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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">nmp</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал им. Н.В. Склифосовского «Неотложная медицинская помощь»</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Sklifosovsky Journal "Emergency Medical Care"</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-9022</issn><issn pub-type="epub">2541-8017</issn><publisher><publisher-name>“N.V. Sklifosovsky Research Institute for Emergency Medicine”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.23934/2223-9022-2020-9-3-348-355</article-id><article-id custom-type="elpub" pub-id-type="custom">nmp-931</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>Ассоциация белков сурфактанта SP-A и SP-D с тяжестью внебольничной пневмонии</article-title><trans-title-group xml:lang="en"><trans-title>Association of SP-A and SP-D Surfactant Proteins with the Severity of CommunityAcquired Pneumonia</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8788-685X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Харламова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kharlamova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Харламова Ольга Сергеевна аспирант лаборатории неотложной терапии НИИ ТПМ, заведующая терапевтическим отделением ГБУЗ НСО ГКБ №25</p><p>630089, Новосибирск, ул. Бориса Богаткова, д. 175/1630075, Новосибирск, ул. Александра Невского, д. 1а </p></bio><bio xml:lang="en"><p>Olga S. Kharlamova postgraduate student of the Laboratory for Emergency Therapy, Research Institute of therapy and preventive medicine branch of the Federal Research Center Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences; head of the Therapeutic Department, Novosibirsk Region City Clinical Hospital No. 25</p><p>175/1 Borisa Bogatkova St., Novosibirsk 6300891a Alexandra Nevskogo St., Novosibirsk 630075 </p></bio><email xlink:type="simple">olga.kharlamova2016@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/0000-0003-4601-6203</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Николаев</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolayev</surname><given-names>K. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николаев Константин Юрьевич доктор медицинских наук, профессор, заведующий лабораторией неотложной терапии</p><p>630089, Новосибирск, ул. Бориса Богаткова, д. 175/1630090, Новосибирск, ул. Пирогова, д. 1 </p></bio><bio xml:lang="en"><p>Konstantin Yu. Nikolayev Doctor of Medical Sciences, Professor, Head of the Laboratory of Emergency Therapy</p><p>175/1 Borisa Bogatkova St., Novosibirsk 6300891 Pirogova St., Novosibirsk 630090 </p></bio><email xlink:type="simple">nikolaevky@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/0000-0002-4936-8362</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рагино</surname><given-names>Ю. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ragino</surname><given-names>Y. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рагино Юлия Игоревна доктор медицинских наук, профессор, член-корреспондент РАН, врио руководителя</p><p>630089, Новосибирск, ул. Бориса Богаткова, д. 175/1</p></bio><bio xml:lang="en"><p>Yuliya I. Ragino Doctor of Medical Sciences, Professor, Corresponding Member of the Russian Academy of Sciences, Acting Head</p><p>175/1 Borisa Bogatkova St., Novosibirsk 630089</p></bio><email xlink:type="simple">ragino@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9425-413X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воевода</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Voyevoda</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Воевода Михаил Иванович академик РАН, доктор медицинских наук, профессор, руководитель научного направления фундаментальных и клинических исследований</p><p>630089, Новосибирск, ул. Бориса Богаткова, д. 175/1</p></bio><bio xml:lang="en"><p>Mikhail I. Voyevoda Academician of the Russian Academy of Sciences, Doctor of Medical Sciences, Professor, Head of the Scientific Direction of Fundamental and Clinical Research</p><p>175/1 Borisa Bogatkova St., Novosibirsk 630089</p></bio><email xlink:type="simple">mvoevoda@ya.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">НИИ терапии и профилактической медицины — филиал ФГБНУ «Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук»; ГБУЗ Новосибирской области «Городская клиническая больница № 25»<country>Россия</country></aff><aff xml:lang="en">Research Institute of therapy and preventive medicine — branch of the Federal Research Center Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences; Novosibirsk Region City Clinical Hospital No. 25<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">НИИ терапии и профилактической медицины — филиал ФГБНУ «Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук»; Новосибирский государственный университет<country>Россия</country></aff><aff xml:lang="en">Research Institute of therapy and preventive medicine — branch of the Federal Research Center Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">НИИ терапии и профилактической медицины — филиал ФГБНУ «Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук»<country>Россия</country></aff><aff xml:lang="en">Research Institute of therapy and preventive medicine — branch of the Federal Research Center Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>21</day><month>10</month><year>2020</year></pub-date><volume>9</volume><issue>3</issue><fpage>348</fpage><lpage>355</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Харламова О.С., Николаев К.Ю., Рагино Ю.И., Воевода М.И., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Харламова О.С., Николаев К.Ю., Рагино Ю.И., Воевода М.И.</copyright-holder><copyright-holder xml:lang="en">Kharlamova O.S., Nikolayev K.Y., Ragino Y.I., Voyevoda M.I.</copyright-holder><license 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.jnmp.ru/jour/article/view/931">https://www.jnmp.ru/jour/article/view/931</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. В современной клинической практике существует необходимость исследований для поиска новых диагностических тестов с целью определения пациентов с самым высоким риском смерти от пневмонии. В патогенезе ответа на микробную инвазию легочной ткани одну из ключевых ролей играют сурфактантные белки SP-A и SP-D, которые участвуют в каскаде реакций как врожденного, так и приобретенного иммунитета, в связи с чем возможно рассматривать белки SP-A и SP-D в качестве маркеров тяжести внебольничной пневмонии (ВП).</p></sec><sec><title>Цель</title><p>Цель. Оценить ассоциации сурфактантных белков SP-A и SP-D в плазме крови с тяжестью ВП.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование включены 247 пациентов, госпитализированных в терапевтическое отделение. Группа пациентов с ВП (n=188) разделена на группы тяжелой (n=103) и нетяжелой (n=85) пневмонии. Группу сравнения (n=59) составили пациенты без острых и хронических заболеваний бронхов и легких. Средний возраст (лет, Ме, 25%-й; 75%-й процентили) пациентов составил 55 (47; 68), 55 (47; 70) и 61 (37; 63) год соответственно. Всем пациентам проведены клиническое, функционально-диагностическое и лабораторное исследования (включая определение содержания белков SP-A и SP-D методом иммуноферментного анализа).</p></sec><sec><title>Результаты</title><p>Результаты. В группе пациентов с тяжелыми пневмониями в отличие от данных группы нетяжелых пневмоний и группы сравнения получены более высокие уровни белков SP-A и SP-D. При корреляционном анализе выявлены нижеописанные статистически значимые связи: для белка SP-D — прямая связь с уровнем лейкоцитов (r=0,320, p&lt;0,0001), скоростью оседания эритроцитов (r=0,331, p&lt;0,0001), обратная связь с насыщением крови кислородом (r=-0,407, p&lt;0,0001), для белка SP-A прямая связь с температурой тела (r=0,355, p&lt;0,0001), скоростью оседания эритроцитов (r=0,369, p&lt;0,0001), содержанием в крови С-реактивного белка (r=0,446, p&lt;0,0001), SP-D (r=0,357, p&lt;0,0001), а также связь с продолжительностью клинических симптомов (r=0,528, p&lt;0,0001) и обратная связь с насыщением крови кислородом (r=-0,401, p&lt;0,0001). При проведении ROC-анализа для сурфактантного белка SP-А в отношении тяжелой пневмонии площадь под ROC-кривой составила 0,70, оптимальная чувствительность — 68%, специфичность — 69% при уровне SP-А в плазме крови, равном 42,9 нг/мл. При проведении ROC-анализа для сурфактантного белка SP-D в отношении тяжелой пневмонии площадь под ROC-кривой составила 0,64, оптимальная чувствительность 62%, а специфичность — 62% при содержании SP-D в плазме крови, равном 319,2 нг/мл.</p></sec><sec><title>Заключение</title><p>Заключение. По результатам настоящего исследования белки SP-A и SP-D ассоциированы с клиническими и лабораторными признаками, которые отражают тяжесть течения ВП. Таким образом, белки сурфактанта SP-A и SP-D являются новыми лабораторными маркерами тяжести ВП.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. In current clinical practice, there is a need for research to find new diagnostic tests for the purpose of determining the patients with the highest risk of death from pneumonia. Surfactant proteins SP-A and SP-D play a key role in the pathogenesis of the response to microbial invasion of lung tissue, which participate in a cascade of reactions of both innate and adaptive immunity, and therefore proteins SP-A and SP-D may be considered as markers of the severity of community-acquired pneumonia (CAP).</p></sec><sec><title>Aim of study</title><p>Aim of study. To evaluate the associations of surfactant proteins SP-A and SP-D in blood plasma with the severity of CAP.</p></sec><sec><title>Material and methods</title><p>Material and methods. The study included 247 patients admitted to the therapeutic department. The group of patients with CAP (n=188) was divided into groups of severe (n=103) and non-severe (n=85) pneumonia. The comparison group (n=59) consisted of patients without acute and chronic diseases of the bronchi and lungs. The mean age (years, Me, 25th; 75th percentile) of patients was 55 (47; 68), 55 (47; 70), and 61 (37; 63) years, respectively. All patients underwent clinical, functional, diagnostic and laboratory studies (including determination of the content of SP-A and SP-D proteins by enzyme immunoassay).</p></sec><sec><title>Results</title><p>Results. In the group of patients with severe pneumonia unlike mild pneumonia, and group of comparison higher levels of proteins SP-A and SP-D were observed. Correlation analysis described below revealed statistically significant connection: protein SP-D — direct relation with leukocyte levels (r=0.320, p&lt;0.0001), erythrocyte sedimentation rate (r=0.331, p&lt;0.0001), inverse relation with blood oxygen saturation (r=-0.407, p&lt;0.0001), for SP-A protein — direct relation with body temperature (r=0.355, p&lt;0.0001), erythrocyte sedimentation rate (r=0.369, p&lt;0.0001) in the blood C-reactive protein (r=0.446, p&lt;0.0001), SP-D (r=0.357, p&lt;0.0001), and also relation with the duration of clinical symptoms (r=0.528, p&lt;0.0001) and blood oxygen saturation (r=-0.401, p&lt;0.0001). When conducting ROCanalysis for the surfactant protein SP-A, the area under the ROC- curve was 0.70, the optimal sensitivity for severe pneumonia was 68%, the specificity was 69% at the SP-A level in blood plasma equal to 42.9 ng/ml. When performing ROC analysis for the surfactant protein SP-D, the area under the ROC curve was 0.64 for severe pneumonia, the optimal sensitivity was 62%, and the specificity was 62% at the SP-D content in blood plasma equal to 319.2 ng/ml.</p></sec><sec><title>Conclusion</title><p>Conclusion. According to the results of this study, the SP-A and SP-D proteins are associated with clinical and laboratory signs that reflect the severity of CAP. Thus, SP-A and SP-D are new laboratory markers of CAP severity.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сурфактант</kwd><kwd>сурфактантный белок А</kwd><kwd>сурфактантный белок D</kwd><kwd>биомаркер</kwd><kwd>внебольничная пневмония</kwd></kwd-group><kwd-group xml:lang="en"><kwd>surfactant</kwd><kwd>surfactant protein A</kwd><kwd>surfactant protein D</kwd><kwd>biomarker</kwd><kwd>community-acquired pneumonia</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Материал статьи является частью бюджетной темы НИИТПМ — филиал ИЦиГ СО РАН, работа выполнена по Государственному заданию в рамках бюджетной темы № АААА-А17117112850280- 2.  Работа выполнена на базе Государственного бюджетного учреждения здравоохранения Новосибирской области «Городская клиническая больница № 25», Новосибирск, Россия, в рамках государственного задания по интеграционному проекту (0324-2018-0040) «Разработка новых способов экспресс-диагностики заболеваний человека на основе детекции органоспецифических маркеров с помощью современных физических и физико-химических подходов»</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The material of the article is part of the budgetary topic of Research Institute of therapy and preventive medicine — branch of the Federal Research Center Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences. The work was carried out according to the State assignment within the framework of the budgetary topic No. AAAA-A17-117112850280-2.  The work was carried out on the basis of Novosibirsk Region City Clinical Hospital No. 25, Novosibirsk, Russian Fedration. The work was carried out within the framework of the state assignment for the integration project (0324-2018-0040) “Development of new methods for the rapid diagnosis of human diseases based on the detection of organ-specific markers using modern physical and physicochemical approaches”.</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">Global, regional, and national age-sex specific mortality for 264 causes of death, 1980–2016: a systematic analysis for the global burden of disease study 2016. Lancet. 2017;390:1151–1210. PMID: 28919116 https://doi.org/10.1016/S0140-6736(17)32152-9</mixed-citation><mixed-citation xml:lang="en">Global, regional, and national age-sex specific mortality for 264 causes of death, 1980–2016: a systematic analysis for the global burden of disease study 2016. Lancet. 2017;390:1151–1210. PMID: 28919116 https://doi.org/10.1016/S0140-6736(17)32152-9</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Bräuer L, Schicht M, Worlitzsch D, Bensel T, Sawers R, Paulsen F. Staphylococcus aureus and Pseudomonas aeruginosa Express and Secrete Human Surfactant Proteins. PLoS ONE. 2013;8(1):e53705. PMID: 23349731 https://doi.org/10.1371/journal.pone.0053705</mixed-citation><mixed-citation xml:lang="en">Bräuer L, Schicht M, Worlitzsch D, Bensel T, Sawers R, Paulsen F. Staphylococcus aureus and Pseudomonas aeruginosa Express and Secrete Human Surfactant Proteins. PLoS ONE. 2013;8(1):e53705. PMID: 23349731 https://doi.org/10.1371/journal.pone.0053705</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Инфекционная заболеваемость в Российской Федерации за январьдекабрь 2018 г. URL: https://rospotrebnadzor.ru/activities/statisticalmaterials/statictic_details.php?ELEMENT_ID=11277 [Дата обращения 31.08.2020.]</mixed-citation><mixed-citation xml:lang="en">Infektsionnaya zabolevaemost’ v Rossiyskoy Federatsii za yanvar’-dekabr’ 2018 g. Available at: https://rospotrebnadzor.ru/activities/statisticalmaterials/statictic_details.php?ELEMENT_ID=11277 [Accessed Aug 31, 2020] (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Li H-Y, Guo Q, Song W-D, Zhou Y-P, Li M, Chen X-K, et al. Modified IDSA/ATS minor criteria for severe community-acquired pneumonia best predicted mortality. Medicine (Baltimore). 2019;98(33):e16914. PMID: 26356705 https://doi.org/10.1097/md.0000000000016914</mixed-citation><mixed-citation xml:lang="en">Li H-Y, Guo Q, Song W-D, Zhou Y-P, Li M, Chen X-K, et al. Modified IDSA/ATS minor criteria for severe community-acquired pneumonia best predicted mortality. Medicine (Baltimore). 2019;98(33):e16914. PMID: 26356705 https://doi.org/10.1097/md.0000000000016914</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Schuetz P, Koller M, Christ-Crain M, Steyerberg E, Stolz D, Müller C, et al. Predicting mortality with pneumonia severity scores: importance of model recalibration to local settings. Epidemiol Infect. 2008;136(12):1628–1637. PMID: 18302806 https://doi.org/10.1017/s0950268808000435</mixed-citation><mixed-citation xml:lang="en">Schuetz P, Koller M, Christ-Crain M, Steyerberg E, Stolz D, Müller C, et al. Predicting mortality with pneumonia severity scores: importance of model recalibration to local settings. Epidemiol Infect. 2008;136(12):1628–1637. PMID: 18302806 https://doi.org/10.1017/s0950268808000435</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Hunter B, Wilbur L. How Accurately Do Pneumonia Severity Scores Predict Mortality in Patients With Community-Acquired Pneumonia. Ann Emerg Med. 2012;59(1):51–52. PMID: 21944899 https://doi.org/10.1016/j.annemergmed.2011.07.034</mixed-citation><mixed-citation xml:lang="en">Hunter B, Wilbur L. How Accurately Do Pneumonia Severity Scores Predict Mortality in Patients With Community-Acquired Pneumonia. Ann Emerg Med. 2012;59(1):51–52. PMID: 21944899 https://doi.org/10.1016/j.annemergmed.2011.07.034</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Чучалин А.Г., Синопальников А.И., Козлов Р.С., Тюрин И.Е., Рачина С.А. Практические рекомендации. Внебольничная пневмония у взрослых: диагностика, лечение, профилактика. Инфекционные болезни. Новости. Лечение. Обучение. 2013;(2):91–123.</mixed-citation><mixed-citation xml:lang="en">Chuchalin AG, Sinopal’nikov AI, Kozlov RS, Tyurin IE, Rachina SA. Community-Acquired Pneumonia in Adults: Practical Guidelines for Diagnostics, Treatment and Prevention. Infectious Diseases: News, Views, Education. 2013;(2):91–123. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Nandy D, Sharma N, Senapati S. Systematic Review and Meta-Analysis Confirms Significant Contribution of Surfactant Protein D in Chronic Obstructive Pulmonary Disease. Front Genet. 2019;10:339. PMID: 31057601 https://doi.org/10.3389/fgene.2019.00339 eCollection 2019.</mixed-citation><mixed-citation xml:lang="en">Nandy D, Sharma N, Senapati S. Systematic Review and Meta-Analysis Confirms Significant Contribution of Surfactant Protein D in Chronic Obstructive Pulmonary Disease. Front Genet. 2019;10:339. PMID: 31057601 https://doi.org/10.3389/fgene.2019.00339 eCollection 2019.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">El-Deek SE, Makhlouf HA, Saleem TH, Mandour MA, Mohamed NA. Surfactant protein D, soluble intercellular adhesion molecule-1 and high-sensitivity C-reactive protein as biomarkers of chronic obstructive pulmonary disease. Med Princ Pract. 2013;22(5):469–474. PMID: 23860258 https://doi.org/10.1159/000349934</mixed-citation><mixed-citation xml:lang="en">El-Deek SE, Makhlouf HA, Saleem TH, Mandour MA, Mohamed NA. Surfactant protein D, soluble intercellular adhesion molecule-1 and highsensitivity C-reactive protein as biomarkers of chronic obstructive pulmonary disease. Med Princ Pract. 2013;22(5):469–474. PMID: 23860258 https://doi.org/10.1159/000349934</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Liu Z, Chen S, Xu Y, Liu X, Xiong P, Fu Y. Surfactant protein A expression and distribution in human lung samples from smokers with or without chronic obstructive pulmonary disease in China. Medicine (Baltimore). 2020;99(7):e19118. PMID: 32049827 https://doi.org/10.1097/md.0000000000019118</mixed-citation><mixed-citation xml:lang="en">Liu Z, Chen S, Xu Y, Liu X, Xiong P, Fu Y. Surfactant protein A expression and distribution in human lung samples from smokers with or without chronic obstructive pulmonary disease in China. Medicine (Baltimore). 2020;99(7): e19118. PMID: 32049827 https://doi.org/10.1097/md.0000000000019118</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Nida, Lone K. Plasma surfactant protein A levels in apparently healthy smokers, stable and exacerbation COPD patients. Pak J Med Sci. 2018;34(4):934–939. PMID: 30190756 https://doi.org/10.12669/pjms.344.13951</mixed-citation><mixed-citation xml:lang="en">Nida, Lone K. Plasma surfactant protein A levels in apparently healthy smokers, stable and exacerbation COPD patients. Pak J Med Sci. 2018;34(4):934–939. PMID: 30190756 https://doi.org/10.12669/pjms.344.13951</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Mackay RA, Grainge CL, Lau LC, Barber C, Clark HW, Howarth PH. Airway surfactant protein D (SP-D) deficiency in adults with severe asthma. Chest. 2016;149(5):1165–1172. PMID: 26836907 https://doi.org/10.1016/j.chest.2015.11.012</mixed-citation><mixed-citation xml:lang="en">Mackay RA, Grainge CL, Lau LC, Barber C, Clark HW, Howarth PH. Airway surfactant protein D (SP-D) deficiency in adults with severe asthma. Chest. 2016;149(5):1165–1172. PMID: 26836907 https://doi.org/10.1016/j.chest.2015.11.012</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Dy ABC, Tanyaratsrisakul S, Voelker DR, Ledford JG. The Emerging Roles of Surfactant Protein-A in Asthma. J Clin Cell Immunol. 2018;9(4):553. PMID: 30123671 https://doi.org/10.4172/2155-9899.1000553</mixed-citation><mixed-citation xml:lang="en">Dy ABC, Tanyaratsrisakul S, Voelker DR, Ledford JG. The Emerging Roles of Surfactant Protein-A in Asthma. J Clin Cell Immunol. 2018;9(4):553. PMID: 30123671 https://doi.org/10.4172/2155-9899.1000553</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Dy ABC, Arif M, Addison K, Que LG, Boitano S, Kraft M, et al. Genetic Variation in Surfactant Protein-A2 Delays Resolution of Eosinophilia in Asthma. J Immunol. 2019;203(5):1122–1130. PMID: 31350355 https://doi.org/10.4049/jimmunol.1900546</mixed-citation><mixed-citation xml:lang="en">Dy ABC, Arif M, Addison K, Que LG, Boitano S, Kraft M, et al. Genetic Variation in Surfactant Protein-A2 Delays Resolution of Eosinophilia in Asthma. J Immunol. 2019;203(5):1122–1130. PMID: 31350355 https://doi.org/10.4049/jimmunol.1900546</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Mangogna A, Belmonte B, Agostinis C, Ricci G, Gulino A, Ferrara I. et al. Pathological Significance and Prognostic Value of Surfactant Protein D in Cancer. Front Immunol. 2018;9:1748. PMID: 30127783 https://doi.org/10.3389/fimmu.2018.01748 eCollection 2018.</mixed-citation><mixed-citation xml:lang="en">Mangogna A, Belmonte B, Agostinis C, Ricci G, Gulino A, Ferrara I., et al. Pathological Significance and Prognostic Value of Surfactant Protein D in Cancer. Front Immunol. 2018;9:1748. PMID: 30127783 https://doi.org/10.3389/fimmu.2018.01748 eCollection 2018.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Shiels MS, Chaturvedi AK, Katki HA, Gochuico BR, Caporaso NE, Engels EA. Circulating markers of interstitial lung disease and subsequent risk of lung cancer. Cancer Epidemiol Biomarkers Prev. 2011;20(10):22622272. PMID: 21828236 https://doi.org/10.1158/1055-9965.EPI-11-0326</mixed-citation><mixed-citation xml:lang="en">Shiels MS, Chaturvedi AK, Katki HA, Gochuico BR, Caporaso NE, Engels EA. Circulating markers of interstitial lung disease and subsequent risk of lung cancer. Cancer Epidemiol Biomarkers Prev. 2011;20(10):2262–2272. PMID: 21828236 https://doi.org/10.1158/1055-9965.EPI-11-0326</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Bonhomme O, André B, Gester F, de Seny D, Moermans C, Struman I, et al. Biomarkers in systemic sclerosis-associated interstitial lung disease: review of the literature. Rheumatology (Oxford). 2019;58(9):1534–1546. PMID: 31292645 https://doi.org/10.1093/rheumatology/kez230</mixed-citation><mixed-citation xml:lang="en">Bonhomme O, André B, Gester F, de Seny D, Moermans C, Struman I, et al. Biomarkers in systemic sclerosis-associated interstitial lung disease: review of the literature. Rheumatology (Oxford). 2019;58(9):1534–1546. PMID: 31292645 https://doi.org/10.1093/rheumatology/kez230</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">White ES, Xia M, Murray S, Dyal R, Flaherty CM, Flaherty KR, et al. Plasma surfactant protein-D, matrix metalloproteinase-7, and osteopontin index distinguishes idiopathic pulmonary fibrosis from other idiopathic interstitial pneumonias. Am J Respir Crit Care Med. 2016;194(10):1242–1251. PMID: 27149370 https://doi.org/10.1164/rccm.201505-0862OC</mixed-citation><mixed-citation xml:lang="en">White ES, Xia M, Murray S, Dyal R, Flaherty CM, Flaherty KR, et al. Plasma surfactant protein-D, matrix metalloproteinase-7, and osteopontin index distinguishes idiopathic pulmonary fibrosis from other idiopathic interstitial pneumonias. Am J Respir Crit Care Med. 2016;194(10):1242–1251. PMID: 27149370 https://doi.org/10.1164/rccm.201505-0862OC</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Nakamura K, Kato M, Shukuya T, Mori K, Sekimoto Y, Ihara H, et al. Surfactant protein-D predicts prognosis of interstitial lung disease induced by anticancer agents in advanced lung cancer: a case control study. BMC Cancer. 2017;17(1):302. PMID: 28464801 https://doi.org/10.1186/s12885-017-3285-6</mixed-citation><mixed-citation xml:lang="en">Nakamura K, Kato M, Shukuya T, Mori K, Sekimoto Y, Ihara H, et al. Surfactant protein-D predicts prognosis of interstitial lung disease induced by anticancer agents in advanced lung cancer: a case control study. BMC Cancer. 2017;17(1):302. PMID: 28464801 https://doi.org/10.1186/s12885017-3285-6</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Yoshikawa T, Otsuka M, Chiba H, Ikeda K, Mori Y, Umeda Y, et al. Surfactant protein A as a biomarker of outcomes of anti-fibrotic drug therapy in patients with idiopathic pulmonary fibrosis. BMC Pulm Med. 2020;20(1):27. PMID: 32005219 https://doi.org/10.1186/s12890-0201060-y</mixed-citation><mixed-citation xml:lang="en">Yoshikawa T, Otsuka M, Chiba H, Ikeda K, Mori Y, Umeda Y, et al. Surfactant protein A as a biomarker of outcomes of anti-fibrotic drug therapy in patients with idiopathic pulmonary fibrosis. BMC Pulm Med. 2020;20(1):27. PMID: 32005219 https://doi.org/10.1186/s12890-020-1060-y</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Krane M, Griese M. Surfactant protein D in serum from patients with allergic bronchopulmonary aspergillosis. Eur Respir J. 2003;22(4):592–595. PMID: 14582909 https://doi.org/10.1183/09031936.03.00060603</mixed-citation><mixed-citation xml:lang="en">Krane M, Griese M. Surfactant protein D in serum from patients with allergic bronchopulmonary aspergillosis. Eur Respir J. 2003;22(4):592–595. PMID: 14582909 https://doi.org/10.1183/09031936.03.00060603</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Ohnishi H, Yokoyama A, Kondo K, Hamada H, Abe M, Nishimura K, et al. Comparative study of KL-6, surfactant protein-A, surfactant proteinD, and monocyte chemoattractant protein-1 as serum markers for interstitial lung diseases. Am J Respir Crit Care Med. 2002;165(3):378–381. PMID: 11818324 https://doi.org/10.1164/ajrccm.165.3.2107134</mixed-citation><mixed-citation xml:lang="en">Ohnishi H, Yokoyama A, Kondo K, Hamada H, Abe M, Nishimura K, et al. Comparative study of KL-6, surfactant protein-A, surfactant protein-D, and monocyte chemoattractant protein-1 as serum markers for interstitial lung diseases. Am J Respir Crit Care Med. 2002;165(3):378–381. PMID: 11818324 https://doi.org/10.1164/ajrccm.165.3.2107134</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Determann RM, Royakkers AA, Haitsma JJ, Zhang H, Slutsky AS, Ranieri VM, et al. Plasma levels of surfactant protein D and KL-6 for evaluation of lung injury in critically ill mechanically ventilated patients. BMC Pulm Med. 2010;10:6. PMID: 20158912 https://doi.org/10.1186/14712466-10-6</mixed-citation><mixed-citation xml:lang="en">Determann RM, Royakkers AA, Haitsma JJ, Zhang H, Slutsky AS, Ranieri VM, et al. Plasma levels of surfactant protein D and KL-6 for evaluation of lung injury in critically ill mechanically ventilated patients. BMC Pulm Med. 2010;10:6. PMID: 20158912 https://doi.org/10.1186/1471-2466-10-6</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Ware LB, Koyama T, Billheimer DD, Wu W, Bernard GR, Thompson BT, et al. Prognostic and pathogenetic value of combining clinical and biochemical indices in patients with acute lung injury. Chest. 2010;137(2):288–296. PMID: 20158912 https://doi.org/10.1378/chest.09-1484</mixed-citation><mixed-citation xml:lang="en">Ware LB, Koyama T, Billheimer DD, Wu W, Bernard GR, Thompson BT, et al. Prognostic and pathogenetic value of combining clinical and biochemical indices in patients with acute lung injury. Chest. 2010;137(2):288-296. PMID: 20158912 https://doi.org/10.1378/chest.09-1484</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Calfee CS, Ware LB, Glidden DV, Eisner MD, Parsons PE, Thompson BT, et al. Use of risk reclassification with multiple biomarkers improves mortality prediction in acute lung injury. Crit Care Med. 2011;39(4):711–717. PMID: 21283009 https://doi.org/10.1097/CCM.0b013e318207ec3c</mixed-citation><mixed-citation xml:lang="en">Calfee CS, Ware LB, Glidden DV, Eisner MD, Parsons PE, Thompson BT, et al. Use of risk reclassification with multiple biomarkers improves mortality prediction in acute lung injury. Crit Care Med. 2011;39(4):711–717. PMID: 21283009 https://doi.org/10.1097/CCM.0b013e318207ec3c</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Robb CT, Regan KH, Dorward DA, Rossi AG. Key mechanisms governing resolution of lung inflammation. Semin Immunopathol. 2016;38(4):425–448. PMID: 27116944 https://doi.org/10.1007/s00281-016-0560-6</mixed-citation><mixed-citation xml:lang="en">Robb CT, Regan KH, Dorward DA, Rossi AG. Key mechanisms governing resolution of lung inflammation. Semin Immunopathol. 2016;38(4):425–448. PMID: 27116944 https://doi.org/10.1007/s00281-016-0560-6</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Мороз В.В., Голубев А.М., Кузовлев А.Н., Писарев В.М., Шабанов А.К., Голубев М.А. Сурфактантный протеин D-биомаркер острого респираторного дистресс-синдрома. Общая реаниматология. 2013;9(4):11–17.</mixed-citation><mixed-citation xml:lang="en">Moroz VV, Golubev AM, Kuzovlev AN, Pisarev VM, Shabanov AK, Golubev MA. Surfactant Protein D Is a Biomarker of Acute Respiratory Distress Syndrome. General Reanimatology. 2013;9(4):11–17. (In Russ.) https://doi.org/10.15360/1813-9779-2013-4-11</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Мороз В.В., Голубев А.М., Кузовлев А.Н., Писарев В.М., Половников С.Г., Шабанов А.К., и др. Сурфактантный протеин А (SP-A) – прогностический молекулярный биомаркер при остром респираторном дистресс-синдроме. Общая реаниматология. 2013;9(3):5–13.</mixed-citation><mixed-citation xml:lang="en">Moroz VV, Golubev AM, Kuzovlev AN, Pisarev VM, Polovnikov SG, Shabanov AK, et al. Surfactant Protein A (SP-A) is a Prognostic Molecular Biomarker in Acute Respiratory Distress Syndrome. General Reanimatology. 2013;9(3):5–13. (In Russ.) https://doi.org/10.15360/1813-9779-2013-3-5</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Vieira F, Kung J, Bhatti F. Structure, genetics and function of the pulmonary associated surfactant proteins A and D: The extrapulmonary role of these C type lectins. Ann Anat. 2017;211:184–201. PMID: 28351530 https://doi.org/10.1016/j.aanat.2017.03.002</mixed-citation><mixed-citation xml:lang="en">Vieira F, Kung J, Bhatti F. Structure, genetics and function of the pulmonary associated surfactant proteins A and D: The extra-pulmonary role of these C type lectins. Ann Anat. 2017;211:184–201. PMID: 28351530 https://doi.org/10.1016/j.aanat.2017.03.002</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Leth-Larsen R, Nordenbaek C, Tornoe I, Vivi Moeller, Anders Schlosser, Claus Koch, et al. Surfactant protein D (SP-D) serum levels in patients with community-acquired pneumonia. Clin Immunol. 2003;108(1):29–37. PMID: 12865068 https://doi.org/10.1016/s1521-6616(03)00042-1</mixed-citation><mixed-citation xml:lang="en">Leth-Larsen R, Nordenbaek C, Tornoe I, Vivi Moeller, Anders Schlosser, Claus Koch, et al. Surfactant protein D (SP-D) serum levels in patients with community-acquired pneumonia. Clin Immunol. 2003;108(1):29–37. PMID: 12865068 https://doi.org/10.1016/s1521-6616(03)00042-1</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Garcia-Laorden MI, Rodriguez de Castro F, Sole-Violan J, Rajas O, Blanquer J, Borderias L, et al. Influence of genetic variability at the surfactant proteins A and D in community-acquired pneumonia: a prospective, observational, genetic study. Crit Care. 2011;15(1):R57. PMID: 21310059 https://doi.org/10.1186/cc10030</mixed-citation><mixed-citation xml:lang="en">Garcia-Laorden MI, Rodriguez de Castro F, Sole-Violan J, Rajas O, Blanquer J, Borderias L, et al. Influence of genetic variability at the surfactant proteins A and D in community-acquired pneumonia: a prospective, observational, genetic study. Crit Care. 2011;15(1):R57. PMID: 21310059 https://doi.org/10.1186/cc10030</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Чучалин А.Г., Синопальников А.И., Козлов Р.С., Авдеев С.Н., Тюрин И.Е., Руднов В.А., и др. Российское респираторное общество (РРО), Межрегиональная ассоциация по клинической микробиологии и антимикробной химиотерапии (МАКМАХ). Клинические рекомендации по диагностике, лечению и профилактике тяжелой внебольничной пневмонии у взрослых. Пульмонология. 2014;(4):13–48.</mixed-citation><mixed-citation xml:lang="en">Chuchalin AG, Sinopal’nikov AI, Kozlov RS, Avdeev SN, Tyurin IE, Rudnov VA, et al. Rossiyskoe respiratornoe obshchestvo (RRO), Mezhregional’naya assotsiatsiya po klinicheskoy mikrobiologii i antimikrobnoy khimioterapii (MAKMAKh). Klinicheskie rekomendatsii po diagnostike, lecheniyu i profilaktike tyazheloy vnebol’nichnoy pnevmonii u vzroslykh. Russian Pulmonology. 2014;(4):13–48. (in Russ.). https://doi.org/10.18093/0869-01892014-0-4-13-48</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Spoorenberg S, Vestjens S, Rijkers G, Meek B, van Moorsel CHM, Grutters JC, et al. YKL-40, CCL18 and SP-D predict mortality in patients hospitalized with community-acquired pneumonia. Respirology. 2016;22(3):542–550. PMID: 27782361 https://doi.org/10.1111/resp.12924</mixed-citation><mixed-citation xml:lang="en">Spoorenberg S, Vestjens S, Rijkers G, Meek B, van Moorsel CHM, Grutters JC, et al. YKL-40, CCL18 and SP-D predict mortality in patients hospitalized with community-acquired pneumonia. Respirology. 2016;22(3):542–550. PMID: 27782361 https://doi.org/10.1111/resp.12924</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Spadaro S, Park M, Turrini C, Tunstall T, Thwaites R, Mauri T, et al. Biomarkers for Acute Respiratory Distress syndrome and prospects for personalised medicine. J Inflamm. 2019;16:1. PMID: 30675131 https://doi.org/10.1186/s12950-018-0202-y eCollection 2019.</mixed-citation><mixed-citation xml:lang="en">Spadaro S, Park M, Turrini C, Tunstall T, Thwaites R, Mauri T, et al. Biomarkers for Acute Respiratory Distress syndrome and prospects for personalised medicine. J Inflamm. 2019;16:1. PMID: 30675131 https://doi.org/10.1186/s12950-018-0202-y eCollection 2019.</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Brown J. Community-acquired pneumonia. Clin Med (Lond.). 2012;12(6):538–543. PMID: 23342408 https://doi.org/10.7861/clinmedicine.12-6-538</mixed-citation><mixed-citation xml:lang="en">Brown J. Community-acquired pneumonia. Clin Med (Lond.). 2012;12(6):538–543. PMID: 23342408 https://doi.org/10.7861/clinmedicine.12-6-538</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Welte T, Torres A, Nathwani D. Clinical and economic burden of community-acquired pneumonia among adults in Europe. Thorax. 2010;67(1):71–79. PMID: 20729232 https://doi.org/10.1136/thx.2009.129502</mixed-citation><mixed-citation xml:lang="en">Welte T, Torres A, Nathwani D. Clinical and economic burden of communityacquired pneumonia among adults in Europe. Thorax. 2010;67(1):71–79. PMID: 20729232 https://doi.org/10.1136/thx.2009.129502</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Ebell M, Bentivegna M, Cai X, Hulme C, Kearney M. Accuracy of Biomarkers for the Diagnosis of Adult Community-acquired Pneumonia: A Meta-analysis. Acad Emerg Med. 2020;27(30):195–206. PMID: 32100377 https://doi.org/10.1111/acem.13889</mixed-citation><mixed-citation xml:lang="en">Ebell M, Bentivegna M, Cai X, Hulme C, Kearney M. Accuracy of Biomarkers for the Diagnosis of Adult Community-acquired Pneumonia: A Metaanalysis. Acad Emerg Med. 2020;27(30):195–206. PMID: 32100377 https://doi.org/10.1111/acem.13889</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Honore PM, Mugisha A, Barreto Gutierrez L, Redant S, Kaefer K, Gallerani A, et al. Biomarker suPAR seems a good prognostic factor for community-acquired pneumonia but less prominent for septic shock. Crit Care. 2019;23(1):405. PMID: 31829222 https://doi.org/10.1186/s13054-019-2694-0</mixed-citation><mixed-citation xml:lang="en">Honore PM, Mugisha A, Barreto Gutierrez L, Redant S, Kaefer K, Gallerani A, et al. Biomarker suPAR seems a good prognostic factor for community-acquired pneumonia but less prominent for septic shock. Crit Care. 2019;23(1):405. PMID: 31829222 https://doi.org/10.1186/s13054-019-2694-0</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Karakioulaki M, Stolz D. Biomarkers and clinical scoring systems in community-acquired pneumonia. Ann Thorac Med. 2019;14(3):165–172. PMID: 31333765 https://doi.org/10.4103/atm.atm_305_18</mixed-citation><mixed-citation xml:lang="en">Karakioulaki M, Stolz D. Biomarkers and clinical scoring systems in community-acquired pneumonia. Ann Thorac Med. 2019;14(3):165–172. PMID: 31333765 https://doi.org/10.4103/atm.atm_305_18</mixed-citation></citation-alternatives></ref><ref id="cit40"><label>40</label><citation-alternatives><mixed-citation xml:lang="ru">Savvateeva E, Rubina A, Gryadunov D. Biomarkers of CommunityAcquired Pneumonia: A Key to Disease Diagnosis and Management. Biomed Res Int. 2019;2019:1701276. PMID: 31183362 https://doi.org/10.1155/2019/1701276 eCollection 2019</mixed-citation><mixed-citation xml:lang="en">Savvateeva E, Rubina A, Gryadunov D. Biomarkers of Community-Acquired Pneumonia: A Key to Disease Diagnosis and Management. Biomed Res Int. 2019;2019:1701276. PMID: 31183362 https://doi.org/10.1155/2019/1701276 eCollection 2019.</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>
