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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Almanac of Clinical Medicine</journal-id><journal-title-group><journal-title xml:lang="en">Almanac of Clinical Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Альманах клинической медицины</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2072-0505</issn><issn publication-format="electronic">2587-9294</issn><publisher><publisher-name xml:lang="en">Moscow Regional Research and Clinical Institute (MONIKI)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">17254</article-id><article-id pub-id-type="doi">10.18786/2072-0505-2024-52-019</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Serum concentrations of chromogranin A, serotonin and natriuretic peptide are decreased in patients with neuroendocrine tumors with overweight and obesity compared to healthy donors</article-title><trans-title-group xml:lang="ru"><trans-title>Сывороточные концентрации хромогранина А, серотонина и натрийуретического пептида снижены у больных нейроэндокринными опухолями с избыточной массой тела и ожирением в сравнении со здоровыми донорами</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9305-6713</contrib-id><contrib-id contrib-id-type="scopus">56112659000</contrib-id><contrib-id contrib-id-type="spin">1354-6690</contrib-id><name-alternatives><name xml:lang="en"><surname>Timofeev</surname><given-names>Yuriy S.</given-names></name><name xml:lang="ru"><surname>Тимофеев</surname><given-names>Юрий Сергеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, Senior Research Fellow, Head of the N.V. Perova Laboratory of Biochemical Markers of Chronical Noninfection Diseases Research</p></bio><bio xml:lang="ru"><p>канд. мед. наук, ст. науч. сотр., руководитель лаборатории изучения биохимических маркеров риска хронических неинфекционных заболеваний имени Н.В. Перовой</p></bio><email>Timofeev_lab@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0430-2754</contrib-id><name-alternatives><name xml:lang="en"><surname>Lyubimova</surname><given-names>Nina V.</given-names></name><name xml:lang="ru"><surname>Любимова</surname><given-names>Нина Васильевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Doctor of Biol. Sci., Professor, Principal Research and Development Advisor, Clinical Diagnostic Laboratory of the Consultative and Diagnostic Center</p></bio><bio xml:lang="ru"><p>д-р биол. наук, профессор, главный научный консультант, лаборатория клинико-диагностическая консультативно-диагностического центра</p></bio><email>biochimia@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4453-8430</contrib-id><name-alternatives><name xml:lang="en"><surname>Drapkina</surname><given-names>Oksana M.</given-names></name><name xml:lang="ru"><surname>Драпкина</surname><given-names>Оксана Михайловна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Professor, Academician of Russian Academy of Sciences, Director</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор, академик РАН, директор</p></bio><email>omdrapkina@gnicpm.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Medical Research Centre of Therapy and Preventive Medicine</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр терапии и профилактической медицины» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">N.N. Blokhin National Medical Research Centre of Oncology</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2024-08-16" publication-format="electronic"><day>16</day><month>08</month><year>2024</year></pub-date><pub-date date-type="pub" iso-8601-date="2024-09-10" publication-format="electronic"><day>10</day><month>09</month><year>2024</year></pub-date><volume>52</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>162</fpage><lpage>169</lpage><history><date date-type="received" iso-8601-date="2024-04-16"><day>16</day><month>04</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-08-01"><day>01</day><month>08</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Timofeev Y.S., Lyubimova N.V., Drapkina O.M.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Тимофеев Ю.С., Любимова Н.В., Драпкина О.М.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Timofeev Y.S., Lyubimova N.V., Drapkina O.M.</copyright-holder><copyright-holder xml:lang="ru">Тимофеев Ю.С., Любимова Н.В., Драпкина О.М.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://almclinmed.ru/jour/article/view/17254">https://almclinmed.ru/jour/article/view/17254</self-uri><abstract xml:lang="en"><p><bold>Background:</bold> Neuroendocrine tumors (NETs) are a group of neoplasms, in which circulating biomarkers chromogranin A (CgA), serotonin, and N-terminal brain natriuretic pro-peptide (NT-proBNP), used as a marker of carcinoid heart disease, are especially important in the diagnosis and monitoring. A number of pre-analytical factors, including patients' body mass index (BMI), have an impact on NETs biomarker concentrations.</p> <p><bold>Aim:</bold> To perform a comparative analysis of serum concentrations of CgA, serotonin and NT-proBNP in patients with NETs of various locations with normal body weight and with overweight or obesity.</p> <p><bold>Methods: </bold>This cross-sectional study included 94 patients with NETs of various locations and 78 provisionally healthy individuals without cancer and cardiovascular disorders, matched by gender and age to the patients. Serum biochemical markers were measured before a course of chemotherapy/biotherapy or surgery with the use of standardized enzyme-linked immunosorbent assays Chromogranin A NEOELISA (Eurodiagnostica), Serotonin ELISA (IBL), and the electrochemiluminescent assay (Cobas e601 analyzer, Roche). All NETs patients were divided into 2 subgroups: 46 patients with normal bodyweight (BMI 18 to 24.9) and 48 patients with overweight/obesity (BMI ≥ 25).</p> <p><bold>Results:</bold> The median BMI in the NET patients did not vary depending on their tumor extension, functional activity and malignancy grade. The median concentrations of CgA (150 ng/ml), serotonin (188 ng/ml) and NT-proBNP (117 pg/ml) in the NET patients with obesity and overweight were significantly lower (p = 0.008, p = 0.005 and p = 0.012, respectively) than in the NET patients with normal body weight (769 ng/ml, 704 ng/ml and 197 pg/ml, respectively). In the control group, significantly (p = 0.0001) lower levels in the subgroup with BMI ≥ 25 were obtained only for serotonin. The ROC analysis showed a decrease of the diagnostic efficiency of NET biomarkers in obesity: in the normal BMI group AUC (CgA) was 0.87 and AUC (serotonin) 0.78, whereas in those with BMI ≥ 25, the AUC (CgA) and AUC (serotonin) were 0.81 and 0.62, respectively.</p> <p><bold>Conclusion:</bold> Obesity may make it difficult to identify biochemical markers of NETs – CgA, serotonin and NT-proBNP.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Нейроэндокринные опухоли (НЭО) представляют собой группу новообразований, для диагностики и мониторинга которых особое значение имеют циркулирующие биомаркеры – хромогранин А (ХгА), серотонин и применяемый как маркер карциноидной болезни сердца N-концевой фрагмент предшественника мозгового натрийуретического пептида (англ. N-terminal pro-brain natriuretic peptide, NT-proBNP). На концентрацию биомаркеров НЭО влияет ряд преаналитических факторов, включая индекс массы тела (ИМТ) пациентов.</p> <p><bold>Цель</bold> – провести сравнительный анализ сывороточных концентраций ХгА, серотонина и NT-proBNP у больных НЭО различных локализаций с нормальной массой тела, с избыточной массой тела и ожирением.</p> <p><bold>Материал и методы.</bold> В поперечное исследование включено 94 пациента с НЭО различных локализаций и 78 условно здоровых лиц без онкологических и сердечно-сосудистых заболеваний, сопоставимых с больными по полу и возрасту. Определение биохимических маркеров в сыворотке крови проводили до назначения курса химиотерапии/биотерапии или хирургического лечения с использованием стандартизованных иммуноферментных тест-систем Chromogranin A NEOELISA (Eurodiagnostica, Швеция), Serotonin ELISA (IBL, США) и электрохемилюминесцентного метода на анализаторе Cobas e601 (Roche, Швейцария). Общую группу больных НЭО разделили на 2 подгруппы: 46 больных с нормальной массой тела (ИМТ от 18 до 24,9) и 48 пациентов с избыточной массой тела или ожирением (ИМТ ≥ 25).</p> <p><bold>Результаты.</bold> У больных НЭО медианы ИМТ не отличались в зависимости от распространенности процесса, функциональной активности и степени злокачественности опухоли. Медианы концентраций ХгА (150 нг/мл), серотонина (188 нг/мл) и NT-proBNP (117 пг/мл) у пациентов с НЭО с ожирением и избыточной массой тела были статистически значимо ниже (p = 0,008, p = 0,005 и p = 0,012 соответственно), чем у больных НЭО с нормальной массой тела (769 нг/мл, 704 нг/мл и 197 пг/мл соответственно). В подгруппе с ИМТ ≥ 25 контрольной группы статистически значимо (p = 0,0001) более низким был только уровень серотонина. По данным ROC-анализа, диагностическая эффективность биомаркеров НЭО при ожирении снижается – в группе пациентов с нормальной массой тела AUC (англ. area under curve – площадь под кривой) составила 0,87 для ХгА и 0,78 для серотонина, тогда как при ИМТ ≥ 25 – 0,81 и 0,62 соответственно.</p> <p><bold>Заключение.</bold> Ожирение является фактором, способным потенциально затруднить выявление биохимических маркеров НЭО – ХгА, серотонина и NT-proBNP.</p></trans-abstract><kwd-group xml:lang="en"><kwd>neuroendocrine tumors</kwd><kwd>obesity</kwd><kwd>body mass index</kwd><kwd>chromogranin A</kwd><kwd>serotonin</kwd><kwd>NT-proBNP</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>нейроэндокринные опухоли</kwd><kwd>ожирение</kwd><kwd>индекс массы тела</kwd><kwd>хромогранин А</kwd><kwd>серотонин</kwd><kwd>NT-proBNP</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Oberg K. 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