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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">mvjr</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский вестник Юга России</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Herald of the South of Russia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2219-8075</issn><issn pub-type="epub">2618-7876</issn><publisher><publisher-name>The Rostov State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21886/2219-8075-2023-14-2-90-96</article-id><article-id custom-type="elpub" pub-id-type="custom">mvjr-1727</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>3.1.22 ИНФЕКЦИОННЫЕ БОЛЕЗНИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INFECTIOUS DISEASES</subject></subj-group></article-categories><title-group><article-title>Возрастные особенности изменений биохимических параметров крови при COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Age aspects of the effects of the new coronavirus infection (COVID 19) on certain biochemical blood parameters</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алимурзаева</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Alimurzaeva</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марьям Мурадовна Алимурзаева, магистр 2-го года обучения, фельдшер-лаборант</p><p>Дагестан</p><p>Махачкала</p></bio><bio xml:lang="en"><p>Maryam M. Alimurzaeva, master of the 2nd year of study, medical assistant-laboratory assistant </p><p>Dagestan</p><p>Makhachkala</p></bio><email xlink:type="simple">alimurzayeva95@mail.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>Изудинова</surname><given-names>С. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Izudinova</surname><given-names>S. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сагибат Магомедовна Изудинова, врач-лаборант</p><p>Дагестан</p><p>Махачкала</p></bio><bio xml:lang="en"><p>Sagibat M. Izudinova, laboratory assistant</p><p>Dagestan</p><p>Makhachkala</p></bio><email xlink:type="simple">izudinovas@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7744-859X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Джафарова</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Dzhafarova</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Альбина Мехьядиновна Джафарова, доцент, врач-лаборант</p><p>кафедра биохимии и биофизики</p><p>Дагестан</p><p>Махачкала</p></bio><bio xml:lang="en"><p>Albina M. Dzhafarova, Associate Professor, laboratory assistant</p><p>Department of Biochemistry and Biophysics</p><p>Dagestan</p><p>Makhachkala</p></bio><email xlink:type="simple">albina19764@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9369-1645</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Халилов</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khalilov</surname><given-names>R. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рустам Абдуразакович Халилов, заведующий кафедрой</p><p>кафедра биохимии и биофизики</p><p>Дагестан</p><p>Махачкала</p></bio><bio xml:lang="en"><p>Rustam A. Khalilov, Head of the Department</p><p>Department of Biochemistry and Biophysics</p><p>Dagestan</p><p>Makhachkala</p></bio><email xlink:type="simple">dagbiofak@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Дагестанский государственный университет; Медико-санитарная часть МВД по Республике Дагестан</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Dagestan State University; Medical and sanitary unit of the Ministry of Internal Affairs for the Republic of Dagestan</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Медико-санитарная часть МВД по Республике Дагестан</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Medical and sanitary unit of the Ministry of Internal Affairs for the Republic of Dagestan</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Дагестанский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Dagestan State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2023</year></pub-date><volume>14</volume><issue>2</issue><fpage>90</fpage><lpage>96</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алимурзаева М.М., Изудинова С.М., Джафарова А.М., Халилов Р.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Алимурзаева М.М., Изудинова С.М., Джафарова А.М., Халилов Р.А.</copyright-holder><copyright-holder xml:lang="en">Alimurzaeva M.M., Izudinova S.M., Dzhafarova A.M., Khalilov R.A.</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.medicalherald.ru/jour/article/view/1727">https://www.medicalherald.ru/jour/article/view/1727</self-uri><abstract><sec><title>   Цель</title><p>   Цель: изучение влияния новой коронавирусной инфекции на ряд стандартных биохимических показателей крови у больных разного возраста.</p></sec><sec><title>   Материалы и методы</title><p>   Материалы и методы: исследовано 514 пациентов трёх возрастных групп (I группа — 25–35лет, II группа — 36–50 лет, III группа — 51–75 лет) с диагнозом «Внебольничная пневмония, вызванная инфекцией COVID-19». Определение всех биохимических параметров крови больных производили на биохимическом анализаторе Indiko.</p></sec><sec><title>   Результаты</title><p>   Результаты: исследование показателей азотистого метаболизма показало, что у больных всех возрастных групп содержание общего белка и мочевины не претерпевает существенных изменений, однако при этом происходит повышение концентрации креатинина и мочевой кислоты, наиболее выраженное у пациентов III группы. Исследование активностей АСТ, АЛТ в крови больных показало существенное их повышение у всех возрастных категорий, более значимое — у лиц II и III возрастных групп. При этом с возрастном увеличиваются активность а-амилазы, концентрации билирубина и снижаются уровни железа, достигая патологических значений. Содержание маркера воспаления (СРБ) демонстрирует наиболее выраженную зависимость от возраста больных: у больных I группы оно увеличивается в 6,9 раз, у II — в 12,3 раза, у лиц старше 51 года — в 17,25 раз.</p></sec><sec><title>   Вывод</title><p>   Вывод: с увеличением возраста больных COVID-19 отклонения многих биохимических показателей от соответствующих каждой группе контрольных уровней становятся более выраженными и достигают значений, существенно отклоняющихся от референсных.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>   Objective</title><p>   Objective: to study the effects of a new coronovirus infection on a number of standard biochemical blood parameters in patients of different ages.</p></sec><sec><title>   Materials and methods</title><p>   Materials and methods: 514 patients of 3 age groups (group 1st — 25–35 years old, group 2nd — 36–50 years old and group 3rd — over 51 years old) with a diagnosis of community-acquired pneumonia caused by COVID-19 infection were studied. All biochemical parameters of the blood of patients were determined using an Indiko biochemical analyzer.</p></sec><sec><title>   Results</title><p>   Results: the study of nitrogen metabolism indicators showed that in patients of all age groups, the content of total protein and urea does not undergo significant changes, however, there is an increase in the concentration of creatinine and uric acid, which is most pronounced in patients of the group 3rd. The study of the activities of AST, ALT in the blood of patients showed a significant increase in all age categories, more significant in persons of the groups 2nd and 3rd. At the same time, the activity of α-amylase, the concentration of bilirubin increase with age, and the levels of iron decrease, reaching pathological values. The content of the inflammation marker — CRP shows the most pronounced dependence on the age of patients: in patients of the group 1st, it increases by 6.9 times, in the 2nd group — by 12.3 times, in patients over 51 years old — by 17.25 once.</p></sec><sec><title>   Conclusion</title><p>   Conclusion: with an increase in the age of patients, the deviations of many biochemical parameters from the control levels corresponding to each group become more pronounced and reach values that deviate significantly from the reference.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>возраст больных</kwd><kwd>кровь</kwd><kwd>биохимические параметры</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>age of patients</kwd><kwd>blood</kwd><kwd>biochemical parameters</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование не имело спонсорской поддержки</funding-statement><funding-statement xml:lang="en">The study did not have sponsorship</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">Lan J., Ge J., Yu J., Shan S., Zhou H., et al. 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