Распространённость и молекулярная эпидемиология грамотрицательных бактерий, продуцирующих металло-бета-лактамазы, в России, Беларуси и Казахстане

Клиническая Микробиология и Антимикробная Химиотерапия. 2012; 14(2):132-152

​ Эйдельштейн М.В., Склеенова Е.Ю., Шевченко О.В., Тапальский Д.В., Азизов И.С., Д’соуза Дж.В., Тимохова А.В., Сухорукова М.В., Козырева В.К., Сафронова Е.В., Астахова М.В., Карпов И.А., Шамаева С.Х., Абрамова Н.В., Гординская Н.А., Козлов Р.С., исследовательская группа «МЕТАЛЛ»
грамотрицательный P. aeruginosa резистентность металло-бета-лактамазы
Раздел
Антибиотикорезистентность
Тип
Журнальная статья
Публикация
Клиническая Микробиология и Антимикробная Химиотерапия. 2012; 14(2):132-152

Аннотация

В настоящей работе представлены данные исследования распространённости и молекулярной эпидемиологии грамотрицательных бактерий, продуцирующих металло-β-лактамазы (МБЛ), в России (в 1998-2010 гг.), Беларуси и Казахстане (в 2005-2010 гг.). Анализ нозокомиальных штаммов, выделенных в рамках нескольких многоцентровых эпидемиологических исследований в России, выявил стремительное нарастание доли МБЛ-положительных изолятов Pseudomonas aeruginosa (от 4,5 до 20,3% в период между 2002-2004 и 2006-2007 гг.), которое в основном было связано с эпидемическим распространением клона P. aeruginosa ST235 VIM-2. Циркуляция данного клона отмечена не только на всей территории России, но и в нескольких городах Беларуси и Казахстана. Доля ST235 среди всех исследованных МБЛ-продуцирующих изолятов P. aeruginosa (n=711) составила 96,3%, остальные изоляты относились к неродственным сиквенс-типам: ST234 (3,4%), ST244 (0,1%) и ST270 (0,1%). Большинство изолятов были чувствительны только к полимиксинам. У P. aeruginosa гены МБЛ — VIM-2 (99,6%) и нового варианта IMP-1 (Glu59/Lys) — IMP-30 (0,4%), найдены в составе интегронов пяти различных типов. В двух случаях установлен вероятный перенос гена blaVIM-2 в составе наиболее распространённого Tn5090-ассоциированного интегрона от ST235 к ST234 и ST244. Помимо P. aeruginosa, продукция МБЛ (VIM-4) выявлена у единственного штамма Escherichia coli.

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