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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">tiblj</journal-id><journal-title-group><journal-title xml:lang="ru">Туберкулез и болезни легких</journal-title><trans-title-group xml:lang="en"><trans-title>Tuberculosis and Lung Diseases</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2075-1230</issn><issn pub-type="epub">2542-1506</issn><publisher><publisher-name>Медицинские знания и технологии</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.58838/2075-1230-2025-103-1-54-59</article-id><article-id custom-type="elpub" pub-id-type="custom">tiblj-1866</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>Оценка диагностической информативности биомаркеров  в плевральной жидкости при плевритах различной этиологии</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation of Diagnostic Efficacy of Pleural Fluid Biomarkers in Pleurisy of Various Etiologies</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7810-880X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дьякова</surname><given-names>М. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Dyakova</surname><given-names>M. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дьякова Марина Евгеньевна  - Д. б. н., старший научный сотрудник НИЛ «Микробиологии, биохимии и иммуногенетики» </p><p>191036, г. Санкт-Петербург, Лиговский пр., д. 2-4 Тел. + 7 (812) 297-86-03</p></bio><bio xml:lang="en"><p>Marina E. Dyakova - Doctor of Biological Sciences, Senior Researcher of Microbiology, Biochemistry and Immunogenetics Research Laboratory</p><p>2-4 Ligovsky Ave., St. Petersburg, 191036 Phone: + 7 (812) 297-86-03</p></bio><email xlink:type="simple">marinadyakova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рубцова</surname><given-names>О. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Rubtsova</surname><given-names>O. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рубцова Ольга Леонидовна - Врач клинической лабораторной диагностики,  зав. клинико-диагностической лабораторией </p><p>191036, г. Санкт-Петербург, Лиговский пр., д. 2-4 Тел. + 7 (812) 297-86-03</p></bio><bio xml:lang="en"><p>Olga L. Rubtsova - Physician of Clinical Diagnostics Laboratory, Head of Clinical Diagnostic Laboratory </p><p>2-4 Ligovsky Ave., St. Petersburg, 191036 Phone: + 7 (812) 297-86-03</p></bio><email xlink:type="simple">rub.olga@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/0000-0002-9841-0061</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Эсмедляева</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Esmedlyaeva</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эсмедляева Диляра Салиевна - К. б. н., старший научный сотрудник НИЛ «Микробиологии, биохимии и иммуногенетики»</p><p>191036, г. Санкт-Петербург, Лиговский пр., д. 2-4 Тел. + 7 (812) 297-86-03</p><p>  </p></bio><bio xml:lang="en"><p>Dilyara S. Esmedlyaeva - Candidate of Biological Sciences, Senior Researcher  of Microbiology, Biochemistry and Immunogenetics Research Laboratory</p><p>2-4 Ligovsky Ave., St. Petersburg, 191036 Phone: + 7 (812) 297-86-03</p></bio><email xlink:type="simple">diljara-e@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/0000-0003-4385-9643</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яблонский</surname><given-names>П. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Yablonskiy</surname><given-names>P. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яблонский Петр Казимирович - Д. м. н., профессор, директор, заслуженный врач РФ, заведующий кафедрой госпитальной хирургии медицинского факультета</p><p> 191036, г. Санкт-Петербург, Лиговский пр., д. 2-4 Тел. + 7 (812) 297-86-03</p></bio><bio xml:lang="en"><p>Petr K. Yablonskiy - Doctor of Medical Sciences, Professor, Director, Honored Doctor of Russia, Head of Hospital Surgery Department, Faculty of Medicine</p><p>2-4 Ligovsky Ave., St. Petersburg, 191036 Phone: + 7 (812) 297-86-03</p></bio><email xlink:type="simple">piotr_yablonskii@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФГБУ «Санкт-Петербургский научно-исследовательский институт фтизиопульмонологии» МЗ РФ<country>Россия</country></aff><aff xml:lang="en">St. Petersburg Research Institute of Phthisiopulmonology, &#13;
Russian Ministry of Health<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ФГБУ «Санкт-Петербургский научно-исследовательский институт фтизиопульмонологии» МЗ РФ; ФГБОУ ВО «Санкт-Петербургский государственный университет»<country>Россия</country></aff><aff xml:lang="en">St. Petersburg Research Institute of Phthisiopulmonology, &#13;
Russian Ministry of Health; St. Petersburg University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>12</day><month>03</month><year>2025</year></pub-date><volume>103</volume><issue>1</issue><fpage>54</fpage><lpage>59</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дьякова М.Е., Рубцова О.Л., Эсмедляева Д.С., Яблонский П.К., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Дьякова М.Е., Рубцова О.Л., Эсмедляева Д.С., Яблонский П.К.</copyright-holder><copyright-holder xml:lang="en">Dyakova M.E., Rubtsova O.L., Esmedlyaeva D.S., Yablonskiy P.K.</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.tibl-journal.com/jour/article/view/1866">https://www.tibl-journal.com/jour/article/view/1866</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: оценка диагностической эффективности аденозиндезаминазы и других биохимических маркеров (общего белка, глюкозы, лактатдегидрогеназы) в плевральной жидкости при плевритах различной этиологии.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Ретроспективно проведен анализ комплекса показателей в плевральной жидкости и клинических данных 89 пациентов с плевральным выпотом различной этиологии: туберкулезном (ТП), метастатическом (МП) и других (ДП) плевритах. В плевральной жидкости оценена активность ADA, лактатдегидрогеназы (LDG), уровни общего белка (TP), глюкозы (Glu). </p></sec><sec><title>Результаты исследования</title><p>Результаты исследования. У больных с ТП активность ADA статистически значимо выше, чем у больных с МП и с ДП. Высокая активность фермента обусловлена статистически значимым повышением активности изофермента ADA-2. Соотношения LDG/ADA и LDG/ADA-2, уровень Glu у больных с ТП статистически значимо ниже, и напротив, соотношения ADA/TP и ADA-2/TP, ADA/Glu и ADA-2/Glu – выше, чем у больных двух других групп. Выявлена высокая диагностическая информативность ADA, ADA-2, LDG/ADA и LDG/ADA-2: чувствительность тестов – 91, 82, 100%, специфичность – 87, 81, 83 и 92% соответственно.</p></sec><sec><title>Выводы</title><p>Выводы. Для дифференциальной диагностики ТП наравне с эффективным биомаркером ADA можно использовать соотношение LDG/ADA. Соотношения активности ADA/TP и ADA-2/TP, ADA/Glu и ADA-2/Glu малоинформативны для дифференциальной диагностики ТП.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>The objective</title><p>The objective: to evaluate diagnostic efficacy of adenosine deaminase and other biochemical markers (total protein, glucose, and lactate dehydrogenase) in pleural fluid in pleurisy of various etiologies.</p></sec><sec><title>Subjects and Methods</title><p>Subjects and Methods. The following parameters in pleural fluid and clinical data of 89 patients with pleural effusion of various etiologies were retrospectively analyzed: tuberculous (TBP), metastatic (MP) and other (OP) pleurisy. In the pleural fluid, the activity of ADA, lactate dehydrogenase (LDG), levels of total protein (TP), and glucose (Glu) were assessed.</p></sec><sec><title>Results</title><p>Results. ADA activity was statistically significantly higher in patients with tuberculous pleurisy versus patients with metastatic pleurisy and pleurisy of some other etiology. High enzyme activity was due to a statistically significant increase in activity of the ADA-2 isoenzyme. The LDG/ADA and LDG/ADA-2 ratios, the Glu level in patients with tuberculous plerisy were statistically significantly lower, and, on the contrary, the ADA/TP and ADA-2/TP, ADA/Glu and ADA-2/Glu ratios were higher than in patients from the other two groups. High diagnostic efficacy of ADA, ADA-2, LDG/ADA and LDG/ADA-2 was revealed: sensitivity of the tests made 91, 82, 100%, specificity made 87, 81, 83 and 92%, respectively.</p></sec><sec><title>Conclusions</title><p>Conclusions. For differential diagnosis of tuberculous pleurisy, the LDG/ADA ratio can be used along with ADA which is the effective biomarker. The ratios of ADA/TP and ADA-2/TP, ADA/Glu and ADA-2/Glu activity are of little information value for the differential diagnosis of tuberculous pleurisy.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>туберкулезный плеврит</kwd><kwd>метастатический плеврит</kwd><kwd>другие плевриты</kwd><kwd>аденозиндезаминаза и ее изоферменты</kwd><kwd>лактатдегидрогеназа</kwd><kwd>общий белок</kwd><kwd>глюкоза</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tuberculous pleurisy</kwd><kwd>metastatic pleurisy</kwd><kwd>other pleurisy</kwd><kwd>adenosine deaminase and its isoenzymes</kwd><kwd>lactate dehydrogenase</kwd><kwd>total protein</kwd><kwd>glucose</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">Галкин В.Б., Ариэль Б.М., Чужов А.Л. 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