<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">rpcardio</journal-id><journal-title-group><journal-title xml:lang="en">Rational Pharmacotherapy in Cardiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Рациональная Фармакотерапия в Кардиологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1819-6446</issn><issn pub-type="epub">2225-3653</issn><publisher><publisher-name>«SILICEA-POLIGRAF» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20996/1819-6446-2021-10-05</article-id><article-id custom-type="elpub" pub-id-type="custom">rpcardio-2576</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="en"><subject>ORIGINAL STUDIES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group></article-categories><title-group><article-title>Endothelial Microvascular Dysfunction and Its Relationship with Haptoglobin Levels in Patients with Different Phenotypes of Chronic Heart Failure</article-title><trans-title-group xml:lang="ru"><trans-title>Эндотелиальная микрососудистая дисфункция и ее взаимосвязь с уровнем гаптоглобина у пациентов с различными фенотипами хронической сердечной недостаточности</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0758-5609</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Подзолков</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Podzolkov</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Подзолков Валерий Иванович</p><p>Москва, eLibrary SPIN 8683-2155</p></bio><bio xml:lang="en"><p>Valery I. Podzolkov</p><p>Moscow, eLibrary SPIN 8683-2155</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6531-6255</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Драгомирецкая</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dragomiretskaya</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Драгомирецкая Наталья Александровна</p><p>Москва, eLibrary SPIN 9484-6498</p></bio><bio xml:lang="en"><p>Natalia A. Dragomiretskaya</p><p>Moscow, eLibrary SPIN 9484-6498</p></bio><email xlink:type="simple">dragomiretskaya_natalia@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/0000-0002-0270-4111</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Беляев</surname><given-names>Ю. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Beliaev</surname><given-names>I. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Беляев Юрий Геннадьевич</p><p>Москва, eLibrary SPIN 3936-8409</p></bio><bio xml:lang="en"><p>Iiuriy G. Beliaev</p><p>Moscow, eLibrary SPIN 3936-8409</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4701-9473</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кучерова</surname><given-names>Ю. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kucherova</surname><given-names>Ju. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кучерова Юлия Сергеевна</p><p>Москва</p></bio><bio xml:lang="en"><p>Julia S. Kucherova</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7294-6418</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казадаева</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazadaeva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Казадаева Анна Васильевна</p><p>Москва</p></bio><bio xml:lang="en"><p>Anna V. Kazadaeva</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Первый Московский государственный медицинский университет им. И.М. Сеченова (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I.M. Sechenov First Moscow State Medical University (Sechenov University)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>02</day><month>11</month><year>2021</year></pub-date><volume>17</volume><issue>5</issue><fpage>674</fpage><lpage>682</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Podzolkov V.I., Dragomiretskaya N.A., Beliaev I.G., Kucherova J.S., Kazadaeva A.V., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Подзолков В.И., Драгомирецкая Н.А., Беляев Ю.Г., Кучерова Ю.С., Казадаева А.В.</copyright-holder><copyright-holder xml:lang="en">Podzolkov V.I., Dragomiretskaya N.A., Beliaev I.G., Kucherova J.S., Kazadaeva 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://www.rpcardio.online/jour/article/view/2576">https://www.rpcardio.online/jour/article/view/2576</self-uri><abstract><sec><title>Aim</title><p>Aim. To study the relationship between the level of haptoglobin and the main indicators of microcirculation (MC) in patients with different phenotypes of chronic heart failure (CHF).</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Patients with different phenotypes of functional class II-IV chronic heart failure according to NYHA (n=80) underwent a general clinical examination, determination of the serum haptoglobin level by enzyme-linked immunosorbent assay, as well as an assessment of the MC state on the medial surface of the upper third of the leg by laser Doppler flowmetry (LDF).</p></sec><sec><title>Results</title><p>Results. Patients with CHF included patients with preserved left ventricular ejection fraction (HFpEF; n=27, intermediate ejection fraction (HFmrEF; n=25) and reduced ejection fraction (HFrEF; n=28). The median value of haptoglobin in the HFpEF group was 1387.6 [ 747.5; 1946.9] mg/l, in the HFmrEF group was 1583.4 [818.9; 2201.4] mg/l, in the HFrEF group was 968.5 [509.5; 1324.4] mg/l. Correlation analysis revealed statistically significant relationships between haptoglobin and the amplitudes of the endothelial frequency range (Ae) in the groups of HFmrEF (r=-0.628, 95% confidence interval [CI] -0.256; -0.825, p=0.003) and HFrEF (r=-0.503, 95% CI -0.089; -0.803, p=0.02). A negative relationship between the haptoglobin level and Kv and σ was revealed, as well as a formula for calculating the value of haptoglobin was obtained, which is predicted on the basis of the amplitude index of the endothelial frequency range: [haptoglobin]=1787-(4053×Ae).</p></sec><sec><title>Conclusion</title><p>Conclusion. The multifactorial effect of haptoglobin is realized in the central and peripheral mechanisms of MC regulation. Low values of haptoglobin in blood plasma should be considered as a potential marker for the development of complications and used in a comprehensive assessment of the state of patients with CHF. Evaluation of the diagnostic and prognostic significance of haptoglobin, especially in patients with HFmrEF, requires further study.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цель</title><p>Цель. Изучить взаимосвязи уровня гаптоглобина и основных показателей микроциркуляции (МКЦ) у пациентов с разными фенотипами хронической сердечной недостаточности (ХСН).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Пациентам с различными фенотипами ХСН II-IV функционального класса по NYHA (n=80) проведено общеклиническое обследование, определение уровня сывороточного гаптоглобина методом твердофазного иммуноферментного анализа, оценка состояния МКЦ на медиальной поверхности верхней трети голени методом лазерной допплеровской флоуметрии (ЛДФ).</p></sec><sec><title>Результаты</title><p>Результаты. Cреди больных ХСН выделены пациенты с сохраненной фракцией выброса левого желудочка (СНсФВ; n=27, промежуточной ФВ (СНпФВ; n=25) и низкой ФВ (СНнФВ; n=28). Медианное значение гаптоглобина составило в группе СНсФВ 1387,6 [747,5; 1946,9] мг/л, в группе СНпФВ – 1583,4 [818,9; 2201,4] мг/л, в группе СНнФВ – 968,5 [509,5; 1324,4] мг/л. При проведении корреляционного и бутстрап анализа выявлены статистически значимые взаимосвязи гаптоглобина и амплитуд эндотелиального частотного диапазона (Аэ) в группах СНпФВ (r=-0,628; 95% доверительный интервал [ДИ] -0,256; -0,825, p=0,003) и СНнФВ (r=-0,503, 95% ДИ -0,089; -0,803, p=0,02. Выявлена отрицательная взаимосвязь уровня гаптоглобина с Kv и σ, а также получена формула расчета значения гаптоглобина, прогнозируемого на основании амплитудного показателя эндотелиального частотного диапазона: [гаптоглобин]=1787-(4053×Aэ).</p></sec><sec><title>Заключение</title><p>Заключение. Многофакторное влияние гаптоглобина реализуется как в центральном, так и периферическом механизмах регуляции МКЦ. Низкие значения гаптоглобина в плазме крови следует рассматривать как потенциальный маркер развития осложнений и использовать в комплексной оценке состояния пациентов с ХСН. Оценка диагностической и прогностической значимости гаптоглобина, особенно у больных СНпФВ, требует дальнейшего изучения.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>хроническая сердечная недостаточность</kwd><kwd>фракция выброса</kwd><kwd>микроциркуляция</kwd><kwd>гаптоглобин</kwd><kwd>эндотелиальная дисфункция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chronic heart failure</kwd><kwd>ejection fraction</kwd><kwd>microcirculation</kwd><kwd>haptoglobin</kwd><kwd>endothelial dysfunction</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование проведено при поддержке Сеченовского Университета</funding-statement><funding-statement xml:lang="en">The study was performed with the support of the Sechenov University</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">Мареев В.Ю., Фомин И.В., Агеев Ф.Т., и др. Клинические рекомендации ОССНРКО-РНМОТ. Сердечная недостаточность: хроническая (ХСН) и острая декомпенсированная (ОДСН). Диагностика, профилактика и лечение. Кардиология. 2018;58(6S):8-158. DOI:10.18087/cardio.2475.</mixed-citation><mixed-citation xml:lang="en">Mareev VYu, Fomin IV, Ageev FT, et al. Russian Heart Failure Society, Russian Society of Cardiology. Russian Scientific Medical Society of Internal Medicine Guidelines for Heart failure: chronic (CHF) and acute decompensated (ADHF). Diagnosis, prevention and treatment. Kardiologiia. 2018;58(6S):8- 158 (In Russ.) DOI:10.18087/cardio.2475.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Murphy SP, Kakkar R, McCarthy CP, Januzzi JL Jr. Inflammation in Heart Failure: JACC State-of-the-Art Review. J Am Coll Cardiol. 2020;75(11):1324-40. DOI:10.1016/j.jacc.2020.01.014.</mixed-citation><mixed-citation xml:lang="en">Murphy SP, Kakkar R, McCarthy CP, Januzzi JL Jr. Inflammation in Heart Failure: JACC State-of-the-Art Review. J Am Coll Cardiol. 2020;75(11):1324-40. DOI:10.1016/j.jacc.2020.01.014.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Polonsky M, Gayle MF. Existence dans le plasma sanguine d'une substance activant enaction peroxydasque de hemoglobine. C R Soc Biol. 1938;129:457-461.</mixed-citation><mixed-citation xml:lang="en">Polonsky M, Gayle MF. Existence dans le plasma sanguine d'une substance activant enaction peroxydasque de hemoglobine. C R Soc Biol. 1938;129:457-461.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Andersen CBF, Stoedkilde K, Sæderup KL, et al. Haptoglobin. Antioxid Redox Signal. 2017; 26(14):814- 31. DOI: 10.1089/ars.2016.6793.</mixed-citation><mixed-citation xml:lang="en">Andersen CBF, Stoedkilde K, Sæderup KL, et al. Haptoglobin. Antioxid Redox Signal. 2017; 26(14):814- 31. DOI: 10.1089/ars.2016.6793.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Maffei M, Barone I, Scabia G, Santini F. The Multifaceted Haptoglobin in the Context of Adipose Tissue and Metabolism. EndocrRev. 2016;37(4):403-16. DOI:10.1210/er.2016-1009.</mixed-citation><mixed-citation xml:lang="en">Maffei M, Barone I, Scabia G, Santini F. The Multifaceted Haptoglobin in the Context of Adipose Tissue and Metabolism. EndocrRev. 2016;37(4):403-16. DOI:10.1210/er.2016-1009.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Levy AP, Asleh R, Blum S, Levy NS, et al. Haptoglobin: basic and clinical aspects. Antioxid Redox Signal. 2010;12(2):293-304. DOI: 10.1089/ars.2009.2793.</mixed-citation><mixed-citation xml:lang="en">Levy AP, Asleh R, Blum S, Levy NS, et al. Haptoglobin: basic and clinical aspects. Antioxid Redox Signal. 2010;12(2):293-304. DOI: 10.1089/ars.2009.2793.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Thomsen JH, Etzerodt A, Svendsen P, Moestrup SK. The haptoglobin-CD163-heme oxygenase-1 pathway for hemoglobin scavenging. Oxid Med Cell Longev. 2013;213:523652. DOI:10.1155/2013/523652.</mixed-citation><mixed-citation xml:lang="en">Thomsen JH, Etzerodt A, Svendsen P, Moestrup SK. The haptoglobin-CD163-heme oxygenase-1 pathway for hemoglobin scavenging. Oxid Med Cell Longev. 2013;213:523652. DOI:10.1155/2013/523652.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Tamara S, Franc V, Heck AJR. A wealth of genotype-specific proteoforms fine-tunes hemoglobin scavenging by haptoglobin. Proc Natl Acad Sci USA. 2020; 117(27): 15554-64. DOI:10.1073/pnas.2002483117.</mixed-citation><mixed-citation xml:lang="en">Tamara S, Franc V, Heck AJR. A wealth of genotype-specific proteoforms fine-tunes hemoglobin scavenging by haptoglobin. Proc Natl Acad Sci USA. 2020; 117(27): 15554-64. DOI:10.1073/pnas.2002483117.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Kristiansen M, Graversen JH, Jacobsen C, et al. Identification of the haemoglobin scavenger receptor. Nature. 2001;409(6817):198-201. DOI:10.1038/35051594.</mixed-citation><mixed-citation xml:lang="en">Kristiansen M, Graversen JH, Jacobsen C, et al. Identification of the haemoglobin scavenger receptor. Nature. 2001;409(6817):198-201. DOI:10.1038/35051594.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Schaer DJ, Vinchi F, Ingoglia G, et al. Haptoglobin, hemopexin, and related defense pathways-basic science, clinical perspectives, and drug development. Front Physiol. 2014;5:415. DOI:10.3389/fphys.2014.00415.</mixed-citation><mixed-citation xml:lang="en">Schaer DJ, Vinchi F, Ingoglia G, et al. Haptoglobin, hemopexin, and related defense pathways-basic science, clinical perspectives, and drug development. Front Physiol. 2014;5:415. DOI:10.3389/fphys.2014.00415.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Buehler PW, Vallelian F, Mikolajczyk MG, et al. Structural stabilization in tetrameric or polymeric hemoglobin determines its interaction with endogenous antioxidant scavenger pathways. Antioxid Redox Signal. 2008;10(8):1449-62. DOI:10.1089/ars.2008.2028.</mixed-citation><mixed-citation xml:lang="en">Buehler PW, Vallelian F, Mikolajczyk MG, et al. Structural stabilization in tetrameric or polymeric hemoglobin determines its interaction with endogenous antioxidant scavenger pathways. Antioxid Redox Signal. 2008;10(8):1449-62. DOI:10.1089/ars.2008.2028.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">MacKellar M, Vigerust DJ. Role of haptoglobin in health and disease: a focus on diabetes. Clin Diabetes. 2016;34(3):148-57. DOI:10.2337/diaclin.34.3.148.</mixed-citation><mixed-citation xml:lang="en">MacKellar M, Vigerust DJ. Role of haptoglobin in health and disease: a focus on diabetes. Clin Diabetes. 2016;34(3):148-57. DOI:10.2337/diaclin.34.3.148.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Pontone G, Andreini D, Guaricci AI, et al. Association between haptoglobin phenotype and microvascular obstruction in patients with STEMI: a cardiac magnetic resonance study. JACC Cardiovasc Imaging. 2019;12(6):1007-17. DOI:10.1016/j.jcmg.2018.03.004.</mixed-citation><mixed-citation xml:lang="en">Pontone G, Andreini D, Guaricci AI, et al. Association between haptoglobin phenotype and microvascular obstruction in patients with STEMI: a cardiac magnetic resonance study. JACC Cardiovasc Imaging. 2019;12(6):1007-17. DOI:10.1016/j.jcmg.2018.03.004.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Lang RM, Badano LP, Mor-Avi V, et al. Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. J Am Soc Echocardiogr. 2015;28(1):1-39.e14. DOI:10.1016/j.echo.2014.10.003.</mixed-citation><mixed-citation xml:lang="en">Lang RM, Badano LP, Mor-Avi V, et al. Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. J Am Soc Echocardiogr. 2015;28(1):1-39.e14. DOI:10.1016/j.echo.2014.10.003.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Крупаткин А.И., Сидоров В.И., Танканаг А.В., Чемерис Н.К. Диагностика функционального состояния микрогемоциркуляции методом лазерной допплеровской флоуметрии. В: Крупаткин А.И., Сидоров В.И. Функциональная диагностика состояния микроциркуляторно-тканевых систем: Колебания, информация, нелинейность. Руководство для врачей. М.: Ленанд; 2016. с.156-251.</mixed-citation><mixed-citation xml:lang="en">Krupatkin AI, Sidorov VV, Tankanag AV, Chemeris NK. Diagnostics of the functional state of microcirculation by laser Doppler flowmetry. In: Krupatkin AI, Sidorov VV. Functional diagnostics of the state of microcirculatory-tissue systems: Fluctuations, information, nonlinearity. Guide for Physicians. Moscow: Lenand; 2016. p.156-251 (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Маколкин В.И., Подзолков В.И., Бранько В.В., и др. Микроциркуляция в кардиологии. М.: Визарт; 2004.</mixed-citation><mixed-citation xml:lang="en">Makolkin VI, Podzolkov VI, Branko VV, et al. Microcirculation in cardiology. Moscow: Vizart; 2004 (In Russ.) [Маколкин В.И., Подзолков В.И., Бранько В.В., и др. Микроциркуляция в кардиологии. М.: Визарт; 2004].</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Fernandes DC, Araujo TLS, Laurindo FR, Tanaka LY. Endocrine function and metabolic interaction. In: Lilly LS, ed. Pathophysiology of Heart Disease. 6th ed. Baltimore, MD: Wolters Kluwer/Lippincott Williams &amp; Wilkins; 2011. p.85-92.</mixed-citation><mixed-citation xml:lang="en">Fernandes DC, Araujo TLS, Laurindo FR, Tanaka LY. Endocrine function and metabolic interaction. In: Lilly LS, ed. Pathophysiology of Heart Disease. 6th ed. Baltimore, MD: Wolters Kluwer/Lippincott Williams &amp; Wilkins; 2011. p.85-92.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Naryzhny SN, Legina OK. Haptoglobin as a biomarker. Biomed Khim. 2021;67(2):105-18. (in Russ.). [Нарыжный С.Н., Легина О.К. Гаптоглобин как биомаркер. Биомедицинская Химия. 2021;67(2):105-18]. DOI:10.18097/PBMC20216702105.</mixed-citation><mixed-citation xml:lang="en">Naryzhny SN, Legina OK. Haptoglobin as a biomarker. Biomed Khim. 2021;67(2):105-18. (in Russ.). DOI:10.18097/PBMC20216702105.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Engström G, Hedblad B, Tydén P, Lindgärde F. Inflammation-sensitive plasma proteins are associated with increased incidence of heart failure: a population-based cohort study. Atherosclerosis. 2009;202(2):617-22. DOI:10.1016/j.atherosclerosis.2008.05.038</mixed-citation><mixed-citation xml:lang="en">Engström G, Hedblad B, Tydén P, Lindgärde F. Inflammation-sensitive plasma proteins are associated with increased incidence of heart failure: a population-based cohort study. Atherosclerosis. 2009;202(2):617-22. DOI:10.1016/j.atherosclerosis.2008.05.038</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Haas B, Serchi T, Wagner DR, et al. Proteomic analysis of plasma samples from patients with acute myocardial infarction identifies haptoglobin as a potential prognostic biomarker. Journal of Proteomics. 2011;75(1):229-36. DOI:10.1016/j.jprot.2011.06.028.</mixed-citation><mixed-citation xml:lang="en">Haas B, Serchi T, Wagner DR, et al. Proteomic analysis of plasma samples from patients with acute myocardial infarction identifies haptoglobin as a potential prognostic biomarker. Journal of Proteomics. 2011;75(1):229-36. DOI:10.1016/j.jprot.2011.06.028.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Lu DY, Lin C P, Wu CH, et al. Plasma haptoglobin level can augment NT-proBNP to predict poor outcome in patients with severe acute decompensated heart failure. J Investig Med. 2019;67(1):20- 7. DOI:10.1136/jim-2018-000710.</mixed-citation><mixed-citation xml:lang="en">Lu DY, Lin C P, Wu CH, et al. Plasma haptoglobin level can augment NT-proBNP to predict poor outcome in patients with severe acute decompensated heart failure. J Investig Med. 2019;67(1):20- 7. DOI:10.1136/jim-2018-000710.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Dobryszycka W. Biological functions of haptoglobin - new pieces to an old puzzle. Eur J Clin Chem Clin Biochem. 1997;35(9):647-54.</mixed-citation><mixed-citation xml:lang="en">Dobryszycka W. Biological functions of haptoglobin - new pieces to an old puzzle. Eur J Clin Chem Clin Biochem. 1997;35(9):647-54.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Richards MP. Redox reactions of myoglobin. Antioxid Redox Signal. 2013;18(17):2342-51. DOI:10.1089/ars.2012.4887.</mixed-citation><mixed-citation xml:lang="en">Richards MP. Redox reactions of myoglobin. Antioxid Redox Signal. 2013;18(17):2342-51. DOI:10.1089/ars.2012.4887.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Столбова С.К., Драгомирецкая Н.А., Беляев Ю.Г., Подзолков В.И. Клинико-лабораторные ассоциации индексов печеночного фиброза у больных с декомпенсацией хронической сердечной недостаточности II-IV функциональных классов. Кардиология. 2020;60(5):90-9. DOI:10.18087/cardio.2020.5.n920.</mixed-citation><mixed-citation xml:lang="en">Stolbova SK, Dragomiretskaya NA, Beliaev YuG, Podzolkov VI. Clinical and laboratory associations of liver fibrosis indexes in patients with decompensated Chronic Heart Failure II-IV Functional Classes. Kardiologiia. 2020;60(5):90-9 (In Russ.) DOI:10.18087/cardio.2020.5.n920.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Frimat M, Boudhabhay I, Roumenina LT. Hemolysis derived products toxicity and endothelium: Model of the second hit. Toxins (Basel). 2019;11(11):660. DOI:10.3390/toxins11110660.</mixed-citation><mixed-citation xml:lang="en">Frimat M, Boudhabhay I, Roumenina LT. Hemolysis derived products toxicity and endothelium: Model of the second hit. Toxins (Basel). 2019;11(11):660. DOI:10.3390/toxins11110660.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Alem MM. Endothelial dysfunction in chronic heart failure: assessment, findings, significance, and potential therapeutic targets. Int J Mol Sci. 2019;20(13):3198. DOI:10.3390/ijms20133198.</mixed-citation><mixed-citation xml:lang="en">Alem MM. Endothelial dysfunction in chronic heart failure: assessment, findings, significance, and potential therapeutic targets. Int J Mol Sci. 2019;20(13):3198. DOI:10.3390/ijms20133198.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Zuchi C, Tritto I, Carluccio E, et al. Role of endothelial dysfunction in heart failure. Heart Fail Rev. 2020;25(1):21-30. DOI:10.1007/s10741-019-09881-3.</mixed-citation><mixed-citation xml:lang="en">Zuchi C, Tritto I, Carluccio E, et al. Role of endothelial dysfunction in heart failure. Heart Fail Rev. 2020;25(1):21-30. DOI:10.1007/s10741-019-09881-3.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">di Masi A, De Simone G, Ciaccio C, et al. Haptoglobin: From hemoglobin scavenging to human health. Mol Aspects Med. 2020;73:100851. DOI:10.1016/j.mam.2020.100851.</mixed-citation><mixed-citation xml:lang="en">di Masi A, De Simone G, Ciaccio C, et al. Haptoglobin: From hemoglobin scavenging to human health. Mol Aspects Med. 2020;73:100851. DOI:10.1016/j.mam.2020.100851.</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Rastogi A, Novak E, Platts AE, Mann DL. Epidemiology, pathophysiology and clinical outcomes for heart failure patients with a mid-range ejection fraction. Eur J Heart Fail. 2017;19(12):1597-605. DOI:10.1002/ejhf.879</mixed-citation><mixed-citation xml:lang="en">Rastogi A, Novak E, Platts AE, Mann DL. Epidemiology, pathophysiology and clinical outcomes for heart failure patients with a mid-range ejection fraction. Eur J Heart Fail. 2017;19(12):1597-605. DOI:10.1002/ejhf.879</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>
