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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Kazan medical journal</journal-id><journal-title-group><journal-title xml:lang="en">Kazan medical journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Казанский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0368-4814</issn><issn publication-format="electronic">2587-9359</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">62010</article-id><article-id pub-id-type="doi">10.17816/kazmj62010</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Diagnostic value of intraduodenal pH-metry in duodenal ulcer</article-title><trans-title-group xml:lang="ru"><trans-title>Диагностическое значение интрадуоденальной pH-метрии при язвенной болезни двенадцатиперстной кишки</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Alekseeva</surname><given-names>N. K.</given-names></name><name xml:lang="ru"><surname>Алексеева</surname><given-names>Н. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>info@eco-vector.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Izhevsk Medical Institute</institution></aff><aff><institution xml:lang="ru">Ижевский медицинский институт</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="1982-06-15" publication-format="electronic"><day>15</day><month>06</month><year>1982</year></pub-date><volume>63</volume><issue>3</issue><issue-title xml:lang="ru"/><fpage>26</fpage><lpage>27</lpage><history><date date-type="received" iso-8601-date="2021-02-26"><day>26</day><month>02</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-02-26"><day>26</day><month>02</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 1982, Alekseeva N.K.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 1982, Алексеева Н.К.</copyright-statement><copyright-year>1982</copyright-year><copyright-holder xml:lang="en">Alekseeva N.K.</copyright-holder><copyright-holder xml:lang="ru">Алексеева Н.К.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by-nc-sa/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://kazanmedjournal.ru/kazanmedj/article/view/62010">https://kazanmedjournal.ru/kazanmedj/article/view/62010</self-uri><abstract xml:lang="en"><p>The duration of duodenum acidification was studied in patients with duodenal ulcer, depending on the age, duration of the disease and the presence of concomitant pathology on the part of the biliary system. Significant violations of acid-neutralizing function were revealed in the early stages of the disease and with concomitant lesions of the biliary tract. The use of diadynamic currents has a positive effect on the acid-neutralizing function of the duodenum.</p></abstract><trans-abstract xml:lang="ru"><p>Изучена продолжительность закисления дуоденум у больных язвенной болезнью двенадцатиперстной кишки в зависимости от возраста, давности заболевания и наличия сопутствующей патологии со стороны желчевыделительной системы. Выявлены выраженные нарушения кислотонейтрализующей функции в ранниесроки заболевания и при сопутствующих поражениях желчных путей. Применение диадинамических токов оказывает положительное влияние на кислотонейтрализующую функцию дуоденум.</p></trans-abstract><kwd-group xml:lang="en"><kwd>duodenum</kwd><kwd>peptic ulcer</kwd><kwd>pH meter</kwd><kwd>Kazan Medical archiv</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>двенадцатиперстная кишка</kwd><kwd>язвенная болезнь</kwd><kwd>рН-метрия</kwd><kwd>Казанский медицинский архив</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Алексеев Н. К. Врач, дело, 1978, 12.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Бернар П. Д. В кн.: Диадинамическая терапия. М., Медицина, 1961.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Горшков В. А., Броун Л. М., Гончаров Е. Ф. Тер. арх., 1977, 10.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Гройсман С. Д., Бегека А. Д. Физиол. журн. 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