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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">veterinary</journal-id><journal-title-group><journal-title xml:lang="ru">Ветеринария сегодня</journal-title><trans-title-group xml:lang="en"><trans-title>Veterinary Science Today</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2304-196X</issn><issn pub-type="epub">2658-6959</issn><publisher><publisher-name>"Veinard"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29326/2304-196X-2024-13-3-223-233</article-id><article-id custom-type="elpub" pub-id-type="custom">veterinary-843</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 | БОЛЕЗНИ СВИНЕЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES | PORCINE DISEASES</subject></subj-group></article-categories><title-group><article-title>Разработка и валидация высокочувствительного  метода мультиплексной ОТ-ПЦР-РВ для обнаружения генома  вируса классической чумы свиней</article-title><trans-title-group xml:lang="en"><trans-title>Development and validation of highly sensitive multiplex real-time  RT-PCR assay for detection of classical swine fever virus genome</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-0801-2394</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Садчикова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sadchikova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Садчикова Анастасия Сергеевна - аспирант, ветеринарный врач референтной лаборатории по африканской чуме свиней мкр. Юрьевец, г. Владимир, 600901</p></bio><bio xml:lang="en"><p>Anastasiya S. Sadchikova - Postgraduate Student, Veterinarian, Reference Laboratory for African Swine Fever</p><p>Yur’evets, Vladimir 600901</p></bio><email xlink:type="simple">sadchikova@arriah.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/0000-0002-5438-8026</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иголкин</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Igolkin</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иголкин Алексей Сергеевич -  канд. вет. наук, заведующий референтной лабораторией по африканской чуме свиней </p><p>мкр. Юрьевец, г. Владимир, 600901</p></bio><bio xml:lang="en"><p>Alexey  S.  Igolkin - Cand. Sci. (Veterinary Medicine), Head of Reference Laboratory for African Swine Fever</p><p>Yur’evets, Vladimir 600901</p></bio><email xlink:type="simple">igolkin_as@arriah.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/0000-0003-3604-7161</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернышев</surname><given-names>Р. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyshev</surname><given-names>R. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чернышев Роман Сергеевич - аспирант, ветеринарный врач референтной лаборатории по  африканской чуме свиней </p><p>мкр. Юрьевец, г. Владимир, 600901</p></bio><bio xml:lang="en"><p>Roman  S.  Chernyshev - Postgraduate Student, Veterinarian, Reference Laboratory for African Swine Fever</p><p>Yur’evets, Vladimir 600901</p></bio><email xlink:type="simple">chernishev_rs@arriah.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/0000-0002-1466-7602</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Козлов Антон Александрович - канд. биол. наук, научный сотрудник референтной лаборатории вирусных болезней </p><p>мкр. Юрьевец, г. Владимир, 600901</p></bio><bio xml:lang="en"><p>Anton A. Kozlov - Cand. Sci. (Biology), Researcher, Reference  Laboratory for Avian Viral Diseases</p><p>Yur’evets, Vladimir 600901</p></bio><email xlink:type="simple">kozlov_aa@arriah.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/0000-0003-4692-1297</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колбин</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolbin</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Колбин Иван Сергеевич - ветеринарный врач референтной лаборатории по африканской чуме свиней  </p><p>мкр. Юрьевец, г. Владимир, 600901</p></bio><bio xml:lang="en"><p>Ivan S. Kolbin - Veterinarian, Reference Laboratory for African Swine Fever</p><p>Yur’evets, Vladimir 600901</p></bio><email xlink:type="simple">kolbin@arriah.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/0000-0002-1659-3256</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Спрыгин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sprygin</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Спрыгин Александр Владимирович -д-р биол. наук, старший научный сотрудник референтной лаборатории болезней крупного рогатого скота, заведующий лабораторией молекулярных и генетических исследований </p><p>мкр. Юрьевец, г. Владимир, 600901</p></bio><bio xml:lang="en"><p>Alexander  V.  Sprygin - Dr. Sci. (Biology), Senior Researcher, Reference Laboratory for Bovine Diseases, Head of  Molecular and  Genetic Research Laboratory</p><p>Yur’evets, Vladimir 600901</p></bio><email xlink:type="simple">sprygin@arriah.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/0000-0002-4057-2367</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бирюченков</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Biryuchenkov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бирюченков Дмитрий Анатольевич - канд. вет. наук, заведующий лабораторией профилактики болезней свиней </p><p>мкр. Юрьевец, г. Владимир, 600901</p><p> </p></bio><bio xml:lang="en"><p>Dmitriy А. Biryuchenkov - Cand. Sci. (Veterinary Medicine), Head of Laboratory for Porcine Prevention</p><p>Yur’evets, Vladimir 600901</p></bio><email xlink:type="simple">biruchenkov@arriah.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/0000-0001-5982-3675</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чвала</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chvala</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чвала Илья Александрович - канд. вет. наук, заместитель директора по НИР </p><p>мкр. Юрьевец, г. Владимир, 600901</p><p> </p></bio><bio xml:lang="en"><p>Ilya A. Chvala - Cand. Sci. (Veterinary Medicine), Deputy Director for Research</p><p>Yur’evets, Vladimir 600901</p></bio><email xlink:type="simple">chvala@arriah.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/0000-0002-5982-8393</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мазлум</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mazloum</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мазлум Али - канд. биол. наук</p><p>г. Батон-Руж, LA 70803</p></bio><bio xml:lang="en"><p>Ali Mazloum - Cand. Sci. (Biology)</p><p>Baton Rouge, LA 70803</p></bio><email xlink:type="simple">ali.mazloum6@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Федеральный центр охраны здоровья животных» (ФГБУ «ВНИИЗЖ»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Centre for Animal Health</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Университет штата Луизиана</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>Louisiana State University</institution><country>United States</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>16</day><month>09</month><year>2024</year></pub-date><volume>13</volume><issue>3</issue><fpage>223</fpage><lpage>233</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Садчикова А.С., Иголкин А.С., Чернышев Р.С., Козлов А.А., Колбин И.С., Спрыгин А.В., Бирюченков Д.А., Чвала И.А., Мазлум А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Садчикова А.С., Иголкин А.С., Чернышев Р.С., Козлов А.А., Колбин И.С., Спрыгин А.В., Бирюченков Д.А., Чвала И.А., Мазлум А.</copyright-holder><copyright-holder xml:lang="en">Sadchikova A.S., Igolkin A.S., Chernyshev R.S., Kozlov A.A., Kolbin I.S., Sprygin A.V., Biryuchenkov D.A., Chvala I.A., Mazloum 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://veterinary.arriah.ru/jour/article/view/843">https://veterinary.arriah.ru/jour/article/view/843</self-uri><abstract><p>Проблема классической чумы свиней в свиноводстве по-прежнему остается актуальной во всем в мире, несмотря на принимаемые меры. Последний случай данного заболевания в Российской Федерации регистрировали в 2020 г., однако сохраняется угроза эмерджентного возникновения болезни. Для предотвращения заноса вируса классической чумы свиней и быстрой ликвидации потенциально возможных вспышек необходимо проведение комплекса противоэпизоотических мероприятий, преимущественно включающих вакцинопрофилактику и ежегодный диагностический мониторинг на основе молекулярно-генетических и серологических исследований. В связи с этим разработан метод полимеразной цепной реакции с обратной транскрипцией в режиме реального времени с использованием внутреннего контрольного образца. Праймеры в модификации LockedNucleic Acid (конформационно блокированных нуклеозидов), обеспечивающие более высокий уровень аффинности к ДНК-матрице и физико-химической стабильности, и FAM-меченый TaqMan-зонд были подобраны к 5’-нетранслируемой области генома. Также определены валидационные показатели: правильность, сходимость, воспроизводимость, специфичность и чувствительность. С целью сравнительного анализа чувствительности параллельно тестировались зашифрованными тест-системами № х1, х2 образцы смывов, органов и тканей, полученных от свиней, экспериментально зараженных эпизоотическим штаммом вируса классической чумы свиней (селезенка, почка, печень, кровь, лимфатические узлы, ректальные и оральные мазки), корма, контаминированного животными, и вируссодержащего материала с известными титрами. Показаны 100%-я диагностическая чувствительность и предел детекции в 0,23 lg ККИД50/см3 разработанного метода. При этом показатели тест-систем № х1 и х2 были ниже, что может приводить к ложноотрицательным результатам полимеразной цепной реакции с обратной транскрипцией в режиме реального времени (ОТ-ПЦР-РВ) и влиять на недостоверную постановку диагноза. Таким образом, представленный метод может использоваться при проведении широкомасштабного мониторинга классической чумы свиней в Российской Федерации.</p></abstract><trans-abstract xml:lang="en"><p>Classical swine fever (CSF) remains a challenge for pig farming industrial lover the world despite the measures taken. The last CS  case in the Russian Federation was reported in 2020, however, the threat of the disease emerging still persists. A set of anti-epidemic measures including mainly preventive vaccination and annual diagnostic monitoring using molecular-genetic and serological methods is required for CSF virus introduction prevention and rapid eradication of potential disease out breaks. Therefore, areal-time reverse transcription-polymerase chain reaction using an internal control sample has been developed. Therefore, areal time reverse transcription-polymerase chain reaction using an internal control sample has been developed. Modified primers (locked nucleic acids containing conformationally blocked nucleosides) providing a higher affinity to the DNA matrix and physico-chemical stability and a FAM-labeled TaqMan probe were selected for 5’-untranslatedregion of the genome. The following validation parameters were defined: accuracy, repeatability, reproducibility, specificity and sensitivity. For comparative analysis of the developed as say sensitivity, swabs, samples of organs and tissues collected from pigs experimentally infected with an epizootic strain of the classical swine fever virus (spleen, kidney, liver, blood, lymph nodes, rectal and oral smears), animal-contaminated feed and virus-containing material with known virus titres were also tested in parallel with coded test systems No. x1 andx2. The developed assay was shown to have 100% diagnostic sensitivity and detection limit of 0,23 lgCCID50/cm3. Therewith, there sults of analysis of test systems No. x1, x2 based on above parameters were lower that could give rise to false positive real-time RT-PCR results and incorrect diagnosis. Thus, described assay can be used for extensive monitoring of classical swine fever in the Russian Federation</p></trans-abstract><kwd-group xml:lang="ru"><kwd>классическая чума свиней</kwd><kwd>ОТ-ПЦР-РВ</kwd><kwd>внутренний контрольный образец</kwd><kwd>диагностическая чувствительность</kwd><kwd>аналитическая чувствительность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>classical swine fever</kwd><kwd>real-time RT-PCR</kwd><kwd>internal control sample</kwd><kwd>diagnostic sensitivity</kwd><kwd>analytical sensitivity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена за счет средств ФГБУ «ВНИИЗЖ» в рамках тематики научно-исследовательских работ «Ветеринарное благополучие».  Авторы выражают глубокую благодарность заведующему лабораторией профилактики бактериальных болезней канд. вет. наук В. А. Евграфовой и ведущему биологу референтной лаборатории болезней крупного рогатого скота А. О. Кротовой за консультативную помощь</funding-statement><funding-statement xml:lang="en">The study was funded by the FGBI “ARRIAH” as a part of research activities “Veterinary Welfare”. The authors express their gratitude  to V. A. Evgrafova, Cand. Sci. (Veterinary Medicine), Head of Laboratory for Bacterial Disease Prevention, and A. O. Krotova, Leading Biologist, Reference Laboratory  for Cattle Diseases, for advisory assistance</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">MalikY. S., Bhat S., KumarO. R. V., Yadav A. K., Sircar S., Ansari M. I., et al. 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