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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">rosped</journal-id><journal-title-group><journal-title xml:lang="ru">Российский педиатрический журнал имени М.Я. Студеникина</journal-title><trans-title-group xml:lang="en"><trans-title>M.Ya. Studenikin Russian Pediatric Journal</trans-title></trans-title-group></journal-title-group><publisher><publisher-name>ФГАУ «НМИЦ здоровья детей» Минздрава России</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.46563/1560-9561-2025-28-3-176-180</article-id><article-id custom-type="edn" pub-id-type="custom">tpwwbv</article-id><article-id custom-type="elpub" pub-id-type="custom">rosped-1646</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>Изменения активности Helicobacter pylori-ассоциированного гастрита у школьников с гастроэзофагеальной рефлюксной болезнью</article-title><trans-title-group xml:lang="en"><trans-title>Changes in the activity of Helicobacter pylori-associated gastritis in schoolchildren with gastroesophageal reflux disease</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3842-9147</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поливанова</surname><given-names>Тамара Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Polivanova</surname><given-names>Tamara V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор мед. наук, гл. науч. сотр. клинического отделения патологии пищеварительной системы у взрослых и детей «НИИ медицинских проблем Севера» — обособленное подразделение ФГБНУ ФИЦ «Красноярский научный центр СО РАН»; проф. каф. патологической физиологии ФГБОУ ВО «Красноярский государственный медицинский университет им. проф. В.Ф. Войно-Ясенецкого» Минздрава России</p><p>e-mail: tamara-polivanova@yandex.ru</p></bio><bio xml:lang="en"><p>MD, PhD, DSc, Chief scientist, Clinical division of digestive system pathology in adults and children, Federal Research Center «Krasnoyarsk Science Center» of the Siberian Branch of the Russian Academy of Sciences — Scientific Research Institute for Medical Problems of the North, Krasnoyarsk, 660022, Russian Federation; prof. of the Department of pathological physiology of the Krasnoyarsk State Medical University named after Professor V.F. Voyno-Yasenetsky, Krasnoyarsk, 660022, Russian Federation</p><p>e-mail: tamara-polivanova@yandex.ru</p></bio><email xlink:type="simple">tamara-polivanova@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/0000-0001-9834-3076</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ахметшин</surname><given-names>Тимур Нуристанович</given-names></name><name name-style="western" xml:lang="en"><surname>Ahmetshin</surname><given-names>Timur N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Врач-педиатр, «НИИ медицинских проблем Севера» — обособленное подразделение ФГБНУ ФИЦ «Красноярский научный центр» СО РАН</p><p>e-mail: a-thim@mail.ru</p></bio><email xlink:type="simple">a-thim@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Селютина</surname><given-names>Галина Васильевна</given-names></name><name name-style="western" xml:lang="en"><surname>Selyutina</surname><given-names>Galina V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Руководитель Фармацевтического колледжа ФГБОУ ВО «Красноярский государственный медицинский университет им. проф. В.Ф. Войно-Ясенецкого»</p><p>e-mail: krasfarm@mail.ru</p></bio><email xlink:type="simple">krasfarm@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1410-8747</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вшивков</surname><given-names>Виталий Алексеевич</given-names></name><name name-style="western" xml:lang="en"><surname>Vshivkov</surname><given-names>Vitaliy A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. мед. наук, ст. науч. сотр. клинического отделения патологии пищеварительной системы у взрослых и детей «НИИ медицинских проблем Севера» — обособленное подразделение ФГБНУ ФИЦ «Красноярский научный центр» СО РАН</p><p>e-mail: vitali1983@mail.ru</p></bio><email xlink:type="simple">vitali1983@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>«Научно-исследовательский институт медицинских проблем Севера» — обособленное подразделение ФГБНУ Федеральный исследовательский центр «Красноярский научный центр» Сибирского отделения Российской академии наук; ФГБОУ ВО «Красноярский государственный медицинский университет им. проф. В.Ф. Войно-Ясенецкого» Минздрава России</institution></aff><aff xml:lang="en"><institution>Scientific Research Institute for Medical Problems of the North of the Federal Research Center «Krasnoyarsk Scientific Center» Siberian Division of Russian Academy of Sciences; Professor V.F. Voyno-Yasenetsky Krasnoyarsk State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>«Научно-исследовательский институт медицинских проблем Севера» — обособленное подразделение ФГБНУ Федеральный исследовательский центр «Красноярский научный центр» Сибирского отделения Российской академии наук</institution></aff><aff xml:lang="en"><institution>Scientific Research Institute for Medical Problems of the North of the Federal Research Center «Krasnoyarsk Scientific Center» Siberian Division of Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>20</day><month>07</month><year>2025</year></pub-date><volume>28</volume><issue>3</issue><fpage>176</fpage><lpage>180</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Поливанова Т.В., Ахметшин Т.Н., Селютина Г.В., Вшивков В.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Поливанова Т.В., Ахметшин Т.Н., Селютина Г.В., Вшивков В.А.</copyright-holder><copyright-holder xml:lang="en">Polivanova T.V., Ahmetshin T.N., Selyutina G.V., Vshivkov V.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.rosped.ru/jour/article/view/1646">https://www.rosped.ru/jour/article/view/1646</self-uri><abstract><p>Актуальность анализа функциональных расстройств желудочно-кишечного тракта (ЖКТ) у детей в значительной мере обусловлена возможностью ранней профилактики тяжёлых форм его патологии.</p><sec><title>Цель работы</title><p>Цель работы: определить изменения активности Helicobacter pylori-ассоциированного гастрита у школьников с гастроэзофагеальной рефлюксной болезнью (ГЭРБ).</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Обследовано 1079 детей в возрасте 7–17 лет. У всех детей были определены клинические проявления патологии ЖКТ. Эндоскопическое обследование верхних отделов ЖКТ с биопсией слизистой оболочки желудка проведено 115 школьникам с гастроэнтерологическими жалобами. Морфологическую диагностику гастрита и инфицирования H. pylori выполняли в соответствии с модифицированной Сиднейской классификацией. Сформированы две группы обследуемых в зависимости от наличия ГЭРБ (34 школьника с ГЭРБ и 81 ребёнок без патологии), которая диагностирована в соответствии с детским консенсусом. Значимость различий признаков анализировали с помощью критерия χ2 Пирсона. Различия считали значимыми при p &lt; 0,05.</p></sec><sec><title>Результаты</title><p>Результаты. У обследованных школьников преобладал гастрит 1 степени активности как в антральном отделе, так и, чаще, в слизистой оболочке тела желудка. При этом не установлено изменений активности гастрита в обоих отделах желудка у детей в зависимости от наличия ГЭРБ. Гастрит, ассоциированный с инфекцией H. pylori, среди обследованных определялся у 53,8% детей с ГЭРБ и у 58,7% без ГЭРБ (р = 0,672). У H. pylori-позитивных детей выявлено увеличение активности гастрита. У инфицированных H. pylori детей с ГЭРБ не отмечено значимого увеличения активности воспалительного процесса в обоих отделах желудка. Однако у H. pylori-позитивных школьников без ГЭРБ как в антральном отделе, так и в теле желудка наблюдалось усиление активности гастрита (р = 0,038), прежде всего выраженное у младших школьников (р = 0,044) и тувинцев (р = 0,039).</p></sec><sec><title>Заключение</title><p>Заключение. Повышение активности воспаления в слизистой оболочке желудка у школьников, независимо от наличия клинических проявлений ГЭРБ, наблюдается при гастрите, ассоциированном с инфекцией H. pylori.</p></sec><sec><title>Участие авторов</title><p>Участие авторов: Поливанова Т.В. — концепция и дизайн исследования; Поливанова Т.В., Ахметшин Т.Н., Селютина Г.В., Вшивков В.А. — сбор и обработка материала; Вшивков В.А. — статистическая обработка; Поливанова Т.В. — написание текста;Поливанова Т.В., Ахметшин Т.Н., Вшивков В.А. — редактирование. Все соавторы — утверждение окончательного варианта статьи, ответственность за целостность всех частей статьи.</p></sec><sec><title>Финансирование</title><p>Финансирование. Исследование не имело финансовой поддержки.</p></sec><sec><title>Конфликт интересов</title><p>Конфликт интересов. Авторы заявляют об отсутствии конфликта интересов. </p></sec><sec><title>Поступила 17</title><p>Поступила 17.04.2025Принята к печати 20.05.2025Опубликована 27.06.2025</p></sec></abstract><trans-abstract xml:lang="en"><p>The relevance of the analysis of functional disorders of the gastrointestinal tract in children is largely due to the possibility of early prevention of severe forms of its pathology.</p><p>The aim of the study was to determine changes in the activity of Helicobacter pylori-associated gastritis in schoolchildren with gastroesophageal reflux disease (GERD).</p><sec><title>Materials and methods</title><p>Materials and methods. One thousand seventy nine children aged of 7–17 years were examined. Clinical manifestations of gastrointestinal pathology were identified in all children. An endoscopic examination of the upper gastrointestinal tract with a biopsy of the gastric mucosa was performed in 115 schoolchildren with gastroenterological complaints. Morphological diagnosis of gastritis and H. pylori infection was GERD (34 schoolchildren with GERD and 81 child without pathology), which was diagnosed in accordance with the children’s consensus. The significance of the feature differences was analyzed using the Pearson χ2 criterion. The differences were considered to be significant at p &lt; 0.05.</p></sec><sec><title>Results</title><p>Results. The examined schoolchildren had gastritis of the 1st degree of activity, both in the antrum and even more often in the mucous membrane of the stomach body. At the same time, there were no changes in the activity of gastritis in both parts of the stomach in children, depending on the presence of GERD. Gastritis associated with H. pylori infection was detected in 53.8% of GERD children and 58.7% of cases without GERD (p = 0.672). In H. pylori-positive children, an increase in gastritis activity was detected. In infected with H. pylori children with GERD, there was no significant increase in the activity of the inflammatory process in both parts of the stomach. However, in H. pylori-positive schoolchildren without GERD, both in the antrum and in the stomach, increased gastritis activity was observed (p = 0.038), primarily expressed in younger schoolchildren (p = 0.044) and Tuvinians (p = 0.039).</p></sec><sec><title>Conclusion</title><p>Conclusion. An increase in the activity of inflammation in the gastric mucosa in schoolchildren, regardless of the presence of clinical manifestations of GERD, is observed in gastritis associated with H. pylori infection.</p></sec><sec><title>Contribution</title><p>Contribution: Polivanova T.V. — concept and design of the study; Polivanova T.V., Akhmetshin T.N., Selyutina G.V., Vshivkov V.A. — data collection and processing; Vshivkov V.A. — statistical processing of the data; Polivanova T.V. — writing the text; Polivanova T.V., Akhmetshin T.N., Vshivkov V.A. — editing the text. All co-authors — approval of the final version of the article, responsibility for the integrity of all parts of the article.</p></sec><sec><title>Acknowledgment</title><p>Acknowledgment. The study had no sponsorship.</p></sec><sec><title>Conflict of interest</title><p>Conflict of interest. The authors declare no conflict of interest.</p></sec><sec><title>Received</title><p>Received: April 17, 2025Accepted: May 20, 2025Published: June 27, 2025</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>школьники</kwd><kwd>гастрит</kwd><kwd>активность болезни</kwd><kwd>гастроэзофагеальная рефлюксная болезнь</kwd><kwd>Helicobacter pylori</kwd></kwd-group><kwd-group xml:lang="en"><kwd>schoolchildren</kwd><kwd>gastritis</kwd><kwd>disease activity</kwd><kwd>gastroesophageal reflux disease</kwd><kwd>H. pylori</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">He J., Hu W., Ouyang Q., Zhang S., He L., Chen W., et al. Helicobacter pylori infection induces stem cell-like properties in Correa cascade of gastric cancer. Cancer Lett. 2022; 542: 215764. https://doi.org/10.1016/j.canlet.2022.215764</mixed-citation><mixed-citation xml:lang="en">He J., Hu W., Ouyang Q., Zhang S., He L., Chen W., et al. Helicobacter pylori infection induces stem cell-like properties in Correa cascade of gastric cancer. Cancer Lett. 2022; 542: 215764. https://doi.org/10.1016/j.canlet.2022.215764</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Tack J., Pandolfino J.E. Pathophysiology of gastroesophageal reflux disease. Gastroenterology. 2018; 154(2): 277–88. https://doi.org/10.1053/j.gastro.2017.09.047</mixed-citation><mixed-citation xml:lang="en">Tack J., Pandolfino J.E. Pathophysiology of gastroesophageal reflux disease. Gastroenterology. 2018; 154(2): 277–88. https://doi.org/10.1053/j.gastro.2017.09.047</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Uhlenhopp D.J., Then E.O., Sunkara T., Gaduputi V. Epidemiology of esophageal cancer: update in global trends, etiology and risk factors. Clin. J. Gastroenterol. 2020; 13(6): 1010–121. https://doi.org/10.1007/s12328-020-01237-x</mixed-citation><mixed-citation xml:lang="en">Uhlenhopp D.J., Then E.O., Sunkara T., Gaduputi V. Epidemiology of esophageal cancer: update in global trends, etiology and risk factors. Clin. J. Gastroenterol. 2020; 13(6): 1010–121. https://doi.org/10.1007/s12328-020-01237-x</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Smyth E.C., Nilsson M., Grabsch H.I., van Grieken N.C., Lordick F. Gastric cancer. Lancet. 2020; 396(10251): 635–48. https://doi.org/10.1016/S0140-6736(20)31288-5</mixed-citation><mixed-citation xml:lang="en">Smyth E.C., Nilsson M., Grabsch H.I., van Grieken N.C., Lordick F. Gastric cancer. Lancet. 2020; 396(10251): 635–48. https://doi.org/10.1016/S0140-6736(20)31288-5</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Каспаров Э.В., Поливанова Т.В., Вшивков В.А. Гастроэзофагеальная рефлюксная болезнь и эрозивно-язвенные поражения гастродуоденальной зоны у школьников Сибири различного возраста. Российский журнал гастроэнтерологии, гепатологии, колопроктологии. 2019; 29(4): 22–9. https://doi.org/10.22416/1382-4376-2019-29-4-22-29 https://elibrary.ru/axmacu</mixed-citation><mixed-citation xml:lang="en">Kasparov E.V., Polivanova T.V., Vshivkov V.A. Gastroesophageal reflux disease and erosive-ulcerative lesions of the gastroduodenal zone in schoolchildren of various ages in Siberia. Rossiyskiy zhurnal gastroenterologii, gepatologii, koloproktologii. 2019; 29(4): 22–9. https://doi.org/10.22416/1382-4376-2019-29-4-22-29 https://elibrary.ru/axmacu (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Mousa H., Hassan M. Gastroesophageal reflux disease. Pediatr. Clin. North Am. 2017; 64(3): 487–505. https://doi.org/10.1016/j.pcl.2017.01.003</mixed-citation><mixed-citation xml:lang="en">Mousa H., Hassan M. Gastroesophageal reflux disease. Pediatr. Clin. North Am. 2017; 64(3): 487–505. https://doi.org/10.1016/j.pcl.2017.01.003</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Sintusek P., Mutalib M., Thapar N. Gastroesophageal reflux disease in children: What’s new right now? World J. Gastrointest. Endosc. 2023; 15(3): 84–102. https://doi.org/10.4253/wjge.v15.i3.84</mixed-citation><mixed-citation xml:lang="en">Sintusek P., Mutalib M., Thapar N. Gastroesophageal reflux disease in children: What’s new right now? World J. Gastrointest. Endosc. 2023; 15(3): 84–102. https://doi.org/10.4253/wjge.v15.i3.84</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Xie L., Liu G.W., Liu Y.N., Li P.Y., Hu X.N., He X.Y., et al. Prevalence of Helicobacter pylori infection in China from 2014–2023: A systematic review and meta-analysis. World J. Gastroenterol. 2024; 30(43): 4636–56. https://doi.org/10.3748/wjg.v30.i43.4636</mixed-citation><mixed-citation xml:lang="en">Xie L., Liu G.W., Liu Y.N., Li P.Y., Hu X.N., He X.Y., et al. Prevalence of Helicobacter pylori infection in China from 2014–2023: A systematic review and meta-analysis. World J. Gastroenterol. 2024; 30(43): 4636–56. https://doi.org/10.3748/wjg.v30.i43.4636</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Alzahrani M.A., AlQahtani S.J., Alqahtani M.S., Asiri H.M., Abudasir A.M., Alshahrani K.T., et al. Knowledge, attitudes, and practices of adults in the Kingdom of Saudi Arabia regarding Helicobacter pylori-induced gastric ulcers, cancers, and treatment. J. Med. Life. 2024; 17(5): 523–9. https://doi.org/10.25122/jml-2023-0536</mixed-citation><mixed-citation xml:lang="en">Alzahrani M.A., AlQahtani S.J., Alqahtani M.S., Asiri H.M., Abudasir A.M., Alshahrani K.T., et al. Knowledge, attitudes, and practices of adults in the Kingdom of Saudi Arabia regarding Helicobacter pylori-induced gastric ulcers, cancers, and treatment. J. Med. Life. 2024; 17(5): 523–9. https://doi.org/10.25122/jml-2023-0536</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Karim M.R., Alam M.S., Islam A., Malek M.S., Ahsan M.S, Mia E., et al. Association of Helicobacter pylori infection with functional dyspepsia. Mymensingh. Med. J. 2025; 34(1): 74–8.</mixed-citation><mixed-citation xml:lang="en">Karim M.R., Alam M.S., Islam A., Malek M.S., Ahsan M.S, Mia E., et al. Association of Helicobacter pylori infection with functional dyspepsia. Mymensingh. Med. J. 2025; 34(1): 74–8.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Sugimoto M., Murata M., Mizuno H., Iwata E., Nagata N., Itoi T., et al. Endoscopic reflux esophagitis and reflux-related symptoms after Helicobacter pylori eradication therapy: Meta-analysis. J. Clin. Med. 2020; 9(9): 3007. https://doi.org/10.3390/jcm9093007</mixed-citation><mixed-citation xml:lang="en">Sugimoto M., Murata M., Mizuno H., Iwata E., Nagata N., Itoi T., et al. Endoscopic reflux esophagitis and reflux-related symptoms after Helicobacter pylori eradication therapy: Meta-analysis. J. Clin. Med. 2020; 9(9): 3007. https://doi.org/10.3390/jcm9093007</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Niknam R., Lankarani K.B., Moghadami M., Taghavi S.A., Zahiri L., Fallahi M.J. The association between Helicobacter pylori infection and erosive gastroesophageal reflux disease; a cross-sectional study. BMC Infect. Dis. 2022; 22(1): 267. https://doi.org/10.1186/s12879-022-07278-6</mixed-citation><mixed-citation xml:lang="en">Niknam R., Lankarani K.B., Moghadami M., Taghavi S.A., Zahiri L., Fallahi M.J. The association between Helicobacter pylori infection and erosive gastroesophageal reflux disease; a cross-sectional study. BMC Infect. Dis. 2022; 22(1): 267. https://doi.org/10.1186/s12879-022-07278-6</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Аксель Е.М. Статистика злокачественных новообразований желудочно-кишечного тракта. Сибирский онкологический журнал. 2017; 16(3): 5–11. https://doi.org/10.21294/1814-4861-2017-3-5-11 https://elibrary.ru/wofabw</mixed-citation><mixed-citation xml:lang="en">Axel E.M. Gastrointestinal cancer statistics. Sibirskiy onkologicheskiy zhurnal. 2017; 16(3): 5–11. https://doi.org/10.21294/1814-4861-2017-3-5-11 https://elibrary.ru/wofabw (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Nobakht H., Boghratian A., Sohrabi M., Panahian M., Rakhshani N., Nikkhah M., et al. Association between pattern of gastritis and gastroesophageal reflux disease in patients with Helicobacter pylori infection. Middle East J. Dig. Dis. 2016; 8(3): 206–11. https://doi.org/10.15171/mejdd.2016.33</mixed-citation><mixed-citation xml:lang="en">Nobakht H., Boghratian A., Sohrabi M., Panahian M., Rakhshani N., Nikkhah M., et al. Association between pattern of gastritis and gastroesophageal reflux disease in patients with Helicobacter pylori infection. Middle East J. Dig. Dis. 2016; 8(3): 206–11. https://doi.org/10.15171/mejdd.2016.33</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Поливанова Т.В., Каспаров Э.В., Вшивков В.А. Возрастные особенности активности гастрита у школьников с гастроэзофагеальной рефлюксной болезнью. Российский педиатрический журнал. 2022; 25(2): 116–20. https://doi.org/10.46563/1560-9561-2022-25-2-116-120 https://elibrary.ru/cmqpxj</mixed-citation><mixed-citation xml:lang="en">Polivanova T.V., Kasparov E.V., Vshivkov V.A. Age-related features of gastritis activity in schoolchildren with gastroesophageal reflux disease. Rossiyskiy pediatricheskiy zhurnal. 2022; 25(2): 116–20. https://doi.org/10.46563/1560-9561-2022-25-2-116-120 https://elibrary.ru/cmqpxj (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Sherman P.M., Hassall E., Fagundes-Neto U., Gold B.D., Kato S., Koletzko S., et al. A global, evidence-based consensus on the definition of gastroesophageal reflux disease in the pediatric population. Am. J. Gastroenterol. 2009; 104(5): 1278–95. https://doi.org/10.1038/ajg.2009.129</mixed-citation><mixed-citation xml:lang="en">Sherman P.M., Hassall E., Fagundes-Neto U., Gold B.D., Kato S., Koletzko S., et al. A global, evidence-based consensus on the definition of gastroesophageal reflux disease in the pediatric population. Am. J. Gastroenterol. 2009; 104(5): 1278–95. https://doi.org/10.1038/ajg.2009.129</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Dixon M.F., Genta R.M., Yardley J.H., Correa P. Histological classification of gastritis and Helicobacter pylori infection: an agreement at last? The International Workshop on the Histopathology of Gastritis. Helicobacter. 1997; 2(1): S17–24. https://doi.org/10.1111/j.1523-5378.1997.06b09.x</mixed-citation><mixed-citation xml:lang="en">Dixon M.F., Genta R.M., Yardley J.H., Correa P. Histological classification of gastritis and Helicobacter pylori infection: an agreement at last? The International Workshop on the Histopathology of Gastritis. Helicobacter. 1997; 2(1): S17–24. https://doi.org/10.1111/j.1523-5378.1997.06b09.x</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Schulz C., Kupčinskas J. Review – Helicobacter pylori and non-malignant upper gastro-intestinal diseases. Helicobacter. 2020; 25(1): e12738. https://doi.org/10.1111/hel.12738</mixed-citation><mixed-citation xml:lang="en">Schulz C., Kupčinskas J. Review – Helicobacter pylori and non-malignant upper gastro-intestinal diseases. Helicobacter. 2020; 25(1): e12738. https://doi.org/10.1111/hel.12738</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>
