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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">perinatology</journal-id><journal-title-group><journal-title xml:lang="ru">Российский вестник перинатологии и педиатрии</journal-title><trans-title-group xml:lang="en"><trans-title>Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1027-4065</issn><issn pub-type="epub">2500-2228</issn><publisher><publisher-name>Ltd. “The National Academy of Pediatric Science and Innovation”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21508/1027-4065-2022-67-2-100-108</article-id><article-id custom-type="elpub" pub-id-type="custom">perinatology-1625</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>Особенности течения острого пиелонефрита у детей, перенесших новую коронавирусную инфекцию (COVID-19)</article-title><trans-title-group xml:lang="en"><trans-title>Features of the course of acute pyelonephritis in children with an experience of a new coronavirus infection (COVID-19)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2892-4665</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Еремеева</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Eremeeva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Еремеева Алина Владимировна — к.м.н., доц.кафедры педиатрии и детских инфекционных болезней Клинического института детского здоровья им. Н.Ф. Филатова</p><p>119435 Москва, Большая Пироговская ул., 19 стр. 1</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">alinaeremeeva@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/0000-0002-0942-0103</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Длин</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dlin</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Длин Владимир Викторович — д.м.н., проф., рук. отдела наследственных и приобретенных болезней почек им. профессора М.С. Игнатовой, зам. директора по научной работе</p><p>127412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Первый Московский государственный медицинский университет им. И.М. Сеченова» Минздрава России (Сеченовский университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sechenov First Moscow State Medical University (Sechenov University)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ОСП «Научно-исследовательский клинический институт педиатрии им. академика Ю.Е. Вельтищева» ФГАОУ ВО РНИМУ им. Н.И. Пирогова Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Veltischev Research and Clinical Institute for Pediatrics of the Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>10</day><month>06</month><year>2022</year></pub-date><volume>67</volume><issue>2</issue><fpage>100</fpage><lpage>108</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ltd. “The National Academy of Pediatric Science and Innovation”, 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><copyright-holder xml:lang="en">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><license xlink:href="https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.ped-perinatology.ru/jour/article/view/1625">https://www.ped-perinatology.ru/jour/article/view/1625</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования. Определить клинико-лабораторные особенности течения острого пиелонефрита у детей, перенесших COVID-19, и определить риск развития хронической болезни почек.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Основная группа состоит из 36 пациентов с дебютом острого пиелонефрита после перенесенного ранее COVID-19, средний возраст 7,5 года. В группу сравнения вошли 47 пациентов с дебютом острого пиелонефрита и нормальным уровнем антител IgG к SARS-CoV-2, средний возраст 7,0 года. Лабораторные исследования включали общеклинические анализы крови и мочи, биохимический анализ крови, оценку уровней прокальцитонина, микроальбумина в моче, креатинина в моче, анализ мочи по Зимницкому, бактериологическое исследование мочи, расчет скорости клубочковой фильтрации, оценку параметров коагулограммы, определение липокалина-2, ассоциированного с нейтрофильной желатиназой (NGAL), в моче.</p></sec><sec><title>Результаты</title><p>Результаты. Для пациентов, перенесших ранее COVID-19, в отличие от детей группы сравнения, в дебюте острого пиелонефрита была характерна более высокая частота развития апостематозного пиелонефрита, более значительная степень повреждения тубулоинтерстициальной ткани почек, большая частота и высокий уровень гематурии, протеинурии, чаще наблюдалась гиперфильтрация, гипостенурия, а также более выраженное повышение уровней фибриногена, С-реактивного белка, прокальцитонина и uNGAL/Cr. Показано, что почти у 50% детей с острым пиелонефритом, ранее перенесших COVID-19, сохранялся мочевой синдром при обследовании через 3–4 мес от дебюта заболевания.</p></sec><sec><title>Заключение</title><p>Заключение. Подтверждены долгосрочные эффекты воздействия вируса SARS-CoV-2 на паренхиму почек, даже у детей с бессимптомным течением заболевания. Высокий уровень uNGAL/Cr у детей с острым пиелонефритом, ранее перенесших COVID-19, который почти в 8 раз был выше, чем в группе сравнения, отражает более выраженное повреждение тубулоинтерстициальной ткани почек. Риск развития хронической болезни почек в этой группе был в 3,5 раза выше.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose</title><p>Purpose. To determine the clinical and laboratory features of the course of acute pyelonephritis in children with a history of COVID-19 and to determine the risk of developing chronic kidney disease.</p></sec><sec><title>Material and methods</title><p>Material and methods. The main cohort consisted of 36 patients with the debut of acute pyelonephritis, who had previously suffered COVID-19, the average age was 7,5 years. The comparison group included 47 patients with the onset of acute pyelonephritis and a normal level of IgG antibodies to SARS-CoV-2, the average age was 7,0 years. Laboratory tests included full blood count and urinalysis, blood biochemistry, procalcitonin, urine microalbumin, urine creatinine, Zimnitsky urine test, bacteriological urine test, glomerular filtration rate, coagulogram, and Lipocalin-2 associated with neutrophil gelatinase (NGAL) in the urine.</p></sec><sec><title>Results</title><p>Results. Patients with a history of COVID-19, at the onset of acute pyelonephritis, demonstrated a higher incidence of apostematous pyelonephritis, a higher degree of damage to the tubulointerstitial kidney tissue, a high frequency and a higher level of hematuria, proteinuria, hyperfiltration, hypostenuria, as well as a more significant increase in fibrinogen, CRP, procalcitonin, and uNGAL/Cr levels than children of the comparison group. It was shown that almost half of the children with acute pyelonephritis who had had COVID-19 retained urinary syndrome during examination 3–4 months after the onset of the disease.</p></sec><sec><title>Conclusion</title><p>Conclusion. Thus, long-term effects of the SARS-CoV-2 virus on the renal parenchyma were confirmed, even in asymptomatic children. The high level of uNGAL/Cr in children with acute pyelonephritis who had had COVID-19, which was almost 8 times higher than in the comparison group, reflects more pronounced damage to the tubulointerstitial kidney tissue. The risk of developing chronic kidney disease in this group was 3,5 times higher.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>дети</kwd><kwd>острый пиелонефрит</kwd><kwd>SARS-CoV-2</kwd><kwd>COVID-19</kwd><kwd>uNGAL</kwd></kwd-group><kwd-group xml:lang="en"><kwd>children</kwd><kwd>acute pyelonephritis</kwd><kwd>SARS-CoV-2</kwd><kwd>COVID-19</kwd><kwd>uNGAL</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">Chen J., Wang W., Tang Y., Huang X.R., Yu X., Lan H.Y. Inflammatory stress in SARS-COV-2 associated Acute Kidney Injury. Int J Biol Sci 2021; 17(6): 1497–1506. DOI: 10,7150/ijbs.58791</mixed-citation><mixed-citation xml:lang="en">Chen J., Wang W., Tang Y., Huang X.R., Yu X., Lan H.Y. Inflammatory stress in SARS-COV-2 associated Acute Kidney Injury. Int J Biol Sci 2021; 17(6): 1497–1506. DOI: 10,7150/ijbs.58791</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Perico N., Perico L., Ronco C., Remuzzi G. COVID-19 and the Kidney: Should Nephrologists Care about COVID-19 rather than Maintaining Their Focus on Renal Patients? Contrib Nephrol 2021; 199: 229–243. DOI: 10,1159/000517752</mixed-citation><mixed-citation xml:lang="en">Perico N., Perico L., Ronco C., Remuzzi G. COVID-19 and the Kidney: Should Nephrologists Care about COVID-19 rather than Maintaining Their Focus on Renal Patients? Contrib Nephrol 2021; 199: 229–243. DOI: 10,1159/000517752</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Lin L., Lu L., Cao W., Li T. Hypothesis for potential pathogenesis of SARS-CoV-2 infection — a review of immune changes in patients with viral pneumonia. Emerg Microbes Infect 2020; 9(1): 727–732. DOI: 10,1080/22221751,2020,1746199</mixed-citation><mixed-citation xml:lang="en">Lin L., Lu L., Cao W., Li T. Hypothesis for potential pathogenesis of SARS-CoV-2 infection — a review of immune changes in patients with viral pneumonia. Emerg Microbes Infect 2020; 9(1): 727–732. DOI: 10,1080/22221751,2020,1746199</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Qi F., Qian S., Zhang S., Zhang Z. Single cell RNA sequencing of 13 human tissues identify cell types and receptors of human coronaviruses. Biochem Biophys Res Commun 2020; 526:135–140. DOI: 10,1016/j.bbrc.2020.03.044</mixed-citation><mixed-citation xml:lang="en">Qi F., Qian S., Zhang S., Zhang Z. Single cell RNA sequencing of 13 human tissues identify cell types and receptors of human coronaviruses. Biochem Biophys Res Commun 2020; 526:135–140. DOI: 10,1016/j.bbrc.2020.03.044</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Malha L., Mueller F.B., Pecker M.S., Mann S.J., August P., Feig P.U. COVID‐19 and the renin‐angiotensin system. Kidney Int Rep 2020; 5: 563–565. DOI: 10,1016/j.ekir.2020.03.024</mixed-citation><mixed-citation xml:lang="en">Malha L., Mueller F.B., Pecker M.S., Mann S.J., August P., Feig P.U. COVID‐19 and the renin‐angiotensin system. Kidney Int Rep 2020; 5: 563–565. DOI: 10,1016/j.ekir.2020.03.024</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Tolouian R., Vahed S.Z., Ghiyasvand S., Tolouian A., Ardalan M. COVID‐19 interactions with angiotensin‐converting enzyme 2 (ACE2) and the kinin system; looking at a potential treatment. J Renal Inj Prev 2020; 9(2): e19. DOI: 10,34172/jrip.2020,19</mixed-citation><mixed-citation xml:lang="en">Tolouian R., Vahed S.Z., Ghiyasvand S., Tolouian A., Ardalan M. COVID‐19 interactions with angiotensin‐converting enzyme 2 (ACE2) and the kinin system; looking at a potential treatment. J Renal Inj Prev 2020; 9(2): e19. DOI: 10,34172/jrip.2020,19</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Zou X., Chen K., Zou J., Han P., Hao J., Han Z. Single-cell RNA-seq data analysis on the receptor ACE2 expression reveals the potential risk of different human organs vulnerable to 2019-nCoV infection. Front Med 2020; 14(2): 185–192. DOI: 10,1007/s11684–020–0754–0</mixed-citation><mixed-citation xml:lang="en">Zou X., Chen K., Zou J., Han P., Hao J., Han Z. Single-cell RNA-seq data analysis on the receptor ACE2 expression reveals the potential risk of different human organs vulnerable to 2019-nCoV infection. Front Med 2020; 14(2): 185–192. DOI: 10,1007/s11684–020–0754–0</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Buonaguro F.M., Ascierto P.A., Morse G.D., Buonaguro L., Puzanov I., Tornesello M.L. et al. Covid-19: Time for a paradigm change. Rev Med Virol 2020; 30(5): e2134. DOI: 10,1002/rmv.2134</mixed-citation><mixed-citation xml:lang="en">Buonaguro F.M., Ascierto P.A., Morse G.D., Buonaguro L., Puzanov I., Tornesello M.L. et al. Covid-19: Time for a paradigm change. Rev Med Virol 2020; 30(5): e2134. DOI: 10,1002/rmv.2134</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Cheng Y., Luo R., Wang K., Zhang M., Wang Z., Dong L. et al. Kidney disease is associated with in‐hospital death of patients with COVID‐19. Kidney Int 2020; 97: 829–838. DOI: 10,1016/j.kint.2020.03.005</mixed-citation><mixed-citation xml:lang="en">Cheng Y., Luo R., Wang K., Zhang M., Wang Z., Dong L. et al. Kidney disease is associated with in‐hospital death of patients with COVID‐19. Kidney Int 2020; 97: 829–838. DOI: 10,1016/j.kint.2020.03.005</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Yin W., Zhang P.L. Infectious pathways of SARS‐CoV‐2 in renal tissue. J Nephropathol 2020; 9(4): e37. DOI: 10,34172/jnp.2020,37</mixed-citation><mixed-citation xml:lang="en">Yin W., Zhang P.L. Infectious pathways of SARS‐CoV‐2 in renal tissue. J Nephropathol 2020; 9(4): e37. DOI: 10,34172/jnp.2020,37</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Soleimani M. Acute kidney injury in SARS‐CoV‐2 infection: direct effect of virus on kidney proximal tubule cells. Int J Mol Sci 2020; 21(9): 3275. DOI: 10,3390/ijms21093275</mixed-citation><mixed-citation xml:lang="en">Soleimani M. Acute kidney injury in SARS‐CoV‐2 infection: direct effect of virus on kidney proximal tubule cells. Int J Mol Sci 2020; 21(9): 3275. DOI: 10,3390/ijms21093275</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Chu K.H., Tsang W.K., Tang C.S., Lam M.F., Lai F.M., To K.F. et al. Acute renal impairment in coronavirus‐associated severe acute respiratory syndrome. Kidney Int 2005; 67: 698–705. DOI: 10,1111/j.1523–1755,2005,67130.x</mixed-citation><mixed-citation xml:lang="en">Chu K.H., Tsang W.K., Tang C.S., Lam M.F., Lai F.M., To K.F. et al. Acute renal impairment in coronavirus‐associated severe acute respiratory syndrome. Kidney Int 2005; 67: 698–705. DOI: 10,1111/j.1523–1755,2005,67130.x</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Diao B., Wen K., Chen J., Liu Y., Yuan Z., Han C. et al. Diagnosis of acute respiratory syndrome coronavirus 2 infection by detection of nucleocapsid protein. medRxiv. 2020. DOI: 10,1101/2020.03.07,20032524</mixed-citation><mixed-citation xml:lang="en">Diao B., Wen K., Chen J., Liu Y., Yuan Z., Han C. et al. Diagnosis of acute respiratory syndrome coronavirus 2 infection by detection of nucleocapsid protein. medRxiv. 2020. DOI: 10,1101/2020.03.07,20032524</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Reich H.N., Oudit G.Y., Penninger J.M., Scholey J.W., Herzenberg A.M. Decreased glomerular and tubular expression of ACE2 in patients with type 2 diabetes and kidney disease. Kidney Int 2008; 74: 1610–1616. DOI: 10,1038/ki.2008,497</mixed-citation><mixed-citation xml:lang="en">Reich H.N., Oudit G.Y., Penninger J.M., Scholey J.W., Herzenberg A.M. Decreased glomerular and tubular expression of ACE2 in patients with type 2 diabetes and kidney disease. Kidney Int 2008; 74: 1610–1616. DOI: 10,1038/ki.2008,497</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Soler M.J., Wysocki J., Batlle D. ACE2 alterations in kidney disease. Nephrol Dial Transpl 2013; 28: 2687–2697. DOI: 10,1093/ndt/gft320</mixed-citation><mixed-citation xml:lang="en">Soler M.J., Wysocki J., Batlle D. ACE2 alterations in kidney disease. Nephrol Dial Transpl 2013; 28: 2687–2697. DOI: 10,1093/ndt/gft320</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Выхристенко Л.Р., Счастливенко А.И., Бондарева Л.И. Сидоренко Е.В., Музыка О.Г. Поражение почек при инфекции COVID-19. Вестник ВГМУ 2021; 1: 7–23.</mixed-citation><mixed-citation xml:lang="en">Vyhristenko L.R., Schastlivenko A.I., Bondareva L.I. Sidorenko E.V., Muzyka O.G. Kidney damage in COVID-19 infection. Vestnik VGMU 2021; 1: 7–23. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Barros Camargo L., Quintero Marzola I.D., Cárdenas Gómez J.C., Mendoza Daza L.T., Quintana Pájaro L. Acute kidney injury associated with COVID-19: another extrapulmonary manifestation. Int Urol Nephrol 2020; 52(7): 1403– 1404. DOI: 10,1007/s11255–020–02507-w</mixed-citation><mixed-citation xml:lang="en">Barros Camargo L., Quintero Marzola I.D., Cárdenas Gómez J.C., Mendoza Daza L.T., Quintana Pájaro L. Acute kidney injury associated with COVID-19: another extrapulmonary manifestation. Int Urol Nephrol 2020; 52(7): 1403– 1404. DOI: 10,1007/s11255–020–02507-w</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Smeeth L., Thomas S.L., Hall A.J., Hubbard R., Farrington P., Vallance P. Risk of myocardial infarction and stroke after acute infection or vaccination. N Engl J Med 2004; 351: 2611–2618. DOI: 10,1056/NEJMoa041747</mixed-citation><mixed-citation xml:lang="en">Smeeth L., Thomas S.L., Hall A.J., Hubbard R., Farrington P., Vallance P. Risk of myocardial infarction and stroke after acute infection or vaccination. N Engl J Med 2004; 351: 2611–2618. DOI: 10,1056/NEJMoa041747</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Yazıcıoğlu B., Bakkaloğlu S.A. European Society for Pediatric Nephrology. Impact of coronavirus disease-2019 on pediatric nephrology practice and education: an ESPN survey. Pediatr Nephrol. Pediatr Nephrol 2021. Online ahead of print. DOI: 10,1007/s00467–021–05226–1</mixed-citation><mixed-citation xml:lang="en">Yazıcıoğlu B., Bakkaloğlu S.A. European Society for Pediatric Nephrology. Impact of coronavirus disease-2019 on pediatric nephrology practice and education: an ESPN survey. Pediatr Nephrol. Pediatr Nephrol 2021. Online ahead of print. DOI: 10,1007/s00467–021–05226–1</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Zimmermann H., Curtis N. Coronavirus infections in children including Covid-19: an overview of the epidemiology, clinical features, diagnosis, treatment and prevention options in children. Pediatr Infect Dis J 2020; 39: 355–368. DOI: 10,1097/INF.0000000000002660</mixed-citation><mixed-citation xml:lang="en">Zimmermann H., Curtis N. Coronavirus infections in children including Covid-19: an overview of the epidemiology, clinical features, diagnosis, treatment and prevention options in children. Pediatr Infect Dis J 2020; 39: 355–368. DOI: 10,1097/INF.0000000000002660</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Садыкова Д.И., Халиуллина С.В., Анохин В.А., Зиатдинов А.И., Сенек С.А., Самойлова Н.В. и др. Клинические проявления новой коронавирусной инфекции (COVID-19) у детей, госпитализированных в стационар. Российский вестник перинатологии и педиатрии 2021; 66(5): 88–96. DOI: 10,21508/1027–4065–2021–66–5–88–96</mixed-citation><mixed-citation xml:lang="en">Sadykova D.I., Khaliullina S.V., Anokhin V.A., Ziatdinov A.I., Senek S.A., Samoylova N.V. et al. Clinical manifestations of new coronavirus infection (COVID-19) in children admitted to hospital. Rossiyskiy Vestnik Perinatologii i Pediatrii 2021; 66(5): 88–96. (in Russ.) DOI: 10,21508/1027–4065–2021–66–5–88–96</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">European Association of Urology. Guidelines on Urological Infections. http://www.uroweb.org. Ссылка активна на 19.02.2022</mixed-citation><mixed-citation xml:lang="en">European Association of Urology. Guidelines on Urological Infections. http://www.uroweb.org. Ссылка активна на 19.02.2022</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Li Z., Yi Y., Luo X., Xiong N., Liu Y., Li S. et al. Development and Clinical Application of a Rapid IgM-IgG Combined Antibody Test for SARSCoV-2 Infection Diagnosis. J Med Virol 2020; 92(9): 1518–1524. DOI: 10,1002/jmv.25727</mixed-citation><mixed-citation xml:lang="en">Li Z., Yi Y., Luo X., Xiong N., Liu Y., Li S. et al. Development and Clinical Application of a Rapid IgM-IgG Combined Antibody Test for SARSCoV-2 Infection Diagnosis. J Med Virol 2020; 92(9): 1518–1524. DOI: 10,1002/jmv.25727</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Martinez-Rojas M.A., Vega-Vega O., Bobadilla N.A. Is the kidney a target of SARS-CoV-2? Am J Physiol Renal Physiol 2020; 318(6): F1454–F1462. DOI: 10,1152/ajprenal.00160,2020</mixed-citation><mixed-citation xml:lang="en">Martinez-Rojas M.A., Vega-Vega O., Bobadilla N.A. Is the kidney a target of SARS-CoV-2? Am J Physiol Renal Physiol 2020; 318(6): F1454–F1462. DOI: 10,1152/ajprenal.00160,2020</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Wysocki J., Schulze A., Batlle D. Novel Variants of Angioten sin Converting Enzyme-2 of Shorter Molecular Size to Target the Kidney Renin Angiotensin System. Biomolecules 2019; 9(12): 886. DOI: 10,3390/biom9120886</mixed-citation><mixed-citation xml:lang="en">Wysocki J., Schulze A., Batlle D. Novel Variants of Angioten sin Converting Enzyme-2 of Shorter Molecular Size to Target the Kidney Renin Angiotensin System. Biomolecules 2019; 9(12): 886. DOI: 10,3390/biom9120886</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Werion A., Belkhir L., Perrot M., Schmit G., Aydin S., Chen Z. et al. Cliniques universitaires Saint-Luc (CUSL) COVID-19 Research Group. SARS-CoV-2 causes a specific dysfunction of the kidney proximal tubule. Kidney Int 2020; 98(5): 1296– 1307. DOI: 10,1016/j.kint.2020.07.019</mixed-citation><mixed-citation xml:lang="en">Werion A., Belkhir L., Perrot M., Schmit G., Aydin S., Chen Z. et al. Cliniques universitaires Saint-Luc (CUSL) COVID-19 Research Group. SARS-CoV-2 causes a specific dysfunction of the kidney proximal tubule. Kidney Int 2020; 98(5): 1296– 1307. DOI: 10,1016/j.kint.2020.07.019</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Еремеева А.В., Длин В.В., Корсунский А.А., Зайкова Н.М., Бондаренко Е.Д., Турина И.Е. Клинико-диагностическое значение определения липокалина-2, ассоциированного с нейтрофильной желатиназой (UNGAL), в моче у детей с дебютом пиелонефрита. Педиатрия 2018; 97(5): 27–35. DOI: 10,24110/0031–403X-2018–97–5–27–35</mixed-citation><mixed-citation xml:lang="en">Yeremeyeva A.V., Dlin V.V., Korsunskiy A.A., Zaykova N.M., Bondarenko E.D., Turina I.E. Clinical diagnosis of lipocalin 2 detection associated with neutrophil gelatinase (UNGAL) in urine in children with pyelonephritis debut. Pediatria 2018; 97(5): 27–35. (in Russ.) DOI: 10,24110/0031–403X-2018–97–5–27–35</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Varga Z., Flammer A.J., Steiger P., Haberecker M., Andermatt R., Zinkernagel A.S. et al. Endothelial cell infection and endotheliitis in COVID-19. Lancet 2020; 395 (10234): 1417– 1418. DOI: 10,1016/S0140–6736(20)30937–5</mixed-citation><mixed-citation xml:lang="en">Varga Z., Flammer A.J., Steiger P., Haberecker M., Andermatt R., Zinkernagel A.S. et al. Endothelial cell infection and endotheliitis in COVID-19. Lancet 2020; 395 (10234): 1417– 1418. DOI: 10,1016/S0140–6736(20)30937–5</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>
