نتایج جستجو برای: aac 6
تعداد نتایج: 958002 فیلتر نتایج به سال:
سابقه و هدف: استافیلوکوکوسها یکی از رایجترین عوامل عفونتهای بیمارستانی به شمار میروند. آمینوگلیکوزیدها اغلب به صورت ترکیب با بتالاکتامها یا گلیکوپپتیدها در درمان اندوکاردیت و باکتریمی ناشی از استافیلوکوکوسها استفاده میشوند. مکانیسم اصلی مقاومت آمینوگلیکوزیدی در استافیلوکوکوسها غیر فعالسازی دارو به وسیله آنزیمهای تغییردهنده آمینوگلیکوزیدی سلولی میباشد. مواد و روشها: 50 ایزوله...
Abstract Background and purpose: Staphylococcus aureus is one of the major causes of community and hospital-acquired infections. Aminoglycosides are potent bactericidal agents that are often used in combination with beta-lactam or glycopeptide in treatment of staphylococcal infections. The aim of this study was to investigate the prevalence of the aminoglycoside modifying enzyme aac(6΄)-Ie/aph(...
Background: Vancomycin-resistant enterococci (VRE) are recognized as nosocomial pathogens with increased importance in recent years. These bacteria frequently isolated from patients admitted to intensive care units (ICUs). Enterococcal pathogenicity is enhanced by different antibiotic resistance and virulence determinants. Objectives: The present study aimed assess the prevalence of genes encod...
This study sought to describe speech-language interventions for preschool-aged children who required augmentative and alternative communication (AAC) as provided by AAC experts and by general speech-language pathologists who were not AAC experts. The study also examined the types of technology used in AAC intervention by AAC experts. A retrospective chart review was conducted in which clinic re...
Recently, the MPEG committee has completed the development of a new audio coding standard, the MPEG-4 Advanced Audio Coding-Enhanced Low Delay (AAC-ELD). The stateof-the-art MPEG audio coding standards, such as MPEG-4 AAC Low Complexity (AAC-LC), High Efficiency AAC (HE-AAC) and AAC Low Delay (AAC-LD), utilize for the time-tofrequency transformation of an audio block and vice versa, the well kn...
This work describes the characterization of plasmid-mediated quinolone-resistance (PMQR) genes from a multicenter study of ESBL-producing Enterobacteriaceae pediatric clinical isolates in Mexico. The PMQR gene-positive isolates were characterized with respect to ESBLs, and mutations in the GyrA and ParC proteins were determined. The phylogenetic relationship was established by PFGE and the tran...
We previously reported an outbreak in a neurosurgery ward of catheter-associated urinary tract infection with multidrug-resistant (MDR) Pseudomonas aeruginosa strain IMCJ2.S1, carrying the 6'-N-aminoglycoside acetyltransferase gene [aac(6')-Iae]. For further epidemiologic studies, 214 clinical isolates of MDR P. aeruginosa showing resistance to imipenem (MIC >or= 16 microg/ml), amikacin (MIC >o...
The aim of this study was to investigate the mechanism underlying the drug resistance of Acinetobacter baumannii toward aminoglycosides. A total of 32 A. baumannii strains were identified by molecular identification and subsequently isolated. The isolates were then amplified by polymerase chain reaction to analyze the 9 aminoglycoside-modifying enzyme genes and 7 16S rRNA methylase genes. Five ...
BACKGROUND The composite summary score (range, 0-24) of abdominal aortic calcification (AAC) devised by Kauppila et al is a simple method of assessing AAC severity. However, few studies have been conducted to determine an optimal AAC cutoff score for the prediction of mortality or to investigate the relation between mineral metabolism and AAC progression using the scoring system. METHODS The ...
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