نتایج جستجو برای: oxa 58
تعداد نتایج: 72456 فیلتر نتایج به سال:
BACKGROUND The systemic surveillance of imipenem-resistant Acinetobacter baumannii (IRAB) from multicenters in Taiwan revealed the emergence of isolates with bla(OXA-72). This study described their genetic makeup, mechanism of spread, and contribution to carbapenem resistance. METHODS Two hundred and ninety-one non-repetitive isolates of A. baumannii were collected from 10 teaching hospitals ...
We investigated the mechanisms involved in imipenem resistance in 23 clinical strains of Acinetobacter baumannii. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis showed the presence of a 30-kDa protein in imipenem-intermediate A. baumannii (IIAB) and imipenem-resistant A. baumannii (IRAB) strains; this protein was almost undetectable in imipenem-susceptible A. baum...
Introduction: Acinetobacter baumannii is a major cause of nosocomial infections which affect mainly disabled patients in intensive care units. The bacteria may acquire resistance to antibiotics and hence can seriously endanger antibiotic therapy. The most important problem facing treatment of A. baumannii is increasing reports of resistance to a wide range of antibiotics, including carbapenems,...
The six-membered thia-zine ring in the title compound, C16H15NOS, adopts a half-chair conformation, with the S atom forming the back of the chair. The base of the chair has a slight twist reflected in the r.m.s. deviation (0.0756 Å) of those five atoms from the plane defined by them. The phenyl substituents are almost perpendicular to each other [dihedral angle 87.06 (9)°]. In the crystal, mol-...
The beta-lactamase stability and inhibitory activity of 1-oxa cephalosporin, (6R,7R)-7-[[carboxy(4-hydroxyphenyl)acetyl]amino]-7-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, was investigated and compared to that of cefoxitin and cefotaxime. There was no detectable beta-lactamase hydrolysis of 1-oxa cephalosporin, cefotaxime and ...
BACKGROUND Acinetobacter baumannii is an important hospital-acquired pathogen in healthcare facilities that frequently causes bacteraemia and ventilator-associated pneumonia in intensive care units. Acinetobacter baumannii can be isolated from various sites in the hospital environment like medical equipment, bed linen, medical personnel and indwelling catheters. It is difficult to treat A. baum...
INTRODUCTION Oxaliplatin (Oxa) is widely used in metastatic colorectal cancer (mCRC), but currently there are not valid predictors of response to this drug. In the control arms both of OPUS and PRIME studies Oxa seems more active in patients with mCRC with mutated (mt) KRAS than in those with wild type (wt) KRAS. Recently we have retrospectively confirmed this suggestion, therefore we have hypo...
OBJECTIVES Recently, resistance to extended-spectrum cephalosporins due to acquired beta-lactamases has been reported in Pseudomonas aeruginosa. The aim of this study was to investigate the prevalence of Ambler class A and D beta-lactamases and their extended-spectrum derivatives and antimicrobial susceptibilities of P. aeruginosa isolated from various parts of Korea. METHODS A total of 252 c...
مقدمه مهم ترین عامل مقاومت به آنتی بیوتیک های خانواده بتالاکتام در اسینتوباکترها، تولید آنزیم های بتالاکتاماز وسیع الطیف ( ESBL )می باشد و OXA یکی از شایع ترین این آنزیم ها است. هدف از این مطالعه تعیین فراوانی بتالاکتامازهای وسیع الطیف (ESBL) تیپهای OXA-2 وOXA-10 در سویه های اسینتوباکتر جدا شده از بیماران شهر زاهدان می باشد. روش کار این مطالعه توصیفی مقطعی بر 100 نمونه اسینتوباکتر که ط...
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