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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">periodontology</journal-id><journal-title-group><journal-title xml:lang="ru">Пародонтология</journal-title><trans-title-group xml:lang="en"><trans-title>Parodontologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1683-3759</issn><issn pub-type="epub">1726-7269</issn><publisher><publisher-name>Russian Periodontal Association (RPA)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33925/1683-3759-2024-887</article-id><article-id custom-type="elpub" pub-id-type="custom">periodontology-887</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>ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH</subject></subj-group></article-categories><title-group><article-title>Мониторинг бактериально-вирусных ассоциаций полости рта как маркера резистентности организма</article-title><trans-title-group xml:lang="en"><trans-title>Monitoring oral microbiota-virus associations as biomarkers of immune resistance</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9405-0142</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самоукина</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Samoukina</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Самоукина Анна Михайловна, кандидат медицинских наук, доцент, заведующая кафедрой гигиены и экологии.</p><p>Тверь</p></bio><bio xml:lang="en"><p>Anna M. Samoukina - MD, PhD, Head of the Department of Hygiene and Ecology.</p><p>Tver</p></bio><email xlink:type="simple">anna_samoukina@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/0000-0001-6549-0010</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Червинец</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Chervinets</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Червинец Вячеслав Михайлович - доктор медицинский наук, профессор кафедры микробиологии и вирусологии с курсом иммунологии.</p><p>Тверь</p></bio><bio xml:lang="en"><p>Vyacheslav M. Chervinets - MD, PhD, DSc, Professor, Department of Microbiology and Virology with a Course of Immunology.</p><p>Tver</p></bio><email xlink:type="simple">chervinets@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Тверской государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tver State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>08</day><month>04</month><year>2024</year></pub-date><volume>29</volume><issue>1</issue><fpage>45</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Самоукина А.М., Червинец В.М., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Самоукина А.М., Червинец В.М.</copyright-holder><copyright-holder xml:lang="en">Samoukina A.M., Chervinets V.M.</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.parodont.ru/jour/article/view/887">https://www.parodont.ru/jour/article/view/887</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Бактериально-вирусные ассоциации полости рта представляют одну из интегральных систем организма, которая находится в тесном взаимодействии с индивидуальным уровнем резистентности. Это делает перспективным их дальнейшее изучение в аспекте биомаркера резистентности в рамках персонифицированной концепции оценки состояния здоровья с использованием различных лабораторно-диагностических подходов.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проведено комплексное клинико-лабораторное исследование с микробиологическим мониторингом 1290 бактериально-вирусных ассоциаций биотопов пищеварительного тракта у 417 обследуемых с различным уровнем здоровья в возрастном аспекте: практически здоровые дети и подростки I-II группы здоровья (n = 253), 456 бактериально-вирусных ассоциаций от 127 обследуемых; III группы здоровья (n = 229), 436 бактериально-вирусных ассоциаций от 225 обследуемых; недоношенные новорожденные с различным дефицитом массы тела (n = 271), 398 бактериально-вирусных ассоциаций от 55 обследуемых.</p></sec><sec><title>Результаты</title><p>Результаты. С возрастом происходит снижение количества индигенной, увеличение количества условно-патогенной микробиоты, в 9,7 % и 19,8 % случаев (р ≤ 0,05), увеличение в 5,8 раз количественных параметров вирусного компонента с преобладанием вирусов Эпштейна – Барр и герпеса 6 типа в полости рта у практически здоровых детей I, II группы здоровья. Бактериально-вирусные ассоциации полости рта у детей с III группой здоровья характеризуются преобладанием условно-патогенной микробиоты и наличием ДНК цитомегаловируса (38,1 %, р ≤ 0,05). Прогностическим критерием микроэкологического неблагополучия и снижения резистентности у недоношенных новорожденных при длительном выхаживании в стационаре являются представители бактериального компонента условно-патогенной микробиоты с преобладанием микроорганизмов рода Staphylococcus, частота выделения которых коррелировала со степенью выраженности дефицита массы тела, 19 % и 4 % (р ≤ 0,05) в группе с экстремально низкой и низкой массой тела, соответственно.</p></sec><sec><title>Заключение</title><p>Заключение. Оценка уровня резистентности детей различных возрастных групп, в норме и при патологических состояниях, посредством определения бактериально-вирусных ассоциаций полости рта может рекомендоваться для использования в амбулаторно-поликлиническом звене при проведении комплексной оценки состояния здоровья детей и подростков и назначением персонифицированных коррекционных мероприятий в соответствии с группой риска.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. The oral microbiota, including its interactions with viruses, plays a crucial role in an individual's immune system. Investigating these microbiota-virus associations as biomarkers for personalized health assessments through advanced laboratory testing is an emerging research field.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. This study conducted an extensive clinical laboratory examination of the oral microbiota-virus associations across various biotopes of the digestive tract in 417 participants across different health and age categories: namely, generally healthy children and adolescents in health groups I and II (n = 253, with 456 microbiota-virus associations from 127 individuals); health group III (n = 229, with 436 microbiota-virus associations from 225 individuals); and preterm infants classified by degree of low birth weight (n = 271, with 398 microbiota-virus associations from 55 individuals).</p></sec><sec><title>Relevance</title><p>Relevance. The oral microbiota, including its interactions with viruses, plays a crucial role in an individual's immune system. Investigating these microbiota-virus associations as biomarkers for personalized health assessments through advanced laboratory testing is an emerging research field.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. This study conducted an extensive clinical laboratory examination of the oral microbiota virus associations across various biotopes of the digestive tract in 417 participants across different health and age categories: namely, generally healthy children and adolescents in health groups I and II (n = 253, with 456 microbiotavirus associations from 127 individuals); health group III (n = 229, with 436 microbiota-virus associations from 225 individuals); and preterm infants classified by degree of low birth weight (n = 271, with 398 microbiota-virus associations from 55 individuals).</p></sec><sec><title>Results</title><p>Results. Our findings showed a decrease in indigenous microbiota by 9.7% and an increase in potentially pathogenic microbiota by 19.8% across age groups (p ≤ 0.05). There was also a 5.8-fold increase in the viral components, notably Epstein-Barr virus and HHV-6, in the oral cavities of generally healthy children in health groups I and II. In health group III children, there was a notable increase in opportunistic pathogens and the detection of cytomegalovirus DNA (38.1%, p ≤ 0.05). Furthermore, the predominance of Staphylococcus species in the opportunistic pathogenic microbiota, which correlates with low birth weight, was identified as a prognostic indicator of poor microecological conditions and decreased immune resistance in preterm infants undergoing prolonged hospital care, with detection rates of 19% in extremely low birth weight and 4% in low birth weight groups (p ≤ 0.05).</p></sec><sec><title>Conclusion</title><p>Conclusion. Evaluating immune resistance in children of various health statuses and age groups through the analysis of oral microbiota-virus associations is advisable for outpatient healthcare settings. This assessment can guide the provision of comprehensive physical exams for children and adolescents and the formulation of personalized treatment plans based on identified risk groups.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>бактериально-вирусные ассоциации</kwd><kwd>полость рта</kwd><kwd>вирус герпеса 6 типа</kwd><kwd>вирус Эпштейна – Барр</kwd><kwd>дети</kwd><kwd>уровень здоровья</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microbiota-virus associations</kwd><kwd>oral cavity</kwd><kwd>human herpesvirus 6</kwd><kwd>Epstein-Barr virus</kwd><kwd>children</kwd><kwd>health status</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">Бухарин ОВ, Перунова НБ. Роль микробиоты в регуляции гомеостаза организма человека при инфекции. Журнал микробиологии, эпидемиологии и иммунобиологии. 2020;97(5):458-467. doi: 10.36233/0372-9311-2020-97-5-8</mixed-citation><mixed-citation xml:lang="en">Bukharin OV, Perunova NB. The role of microbiota in the regulation of homeostasis in the human body during infection. Journal of microbiology, epidemiology and immunobiology. 2020;97(5):458-467. (In Russ.). doi: 10.36233/0372-9311-2020-97-5-8</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Gao L, Xu T, Huang G, Jiang S, Gu Y, Chen F. Oral microbiomes: more and more importance in oral cavity and whole body. Protein Cell. 2018;9(5):488-500. doi: 10.1007/s13238-018-0548-1</mixed-citation><mixed-citation xml:lang="en">Gao L, Xu T, Huang G, Jiang S, Gu Y, Chen F. Oral microbiomes: more and more importance in oral cavity and whole body. Protein Cell. 2018;9(5):488-500. doi: 10.1007/s13238-018-0548-1</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Olsen I, Yamazaki K. Can oral bacteria af fect the microbiome of the gut? J Oral Microbiol. 2019;11(1):1586422. doi: 10.1080/20002297.2019.1586422</mixed-citation><mixed-citation xml:lang="en">Olsen I, Yamazaki K. Can oral bacteria af fect the microbiome of the gut? J Oral Microbiol. 2019;11(1):1586422. doi:10.1080/20002297.2019.1586422</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Xiao J, Fiscella KA, Gill SR. Oral microbiome: possible harbinger for children's health. Int J Oral Sci. 2020;12(1):12. doi: 10.1038/s41368-020-0082-x</mixed-citation><mixed-citation xml:lang="en">Xiao J, Fiscella KA, Gill SR. Oral microbiome: possible harbinger for children's health. Int J Oral Sci. 2020;12(1):12. doi: 10.1038/s41368-020-0082-x</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Deo PN, Deshmukh R. Oral microbiome: Unveiling the fundamentals. J Oral Maxillofac Pathol. 2019;23(1):122-128. doi: 10.4103/jomfp.JOMFP_304_18</mixed-citation><mixed-citation xml:lang="en">Deo PN, Deshmukh R. Oral microbiome: Unveiling the fundamentals. J Oral Maxillofac Pathol. 2019;23(1):122-128. doi: 10.4103/jomfp.JOMFP_304_18</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Lee YH, Chung SW, Auh QS, et al. Progress in Oral Microbiome Related to Oral and Systemic Diseases: An Update. Diagnostics (Basel). 2021;11(7):1283. doi: 10.3390/diagnostics11071283</mixed-citation><mixed-citation xml:lang="en">Lee YH, Chung SW, Auh QS, et al. Progress in Oral Microbiome Related to Oral and Systemic Diseases: An Update. Diagnostics (Basel). 2021;11(7):1283. doi: 10.3390/diagnostics11071283</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Sultan AS, Kong EF, Rizk AM, Jabra-Rizk MA. The oral microbiome: A Lesson in coexistence. PLoS Pathog. 2018;14(1):e1006719. doi: 10.1371/journal.ppat.1006719</mixed-citation><mixed-citation xml:lang="en">Sultan AS, Kong EF, Rizk AM, Jabra-Rizk MA. The oral microbiome: A Lesson in coexistence. PLoS Pathog. 2018;14(1):e1006719. doi: 10.1371/journal.ppat.1006719</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Чеснокова МГ, Чесноков СА, Миронов АЮ. Микобиота зубной бляшки у детей с зубочелюстными аномалиями при ортодонтическом лечении. Клиническая лабораторная диагностика. 2023;68(4):237-242. doi: 10.51620/0869-2084-2023-68-4-237-242</mixed-citation><mixed-citation xml:lang="en">Chesnokova MG, Chesnokov SA, Mironov AY. Microbiota of dental plaque in children with dentofacial anomalies during orthodontic treatment. Klinicheskaia laboratornaia diagnostika. 2023;68(4):237-242 (In Russ.). doi: 10.51620/0869-2084-2023-68-4-237-242</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Verma D, Garg PK, Dubey AK. Insights into the human oral microbiome. Arch Microbiol. 2018;200(4):525-540. doi:10.1007/s00203-018-1505-3</mixed-citation><mixed-citation xml:lang="en">Verma D, Garg PK, Dubey AK. Insights into the human oral microbiome. Arch Microbiol. 2018;200(4):525-540. doi: 10.1007/s00203-018-1505-3</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Wade WG. Resilience of the oral microbiome. Periodontol 2000. 2021;86(1):113-122. doi:10.1111/prd.12365</mixed-citation><mixed-citation xml:lang="en">Wade WG. Resilience of the oral microbiome. Periodontol 2000. 2021;86(1):113-122. doi: 10.1111/prd.12365</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Балмасова ИП, Царев ВН, Гветадзе РШ, Мустафаев МШ, Царева ТВ, Малова ЕС, и др. Виром полости рта: начало пути (обзор литературы). Клиническая стоматология. 2023;26(3):115-124. doi: 10.37988/1811-153X_2023_3_115</mixed-citation><mixed-citation xml:lang="en">Balmasova IP, Tsarev VN, Gvetadze RS, Mustafaev MS, Tsareva TV, Malova ES., et al. Oral virome: the beginning of the path (review). Clinical Dentistry (Russia). 202326(3):115-124 (In Russ.). doi: 10.37988/1811-153X_2023_3_115</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Самоукина АМ, Алексеева ЮА, Страхова СС, Страхов МА. Особенности микробиоты недоношенных новорожденных с дефицитом массы тела. Экспериментальная и клиническая гастроэнтерология. 2022;(4):78-86. doi: 10.31146/1682-8658-ecg-200-4-78-86</mixed-citation><mixed-citation xml:lang="en">Samoukina AM, Alekseeva YuA, Strakhova SS, Strakhov MA. Features of microbiota in underweight premature infants. Experimental and Clinical Gastroenterology. 2022;(4):78-86 (In Russ.). doi: 10.31146/1682-8658-ecg-200-4-78-86</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Thakkar P, Banks JM, Rahat R, Brandini DA, Naqvi AR. Viruses of the oral cavity: Prevalence, pathobiology and association with oral diseases. Rev Med Virol. 2022;32(4):e2311. doi: 10.1002/rmv.2311</mixed-citation><mixed-citation xml:lang="en">Thakkar P, Banks JM, Rahat R, Brandini DA, Naqvi AR. Viruses of the oral cavity: Prevalence, pathobiology and association with oral diseases. Rev Med Virol. 2022;32(4):e2311. doi: 10.1002/rmv.2311</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Nourbakhsh N, Sadri L, Moghim S, Mohammadi S. Comparative real-time PCR quantification of cytomegalovirus in severe early childhood caries and caries-free children. Eur Arch Paediatr Dent. 2022;23(5):797-801. doi: 10.1007/s40368-022-00711-z</mixed-citation><mixed-citation xml:lang="en">Nourbakhsh N, Sadri L, Moghim S, Mohammadi S. Comparative real-time PCR quantification of cytomegalovirus in severe early childhood caries and caries-free children. Eur Arch Paediatr Dent. 2022;23(5):797-801. doi: 10.1007/s40368-022-00711-z</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Joseph S, Curtis MA. Microbial transitions from health to disease. Periodontol 2000. 2021;86(1):201-209. doi: 10.1111/prd.12377</mixed-citation><mixed-citation xml:lang="en">Joseph S, Curtis MA. Microbial transitions from health to disease. Periodontol 2000. 2021;86(1):201-209. doi: 10.1111/prd.12377</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Kapila YL. Oral health's inextricable connection to systemic health: Special populations bring to bear multimodal relationships and factors connecting periodontal disease to systemic diseases and conditions. Periodontol 2000. 2021;87(1):11-16. doi: 10.1111/prd.12398</mixed-citation><mixed-citation xml:lang="en">Kapila YL. Oral health's inextricable connection to systemic health: Special populations bring to bear multimodal relationships and factors connecting periodontal disease to systemic diseases and conditions. Periodontol 2000. 2021;87(1):11-16. doi: 10.1111/prd.12398</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Sampaio-Maia B, Caldas IM, Pereira ML, PérezMongiovi D, Araujo R. The Oral Microbiome in Health and Its Implication in Oral and Systemic Diseases. Adv Appl Microbiol. 2016;97:171-210. doi: 10.1016/bs.aambs.2016.08.002</mixed-citation><mixed-citation xml:lang="en">Sampaio-Maia B, Caldas IM, Pereira ML, PérezMongiovi D, Araujo R. The Oral Microbiome in Health and Its Implication in Oral and Systemic Diseases. Adv Appl Microbiol. 2016;97:171-210. doi: 10.1016/bs.aambs.2016.08.002</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Willis JR, Gabaldón T. The Human Oral Microbiome in Health and Disease: From Sequences to Ecosystems. Microorganisms. 2020;8(2):308. doi: 10.3390/microorganisms8020308</mixed-citation><mixed-citation xml:lang="en">Willis JR, Gabaldón T. The Human Oral Microbiome in Health and Disease: From Sequences to Ecosystems. Microorganisms. 2020;8(2):308. doi: 10.3390/microorganisms8020308</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Петрова ОА, Червинец ВМ, Червинец ЮВ, Михайлова ЕС, Григорьянц ЭО, Леонтьева АВ, и др. Формирование кишечной микробиоты недоношенных новорожденных детей, получавших и не получавших курс антибиотиков и пробиотиков. Клиническая лабораторная диагностика. 2023;68(6):365-370 doi: 10.51620/0869-2084-2023-68-6-365-370</mixed-citation><mixed-citation xml:lang="en">Petrova OA, Chervinets VM, Chervinets YuV, Mikhailova ES, Grigoryants EO, Leontieva AV, et al. Formation of the intestinal microbiota of premature newborns who received and did not receive a course of antibiotics and probiotics. Klinicheskaia laboratornaia diagnostika. 2023;68(6):365-370 (In Russ.). doi: 10.51620/0869-2084-2023-68-6-365-370</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Sedghi L, DiMassa V, Harrington A, Lynch SV, Kapila YL. The oral microbiome: Role of key organisms and complex networks in oral health and disease. Periodontol 2000. 2021;87(1):107-131. doi: 10.1111/prd.12393</mixed-citation><mixed-citation xml:lang="en">Sedghi L, DiMassa V, Harrington A, Lynch SV, Kapila YL. The oral microbiome: Role of key organisms and complex networks in oral health and disease. Periodontol 2000. 2021;87(1):107-131. doi:10.1111/prd.12393</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Milewska A, Ner-Kluza J, Dabrowska A, Bodzon-Kulakowska A, Pyrc K, Suder P. Mass spectrometry in virological sciences. Mass Spectrom Rev. 2020;39(5-6):499-522. doi: 10.1002/mas.21617</mixed-citation><mixed-citation xml:lang="en">Milewska A, Ner-Kluza J, Dabrowska A, Bodzon-Kulakowska A, Pyrc K, Suder P. Mass spectrometry in virological sciences. Mass Spectrom Rev. 2020;39(5-6):499-522. doi: 10.1002/mas.21617</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Wörner TP, Shamorkina TM, Snijder J, Heck AJR. Mass Spectrometry-Based Structural Virology. Anal Chem. 2021;93(1):620-640. doi: 10.1021/acs.analchem.0c04339</mixed-citation><mixed-citation xml:lang="en">Wörner TP, Shamorkina TM, Snijder J, Heck AJR. Mass Spectrometry-Based Structural Virology. Anal Chem. 2021;93(1):620-640. doi: 10.1021/acs.analchem.0c04339</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Давыдов БН, Доменюк ДА, Дмитриенко СВ, Кондратьева ТА, Арутюнян ЮС. Оптимизация диагностики заболеваний пародонта у детей с дисплазией соединительной ткани по результатам рентгеноморфометрических и денситометрических исследований. Пародонтология. 2020;25(4):266-275. doi: 10.33925/1683-3759-2020-25-4-266-275</mixed-citation><mixed-citation xml:lang="en">Davydov BN, Domenyuk DA, Dmitrienko SV, Kondratyeva TA, Harutyunyan YuS. Improving diagnostics of periodontal diseases in children with connective tissue dysplasia based on X-ray morphometric and densitometric data. Parodontologiya. 2020;25(4):266-275. (In Russ.) doi: 10.33925/1683-3759-2020-25-4-266-275</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>
