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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">Russian Journal of Physiology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Physiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский физиологический журнал им. И.М. Сеченова</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-8139</issn><issn publication-format="electronic">2658-655X</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">682948</article-id><article-id pub-id-type="doi">10.31857/S0869813925010015</article-id><article-id pub-id-type="edn">ULBGZT</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>REVIEW</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОБЗОРНЫЕ 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">Endocrine properties of microbiota</article-title><trans-title-group xml:lang="ru"><trans-title>Эндокринные свойства микробиоты</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sobol</surname><given-names>K. V.</given-names></name><name xml:lang="ru"><surname>Соболь</surname><given-names>К. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>peep9@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Sechenov Institute of Evolutionary Physiology and Biochemistry, RAS</institution></aff><aff><institution xml:lang="ru">Институт эволюционной физиологии и биохимии им. И.М. Сеченова Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-01-14" publication-format="electronic"><day>14</day><month>01</month><year>2025</year></pub-date><volume>111</volume><issue>1</issue><issue-title xml:lang="ru"/><fpage>5</fpage><lpage>32</lpage><history><date date-type="received" iso-8601-date="2025-06-05"><day>05</day><month>06</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0869-8139/article/view/682948">https://journals.eco-vector.com/0869-8139/article/view/682948</self-uri><abstract xml:lang="en"><p>Microbiota and the macroorganism are in constant interaction with each other. Symbiotic microbiota participates in a number of important physiological, biochemical and neuroendocrine functions of the macroorganism. Metabolic activity of microbiota in the gastrointestinal tract (GIT) helps to digest food, absorb nutrients and extract energy. GIT microbiota participates in the metabolic processes of protein, fat and carbohydrate metabolism, in gluconeogenesis and glycogenolysis, and also affects the feeling of hunger and satiety. In addition, microbiota is often considered as a metabolically active "organ", since the power of metabolic reactions of the intestinal microbiota is comparable to that of the liver of the host organism. Microbiota produces autoinducers (quorum-sensing substances), hormones, neurotransmitters, short-chain fatty acids (SCFA), secondary bile acids, growth factors, gaseous molecules and many other active substances. Microbial metabolites provide the main communication between the host organism and its microbial community and are of great importance for the normal functioning of the macroorganism, starting from intrauterine development and ending with the aging process. Moreover, changes in metabolic activity and/or the ratio of different types of microorganisms can lead to various metabolic disorders of the host organism. Conversely, a metabolic disorder of the host organism can lead to a change in the species composition of the microbiota. This review describes the influence of the microbiota and its metabolites on the neuroendocrine functions of the macroorganism and describes the corresponding mechanisms of this influence.</p></abstract><trans-abstract xml:lang="ru"><p>Микробиота и макроорганизм находятся в постоянном взаимодействии друг с другом. Симбионтная микробиота принимает участие в выполнении ряда важных физиологических, биохимических и нейроэндокринных функций макроорганизма. Метаболическая активность микробиоты в желудочно-кишечном тракте (ЖКТ) помогает переваривать пищу, усваивать питательные вещества и извлекать энергию. Микробиота ЖКТ участвует в процессах метаболизма белков, жиров и углеводов, в процессах глюконеогенеза и гликогенолиза, а также влияет на чувство голода и насыщения. Помимо этого, микробиоту часто рассматривают как метаболически активный «орган», поскольку мощность метаболических реакций микробиоты кишечника сравнима с таковой печени организма-хозяина. Микробиота продуцирует аутоиндукторы (кворум-чувствительные вещества), гормоны, нейромедиаторы, короткоцепочечные жирные кислоты, вторичные жирные кислоты, факторы роста, газообразные молекулы и множество других активных веществ. Микробные метаболиты обеспечивают основную коммуникацию между организмом хозяина и его микробным сообществом и имеют огромное значение для нормального функционирования макроорганизма, начиная с внутриутробного развития и кончая процессами старения. Более того, изменение метаболической активности и/или соотношения разных видов микроорганизмов может приводить к различным метаболическим нарушениям организма-хозяина. Верно и обратное, нарушение метаболизма организма-хозяина может приводить к изменению видового состава микробиоты. В данном обзоре описано влияние микробиоты и ее метаболитов на нейроэндокринные функции макроорганизма и описаны соответствующие механизмы этого влияния.</p></trans-abstract><kwd-group xml:lang="en"><kwd>gut microbiota</kwd><kwd>neurotransmitters</kwd><kwd>short-chain fatty acids</kwd><kwd>glucagon-like peptide-1</kwd><kwd>ghrelin</kwd><kwd>leptin</kwd><kwd>neurotrophic factors</kwd><kwd>growth factors</kwd><kwd>steroid hormones</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>кишечная микробиота</kwd><kwd>нейромедиаторы</kwd><kwd>короткоцепочечные жирные кислоты</kwd><kwd>глюкагоноподобный пептид-1</kwd><kwd>желчные кислоты</kwd><kwd>грелин</kwd><kwd>лептин</kwd><kwd>нейротрофические факторы</kwd><kwd>факторы роста</kwd><kwd>стероидные гормоны</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство РФ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of RF</institution></institution-wrap></funding-source><award-id>075-00264-24-00</award-id></award-group><funding-statement xml:lang="en">This work was financed by the budget of state assignment No. 075-00264-24-00 of the I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences.</funding-statement><funding-statement xml:lang="ru">Данная работа финансировалась за счет средств бюджета госзадания № 075-00264-24-00 Института эволюционной физиологии и биохимии им. И.М. Сеченова РАН.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Олескин АВ, Шендеров БА, Роговский ВС (2020) Социальность микроорганизмов и взаимоотношения в системе микробиота – хозяин: роль нейромедиаторов. М. Изд-во Моск. ун-та. [Oleskin AV, Shenderov BA, Rogovsky VS (2020) Microbial sociality and microbiota-host relationships: the role of neurotransmitters. M. Moscow Univer Publ. (In Russ)].</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Cryan JF, Dinan TG (2012) Mind-altering microorganisms: the impact of the gut microbiota on brain and behaviour. 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