, we have revealed a negative relationship between the concentration of TREC molecules in blood samples, and the age of study participants (Spearman correlation coefficient r = -0.80 (p-value &lt; 0.0001)). Significant differences in TREC levels between different age groups were revealed. No correlations were detected between KREC contents in blood samples and age as well as any differences between age groups. Reference intervals of the TREC level were determined for each mentioned age group. A unified reference range was established for the KREC levels. The established reference intervals for TREC and KREC molecules in adults are significantly lower than in newborns. The obtained results enable determination of reference intervals for TREC and KREC levels among adults, thus contributing to effective personalized laboratory diagnosis of immunodeficiency states of various origins.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>иммунный статус</kwd><kwd>иммунодефицит</kwd><kwd>TREC</kwd><kwd>KREC</kwd><kwd>метод диагностики</kwd><kwd>референсный интервал.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>immune status</kwd><kwd>immunodeficiency</kwd><kwd>TREC</kwd><kwd>KREC</kwd><kwd>diagnostic method</kwd><kwd>reference interval</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">ГОСТ Р 53022.3-2008. Технологии лабораторные клинические. Требования к качеству клинических лабораторных исследований. Часть 3. Правила оценки клинической информативности лабораторных тестов. Введ. 2010-01-01. М.: Стандарт информ, 2009. 19 с.</mixed-citation><mixed-citation xml:lang="en">GOST R 53022.3-2008. Clinical laboratory technologies. Requirements for the quality of clinical laboratory research. Part 3. Rules for assessing the clinical informativeness of laboratory tests. Introduction 2010-01-01]. Moscow: Standart inform, 2009. 19 p.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Евгина С.А., Савельев Л.И. Современные теория и практика референтных интервалов // Лабораторная служба, 2019. T. 8, № 2. С. 36-44.</mixed-citation><mixed-citation xml:lang="en">Evgina S.A., Saveliev L.I. Сurrent theory and practice of reference interval. Laboratornaya sluzhba = Laboratory Service, 2019, Vol. 8, no. 2, pp. 36-44. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Клинические рекомендации. Первичные иммунодефициты преимущественно с недостаточностью антител (D80- D 80.9; D83 – D83.2; D83.8; D83.9). 2018. [Электронный ресурс]. Режим доступа: https://nrcii.ru/specialistam/klinrecommend/pid.pdf.</mixed-citation><mixed-citation xml:lang="en">Сlinical guidelines. Primary immunodeficiencies predominantly with antibody deficiency (D80- D 80.9; D83 – D83.2; D83.8; D83.9). 2018. [Electronic resourse]. Access mode: https://nrcii.ru/specialistam/klinrecommend/pid.pdf.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Сайтгалина М.А., Останкова Ю.В., Любимова Н.Е., Семенов А.В., Кузнецова Р.Н., Тотолян А.А. Модифицированный метод количественного определения уровней TREC и KREC в периферической крови у больных с иммунодефицитными состояниями // Инфекция и иммунитет, 2022, T. 12, № 5. С. 981-996. doi: 10.15789/2220-7619-MMF-2039.</mixed-citation><mixed-citation xml:lang="en">Saitgalina M.A., Ostankova Yu.V., Liubimova N.E., Semenov A.V., Kuznetsova R.N., Totolian Areg A. Modified method for quantitative determination of TREC and KREC levels in peripheral blood in patients with immunodeficiency states. Infektsiya i immunitet = Russian Journal of Infection and Immunity, 2022, Vol. 12, no. 5, pp. 981-996. (In Russ.) doi: 10.15789/2220-7619-MMF-2039.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Тузанкина И.А., Каракина М.Л., Власова Е.В. Анализ клинических проявлений дебюта первичных иммунодефицитов у взрослых // Медицинская иммунология, 2014. Т. 4, № 16. C. 367-374. doi: 10.15789/1563-0625-2014-4-367-374.</mixed-citation><mixed-citation xml:lang="en">Tuzankina I.A., Karakina M.L., Vlasova E.V. Analysis of the clinical manifestations of the onset of primary immunodeficiencies in adults. Meditsinskaya immunologiya = Medical Immunology (Russia), 2014, Vol. 4, no. 16, pp. 367-374. (In Russ.) doi: 10.15789/1563-0625-2014-4-367-374.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Ярилин А.А. Иммунология. М.: ГЭОТАР-Медиа, 2010. C. 251-260.</mixed-citation><mixed-citation xml:lang="en">Yarilin A.A. Immunology. Moscow: GEOTAR-Media, 2010, pp. 251-260.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Argudo-Ramírez A., Martín-Nalda A., Marín-Soria J.L., López-Galera R.M., Pajares-García S., González de Aledo-Castillo J.M., Martínez-Gallo M., García-Prat M., Colobran R., Riviere J.G., Quintero Y., Collado T., García-Villoria J., Ribes A., Soler-Palacín P. First Universal Newborn Screening Program for Severe Combined Immunodeficiency in Europe. Two-Years’ Experience in Catalonia (Spain). Front. Immunol., 2019, Vol. 10, 2406. doi:10.3389/fimmu.2019.02406.</mixed-citation><mixed-citation xml:lang="en">Argudo-Ramírez A., Martín-Nalda A., Marín-Soria J.L., López-Galera R.M., Pajares-García S., González de Aledo-Castillo J.M., Martínez-Gallo M., García-Prat M., Colobran R., Riviere J.G., Quintero Y., Collado T., García-Villoria J., Ribes A., Soler-Palacín P. First Universal Newborn Screening Program for Severe Combined Immunodeficiency in Europe. Two-Years’ Experience in Catalonia (Spain). Front. Immunol., 2019, Vol. 10, 2406. doi:10.3389/fimmu.2019.02406.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Brown J.J., Datta V., Browning M.J., Swift P.G.F. Graves’ disease in DiGeorge syndrome: patient report with a review of endocrine autoimmunity associated with 22q11.2 deletion. J. Pediatr. Endocrinol. Metab., 2004, Vol. 17, pp. 1575-1579.</mixed-citation><mixed-citation xml:lang="en">Brown J.J., Datta V., Browning M.J., Swift P.G.F. Graves’ disease in DiGeorge syndrome: patient report with a review of endocrine autoimmunity associated with 22q11.2 deletion. J. Pediatr. Endocrinol. Metab., 2004, Vol. 17, pp. 1575-1579.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">CLSI Document C28-A3c. Defining, establishing, and verifying reference intervals in the clinical laboratory. Approved guideline. Third edition. Wayne. Pa. USA: CLSI. 2010. Available at: https://clsi.org/media/1421/ep28a3c_sample.pdf.</mixed-citation><mixed-citation xml:lang="en">CLSI Document C28-A3c. Defining, establishing, and verifying reference intervals in the clinical laboratory. Approved guideline. Third edition. Wayne. Pa. USA: CLSI. 2010. Available at: https://clsi.org/media/1421/ep28a3c_sample.pdf.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Dar N., Gothelf D., Korn D., Frisch A., Weizman A., Michaelovsky E., Carmel M., Yeshayahu Y., DubnovRaz G., Pessach I.M., Simon A.J., Lev A., Somech R. Thymic and bone marrow output in individuals with 22q11.2 deletion syndrome. Pediatr. Res., 2015, Vol. 4, no. 7, pp. 579-585.</mixed-citation><mixed-citation xml:lang="en">Dar N., Gothelf D., Korn D., Frisch A., Weizman A., Michaelovsky E., Carmel M., Yeshayahu Y., DubnovRaz G., Pessach I.M., Simon A.J., Lev A., Somech R. Thymic and bone marrow output in individuals with 22q11.2 deletion syndrome. Pediatr. Res., 2015, Vol. 4, no. 7, pp. 579-585.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">di Renzo M., Pasqui A.L., Auteri A. Common variable immunodeficiency: a review. Clin. Exp. Med., 2004, Vol. 3, no. 4, pp. 211-217.</mixed-citation><mixed-citation xml:lang="en">di Renzo M., Pasqui A.L., Auteri A. Common variable immunodeficiency: a review. Clin. Exp. Med., 2004, Vol. 3, no. 4, pp. 211-217.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Garcia-Prat M., Álvarez-Sierra D., Aguiló-Cucurull A., Salgado-Perandrés S., Briongos-Sebastian S., Franco-Jarava C., Martin-Nalda A., Colobran R., Montserrat I., Hernández-González M., Pujol-Borrell R., SolerPalacin P., Martínez-Gallo M. Extended immunophenotyping reference values in a healthy pediatric population. Cytometry B Clin. Cytom., 2019, Vol. 96, no. 3, pp. 223-233.</mixed-citation><mixed-citation xml:lang="en">Garcia-Prat M., Álvarez-Sierra D., Aguiló-Cucurull A., Salgado-Perandrés S., Briongos-Sebastian S., Franco-Jarava C., Martin-Nalda A., Colobran R., Montserrat I., Hernández-González M., Pujol-Borrell R., SolerPalacin P., Martínez-Gallo M. Extended immunophenotyping reference values in a healthy pediatric population. Cytometry B Clin. Cytom., 2019, Vol. 96, no. 3, pp. 223-233.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Gathmann B. The European internet-based patient and research database for primary immunodeficiencies: update 2011. Clin. Exp. Immunol., 2012, Vol. 167, no. 3, pp. 479-491.</mixed-citation><mixed-citation xml:lang="en">Gathmann B. The European internet-based patient and research database for primary immunodeficiencies: update 2011. Clin. Exp. Immunol., 2012, Vol. 167, no. 3, pp. 479-491.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Hazenberg M.D., Verschuren M.C., Hamann D., Miedema F., van Dongen J.J. T cell receptor excision circles as markers for recent thymic emigrants: basic aspects, technical approach, and guidelines for interpretation. J. Mol. Med., 2001, Vol. 79, no. 11, pp. 631-640.</mixed-citation><mixed-citation xml:lang="en">Hazenberg M.D., Verschuren M.C., Hamann D., Miedema F., van Dongen J.J. T cell receptor excision circles as markers for recent thymic emigrants: basic aspects, technical approach, and guidelines for interpretation. J. Mol. Med., 2001, Vol. 79, no. 11, pp. 631-640.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Jung D., Alt F.W. Unraveling V(D)J recombination; insights into gene regulation. Cell, 2004, Vol. 116, no. 2, pp. 299-311.</mixed-citation><mixed-citation xml:lang="en">Jung D., Alt F.W. Unraveling V(D)J recombination; insights into gene regulation. Cell, 2004, Vol. 116, no. 2, pp. 299-311.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Just H.L., Deleuran M., Vestergaard C., Deleuran B., Thestrup-Pedersen K. T-cell receptor excision circles (TREC) in CD4+ and CD8+ T-cell subpopulations in atopic dermatitis and psoriasis show major differences in the emission of recent thymic emigrants. Acta Derm. Venereol., 2008, Vol. 88, no. 6, pp. 566-572.</mixed-citation><mixed-citation xml:lang="en">Just H.L., Deleuran M., Vestergaard C., Deleuran B., Thestrup-Pedersen K. T-cell receptor excision circles (TREC) in CD4+ and CD8+ T-cell subpopulations in atopic dermatitis and psoriasis show major differences in the emission of recent thymic emigrants. Acta Derm. Venereol., 2008, Vol. 88, no. 6, pp. 566-572.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Kamae C., Nakagawa N., Sato H., Honma K., Mitsuiki N., Ohara O., Kanegane H., Pasic S., PanHammarström Q., van Zelm M.C., Morio T., Imai K., Nonoyama S. Common variable immunodeficiency classification by quantifying T-cell receptor and immunoglobulin κ-deleting recombination excision circles. J. Allergy Clin. Immunol., 2013, Vol. 131, no. 5, pp. 1437-1440.</mixed-citation><mixed-citation xml:lang="en">Kamae C., Nakagawa N., Sato H., Honma K., Mitsuiki N., Ohara O., Kanegane H., Pasic S., PanHammarström Q., van Zelm M.C., Morio T., Imai K., Nonoyama S. Common variable immunodeficiency classification by quantifying T-cell receptor and immunoglobulin κ-deleting recombination excision circles. J. Allergy Clin. Immunol., 2013, Vol. 131, no. 5, pp. 1437-1440.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Kwok J.S.Y., Cheung S.K.F., Ho J.C.Y., Tang I.W.H., Chu P.W.K., Leung E.Y.S. Establishing simultaneous T Cell Receptor Excision Circles (TREC) and K-Deleting Recombination Excision Circles (KREC) quantification assays and laboratory reference intervals in healthy individuals of different age groups in Hong Kong. Front. Immunol., 2020, Vol. 11, 1411. doi: 10.3389/fimmu.2020.01411.</mixed-citation><mixed-citation xml:lang="en">Kwok J.S.Y., Cheung S.K.F., Ho J.C.Y., Tang I.W.H., Chu P.W.K., Leung E.Y.S. Establishing simultaneous T Cell Receptor Excision Circles (TREC) and K-Deleting Recombination Excision Circles (KREC) quantification assays and laboratory reference intervals in healthy individuals of different age groups in Hong Kong. Front. Immunol., 2020, Vol. 11, 1411. doi: 10.3389/fimmu.2020.01411.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Lucas M., Lee M., Lortan J., Lopez-Granados E., Misbah S., Chapel H. J. Infection outcomes in patients with common variable immunodeficiency disorders: relationship to immunoglobulin therapy over 22 years. J. Allergy Clin. Immunol., 2010, Vol. 125, no. 6, pp. 1354-1360.</mixed-citation><mixed-citation xml:lang="en">Lucas M., Lee M., Lortan J., Lopez-Granados E., Misbah S., Chapel H. J. Infection outcomes in patients with common variable immunodeficiency disorders: relationship to immunoglobulin therapy over 22 years. J. Allergy Clin. Immunol., 2010, Vol. 125, no. 6, pp. 1354-1360.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Naylor K., Li G., Vallejo A.N., Lee W.W., Koetz K., Bryl E. The influence of age on T cell generation and TCR diversity. J. Immunol., 2005, Vol. 174, no. 11, pp. 7446-7452.</mixed-citation><mixed-citation xml:lang="en">Naylor K., Li G., Vallejo A.N., Lee W.W., Koetz K., Bryl E. The influence of age on T cell generation and TCR diversity. J. Immunol., 2005, Vol. 174, no. 11, pp. 7446-7452.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Peyvandi S., Lupo P.J., Garbarini J. 22q11.2 deletion in patients with conotruncal defects: data from 1610 consecutive cases. Pediatr. Cardiol., 2013, Vol. 34, no. 7, pp. 1687-1694.</mixed-citation><mixed-citation xml:lang="en">Peyvandi S., Lupo P.J., Garbarini J. 22q11.2 deletion in patients with conotruncal defects: data from 1610 consecutive cases. Pediatr. Cardiol., 2013, Vol. 34, no. 7, pp. 1687-1694.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Pido-Lopez J., Imami N., Aspinall R. Both age and gender affect thymic output: more recent thymic migrants in females than males as they age. Clin. Exp. Immunol., 2001, Vol. 125, no. 3, pp. 409-413.</mixed-citation><mixed-citation xml:lang="en">Pido-Lopez J., Imami N., Aspinall R. Both age and gender affect thymic output: more recent thymic migrants in females than males as they age. Clin. Exp. Immunol., 2001, Vol. 125, no. 3, pp. 409-413.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Quinti I., Soresina A., Spadaro G., Martino S., Donnanno S., Agostini C. Long-term follow-up and outcome of a large cohort of patients with common variable immunodeficiency. J. Clin. Immunol., 2007, Vol. 27, no. 3, pp. 308-316.</mixed-citation><mixed-citation xml:lang="en">Quinti I., Soresina A., Spadaro G., Martino S., Donnanno S., Agostini C. Long-term follow-up and outcome of a large cohort of patients with common variable immunodeficiency. J. Clin. Immunol., 2007, Vol. 27, no. 3, pp. 308-316.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Siest G., Henny J., Grasbeck R., Wilding P., Petitclerc C., Queralto J., Petersen P. The theory of reference values: an unfinished symphony. CCLM, 2013, Vol. 51, no. 1, pp. 47-64.</mixed-citation><mixed-citation xml:lang="en">Siest G., Henny J., Grasbeck R., Wilding P., Petitclerc C., Queralto J., Petersen P. The theory of reference values: an unfinished symphony. CCLM, 2013, Vol. 51, no. 1, pp. 47-64.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Sottini A., Serana F., Bertoli D., Chiarini M., Valotti M., Vaglio Tessitore M., Lmberti L. Simultaneous quantification of T-cell receptor excision circles (TRECs) and K-deleting recombination excision circles (KRECs) by real-time PCR. J. Vis. Exp., 2014, Vol. 94, 52184. doi: 10.3791/52184.</mixed-citation><mixed-citation xml:lang="en">Sottini A., Serana F., Bertoli D., Chiarini M., Valotti M., Vaglio Tessitore M., Lmberti L. Simultaneous quantification of T-cell receptor excision circles (TRECs) and K-deleting recombination excision circles (KRECs) by real-time PCR. J. Vis. Exp., 2014, Vol. 94, 52184. doi: 10.3791/52184.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Tangye S.G., Al-Herz W., Bousfiha A., Chatila T., Cunningham-Rundles C., Etzioni A. Human inborn errors of immunity: 2019 update on the classification from the international union of immunological societies expert committee. J. Clin. Immunol., 2020, Vol. 40, no. 1, pp. 24-64.</mixed-citation><mixed-citation xml:lang="en">Tangye S.G., Al-Herz W., Bousfiha A., Chatila T., Cunningham-Rundles C., Etzioni A. Human inborn errors of immunity: 2019 update on the classification from the international union of immunological societies expert committee. J. Clin. Immunol., 2020, Vol. 40, no. 1, pp. 24-64.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Törlén J., Gaballa A., Remberger M., Mörk L.M., Sundberg B., Mattsson J., Uhlin M. Effect of graftversus-host disease prophylaxis regimens on T and B cell reconstitution after allogeneic hematopoietic stem cell transplantation. Biol. Blood Marrow Transplant., 2019, Vol. 25, no. 6, pp. 1260-1268.</mixed-citation><mixed-citation xml:lang="en">Törlén J., Gaballa A., Remberger M., Mörk L.M., Sundberg B., Mattsson J., Uhlin M. Effect of graftversus-host disease prophylaxis regimens on T and B cell reconstitution after allogeneic hematopoietic stem cell transplantation. Biol. Blood Marrow Transplant., 2019, Vol. 25, no. 6, pp. 1260-1268.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Tuano K.S., Seth N., Chinen J. Secondary immunodeficiencies: An overview. Ann. Allergy Asthma Immunol., 2021, Vol. 127, no. 6, pp. 617-626.</mixed-citation><mixed-citation xml:lang="en">Tuano K.S., Seth N., Chinen J. Secondary immunodeficiencies: An overview. Ann. Allergy Asthma Immunol., 2021, Vol. 127, no. 6, pp. 617-626.</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Urm S.H. Asthma and risk of selective IgA deficiency or common variable immunodeficiency: a population based case control study. Mayo Clin. Proc., 2013, Vol. 88, no. 8, pp. 813-821.</mixed-citation><mixed-citation xml:lang="en">Urm S.H. Asthma and risk of selective IgA deficiency or common variable immunodeficiency: a population based case control study. Mayo Clin. Proc., 2013, Vol. 88, no. 8, pp. 813-821.</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Vadamalai K. Screening for humoral immunodeficiency in patients with community-acquired pneumonia. J. Hosp. Med., 2019, Vol. 14, no. 1, pp. 33-37.</mixed-citation><mixed-citation xml:lang="en">Vadamalai K. Screening for humoral immunodeficiency in patients with community-acquired pneumonia. J. Hosp. Med., 2019, Vol. 14, no. 1, pp. 33-37.</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">van Zelm M.C., van der Burg M., Langerak A.W., van Dongen J.J. PID comes full circle: applications of V(D) J recombination excision circles in research, diagnostics and newborn screening of primary immunodeficiency disorders. Front Immunol., 2011, Vol. 2, 12. doi: 10.3389/fimmu.2011.00012.</mixed-citation><mixed-citation xml:lang="en">van Zelm M.C., van der Burg M., Langerak A.W., van Dongen J.J. PID comes full circle: applications of V(D) J recombination excision circles in research, diagnostics and newborn screening of primary immunodeficiency disorders. Front Immunol., 2011, Vol. 2, 12. doi: 10.3389/fimmu.2011.00012.</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Verbsky J.W. Newborn screening for severe combined immunodeficiency; The wisconsin experience (2008- 2011). J. Clin. Immunol., 2012, Vol. 32, no. 1, pp. 82-88.</mixed-citation><mixed-citation xml:lang="en">Verbsky J.W. Newborn screening for severe combined immunodeficiency; The wisconsin experience (2008- 2011). J. Clin. Immunol., 2012, Vol. 32, no. 1, pp. 82-88.</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Verma N. Therapeutic management of primary immunodeficiency in older patients. Drugs Aging, 2013, Vol. 30, no. 7, pp. 503-512.</mixed-citation><mixed-citation xml:lang="en">Verma N. Therapeutic management of primary immunodeficiency in older patients. Drugs Aging, 2013, Vol. 30, no. 7, pp. 503-512.</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Verstegen R.H.J. Impact of Down syndrome on the performance of neonatal screening assays for severe primary immunodeficiency diseases. J. Allergy Clin. Immunol., 2014, Vol. 133, no. 4, pp. 1208-1211.</mixed-citation><mixed-citation xml:lang="en">Verstegen R.H.J. Impact of Down syndrome on the performance of neonatal screening assays for severe primary immunodeficiency diseases. J. Allergy Clin. Immunol., 2014, Vol. 133, no. 4, pp. 1208-1211.</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Zhao Q., Dai R., Li Y., Wang Y., Chen X., Shu Z., Zhou L., Ding Y., Tang X., Zhao X. Trends in TREC values according to age and gender in Chinese children and their clinical applications. Eur. J. Pediatr., 2022, Vol. 181, no. 2, pp. 529-538.</mixed-citation><mixed-citation xml:lang="en">Zhao Q., Dai R., Li Y., Wang Y., Chen X., Shu Z., Zhou L., Ding Y., Tang X., Zhao X. Trends in TREC values according to age and gender in Chinese children and their clinical applications. Eur. J. Pediatr., 2022, Vol. 181, no. 2, pp. 529-538.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
