نتایج جستجو برای: ژن blactx
تعداد نتایج: 16557 فیلتر نتایج به سال:
BACKGROUND Escherichia coli producing ESBL/AmpC enzymes are unwanted in animal production chains as they may pose a risk to human and animal health. Molecular characterization of plasmids and strains carrying genes that encode these enzymes is essential to understand their local and global spread. OBJECTIVES To investigate the diversity of genes, plasmids and strains in ESBL/AmpC-producing E....
infections. The spread of CTXM–positive bacteria considerably changes the way we think about treating community-acquired infections and limits the oral antibiotics that may be administered. This finding has major implications for treating children, who should not be given fluoroquinolones and tetracyclines. The observation that different blaCTX-M alleles, located on plasmids of different sizes,...
چکیده سابقه و هدف: با توجه به مصرف زیاد و بی رویه مواد ضد میکروبی و عوارض شناخته شده آن و کسب مقاومت های جدید به واسطه آنزیم های بتالاکتاماز و نیز محدود بودن اطلاعات در خصوص مکانیزم ژنی مقاومت به این مواد در کشور ، این تحقیق به منظورتعیین میزان مقاومت و یا حساسیت ایزوله های اسینتوباکتر بومانی (mdr) نسبت به گلوتارآلدئید درسال 1392در بخش های ویژه بیمارستان های منتخب تهران انجام گرفت. روش بررسی: ت...
Abstract Background and objectives: Beta-lactamase enzymes are the most causes of resistance to antibiotics among gram-negative bacteria. Nowadays, Infections due to ESBLs are being increased throughout the world and is considered as a new burden to the health systems. This study aimed at determining the sensitivity pattern of E.coli isolates to beta-lactam antibiotics, and investigating the pr...
BACKGROUND The study investigated the presence of CTX-M-15 type extended spectrum beta-lactamases (ESBL), compared their genetic arrangements and plasmid types in gram negative isolates of hospital and food origin in north-east India. From September 2013 to April 2014, a total of 252 consecutive, non-duplicate clinical isolates and 88 gram negative food isolates were selected. Phenotypic and mo...
5 Abstract Aim: To analyse the occurrence of bla genes (blaIMP, blaVIM, blaGIM, blaSIM, blaSPM, blaPER, blaKPC, and blaOXA) responsible for carbapenemresistance, as well as the presence of cephalosporin-resistance genes (blaCTX-M, blaTEM, blaSHV and blaampC ) by polymerase chain reactions (PCRs). Methods: The study was performed on routine samples subjected to culture and antibiotics susceptibi...
Within the ESBL family the most common genes are temoneira (blaTEM) and sulfhydryl variable (blaSHV) with increasing reports of cefotaximase (blaCTX-M) [4]. The blaSHV and the blaTEM subgroups arise from mutational changes due to point mutations in the genes resulting in subtypes. Examples include blaSHV which differs from blaSHV-1 due to a single mutation of an amino acid from glycine to serin...
مقدمه: بتالاکتامازهای طیف وسیع(esbl) باعث مقاومت برخی از باکتری ها به طیف وسیعی از آنتی بیوتیک های بتالاکتام می شوند. هدف از مطالعه حاضر بررسی مقاومت آنتی بیوتیکی جدایه های بالینی سودوموناس آئروجینوزا در مشهد و ردیابی esbl تیپ ctx-m در میان آن ها بود. مواد و روش ها: در این تحقیق باکتری های سودوموناس آئروجینوزا از نمونه های مختلف(زخم، ادرار، گوش، ریه، مایع صفاق و سایر مایعات بدن) بیماران بستری د...
The present work reports the study of the antimicrobial activity of four quinoxaline N,N-dioxide: quinoxaline 1,4-dioxide, 2-methylquinoxaline 1,4-dioxide, 6chloro-2,3-dimethylquinoxaline 1,4-dioxide and 3-benzoyl-2-methylquinoxaline 1,4dioxide against Geobacillus stearothermophilus ATCC 10149, Escherichia coli ATCC 25922, Escherichia coli HB101, Escherichia coli (blaTEM, blaCTX-M) and Salmonel...
Plasmid pKP12226 was extracted and analyzed from a CTX-M-15-producing Klebsiella pneumoniae sequence type 11 (ST11) isolate collected in South Korea. The plasmid represents chimeric characteristics consisting of a pIP1206-like backbone and lysogenized phage P1-like sequences. It bears a resistance region that includes resistance genes to several antibiotics and is different from previously char...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید