نتایج جستجو برای: vana و vanb
تعداد نتایج: 761396 فیلتر نتایج به سال:
We evaluated the ability of the new VITEK 2 version 4.01 software to identify and detect glycopeptide-resistant enterococci compared to that of the reference broth microdilution method and to classify them into the vanA, vanB, vanC1, and vanC2 genotypes. Moreover, the accuracy of antimicrobial susceptibility testing with agents with improved potencies against glycopeptide-resistant enterococci ...
Recent cases of infections caused by glycopeptide-resistant enterococci (GRE) have highlighted the emergence of these organisms in the Republic of South Africa. During May 1998 we conducted a prevalence study in four hospitals in Johannesburg and obtained 184 rectal swabs from patients identified as being at high risk for GRE colonization. Twenty enterococcal isolates showing various glycopepti...
Objectives: Early detection of vancomycin resistant enterococci (VRE) colonization in hospitalized patients plays an important role in controlling enterococcal infections. For this purpose, the detection of VRE from rectal swab specimens can be performed with various methods. Methods: In this study, VRE colonization in the rectal swab samples of patients from intensive care units, burn unit, an...
The activity of nitrofurantoin was tested against 300 isolates of Enterococcus faecium, Enterococcus faecalis, and Enterococcus gallinarum. No isolates tested were resistant to nitrofurantoin (MIC, >/=128 microg/ml), including vancomycin-resistant E. faecium isolates with vanA- and vanB-positive genotypes and vancomycin-resistant E. gallinarum isolates. We conclude that nitrofurantoin may provi...
We compared ChromID VRE and Brilliance VRE media for the detection of vancomycin-resistant enterococci (VRE). Using a panel of 28 enterococcal isolates, 10 vanA Enterococcus faecium and three vanA Enterococcus faecalis isolates grew as per manufacturers' instructions whilst growth of two vanC and eight vancomycin-susceptible enterococci was inhibited on both media. Important differences were no...
چکیده زمینه و هدف : پروتئین لاکتوفرین(lactoferrin(lf)) دارای اثرات ضدمیکروبی اثبات شده ای است. هدف از این مطالعه بررسی تأثیر لاکتوفرین روی حداقل غلظت مهاری) minimum inhibitory concentration (mic))وانکومایسین در سویه های انتروکوک مقاوم به وانکومایسین دارای ژنهای مقاومت vana و vanb بود. ﻣﻮﺍﺩ ﻭ ﺭﻭﺵﻫﺎ: در این مطالعه مقطعی ، پس از جداسازی و تشخیص265 سویه انتروکوک از نمونه های بالینی ، mic وانکومایسی...
Background & Aims : After Vancomycin resistant Enterococci (VRE) was first detected in the mid 1980s, VRE spread rapidly worldwide and became one of the most serious problems in many hospitals specially in hospitalized patients. Among different enterococcal species Enterococcus feacalis and Enterococus faecium are the leading causes of life threatening infections. VanA/B/C genes are respons...
background and objectives: infection with vancomycin-resistant enterococci (vre) has caused a therapeutic problem. vana and vanb resistant types are the predominant phenotypes among vancomycin resistant enetrococci. transposon 1546 (tn1546) harboring the vana gene cluster, plays an important role in the horizontal transfer of vana gene. in this study, we examined the phenotypic and genotypic di...
زمینه اهداف: در دو دهه اخیر،انتروکک ها مقاومت گسترده ای به تعدادی از آنتی بیوتیک ها کسب کرده اند که این امر سبب پیچیدگی در درمان عفونت های ناشی از باکتریها گردیده است. امروزه انتروکوکهای مقاوم به غلظت های گوناگونی از ونکومایسیس به طور تصاعدی از سراسر دنیا گزارش می شود. ژن های vanA و vanB در انتروکوکها مسئول مقاومت به غلظت بالایی از ونکومایسیس می باشد. در تحقیق حاضر از مقاومت دارویی گونه های مخ...
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