<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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">Epidemiology and Infectious Diseases</journal-id><journal-title-group><journal-title xml:lang="en">Epidemiology and Infectious Diseases</journal-title><trans-title-group xml:lang="ru"><trans-title>Эпидемиология и инфекционные болезни</trans-title></trans-title-group></journal-title-group><issn publication-format="print">3034-2007</issn><issn publication-format="electronic">3034-2015</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">40789</article-id><article-id pub-id-type="doi">10.17816/EID40789</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>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">C. difficile toxins A and B from the clinician's viewpoint</article-title><trans-title-group xml:lang="ru"><trans-title>Токсины А и В C. Difficile глазами клинициста</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gyulazyan</surname><given-names>N. M</given-names></name><name xml:lang="ru"><surname>Гюлазян</surname><given-names>Наира Мартуновна</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор мед. наук, проф. каф. инфекционных болезней</p></bio><email>g.naira@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Belaya</surname><given-names>O. F</given-names></name><name xml:lang="ru"><surname>Белая</surname><given-names>Ольга Федоровна</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор мед. наук, проф., зав. лаб. по изучению токсических и септических состояний</p></bio><email>ofbelaya@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Malov</surname><given-names>V. A</given-names></name><name xml:lang="ru"><surname>Малов</surname><given-names>Валерий Анатольевич</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор мед. наук, проф. каф. инфекционных болезней</p></bio><email>valmalov@list.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pak</surname><given-names>S. G</given-names></name><name xml:lang="ru"><surname>Пак</surname><given-names>Сергей Григорьевич</given-names></name></name-alternatives><bio xml:lang="ru"><p>член-корр. РАМН, доктор мед. наук, проф., засл. зав. каф. инфекционных болезней</p></bio><email>infection_mma@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Yerevan State Medical University after Mkhitar Heratsi</institution></aff><aff><institution xml:lang="ru">Ереванский государственный медицинский университет им. М. Гераци Министерства образования и науки Армении</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный медицинский университет им. И.М. Сеченова Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2013</year></pub-date><volume>18</volume><issue>6</issue><issue-title xml:lang="en">NO6 (2013)</issue-title><issue-title xml:lang="ru">№6 (2013)</issue-title><fpage>42</fpage><lpage>48</lpage><history><date date-type="received" iso-8601-date="2020-07-23"><day>23</day><month>07</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Eco-vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, ООО "Эко-вектор"</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="en">Eco-vector</copyright-holder><copyright-holder xml:lang="ru">ООО "Эко-вектор"</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://rjeid.com/1560-9529/article/view/40789">https://rjeid.com/1560-9529/article/view/40789</self-uri><abstract xml:lang="en"><p>To date, C. difficile is considered as an etiological factor in pseudomembranous colitis and antibiotic-associated diarrhea as well as the main cause of nosocomial diarrhea spread mainly in economically developed countries. The complexity of laboratory and experimental studies of infection is what the microbe cannot be genetically manipulated. At the same time, the most of hospital and municipal laboratories have no the possibility to carry out research on detection C. difficile toxins, that limits the resource of real estimation of the spread of the disease in the Russian Federation.</p></abstract><trans-abstract xml:lang="ru"><p>На сегодняшний день C. difficile рассматривается как этиологический фактор псевдомембранозного колита и антибиотико-ассоцированной диареи, а также как ведущая причина внутрибольничных диарей распространенных преимущественно в экономически развитых странах. Сложность лабораторно-экспериментального исследования инфекции заключается в том, что микроб не поддается генетическим манипуляциям. Вместе с тем большинство госпитальных и муниципальных лабораторий не имеют возможности проводить исследования по обнаружению токсинов C. difficile, что ограничивает возможности истинной оценки распространения этого заболевания в РФ.</p></trans-abstract><kwd-group xml:lang="en"><kwd>acute intestinal infections</kwd><kwd>pathogenic mechanisms of action of clostridial toxins</kwd><kwd>pseudomembranous colitis</kwd><kwd>antibiotic-associated diarrhea</kwd><kwd>detection of clostridial toxins</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>острые кишечные инфекции</kwd><kwd>патогенетические механизмы действия токсинов клостридий</kwd><kwd>псевдомембранозный колит</kwd><kwd>антибиотико-ассоцированная диарея</kwd><kwd>детекция клостридиальных токсинов</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Вертиев Ю.В. Бактериальные токсины: Биологическая сущность и происхождение. Журнал микробиологии, эпидемиологии и иммунобиологии. 1996; 3: 43-6.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Гюлазян Н.М., Белая О.Ф., Белый Ю.Ф., Пак С.Г. Выявление маркеров токсинов клостридий при различных вариантах течения острых кишечных инфекций. Клиническая лабораторная диагностика. 2008; 3: 46-9.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Малов В.А. Антибиотикоассоциированные диареи. Клиническая микробиология и антимикробная химиотерапия. 2002; 1: 22-32.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Finlay B.B., Falkow S. Common themes in microbial pathogenicity revisited. Microbiol. Mol. Biol. Rev. 1997; 61: 136-69.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Schmitt C.K., Meysick K.C., O’Brien A. Bacterial toxins: friends or foes? Emerg. Infect. Dis. 1999; 5 (2): 224-34.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Brito G.A., Fujji J., Carneiro-Filho B.A et al. Mechanism of Clostridium difficile toxin A-induced apoptosis in T84 cells. J. Infect. Dis. 2002; 186: 1438-47.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Bartlett J.G., Gerding D.N. Clinical recognition and diagnosis of Clostridium difficile infection. Clin. Infect. Dis. 2008; 46 (Suppl. 1): S12-8.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Hatheway C. L., Toxigenic Clostridia. Clin. Microbiol. Rev. 1990; 66-98.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Wistrom J., Norrby S.R., Myhre E.B. Frequency of antibiotic-associated diarrhoea in 2462 antibiotic-treated hospitalized patients; a prospective study. J. Antimicrob. Chemother. 2001; 47: 43-50.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Kyne L., Hamel M.B., Polavaram R., Kelly C.P. Health care costs and mortality associated with nosocomial diarrhea due to Clostridium difficile. Clin. Infect. Dis. 2002; 34: 346-53.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Wilkins T.D., Lyerly. D.M. Clostridium difficile testing: after 20 years, still challenging. J. Clin. Microbiol. 2003; 41: 531-4.</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Johnson S., Kent S.A., O’Leary K.J. et al. Fatal pseudomembranous colitis associated with a variant Clostridium difficile strain not detected by toxin A immunoassay. Ann. Intern. Med. 2001; 135: 434-8.</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Rupnik M., Kato N., Grabnar M., Kato H. New types of toxin A-negative, toxin B-positive strains among Clostridium difficile isolates from Asia. J. Clin. Microbiol. 2003; 41: 1118-25.</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Cohen S.H., Tang Y.J., Silva J. Jr. Analysis of the pathogenicity locus in Clostridium difficile strains. J. Infect. Dis. 2000; 181: 659-63.</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Mani N., Dupuy B. Regulation of toxin synthesis in Clostridium difficile by an alternative RNA polymerase sigma factor. Proc. Natl. Acad. Sci. USA. 2001; 98: 5844-9.</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Onderdonk A.B., Lowe B.R., Bartlett J.G. Effect of environmental stress on Clostridium difficile toxin levels during continuous cultivation. Appl. Environ. Microbiol. 1979; 38: 637-41.</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Just I., Hoffman F. et al. Inactivation of Ras by Clostridium sordellii lethal toxin-catalyzed glucosylation. J. Biol. Chem. 1996; 271: 10 149-53.</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Tucker K.D., Wilkins T.D. Toxin A of Clostridium difficile binds to the human carbohydrate antigens I, X, and Y. Infect. and Immun. 1991; 59: 73-8.</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Krivan H.C., Clark G.F., Smith D.F., Wilkins T.D. Cell surface binding site for Clostridium difficile enterotoxin: evidence for a glycoconjugate containing the sequence Gala1-3Galß1-4GlcNAc. Infect. and Immun. 1986; 53: 573-81.</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Smith J.A., Cooke D.L., Hyde S., Borriello S.P, Long R.G. Clostridium difficile toxin A binding to human intestinal epithelial cells. J. Med. Microbiol. 1997; 46: 953-8.</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Florin I., Thelestam M. Internalization of Clostridium difficile cytotoxin into cultured human lung fibroblasts. Biochim. Biophys. Acta. 1983; 763: 383-92.</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Florin I., Thelestam M. Lysosomal involvement in cellular intoxication with Clostridium difficile toxin B. Microb. Pathog. 1986; 1: 373-85.</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Pfeifer G., Schirmer J., Leemhuis J. et al. Cellular uptake of Clostridium difficile toxin B. Translocation of the N-terminal catalytic domain into the cytosol of eukaryotic cells. J. Biol. Chem. 2003; 278: 44 535-41.</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Mitchell M.J., Laughon B.E., Lin S. Biochemical studies on the effect of Clostridium difficile toxin B on actin in vivo and in vitro. Infect. and Immun. 1987; 55: 1610-5.</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Wedel N., Toselli P., Pothoulakis C. et al. Ultrastructural effects of Clostridium difficile toxin B on smooth muscle cells and fibroblasts. Exp. Cell Res. 1983; 148: 413-22.</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>Giesemann T., Egerer M., Jank T., Aktories K. Processing of Clostridium difficile toxins. J. Med. Microbiol. 2008; 57: 690-6.</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Jank T., GiesemmanT., Aktories K. Rho-glucosylating Clostridium difficile toxins A and B: new insights into structure and function. Glycobiology. 2007; 17 (4): 15S-22.</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>Qa’Dan M., Ramsey M., Daniel J. et al. Clostridium difficile toxin B activates dual caspase-dependent and caspase-independent apoptosis in intoxicated cells. Cell. Microbiol. 2002. 4: 425-34.</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>Souza M.H., Melo-Filho A.A., Rocha M.F. et al. The involvement of macrophage-derived tumour necrosis factor and lipooxygenase products on the neutrophil recruitment induced by Clostridium difficile toxin B. Immunology. 1997; 91: 281-8.</mixed-citation></ref><ref id="B30"><label>30.</label><mixed-citation>Shoshan M.C., Florin I., Thelestam M. Activation of cellular phospholipase A2 by Clostridium difficile toxin B. J. Cell. Biochem. 1993; 52: 116-24.</mixed-citation></ref><ref id="B31"><label>31.</label><mixed-citation>Chen M.L., Pothoulakis C., LaMont J.T. Protein kinase C signaling regulates ZO-1 translocation and increased paracellular flux of T84 colonocytes exposed to Clostridium difficile toxin A. J. Biol. Chem. 2002; 277: 4247-54.</mixed-citation></ref><ref id="B32"><label>32.</label><mixed-citation>Flegel W.A., Müller F., Däubener W. et al. Cytokine response by human monocytes to Clostridium difficile toxin A and toxin B. Infect. and Immun. 1991; 59: 3659-66.</mixed-citation></ref><ref id="B33"><label>33.</label><mixed-citation>He D., Sougioultzis S., Hagen S. et al. Clostridium difficile toxin A triggers human colonocyte IL-8 release via mitochondrial oxygen radical generation. Gastroenterology. 2002; 122: 1048-57.</mixed-citation></ref><ref id="B34"><label>34.</label><mixed-citation>Warny M., Keates A.C., Keates S. et al. p38 MAP kinase activation by Clostridium difficile toxin A mediates monocyte necrosis, IL-8 production, and enteritis. J. Clin. Invest. 2000; 105: 1147-56.</mixed-citation></ref><ref id="B35"><label>35.</label><mixed-citation>Castagliuolo I., Kelly C.P., Qiu B.S. et al. IL-11 inhibits Clostridium difficile toxin A enterotoxicity in rat ileum. Am. J. Physiol. 1997; 273: G333-41.</mixed-citation></ref><ref id="B36"><label>36.</label><mixed-citation>He D., Hagen S.J., Pothoulakis C. et al. Clostridium difficile toxin A causes early damage to mitochondria in cultured cells. Gastroenterology. 2000; 119: 139-50.</mixed-citation></ref><ref id="B37"><label>37.</label><mixed-citation>Savidge T.C., Pan W.H., Newman P. et al. Clostridium difficile toxin B is an inflammatory enterotoxin in human intestine. Gastroenterology. 2003; 125: 413-20.</mixed-citation></ref><ref id="B38"><label>38.</label><mixed-citation>Siffert J.-C., Müller Ch.D., Dumont S. et al. CD14 expression by human mononuclear phagocytes is modulated by Clostridium difficile toxin B. Microb. Infect. 1999; 1: 1159-62.</mixed-citation></ref><ref id="B39"><label>39.</label><mixed-citation>Samra Z., Talmor S., Bahar J. High prevalence of toxin A-negative toxin B-positive Clostridium difficile in hospitalized patients with gastrointestinal disease. Diagn. Microbiol. Infect. Dis. 2002; 43: 189-92.</mixed-citation></ref><ref id="B40"><label>40.</label><mixed-citation>Lyerly D.M., Saum K.E., MacDonald D.K., Wilkins T.D. Effects of Clostridium difficile toxins given intragastrically to animals. Infect. and Immun. 1985; 47: 349-52.</mixed-citation></ref><ref id="B41"><label>41.</label><mixed-citation>McDonald L.C., Killgore G.E., Thompson A. et al. An epidemic, toxin gene-variant strain of Clostridium difficile. N. Engl. J. Med. 2005; 353: 2433-41.</mixed-citation></ref><ref id="B42"><label>42.</label><mixed-citation>Blanckaert K., Coignard B., Grandbastein B. et al. Update on Clostridium difficile infections. Rev. Med. Interne. 2008; 29 (3): 209-14.</mixed-citation></ref><ref id="B43"><label>43.</label><mixed-citation>Loo V.G., Poirier L., Miller M.A. et al. A predominantly clonal multi institutional outbreak of Clostridium difficile-associated diarrhea with high morbidity and mortality. N. Engl. J. Med. 2005; 353: 2442-9.</mixed-citation></ref><ref id="B44"><label>44.</label><mixed-citation>Warny M., Pepin J., Fang A. et al. Toxin production by an emerging strain of Clostridium difficile associated with outbreaks of severe disease in North America and Europe. Lancet. 2005; 366: 1079-84.</mixed-citation></ref><ref id="B45"><label>45.</label><mixed-citation>Fenner L., Widmer A.F., Goy G. et al. Rapid and reliable diagnostic algorithm for detection of Clostridium difficile. J. Clin. Microbiol. 2008; 46 (1): 328-30.</mixed-citation></ref><ref id="B46"><label>46.</label><mixed-citation>Sloan L.M., Duresko B.J., Gustafson D.R., Rosenblatt J.E. Comparison of real time PCR for detection of the tcdC gene with four toxin immunoassays and culture in diagnosis of Clostridium difficile infection. J. Clin. Microbiol. 2008; 46 (6): 1996-2001.</mixed-citation></ref><ref id="B47"><label>47.</label><mixed-citation>Kim H., Jeong S.H., Kim M., Lee Y., Lee K. Detection of Clostridium difficile toxin A/B genes by multiplex real-time PCR for the diagnosis of C. difficile infection. J. Med. Microbiol. 2012; 61 (2): 274-7.</mixed-citation></ref><ref id="B48"><label>48.</label><mixed-citation>Ylisiurua P., Koskela M., Vainio O., Tuokko H. Comparison of antigen and two molecular methods for the detection of Clostridium difficile toxins. Scand. J. Infect. Dis. 2013; 45 (1): 19-25.</mixed-citation></ref><ref id="B49"><label>49.</label><mixed-citation>Snell H., Ramos M., Longo S., John M., Hussain Z. Performance of the TechLab C. DiFF CHEK-60 enzyme immunoassay (EIA) in combination with the C. difficile Tox A/B II EIA kit, the Triage C. difficile panel immunoassay, and a cytotoxin assay for diagnosis of Clostridium difficile-associated diarrhea. J. Clin. Microbiol. 2004; 42 (10): 4863-5.</mixed-citation></ref></ref-list></back></article>
