نتایج جستجو برای: ermc
تعداد نتایج: 145 فیلتر نتایج به سال:
We cloned a Streptomyces coelicolor A3(2) DNA fragment which directed synthesis of a brown pigment, presumably a shunt product in the actinorhodin biosynthetic pathway, on the plasmid vector pU41 in Streptomyces lividans. The pigment production was observed only when the DNA fragment was inserted downstream from a functional promoter sequence. By subcloning the fragment together with in vitro m...
BACKGROUND AND OBJECTIVES Resistance to macrolide can be mediated by erm and msrA genes in Staphylococcus aureus. There are the evidences that show erm genes may be causative agent of inducible or constitutive resistance. The aim of this study was to investigate the incidence of inducible clindamycin resistance and determine the most frequency of erm and msrA genes among S. aureus isolates. M...
conclusions the rate of imlsb in s. aureus isolates is relatively high in the northwest iran. since isolates with inducible resistance may mutate and change to constitutive resistance, to prevent clinical treatment failure, d-test should be performed along with routine antibiotic susceptibility tests. in this study, ermc gene was the predominant genetic determinant for the expression of mlsb re...
The aims of this study were to determine the prevalence and antibiotic resistance of Staphylococcus aureus isolated from bovine clinical mastitis in Varamin, Tehran Province, Iran. All of the isolated Staph. aureus were identified by morphology and culture and confirmed using the API Staph identification system (bioMérieux, Marcy-l'Étoile, France). Antibiotic resistance genes were detected by P...
Infections caused by staphylococci represent a medical concern, especially when related to biofilms located in implanted medical devices, such as prostheses and catheters. Unfortunately, their frequent resistance to high doses of antibiotics makes the treatment of these infections a difficult task. Moreover, biofilms represent a hot spot for horizontal gene transfer (HGT) by bacterial conjugati...
زمینه و هدف: ظهور سویههای مقاوم به آنتیبیوتیک باکتری استافیلوکوکوس اورئوس، چالش بزرگی در درمان عفونتهای ناشی از این باکتری ایجاد کرده و مقاومت القایی به کلیندامایسین نیز موجب نقص درمان شده است. این مطالعه با هدف شناسایی مقاومت القایی به کلیندامایسین در سویههای استافیلوکوکوس اورئوس جداشده از بیماران بستری در بیمارستانهای شهر تهران صورت گرفت. روش بررسی: این مطالعه به روش توصیفی بر روی 80 ایز...
BACKGROUND Staphylococcus aureus is a significant pathogen that can colonize the nares of different animals, causing a wide range of infections in various hosts. OBJECTIVES We intended to determine the prevalence of S. aureus in the nasal cavity of healthy ruminants and also to investigate the presence of antibiotic resistance genes. MATERIALS AND METHODS In the present study, healthy cattl...
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