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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="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Medicine</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Медицина</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-0245</issn><issn publication-format="electronic">2313-0261</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">34085</article-id><article-id pub-id-type="doi">10.22363/2313-0245-2023-27-1-9-16</article-id><article-id pub-id-type="edn">RZBRVG</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>GINECOLOGY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ГИНЕКОЛОГИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Group B streptococcus in obstetrics: unsolved problems</article-title><trans-title-group xml:lang="ru"><trans-title>Стрептококк группы В в акушерстве: нерешенные проблемы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4956-0466</contrib-id><name-alternatives><name xml:lang="en"><surname>Radzinsky</surname><given-names>Victor E.</given-names></name><name xml:lang="ru"><surname>Радзинский</surname><given-names>В. Е.</given-names></name></name-alternatives><email>stetsyuko@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4288-353X</contrib-id><name-alternatives><name xml:lang="en"><surname>Doronina</surname><given-names>Olga K.</given-names></name><name xml:lang="ru"><surname>Доронина</surname><given-names>О. К.</given-names></name></name-alternatives><email>stetsyuko@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9632-6731</contrib-id><name-alternatives><name xml:lang="en"><surname>Olenev</surname><given-names>Anton S.</given-names></name><name xml:lang="ru"><surname>Оленев</surname><given-names>А. С.</given-names></name></name-alternatives><email>stetsyuko@list.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8600-7112</contrib-id><name-alternatives><name xml:lang="en"><surname>Stetsyuk</surname><given-names>Olga V.</given-names></name><name xml:lang="ru"><surname>Стецюк</surname><given-names>О. В.</given-names></name></name-alternatives><email>stetsyuko@list.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Moscow Multidisciplinary Clinical Center «Kommunarka»</institution></aff><aff><institution xml:lang="ru">Московский многопрофильный клинический центр «Коммунарка»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-03-27" publication-format="electronic"><day>27</day><month>03</month><year>2023</year></pub-date><volume>27</volume><issue>1</issue><issue-title xml:lang="en">GINECOLOGY</issue-title><issue-title xml:lang="ru">ГИНЕКОЛОГИЯ</issue-title><fpage>9</fpage><lpage>16</lpage><history><date date-type="received" iso-8601-date="2023-03-27"><day>27</day><month>03</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Radzinsky V.E., Doronina O.K., Olenev A.S., Stetsyuk O.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Радзинский В.Е., Доронина О.К., Оленев А.С., Стецюк О.В.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Radzinsky V.E., Doronina O.K., Olenev A.S., Stetsyuk O.V.</copyright-holder><copyright-holder xml:lang="ru">Радзинский В.Е., Доронина О.К., Оленев А.С., Стецюк О.В.</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-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/medicine/article/view/34085">https://journals.rudn.ru/medicine/article/view/34085</self-uri><abstract xml:lang="en"><p style="text-align: justify;">For several decades, among all possible pathogens of neonatal infections, group B streptococcus has been one of the leading positions. Sepsis, meningitis, and pneumonia are among the most common clinical manifestations of neonatal infection associated with group B streptococcus. In this review, our goal was to analyze the literature demonstrating a worldwide approach to the prevention of vertical transmission of group B streptococcus from mother to child. When writing the review, scientific publications of foreign and domestic authors from the PubMed database were studied. The review considers the drugs of choice for intranatal antibiotic prophylaxis, and their pharmacodynamic, and pharmacokinetic features. The analysis details the problem of the growth of resistance of group B streptococcus to antibacterial drugs. The antimicrobial activity of lactoferrin was noted at a minimum inhibitory concentration of 500 μg/ml. The presented review also reflects the protective and therapeutic effects of oral intake of probiotics containing Lactobacillus acidophilus, Lactobacillus salivarius, Lactobacillus rhamnosus GR-1, and Lactobacillus reuteri RC-14 . Based on the analysis, it can be concluded that penicillin G and ampicillin have the most pronounced bactericidal effect against group B streptococcus. At the same time, the most common side effects of β-lactam penicillins include an allergic reaction with the possible development of anaphylactic shock. Given this, the antibiotics of the first-line reserve group include cefazolin, clindamycin, and vancomycin. At the same time, it is important to take into account the decrease in the therapeutic concentration of clindamycin with a change in the alpha-1-acid glycoprotein in the blood of the mother and fetus, the nephrotoxic effect of vancomycin and the cross-a llergic reaction of cefazolin with antibiotics of the penicillin group. A promising direction in solving the problem of group B streptococcus is the development of new strategies for the prevention of perinatal infection of the fetus and newborn based on a more detailed study of the effects of lactoferrin and probiotics.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">На протяжении нескольких десятилетий среди всех возможных возбудителей неонатальных инфекций стрептококк группы В занимает одну из ведущих позиций. Сепсис, менингит и пневмонию относят к наиболее частым клиническим проявлениям неонатальной инфекции, ассоциированной стрептококком группы В. В рамках данного обзора перед нами стояла цель - провести анализ литературных источников, демонстрирующих всемирный подход к профилактике вертикальной трансмиссии стрептококка группы В от матери ребенку. При написании обзора изучены научные публикации зарубежных и отечественных авторов из базы данных PubMed. В обзоре рассмотрены препараты выбора для проведения интранатальной антибиотикопрофилактики, их фармакодинамические и фармакокинетические особенности. При анализе детализирована проблема роста резистентности стрептококка группы В к антибактериальным препаратам. Отмечена антимикробная активность лактоферрина в минимальной ингибирующей концентрации 500 мкг/мл. Также в представленной работе отражены протективные и терапевтические эффекты перорального приема пробиотиков, содержащих Lactobacillus acidophilus, Lactobacillus salivarius, Lactobacillus rhamnosus GR - 1 и Lactobacillus reuteri RC - 14. На основании анализа можно сделать вывод, что пенициллин G и ампициллин оказывают наиболее выраженное бактерицидное действие против стрептококка группы В. При этом к наиболее частым побочным эффектам β-лактамных пенициллинов относят аллергическую реакцию с возможным развитием анафилактического шока. Ввиду этого, к антибиотикам группы резерва первой линии относят: цефазолин, клиндамицин и ванкомицин. Вместе с тем важно учитывать снижение терапевтической концентрации клиндамицина при изменении показателя альфа-1-кислого гликопротеина в крови матери и плода, нефротоксическое действие ванкомицина и перекрестную аллергическую реакцию цефазолина с антибиотиками группы пенициллинов. Перспективным направлением в решении проблемы стрептококка группы В является разработка новых стратегий профилактики перинатального инфицирования плода и новорожденного на основе более детального изучения эффектов лактоферрина и пробиотиков.</p></trans-abstract><kwd-group xml:lang="en"><kwd>group B streptococcus</kwd><kwd>neonatal infections</kwd><kwd>antibiotic sensitivity</kwd><kwd>antibiotic resistance</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>стрептококк группы В</kwd><kwd>неонатальные инфекции</kwd><kwd>антибиотикочувствительность</kwd><kwd>антибиотикорезистентность</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Phares CR, Lynfield R, Farley MM, Mohle-B oetani J, Harrison LH, Petit S, Craig AS, Schaffner W, Zansky SM, Gershman K, Stefonek KR, Albanese BA, Zell ER, Schrag SJ. Epidemiology of invasive group B streptococcal disease in the United States, 1999-2005. 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