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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">periodontology</journal-id><journal-title-group><journal-title xml:lang="ru">Пародонтология</journal-title><trans-title-group xml:lang="en"><trans-title>Parodontologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1683-3759</issn><issn pub-type="epub">1726-7269</issn><publisher><publisher-name>Russian Periodontal Association (RPA)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33925/1683-3759-2026-1215</article-id><article-id custom-type="elpub" pub-id-type="custom">periodontology-1215</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>ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH</subject></subj-group></article-categories><title-group><article-title>Спектр аминокислот и газовых сигнальных молекул, продуцируемых кишечными стафилококками и лактобациллами здоровых лиц и пациентов с расстройствами аутистического спектра</article-title><trans-title-group xml:lang="en"><trans-title>Profiles of amino acids and gaseous signaling molecules produced by intestinal staphylococci and lactobacilli isolated from healthy individuals and patients with autism spectrum disorder</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9209-7839</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Червинец</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chervinets</surname><given-names>Y. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Червинец Юлия Вячеславовна, доктор медицинских наук, профессор, заведующая кафедрой микробиологии и вирусологии с курсом иммунологии</p><p>170100, ул. Советская, д. 4, г. Тверь</p></bio><bio xml:lang="en"><p>Yulia V. Chervinets, DMD, PhD, DSc, Professor, Head of the Department of Microbiology and Virology with the Course of Immunology</p><p>4 Sovetskaya St., Tver, Russian Federation, 170100</p></bio><email xlink:type="simple">julia_chervinec@mail.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/0000-0003-4712-3043</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Григорьянц</surname><given-names>Э. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigoryants</surname><given-names>E. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Григорьянц Элина Олеговна, старший преподаватель кафедры микробиологии и вирусологии с курсом иммунологии</p><p>Тверь</p></bio><bio xml:lang="en"><p>Elina O. Grigoryants, Senior Lecturer at the Department of the Microbiology and Virology with the Course of Immunology</p><p>Tver </p></bio><email xlink:type="simple">grigoryantseo@tvgmu.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/0000-0002-7165-5077</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Беляев</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Belyaev</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Беляев Всеволод Станиславович, ассистент кафедры микробиологии и вирусологии с курсом иммунологии</p><p>Тверь</p></bio><bio xml:lang="en"><p>Vsevolod S. Belyaev, Assistant at the Department of the Microbiology and Virology with the Course of Immunology</p><p>Tver </p></bio><email xlink:type="simple">belyaevvs@tvgmu.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/0000-0002-1792-7414</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попов</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Попов Никита Сергеевич, кандидат фармацевтических наук, доцент, доцент кафедры фармакологии</p><p>Тверь</p></bio><bio xml:lang="en"><p>Nikita S. Popov, PhD, Docent, Associate Professor, Department of the Pharmacology</p><p>Tver </p></bio><email xlink:type="simple">popovns@tvgmu.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/0000-0001-5304-1963</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Червинец</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Chervinets</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Червинец Вячеслав Михайлович, доктор медицинских наук, профессор кафедры микробиологии и вирусологии с курсом иммунологии</p><p>Тверь</p></bio><bio xml:lang="en"><p>Vyacheslav M. Chervinets, PhD, DSc, Professor, Professor of the Department of the Microbiology and Virology with the Course of Immunology</p><p>Tver </p></bio><email xlink:type="simple">chervinetsvm@tvgmu.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/0000-0002-4757-3303</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михайлова Елена Сергеевна, кандидат медицинских наук, доцент кафедры микробиологии и вирусологии с курсом иммунологии</p><p>Тверь</p></bio><bio xml:lang="en"><p>Elena S. Mikhailova, DMD, PhD, Associate Professor, Department of the microbiology and virology with cource of immunology</p><p>Tver </p></bio><email xlink:type="simple">mihaylovaes@tvgmu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Тверской государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tver State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2026</year></pub-date><volume>0</volume><issue>0</issue><issue-title>Принято в печать</issue-title><elocation-id>1215</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Червинец Ю.В., Григорьянц Э.О., Беляев В.С., Попов Н.С., Червинец В.М., Михайлова Е.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Червинец Ю.В., Григорьянц Э.О., Беляев В.С., Попов Н.С., Червинец В.М., Михайлова Е.С.</copyright-holder><copyright-holder xml:lang="en">Chervinets Y.V., Grigoryants E.O., Belyaev V.S., Popov N.S., Chervinets V.M., Mikhailova E.S.</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.parodont.ru/jour/article/view/1215">https://www.parodont.ru/jour/article/view/1215</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. В последние годы исследователи обращают внимание на метаболическую активность микробиоты кишечника как инициальный фактор развития различных заболеваний. Увеличивающаяся частота встречаемости расстройств аутистического спектра заставляет искать новые причины развития этой группы заболеваний и, соответственно, подходы к их лечению. Многочисленные исследования показывают, что выявленный у данной группы пациентов дисбаланс в метаболизме аминокислот и газовых молекул, регулирующих работу нервной системы, может иметь в том и числе бактериальное происхождение.</p></sec><sec><title>Цель</title><p>Цель. Оценка спектра и концентрации аминокислот и газовых сигнальных молекул, продуцируемых кишечными стафилококками и лактобациллами от здоровых лиц и пациентов с расстройствами аутистического спектра.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследование проводилось в рамках классического бактериологического метода исследования фекалий 12 здоровых детей и 12 детей с расстройствами аутистического спектра. Выявление продукции бактериальных аминокислот осуществляли методом высокоэффективной жидкостной хроматографии с масс-спектрометрическим детектированием. Оценка продукции газовых сигнальных молекул осуществлялась методом газовой хроматографии.</p></sec><sec><title>Результаты</title><p>Результаты. Результаты исследования подтверждают имеющиеся в литературе ограниченные данные, а именно повышенную продукцию микроорганизмами кишечника глутамата и, наоборот, сниженную продукциюлейцина и изолейцина, а также лизина. Более того, кишечные штаммы Staphylococcus aureus продемонстрировали меньшую выработку треонина и фенилаланина, при повышенном синтезе пролина. Lactobacillus rhamnosus кишечника пациентов с расстройствами аутистического спектра продуцируют в большей степени, как NO, так CO, чем штаммы здоровых детей.</p></sec><sec><title>Заключение</title><p>Заключение. Таким образом, микробиота кишечника у детей с расстройствами аутистического спектра в действительности показывает иную газовую и аминокислотную метаболическую активность, чем микробиота здоровых детей. Необходимы дальнейшие исследования, чтобы доказать влияние продуктов метаболизма микроорганизмов на развитие неврологических расстройств. Имеющиеся данные необходимо использовать для обогащения диагностических и терапевтических инструментов в арсенале врачей-неврологов для лечения детей с расстройствами аутистического спектра.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. In recent years, researchers have increasingly focused on the metabolic activity of the gut microbiota as a potential factor in the development of various diseases. The rising prevalence of autism spectrum disorder (ASD) has intensified efforts to identify additional etiological factors and develop new therapeutic approaches. Numerous studies suggest that the disturbances in amino acid metabolism and in the metabolism of gaseous signaling molecules involved in nervous system regulation observed in these patients may be partly attributable to bacterial activity.</p></sec><sec><title>Objective</title><p>Objective. To characterize the profiles and concentrations of amino acids and gaseous signaling molecules produced by intestinal staphylococcal and lactobacillus strains isolated from healthy children and children with ASD.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Fecal samples from 12 healthy children and 12 children with ASD were analyzed using conventional bacteriological methods. Amino acid production by the bacterial isolates was assessed by high-performance liquid chromatography coupled with mass spectrometric detection, and gaseous signaling molecule production was measured by gas chromatography.</p></sec><sec><title>Results</title><p>Results. Compared with strains isolated from healthy children, intestinal bacterial strains from children with ASD produced higher levels of glutamate and lower levels of leucine, isoleucine, and lysine, in line with the limited evidence reported in the literature. In addition, Staphylococcus aureus strains isolated from children with ASD produced less threonine and phenylalanine but more proline. Lactobacillus rhamnosus strains isolated from children with ASD produced greater amounts of both NO and CO than strains isolated from healthy children.</p></sec><sec><title>Conclusion</title><p>Conclusion. The gut microbiota of children with ASD differs from that of healthy children in its amino acid and gaseous signaling molecule metabolism. Further studies are needed to determine whether microbial metabolites contribute to the development of neurological disorders. These findings should be used to expand the range of diagnostic and therapeutic tools available to neurologists treating children with ASD.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>микробиота кишечника</kwd><kwd>стафилококки</kwd><kwd>лактобациллы</kwd><kwd>аминокислоты</kwd><kwd>газовые сигнальные молекулы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gut microbiota</kwd><kwd>staphylococci</kwd><kwd>lactobacilli</kwd><kwd>amino acids</kwd><kwd>gaseous signaling molecules</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">Кожевников АА, Раскина КВ, Мартынова ЕЮ, Тяхт АВ, Перфильев АВ, Драпкина ОМ, и др. Кишечная микробиота: современные представления о видовом составе, функциях и методах исследования. Русский медицинский журнал. 2017;17:1244-1247. Режим доступа: https://www.rmj.ru/articles/gastroenterologiya/Kishech-naya_mikrobiota_sovremennye_predstavleniya_o_vidovom_sostave_funkciyah_i_metodah_issledovaniya/</mixed-citation><mixed-citation xml:lang="en">Kozhevnikov A.A., Raskina K.V., Martynova E.Yu., Tyakht A.V., Perfiliev A.V., Drapkina O.M., et al. Intestinal microbiota: modern concepts of the species composition, functions and diagnostic techniques. Russian Medical Journal. 2017;17:1244-124 (In Russ.). Available from: https://www.rmj.ru/articles/gastroenterologiya/Kishechnaya_mikrobiota_sovremennye_predstavleniya_o_vidovom_sostave_funkciyah_i_metodah_issledovaniya/</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Fu Y, Lyu J, Wang S. The role of intestinal microbes on intestinal barrier function and host immunity from a metabolite perspective. Front Immunol. 2023;14:1277102. https://doi.org/10.3389/fimmu.2023.1277102.</mixed-citation><mixed-citation xml:lang="en">Fu Y, Lyu J, Wang S. The role of intestinal microbes on intestinal barrier function and host immunity from a metabolite perspective. Front Immunol. 2023;14:1277102. https://doi.org/10.3389/fimmu.2023.1277102.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Liao SF, Regmi N, Wu G. Homeostatic regulation of plasma amino acid concentrations. Front Biosci (Landmark Ed). 2018;23(4):640-655. https://doi.org/10.2741/4610</mixed-citation><mixed-citation xml:lang="en">Liao SF, Regmi N, Wu G . Homeostatic regulation of plasma amino acid concentrations. Front Biosci (Landmark Ed). 2018;23(4):640-655. https://doi.org/10.2741/4610</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Dai ZL, Wu G, Zhu WY. Amino acid metabolism in intestinal bacteria: links between gut ecology and host health. Front Biosci (Landmark Ed). 2011;16(5):1768-1786. https://doi.org/10.2741/3820</mixed-citation><mixed-citation xml:lang="en">Dai ZL, Wu G, Zhu WY. Amino acid metabolism in intestinal bacteria: links between gut ecology and host health. Front Biosci (Landmark Ed). 2011;16(5):1768-1786. https://doi.org/10.2741/3820</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Liu J, Tan Y, Cheng H, Zhang D, Feng W, Peng C. Functions of Gut Microbiota Metabolites, Current Status and Future Perspectives. Aging Dis. 2022;13(4):1106-1126. https://doi.org/10.14336/AD.2022.0104</mixed-citation><mixed-citation xml:lang="en">Liu J, Tan Y, Cheng H, Zhang D, Feng W, Peng C. Functions of Gut Microbiota Metabolites, Current Status and Future Perspectives. Aging Dis. 2022;13(4):1106-1126. https://doi.org/10.14336/AD.2022.0104</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Lee JY, Bays DJ, Savage HP, Bäumler AJ. The human gut microbiome in health and disease: time for a new chapter? Infect Immun. 2024;92(11):e0030224 https://doi.org/10.1128/iai.00302-24</mixed-citation><mixed-citation xml:lang="en">Lee JY, Bays DJ, Savage HP, Bäumler AJ. The human gut microbiome in health and disease: time for a new chapter? Infect Immun. 2024;92(11):e0030224. https://doi.org/10.1128/iai.00302-24.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Донцова АС, Гуленко ОВ, Скатова ЕА. Дети с расстройствами аутистического спектра на стоматологическом приеме: проблемы, поведенческие характеристики, рекомендации. Стоматология детского возраста и профилактика. 2021;21(3):182-189. https://doi.org/10.33925/1683-3031-2021-21-3-182-189</mixed-citation><mixed-citation xml:lang="en">Dontsova A.S., Gulenko O.V., Skatova E.A. Children with autism spectrum disorder at a dental appointment: problems, behavioral characteristics, recommendations. Pediatric dentistry and dental prophylaxis. 2021;21(3):182-189. (In Russ.) https://doi.org/10.33925/1683-3031-2021-21-3-182-189</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Григорьянц ЭО, Червинец ЮВ, Червинец ВМ, Румянцева ЕС. Влияние дисбиоза кишечника на течение расстройств аутистического спектра у детей: обзор литературы. Астраханский медицинский журнал. 2024;19(4):16-30. https://doi.org/10.17021/1992-6499-2024-4-16-30</mixed-citation><mixed-citation xml:lang="en">Grigoryants E.O., Chervinets Yu.V., Chervinets V.M., Rumyantseva E.S. Influence of intestinal dysbiosis on the course of authistic spectrum: literature review. Astrakhan medical journal. 2024;19(4):16-30 (In Russ.). https://doiorg/10.17021/1992-6499-2024-4-16-30</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Nisar S, Bhat AN, Masoodi T, Hashem S, Akhtar S, Ali TA, et al. Genetics of glutamate and its receptors in autism spectrum disorder. Mol Psychiatry. 2022;27(5): 2380-2392. https://doi.org/10.1038/s41380-022-01506-w</mixed-citation><mixed-citation xml:lang="en">Nisar S, Bhat AN, Masoodi T, Hashem S, Akhtar S, Ali TA, et al. Genetics of glutamate and its receptors in autism spectrum disorder. Mol Psychiatry. 2022;27(5):2380-2392. https://doi.org/10.1038/s41380-022-01506-w</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Zheng Z, Zhu T, Qu Y, Mu D. Blood Glutamate Levels in Autism Spectrum Disorder: A Systematic Review and Meta-Analysis. PLoS One. 2016;11(7):e0158688. https://doi.org/10.1371/journal.pone.0158688</mixed-citation><mixed-citation xml:lang="en">Zheng Z, Zhu T, Qu Y, Mu D. Blood Glutamate Levels in Autism Spectrum Disorder: A Systematic Review and Meta-Analysis. PLoS One. 2016;11(7):e0158688. https://doi.org/10.1371/journal.pone.0158688.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Kang DW, Adams JB, Vargason T, Santiago M, Hahn J, Krajmalnik-Brown R. Distinct Fecal and Plasma Metabolites in Children with Autism Spectrum Disorders and Their Modulation after Microbiota Transfer Therapy. mSphere. 2020;5(5):e00314-20. https://doi.org/10.1128/mSphere.00314-20</mixed-citation><mixed-citation xml:lang="en">Kang DW, Adams JB, Vargason T, Santiago M, Hahn J, Krajmalnik-Brown R. Distinct Fecal and Plasma Metabolites in Children with Autism Spectrum Disorders and Their Modulation after Microbiota Transfer Therapy. mSphere. 2020;5(5):e00314-20. https://doi.org/10.1128/mSphere.00314-20.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Эль-Ансари А. ГАМК, дефициты нейротрансмиттера глутамата при аутизме и их нейтрализация как новая гипотеза эффективной стратегии лечения. Аутизм и нарушения развития. 2020;18(3):46-63. https://doi.org/10.17759/autdd.2020180306</mixed-citation><mixed-citation xml:lang="en">El-Ansari A. Gaba and glutamate imbalance in autism and their reversal as novel hypothesis for effective treatment strategy. Autism and Developmental Disorders. 2020;18(3):46-63 (In Russ.). https://doi.org/10.17759/autdd.2020180306</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Pennacchietti E, D'Alonzo C, Freddi L, Occhialini A, De Biase D. The Glutaminase-Dependent Acid Resistance System: Qualitative and Quantitative Assays and Analysis of Its Distribution in Enteric Bacteria. Front Microbiol. 2018;9:2869. https://doi.org/10.3389/fmicb.2018.02869</mixed-citation><mixed-citation xml:lang="en">Pennacchietti E, D'Alonzo C, Freddi L, Occhialini A, De Biase D. The Glutaminase-Dependent Acid Resistance System: Qualitative and Quantitative Assays and Analysis of Its Distribution in Enteric Bacteria. Front Microbiol. 2018;9:2869. https://doi.org/10.3389/fmicb.2018.02869</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Zhu L, Wang Z, Gao L, Chen X. Unraveling the Potential of γ-Aminobutyric Acid: Insights into Its Biosynthesis and Biotechnological Applications. Nutrients. 2024;16(16):2760. https://doi.org/10.3390/nu16162760</mixed-citation><mixed-citation xml:lang="en">Zhu L, Wang Z, Gao L, Chen X. Unraveling the Potential of γ-Aminobutyric Acid: Insights into Its Biosynthesis and Biotechnological Applications. Nutrients. 2024;16(16):2760. https://doi.org/10.3390/nu16162760.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Скальный АВ, Коробейникова ТВ, Скальный АА, Лобанова ЮН, Скальная МГ, Тиньков АА. Особенности сывороточной концентрации аминокислот у детей дошкольного возраста с расстройством аутистического спектра. Вопросы биологической, медицинской и фармацевтической химии. 2020;23(2):24−30. https://doi.org/10.29296/25877313-2020-02-04</mixed-citation><mixed-citation xml:lang="en">Skalny A.V., Korobeynikova T.V., Skalny A.A., Lobanova Ju.N., Skalnaya M.G., Tinkov A.A. Specific features of serum amino acid concentration in preschool children with autism spectrum disorder. Problems of biological, medical and pharmaceutical chemistry. 2020;23(2):24−30 (In Russ.). https://doi.org/10.29296/25877313-2020-02-04</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Tirouvanziam R, Obukhanych TV, Laval J, Aronov PA, Libove R, Banerjee AG, et al. Distinct plasma profile of polar neutral amino acids, leucine, and glutamate in children with Autism Spectrum Disorders. J Autism Dev Disord. 2012; 42(5):827-836. https://doi.org/10.1007/s10803-011-1314-x</mixed-citation><mixed-citation xml:lang="en">Tirouvanziam R, Obukhanych TV, Laval J, Aronov PA, Libove R, Banerjee AG, et al. Distinct plasma profile of polar neutral amino acids, leucine, and glutamate in children with Autism Spectrum Disorders. J Autism Dev Disord. 2012;42(5):827-36. https://doi.org/10.1007/s10803-011-1314-x.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Wang X, Wang X, Xie F, Sun Z, Guo B, Li F, et al. Leucine mediates cognitive dysfunction in early life stress-induced mental disorders by activating autophagy. Front Cell Neurosci. 2023;16:1060712. https://doi.org/10.3389/fncel.2022.1060712</mixed-citation><mixed-citation xml:lang="en">Wang X, Wang X, Xie F, Sun Z, Guo B, Li F, et al. Leucine mediates cognitive dysfunction in early life stress-induced mental disorders by activating autophagy. Front Cell Neurosci. 2023;16:1060712. https://doi.org/10.3389/fncel.2022.1060712</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Ma C, Teng L, Lin G, Guo B, Zhuo R, Qian X, et al. L-leucine promotes axonal outgrowth and regeneration via mTOR activation. FASEB J. 2021;35(5):e21526 https://doi.org/10.1096/fj.202001798RR</mixed-citation><mixed-citation xml:lang="en">Ma C, Teng L, Lin G, Guo B, Zhuo R, Qian X, et al. L-leucine promotes axonal outgrowth and regeneration via mTOR activation. FASEB J. 2021;35(5):e21526 https://doi.org/10.1096/fj.202001798RR</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Díaz-Pérez AL, Díaz-Pérez C, Campos-García J. Bacterial l-leucine catabolism as a source of secondary metabolites. Reviews in Environmental Science and Bio/Technology. 2016;15:1–29. https://doi.org/10.1007/s11157-015-9385-3</mixed-citation><mixed-citation xml:lang="en">Díaz-Pérez AL, Díaz-Pérez C, Campos-García J. Bacterial l-leucine catabolism as a source of secondary metabolites. Reviews in Environmental Science and Bio/Technology. 2016;15:1–29. https://doi.org/10.1007/s11157-015-9385-3</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Stadtman ER. Regulation of Glutamine Synthetase Activity. EcoSal Plus. 2004;1(1). https://doi.org/10.1128/ecosalplus.3.6.1.6.</mixed-citation><mixed-citation xml:lang="en">Stadtman ER. Regulation of Glutamine Synthetase Activity. EcoSal Plus. 2004;1(1). https://doi.org/10.1128/ecosalplus.3.6.1.6</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Северьянова ЛА, Долгинцев МЕ. Современные представления о действии аминокислоты L-лизина на нервную и иммунную регуляторные системы. Курский научно-практический вестник Человек и его здоровье. 2007;(2):67-79. Режим доступа: https://elibrary.ru/item.asp?id=11991593</mixed-citation><mixed-citation xml:lang="en">Severyanova L.A., Dolgintsev M.E. The modern concept of l-lysine action on the nervous and immune regulator systems. Humans and their health. 2007;(2):67-79 (In Russ.). Available from: https://elibrary.ru/item.asp?id=11991593</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Hor L, Dobson RC, Downton MT, Wagner J, Hutton CA, Perugini MA. Dimerization of bacterial diaminopimelate epimerase is essential for catalysis. J Biol Chem. 2013;288(13):9238-9248. https://doi.org/10.1074/jbc.M113.450148</mixed-citation><mixed-citation xml:lang="en">Hor L, Dobson RC, Downton MT, Wagner J, Hutton CA, Perugini MA. Dimerization of bacterial diaminopimelate epimerase is essential for catalysis. J Biol Chem. 2013;288(13):9238-9248. https://doi.org/10.1074/jbc.M113.450148</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Kremer M, Schulze S, Eisenbruch N, Nagel F, Vogt R, Berndt L, et al. Bacteria employ lysine acetylation of transcriptional regulators to adapt gene expression to cellular metabolism. Nat Commun. 2024;15(1):1674. https://doi.org/10.1038/s41467-024-46039-8</mixed-citation><mixed-citation xml:lang="en">Kremer M, Schulze S, Eisenbruch N, Nagel F, Vogt R, Berndt L, et al. Bacteria employ lysine acetylation of transcriptional regulators to adapt gene expression to cellular metabolism. Nat Commun. 2024;15(1):1674. https://doi.org/10.1038/s41467-024-46039-8</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Wang L, Dan Q, Xu B, Chen Y, Zheng T. Research progress on gas signal molecular therapy for Parkinson’s disease. Open Life Sci. 2023;18(1):20220658. https://doi.org/10.1515/biol-2022-0658</mixed-citation><mixed-citation xml:lang="en">Wang L, Dan Q, Xu B, Chen Y, Zheng T. Research progress on gas signal molecular therapy for Parkinson’s disease. Open Life Sci. 2023;18(1):20220658. https://doi.org/10.1515/biol-2022-0658</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Liu X, Lin J, Zhang H, Khan NU, Zhang J, Tang X, et al. Oxidative Stress in Autism Spectrum Disorder-Current Progress of Mechanisms and Biomarkers. Front Psychiatry. 2022;13:813304. https://doi.org/10.3389/fpsyt.2022.813304</mixed-citation><mixed-citation xml:lang="en">Liu X, Lin J, Zhang H, Khan NU, Zhang J, Tang X, et al. Oxidative Stress in Autism Spectrum Disorder-Current Progress of Mechanisms and Biomarkers. Front Psychiatry. 2022;13:813304 https://doi.org/10.3389/fpsyt.2022.813304</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Al-Garni AM, Hosny SA, Almasabi F, Shati AA, Alzamil NM, ShamsEldeen AM, et al. Identifying iNOS and glycogen as biomarkers for degenerated cerebellar purkinje cells in autism spectrum disorder: Protective effects of erythropoietin and zinc sulfate. PLoS One. 2025;20(2):e0317695. https://doi.org/10.1371/journal.pone.0317695</mixed-citation><mixed-citation xml:lang="en">Al-Garni AM, Hosny SA, Almasabi F, Shati AA, Alzamil NM, ShamsEldeen AM, et al. Identifying iNOS and glycogen as biomarkers for degenerated cerebellar purkinje cells in autism spectrum disorder: Protective effects of erythropoietin and zinc sulfate. PLoS One. 2025;20(2):e0317695. https://doi.org/10.1371/journal.pone.0317695</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Frye RE, Rose S, Voinsky I, Gurwitz D. Nitrosative Stress in Autism: Supportive Evidence and Implications for Mitochondrial Dysfunction. Adv Sci (Weinh). 2024;11(16):e2304439. https://doi.org/10.1002/advs.202304439.</mixed-citation><mixed-citation xml:lang="en">Frye RE, Rose S, Voinsky I, Gurwitz D. Nitrosative Stress in Autism: Supportive Evidence and Implications for Mitochondrial Dysfunction. Adv Sci (Weinh). 2024;11(16):e2304439. https://doi.org/10.1002/advs.202304439</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Lundberg JO, Weitzberg E, Gladwin MT. The nitrate–nitrite–nitric oxide pathway in physiology and therapeutics. Nat Rev Drug Discov 7. 2008;156–167. https://doi.org/10.1038/nrd2466</mixed-citation><mixed-citation xml:lang="en">Lundberg JO, Weitzberg E, Gladwin MT. The nitrate–nitrite–nitric oxide pathway in physiology and therapeutics. Nat Rev Drug Discov 7. 2008;156–167. https://doi.org/10.1038/nrd2466</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Tribble GD, Angelov N, Weltman R, Wang BY, Eswaran SV, Gay IC, et al. Frequency of Tongue Cleaning Impacts the Human Tongue Microbiome Composition and Enterosalivary Circulation of Nitrate. Front. Cell. Infect. Microbiol. 2019;1:9:39. https://doi.org/10.3389/fcimb.2019.00039</mixed-citation><mixed-citation xml:lang="en">Tribble GD, Angelov N, Weltman R, Wang BY, Eswaran SV, Gay IC, et al. Frequency of Tongue Cleaning Impacts the Human Tongue Microbiome Composition and Enterosalivary Circulation of Nitrate. Front. Cell. Infect. Microbiol. 2019;1:9:39. https://doi.org/10.3389/fcimb.2019.00039</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Fujita K, Yamafuji M, Nakabeppu Y, Noda M. Therapeutic approach to neurodegenerative diseases by medical gases: focusing on redox signaling and related antioxidant enzymes. Oxid Med Cell Longev. 2012; 2012:324256. https://doi.org/10.1155/2012/324256</mixed-citation><mixed-citation xml:lang="en">Fujita K, Yamafuji M, Nakabeppu Y, Noda M. Therapeutic approach to neurodegenerative diseases by medical gases: focusing on redox signaling and related antioxidant enzymes. Oxid Med Cell Longev. 2012;2012:324256. https://doi.org/10.1155/2012/324256</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Sherman HT, Liu K, Kwong K, Chan ST, Li AC, Kong XJ. Carbon monoxide (CO) correlates with symptom severity, autoimmunity, and responses to probiotics treatment in a cohort of children with autism spectrum disorder (ASD): a post-hoc analysis of a randomized controlled trial. BMC Psychiatry. 2022;22(1):536. https://doi.org/10.1186/s12888-022-04151-3</mixed-citation><mixed-citation xml:lang="en">Sherman HT, Liu K, Kwong K, Chan ST, Li AC, Kong XJ. Carbon monoxide (CO) correlates with symptom severity, autoimmunity, and responses to probiotics treatment in a cohort of children with autism spectrum disorder (ASD): a post-hoc analysis of a randomized controlled trial. BMC Psychiatry. 2022;22(1):536. https://doi.org/10.1186/s12888-022-04151-3</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>
