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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Almanac of Clinical Medicine</journal-id><journal-title-group><journal-title xml:lang="en">Almanac of Clinical Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Альманах клинической медицины</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2072-0505</issn><issn publication-format="electronic">2587-9294</issn><publisher><publisher-name xml:lang="en">Moscow Regional Research and Clinical Institute (MONIKI)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">789</article-id><article-id pub-id-type="doi">10.18786/2072-0505-2018-46-2-109-117</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Age-related changes in production of short-chain fatty acids by gut microbiome in patients without gastroenterological diseases</article-title><trans-title-group xml:lang="ru"><trans-title>Возрастная динамика продукции короткоцепочечных жирных кислот кишечной микробиотой у пациентов, не имеющих гастроэнтерологических заболеваний</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zatevalov</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Затевалов</surname><given-names>А. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Alexander M. Zatevalov – PhD, Doctor of Biol. Sci., Chief Research Fellow, Laboratory of Diagnosis and Prevention of Infectious Diseases.</p><p>11–5 Detskaya ul., Zheleznodorozhny town, Moscow Region, 143985, Russian Federation, tel.: +7 (905) 714 91 14</p></bio><bio xml:lang="ru"><p>Затевалов Александр Михайлович – доктор биологических наук, главный научный сотрудник  лаборатории диагностики и профилактики инфекционных заболеваний.</p><p>143985, Московская область, Балашиха, мкр. Саввино, ул. Детская, 11–5,тел.: +7 (905) 714 91 14</p></bio><email>89057149114@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Selkova</surname><given-names>E. P.</given-names></name><name xml:lang="ru"><surname>Селькова</surname><given-names>Е. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Eugenia P. Selkova – MD, PhD, Head of the Laboratory of Diagnosis and Prevention of Infectious Diseases, Chief Research Fellow.</p><p>10 Admirala Makarova ul., Moscow, 125212</p></bio><bio xml:lang="ru"><p>Селькова Евгения Петровна – доктор медицинских наук, руководитель лаборатории диагностики и профилактики инфекционных заболеваний, главный научный сотрудник .</p><p>125212, Москва, ул. Адмирала Макарова, 10</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gudova</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Гудова</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Natalia V. Gudova – Research Fellow, Laboratory of Diagnosis and Prevention of Infectious Diseases.</p><p>10 Admirala Makarova ul., Moscow, 125212</p></bio><bio xml:lang="ru"><p>Гудова Наталия Владимировна – научный сотрудник лаборатории диагностики и профилактики инфекционных заболеваний.</p><p>125212, Москва, ул. Адмирала Макарова, 10</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Oganesyan</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Оганесян</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Arpine S. Oganesyan – Research Fellow, Laboratory of Diagnosis and Prevention of Infectious Diseases.</p><p>10 Admirala Makarova ul., Moscow, 125212</p></bio><bio xml:lang="ru"><p>Оганесян Арпине Степановна – научный сотрудник лаборатории диагностики и профилактики инфекционных заболеваний.</p><p>125212, Москва, ул. Адмирала Макарова, 10</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Gabrichevsky Moscow Research Institute of Epidemiology and Microbiology</institution></aff><aff><institution xml:lang="ru">ФБУН «Московский НИИ эпидемиологии и микробиологии им. Г.Н. Габричевского» Роспотребнадзора</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-06-06" publication-format="electronic"><day>06</day><month>06</month><year>2018</year></pub-date><volume>46</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>109</fpage><lpage>117</lpage><history><date date-type="received" iso-8601-date="2018-06-05"><day>05</day><month>06</month><year>2018</year></date><date date-type="accepted" iso-8601-date="2018-06-05"><day>05</day><month>06</month><year>2018</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, Zatevalov A.M., Selkova E.P., Gudova N.V., Oganesyan A.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, Затевалов А.М., Селькова Е.П., Гудова Н.В., Оганесян А.С.</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">Zatevalov A.M., Selkova E.P., Gudova N.V., Oganesyan A.S.</copyright-holder><copyright-holder xml:lang="ru">Затевалов А.М., Селькова Е.П., Гудова Н.В., Оганесян А.С.</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/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://almclinmed.ru/jour/article/view/789">https://almclinmed.ru/jour/article/view/789</self-uri><abstract xml:lang="en"><p><bold>Rationale:</bold> Multiple biological effects of short chain fatty acids (SCFA) and the possibility to modify their composition by probiotics and prebiotics is in the focus of attention of researchers and clinicians. However, big studies with assessment of the whole spectrum of SCFA produced by gut microbiome and calculated indexes of their relative content are lacking.</p><p><bold>Aim:</bold> To determine concentrations and ratios of fecal SCFA (functional activity of the gut microbiome) depending on the age of patients without gastrointestinal disorders.</p><p><bold>Materials and methods</bold>: SCFA fecal concentrations were measured by gas liquid chromatography in 6836 patients aged from 1 month to 85 years without any functional or chronic gastrointestinal pathology, infectious diseases and/or obesity. The time periods with homogenous values of the parameters were determined by identification of constant trends of their means (medians) with 1-month accuracy in children below 5 years of age and with 1-year accuracy in the patients above 1 years of age. The results obtained for the chosen time intervals were compared with Mann-Whitney's test at 95% significance level (p &lt; 0.05).</p><p><bold>Results:</bold> We performed descriptive statistics for absolute and relative content of SCFA and their structural indexes. It was shown that the parameters characterizing functional activity of gut microbiome have different critical stages in their age-related changes. For each parameter, 2 or 3 stages of changes were identified that occurred at early age, mainly before the age of two. The final SCFA structure was stable by 2 years and 5 months of age. Total SCFA levels reached those typical for adults by the age of 12. The structural index was most sensitive to integrated changes of the microbiome structure.</p><p><bold>Conclusion:</bold> Age-related characteristics of gut microbiome should be taken into account when performing clinical studies on effectiveness of therapeutic interventions and assessing the parameters in a given patient.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность.</bold> Многочисленные биологические эффекты короткоцепочечных жирных кислот (КЖК) и возможность влиять на их состав с  помощью пробиотиков и  пребиотиков привлекает повышенное внимание научных исследователей и клиницистов. Однако отсутствуют крупные исследования, посвященные изучению всего спектра КЖК, продуцируемых кишечной микробиотой, а также расчетные индексы, характеризующие их относительное содержание.</p><p><bold>Цель </bold>– определение статистических характеристик концентраций и соотношений фекальных КЖК (функциональной активности микробиоты кишечника) в зависимости от возраста у пациентов, не имеющих гастроэнтерологических заболеваний.</p><p><bold>Материал и методы.</bold> Исследованы концентрации КЖК в  фекалиях методом газожидкостной хроматографии у  6836  пациентов в возрасте от 1 месяца до 85 лет, не имеющих функциональной или хронической гастроэнтерологической патологии, инфекционных заболеваний или ожирения. Временные промежутки с однородными значениями показателей были определены путем выявления постоянных тенденций средних (медианных) значений с точностью до месяца у детей младше 5 лет и с точностью до года у пациентов старше года. Полученные выборки показателей для определенных временных интервалов сравнивали по критерию Манна – Уитни для порога значимости 95% (p &lt; 0,05).</p><p><bold>Результаты.</bold> Проведена описательная статистика абсолютного и относительного содержания КЖК и структурных индексов. Установлено, что показатели, отражающие функциональную активность кишечной микрофлоры, характеризовались различными критическими этапами динамических возрастных изменений. Для каждого показателя регистрировалось 2–3 этапа изменений, происходящих в раннем возрасте, в основном до 2 лет. Окончательная структура КЖК устанавливалась в 2 года 5 месяцев. Суммарная концентрация КЖК достигала уровня взрослых в  12  лет. Структурный индекс был наиболее чувствительным к  интегральному изменению структуры микробиоты.</p><p><bold>Заключение.</bold> При проведении клинических исследований эффективности терапевтических вмешательств и при оценке показателей у конкретного пациента для выбора терапии необходимо учитывать возрастные особенности кишечной микробиоты.</p></trans-abstract><kwd-group xml:lang="en"><kwd>short chain fatty acids (SCFA)</kwd><kwd>gut microbiome</kwd><kwd>age-related SCFA changes</kwd><kwd>children</kwd><kwd>adults</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>короткоцепочечные жирные кислоты (КЖК)</kwd><kwd>кишечная микробиота</kwd><kwd>возрастная динамика КЖК</kwd><kwd>дети</kwd><kwd>взрослые</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Havenaar R. Intestinal health functions of colonic microbial metabolites: a review. 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