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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">Russian Journal of Infection and Immunity</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Infection and Immunity</journal-title><trans-title-group xml:lang="ru"><trans-title>Инфекция и иммунитет</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-7619</issn><issn publication-format="electronic">2313-7398</issn><publisher><publisher-name xml:lang="en">SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1653</article-id><article-id pub-id-type="doi">10.15789/2220-7619-GCC-1653</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">Genotyping clinical cytomegalovirus isolates in solid-organs-transplant recipients</article-title><trans-title-group xml:lang="ru"><trans-title>Генотипирование клинических изолятов цитомегаловируса, выделенных у реципиентов солидных органов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9838-1133</contrib-id><name-alternatives><name xml:lang="en"><surname>Vankova</surname><given-names>O. E.</given-names></name><name xml:lang="ru"><surname>Ванькова</surname><given-names>О. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Olga E. Vankova - Senior Researcher, Laboratory of Metagenomics and Molecular Indication of Pathogens, Blokhina Scientific Research Institute of Epidemiology and Microbiology.</p><p>603950, Nizhny Novgorod, Malaya Yamskaya str., 71.</p><p>Phone: +7 920 022-63-80.</p></bio><bio xml:lang="ru"><p>Ванькова Ольга Евгеньевна - старший научный сотрудник лаборатории метагеномики и молекулярной индикации патогенов.</p><p>603950, Нижний Новгород, ул. Малая Ямская, 71.</p><p>Тел.: 8 920 022-63-80.</p></bio><email>voe0@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4582-5623</contrib-id><name-alternatives><name xml:lang="en"><surname>Brusnigina</surname><given-names>N. F.</given-names></name><name xml:lang="ru"><surname>Бруснигина</surname><given-names>Н. Ф.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Medicine), Head of the Laboratory of Metagenomics and Molecular Indication of Pathogens, Blokhina Scientific Research Institute of Epidemiology and Microbiology.</p><p>603950, Nizhny Novgorod, Malaya Yamskaya str., 71.</p></bio><bio xml:lang="ru"><p>Кандидат медицинских наук, заведующая лабораторией метагеномики и молекулярной индикации патогенов.</p><p>603950, Нижний Новгород, ул. Малая Ямская, 71.</p></bio><email>nfbrusnigina@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Blokhina Scientific Research Institute of Epidemiology and Microbiology</institution></aff><aff><institution xml:lang="ru">Нижегородский НИИ эпидемиологии и микробиологии им. академика И.Н. Блохиной Роспотребнадзора</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-03-12" publication-format="electronic"><day>12</day><month>03</month><year>2022</year></pub-date><volume>12</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>59</fpage><lpage>68</lpage><history><date date-type="received" iso-8601-date="2020-12-15"><day>15</day><month>12</month><year>2020</year></date><date date-type="accepted" iso-8601-date="2021-12-25"><day>25</day><month>12</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Vankova O.E., Brusnigina N.F.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Ванькова О.Е., Бруснигина Н.Ф.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Vankova O.E., Brusnigina N.F.</copyright-holder><copyright-holder xml:lang="ru">Ванькова О.Е., Бруснигина Н.Ф.</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://iimmun.ru/iimm/article/view/1653">https://iimmun.ru/iimm/article/view/1653</self-uri><abstract xml:lang="en"><p>Cytomegalovirus infection remains one of the leading problems in contemporary healthcare. It belongs to socially and economically significant infections with a high incidence both in children and adults, characterized by polymorphic clinical manifestations and a variety of routes and factors for infection transmission. CMV infection of blood and organ recipients is a serious problem. It should be noted that, despite the great medical and social significance, in the Russian Federation there is no system of CMV epidemiological surveillance and control as it was traditionally developed for other topical infections. The aim of this study is to search for optimal method of cytomegalovirus (CMV) genotyping and estimate genotypic diversity of CMV isolates in Russia for patients underwent solid organ transplantation. The research presents the data after examining blood samples, leukocytes, saliva, urine and lacrimal discharge collected from 160 patients at the Transplantation Department of the Privolzhsky District Medical Center of the FMBA, aged 22 to 64 years, after liver and kidney transplantation. Molecular biological and serological methods were used for testing. Genotyping was carried out by the NGS sequencing of CMV DNA fragments. A high prevalence of CMV was found in patients undergoing solid organ transplantation. For 41.8±3.8% patients, cytomegalovirus DNA was detected in saliva and urine samples, and for 18.1±3.04% of them — in blood samples. In 98.8±3.2% of patients, the diagnosis of Cytomegalovirus infection (CMVI) was confirmed serologically. Based on a summary of reported data, estimation of various methodological approaches for genotyping of clinical CMV isolates was carried out. As a result, a typing option based on genotype determining for two variable genes <italic>UL55 (gB)</italic> and <italic>UL73 (gN)</italic> was selected. The spectra and proportional distribution of gB and gN CMV genotypes circulating among adults were determined. It was found that genotype prevalence in the group of patients who underwent solid organ transplantation was as follows: gB2, gN4c, gN4a, gN1. In some cases, a mixed infection was found due to the association of two and three CMV genotypes. The performed phylogenetic analysis of <italic>UL55</italic> and <italic>UL73</italic> gene nucleotide sequences indicates the genetic heterogeneity found for Russia-wide CMV isolates from in adult patients in the risk group.</p></abstract><trans-abstract xml:lang="ru"><p>Цитомегаловирусная инфекция (ЦМВИ) остается одной из главных проблем современного здравоохранения. Она относится к категории социально и экономически значимых инфекций, поражает как детей, так и взрослых, характеризуется полиморфизмом клинических проявлений и многообразием путей и факторов передачи. Серьезной проблемой является заражение цитомегаловирусом (ЦМВ) реципиентов крови и органов. Следует отметить, что несмотря на большую медицинскую и социальную значимость инфекции система эпидемиологического надзора и контроля за ЦМВИ в том виде, в котором она существует применительно к другим актуальным инфекциям, в РФ отсутствует. Цель исследования — провести поиск оптимальных вариантов генотипирования цитомегаловирусов и оценку генотипового разнообразия российских изолятов ЦМВ, выделенных у пациентов, перенесших трансплантацию солидных органов. В статье представлены результаты исследования образцов крови, лейкоцитарной массы, слюны, мочи и слезного отделяемого, взятых у 160 пациентов отделения трансплантологии Приволжского окружного медицинского центра ФМБА в возрасте от 22 до 64 лет, перенесших трансплантацию печени и почек. Для тестирования образцов применялись молекулярно-биологические и серологические методы. Генотипирование проводили путем NGS-секвенирования фрагментов ДНК ЦМВ. Установлена высокая частота выявления ДНК ЦМВ у пациентов, перенесших трансплантацию солидных органов. У 41,8±3,8% пациентов была обнаружена ДНК цитомегаловируса в образцах слюны и мочи, а у 18,1±3,04% из них — в образцах крови. У 98,8±3,2% пациентов диагноз «Цитомегаловирусная инфекция» был подтвержден серологически. По результатам анализа литературы проведена оценка различных методических подходов к генотипированию клинических изолятов ЦМВ. В результате был подобран и апробирован на клинических образцах вариант типирования, основанный на определении генотипов по двум вариабельным генам — <italic>UL55 (gB)</italic>, <italic>UL73 (gN)</italic>. Определены спектры и долевое распределение gB- и gN-генотипов ЦМВ, циркулирующих среди взрослых. Установлено, что в группе пациентов, перенесших трансплантацию солидных органов, превалируют генотипы gB2, gN4c, gN4a и gN1. В некоторых случаях обнаружена смешанная инфекция, обусловленная ассоциацией двух и трех генотипов ЦМВ. Проведенный филогенетический анализ нуклеотидных последовательностей генов <italic>UL55</italic> и <italic>UL73</italic> свидетельствует о генетической гетерогенности российских изолятов ЦМВ, выделенных у взрослых пациентов группы риска.</p></trans-abstract><kwd-group xml:lang="en"><kwd>cytomegalovirus</kwd><kwd>cytomegalovirus infection</kwd><kwd>solid organ transplantation</kwd><kwd>genotyping</kwd><kwd>prevalence</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>цитомегаловирус</kwd><kwd>цитомегаловирусная инфекция</kwd><kwd>трансплантация солидных органов</kwd><kwd>генотипирование</kwd><kwd>частота встречаемости</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1.	Barbi M., Binda S., Caroppo S., Calvario A., Germinario C., Bozzi A., Tanzi M.L., Veronesi L., Mura I., Piana A., Solinas G., Pugni L., Evilaqua G., Mosca F. 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