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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-2020-3-34-220-227</article-id><article-id custom-type="elpub" pub-id-type="custom">veterinary-505</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>БИОТЕХНОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOTECHNOLOGY</subject></subj-group></article-categories><title-group><article-title>Опосредованное определение концентрации 146S компонента вируса ящура в неинактивированной суспензии при сравнении графиков второй производной для кривых ОТ-ПЦР-РВ</article-title><trans-title-group xml:lang="en"><trans-title>Indirect determination of FMDV 146S component concentration in non-inactivated suspension by comparison of graphs of the second derivative for real-time RT-PCR curves</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4682-6559</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Доронин</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Doronin</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доронин Максим Игоревич, кандидат биологических наук, старший научный сотрудник лаборатории профилактики ящура</p><p>600901, г. Владимир, мкр. Юрьевец</p></bio><bio xml:lang="en"><p>Maksim I. Doronin, Candidate of Science (Biology), Senior Researcher, Laboratory for FMD Prevention</p><p>600901, Vladimir, Yur’evets</p></bio><email xlink:type="simple">doronin@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/0000-0003-1718-1955</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михалишин</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhalishin</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михалишин Дмитрий Валерьевич, кандидат ветеринарных наук, заведующий лабораторией профилактики ящура</p><p>г. Владимир</p></bio><bio xml:lang="en"><p>Dmitry V. Mikhalishin, Candidate of Science (Veterinary Medicine), Head of Laboratory for FMD Prevention</p><p>Vladimir</p></bio><email xlink:type="simple">mihalishindv@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/0000-0002-9960-0887</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стариков</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Starikov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Стариков Вячеслав Алексеевич, кандидат ветеринарных наук, ведущий научный сотрудник лаборатории профилактики ящура</p><p>г. Владимир</p></bio><bio xml:lang="en"><p>Vyacheslav A. Starikov, Candidate of Science (Veterinary Medicine), Leading Researcher, Laboratory for FMD Prevention</p><p>Vladimir</p></bio><email xlink:type="simple">starikov@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/0000-0002-5983-7062</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лозовой</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lozovoy</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лозовой Дмитрий Анатольевич, доктор ветеринарных наук, доцент</p><p>г. Владимир</p></bio><bio xml:lang="en"><p>Dmitry A. Lozovoy, Doctor of Science (Veterinary Medicine), Associate Professor</p><p>Vladimir</p></bio><email xlink:type="simple">lozovoy@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/0000-0001-9880-9657</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Борисов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Borisov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Борисов Алексей Валерьевич, кандидат ветеринарных наук, ведущий научный сотрудник лаборатории профилактики ящура</p><p>г. Владимир</p></bio><bio xml:lang="en"><p>Alexey V. Borisov, Candidate of Science (Veterinary Medicine), Leading Researcher, Laboratory for FMD Prevention</p><p>Vladimir</p></bio><email xlink:type="simple">borisov_av@arriah.ru</email><xref ref-type="aff" rid="aff-1"/></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>FGBI “Federal Centre for Animal Health” (FGBI “ARRIAH”)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>16</day><month>09</month><year>2020</year></pub-date><volume>0</volume><issue>3</issue><fpage>220</fpage><lpage>227</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Доронин М.И., Михалишин Д.В., Стариков В.А., Лозовой Д.А., Борисов А.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Доронин М.И., Михалишин Д.В., Стариков В.А., Лозовой Д.А., Борисов А.В.</copyright-holder><copyright-holder xml:lang="en">Doronin M.I., Mikhalishin D.V., Starikov V.A., Lozovoy D.A., Borisov A.V.</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/505">https://veterinary.arriah.ru/jour/article/view/505</self-uri><abstract><p>При репродукции в биологических системах вирус ящура формирует 4 варианта компонентов, три из которых не включают в себя РНК вируса. В процессе промышленного производства противоящурных вакцин особое внимание уделяют количеству цельных вирионов, которые обладают важнейшими биологическими свойствами вируса ящура и являются основными компонентами, определяющими иммуногенность вакцинных препаратов. Сырье для вакцин на различных этапах технологического процесса исследуют с целью определения концентрации 146S компонента вируса ящура. Традиционным методом определения является количественный вариант реакции связывания комплемента. Для опосредованного определения концентрации 146S компонента вируса ящура в вируссодержащей суспензии в последние годы стали использовать полимеразную цепную реакцию с обратной транскрипцией в режиме реального времени. В статье представлен новый подход к опосредованному определению концентрации 146S компонента вируса ящура в неинактивированной суспензии при сравнении максимальных экстремумов графиков второй производной кривых накопления сигнала флуоресценции относительно количества циклов реакции амплификации. Существование зависимости между концентрацией 146S компонента вируса ящура и максимальными экстремумами графиков второй производной кривой накопления флуоресцентного сигнала представлено в виде квадратичной функции С146S ВЯ = 0,0111(Сp)2 – 1,0157Cp + 20,446 с высокой достоверностью аппроксимации (R2 = 0,993). Предложенная модель позволяет количественно оценивать содержание 146S компонента в вируссодержащем сырье для вакцины. Представленный способ позволяет исследовать большое количество образцов неинактивированного сырья для противоящурной вакцины за 4–5 ч. Основным преимуществом предлагаемого способа является возможность определения концентрации 146S компонента вируса ящура в суспензии, содержащей высокое количество балластного белка (более 7,00 мг/см3) и количество полных вирусных частиц от 0,01 до 5,00 мкг/см3.</p></abstract><trans-abstract xml:lang="en"><p>During reproduction in biological systems, FMD virus forms four variants of components, three of which do not include RNA of the virus. In the process of industrial production of FMD vaccines, special attention is paid to the number of whole virions, which have the most important biological properties of FMD virus and are the main components that determine the immunogenicity of vaccine preparations. Raw materials for vaccines at various stages of the technological process are tested for concentration of FMDV 146S component. The traditional method of determination is quantitative complement fixation test. In recent years, real-time RT-PCR has been used for indirect determination of FMDV 146S component concentration in a virus-containing suspension. The article presents a new approach to indirect determination of FMDV 146S component concentration in a non-inactivated suspension by comparing the maximum extreme points of the graphs of the second derivative of the fluorescence signal accumulation curves and the number of amplification reaction cycles. The dependence between FMDV 146S component concentration and the maximum extreme points of the graphs of the second derivative of the fluorescence signal accumulation curve is presented in the form of a square function: C146S FMDV = 0.0111(Cp)2 – 1.0157Cp + 20.446 with a high accuracy of approximation (R2 = 0.993). The proposed model allows to quantitatively estimate the content of 146S component in virus-containing vaccine raw materials. The presented method allows studying a large number of samples of non-inactivated raw materials for FMD vaccine in 4–5 hours. The main advantage of the proposed method is the capacity to determine the concentration of FMDV 146S component in a suspension with a high level of ballast proteins (more than 7.00 mg/cm3) and complete viral particles (from 0.01 to 5.00 μg/cm3).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вирионы вируса ящура</kwd><kwd>ОТ-ПЦР-РВ</kwd><kwd>пороговый цикл амплификации</kwd><kwd>график второй производной кривой амплификации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>FMDV virions</kwd><kwd>real-time RT-PCR</kwd><kwd>amplification threshold cycle</kwd><kwd>graph of second derivative of amplification curve</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».</funding-statement><funding-statement xml:lang="en">The study was funded by the FGBI “ARRIAH” within the framework of “Veterinary Welfare” research work.</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">Lubroth J., Rodriguez L., Dekker A. 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