نتایج جستجو برای: meca

تعداد نتایج: 1758  

Journal: :Journal of the Society of Materials Science, Japan 2008

Journal: :archives of clinical infectious diseases 0
fateh rahimi department of biology, faculty of science, university of isfahan, isfahan, ir iran; ,department of biology, faculty of science, university of isfahan, hezarjarib street, isfahan, ir iran majid bouzari department of biology, faculty of science, university of isfahan, isfahan, ir iran zohreh maleki department of pathology, tehran university of medical science, imam khomeini hospital, tehran, ir iran fermisk rahimi department of computer engineering, islamic azad university

background staphylococcus aureus is a major pathogen in hospital setting and in the community and causes a wide range of diseases. mrsa infection has recently become a serious problem in anti-microbial chemotherapy. the aim of the study was to detect and analyze the antibiotic diversity and isolation of methicillin resistance gene (meca) of s. aureus isolated from tehran hospitals as a rapid an...

2012
André Fleer Marieke A. C. Hemels Armand Paauw Tannette G. Krediet

Objectives: Vancomycin use for neonatal coagulase-negative staphylococci (CoNS) sepsis is based on a high CoNS carriage rate of mecA, encoding penicillin-binding protein (PBP)-2a, with low affinity for, and associated with resistance to, b-lactam antibiotics. The relationship between mecA gene carriage, phenotypic expression of the gene by PBP-2a production and in vitro resistance to the b-lact...

Journal: :The Journal of antimicrobial chemotherapy 2001
E Petinaki A Arvaniti G Dimitracopoulos I Spiliopoulou

The distribution of the mec genes mecA, mecR1 and mecI that regulate the expression of methicillin resistance was investigated by PCR in 145 staphylococci of hospital origin. Determination of alterations and deletions in parts of the genes was achieved using 11 sets of primers in combined reactions. Methicillin-resistant Staphylococcus epidermidis strains appeared relatively stable, with 57.9% ...

Journal: :American journal of infection control 2013
Elham Jannati Mohsen Arzanlou Shahram Habibzadeh Saeed Mohammadi Parisa Ahadi Behnam Mohammadi-Ghalehbin Hadi Peeri Dogaheh Solmaz Dibah Ebrahim Kazemi

Methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of health care-associated infections. In this study, a total of 173 nurses was screened for S aureus nasal colonization, of which 8 (4.6%) were MRSA carriers. Among the MRSA isolates, 6 were mecA positive and oxacillin resistant, and 2 were mecA-positive, oxacillin-susceptible (OS-MRSA) strains. Reports of the OS-MRSA strains a...

Journal: :Antimicrobial agents and chemotherapy 2013
Ewan M Harrison Gavin K Paterson Matthew T G Holden Fiona J E Morgan Anders Rhod Larsen Andreas Petersen Sabine Leroy Sarne De Vliegher Vincent Perreten Lawrence K Fox Theo J G M Lam Otlis C Sampimon Ruth N Zadoks Sharon J Peacock Julian Parkhill Mark A Holmes

Recently, a novel variant of mecA known as mecC (mecA(LGA251)) was identified in Staphylococcus aureus isolates from both humans and animals. In this study, we identified a Staphylococcus xylosus isolate that harbors a new allotype of the mecC gene, mecC1. Whole-genome sequencing revealed that mecC1 forms part of a class E mec complex (mecI-mecR1-mecC1-blaZ) located at the orfX locus as part of...

2012
Reza Nejatbakhsh Maryam Kabir-Salmani Eva Dimitriadis Ahmad Hosseini Robabeh Taheripanah Yousef Sadeghi Yoshihiro Akimoto Mitsutoshi Iwashita

BACKGROUND Apical surfaces of human endometrial epithelium and endothelium are key elements for the initiation of molecular interactions to capture the blastocyst or leukocyte, respectively. The L-selectin adhesion system has been strongly proposed to play an important role in the initial steps of trophoblast adhesion and promotion of integrin-dependent processes, ultimately culminating in the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده دامپزشکی 1392

استافیلوکوکوس آرئوس و استافیلوکوکوس سودواینترمدیوس، استافیلوکوکوس های کوآگولاز مثبتی هستند که بیماری های مختلفی را در انسان و حیوانات سبب می شوند. بروز مقاومت های آنتی بیوتیکی به خصوص در سویه های مقاوم به متی سیلین این باکتری ها احتمال شکست درمان را افزایش داده و همچنین به عنوان تهدیدی برای سلامت جامعه انسانی محسوب می شود. هدف از مطالعه حاضر بررسی شیوع استافیلوکوکوس های کوآگولاز مثبت مقاوم به م...

Journal: :The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases 2011
Eliezer Menezes Pereira Ricardo Pinto Schuenck Simone Aranha Nouér Kátia Regina Netto Dos Santos

Staphylococcus lugdunensis is a rare cause of severe infections and clinical manifestations are similar to those related to S. aureus infection. We describe a hospital-acquired bacteremia due to methicillin-resistant Staphylococcus lugdunensis, misidentified as methicillin-resistant S. aureus. The oxacillin MIC was 16 µg/mL and the mecA gene and SCCmec type V were determined by PCR. Although tr...

Journal: :Antimicrobial agents and chemotherapy 2011
Marta Colomer-Lluch Lejla Imamovic Juan Jofre Maite Muniesa

This study evaluates the occurrence of bacteriophages carrying antibiotic resistance genes in animal environments. bla(TEM), bla(CTX-M) (clusters 1 and 9), and mecA were quantified by quantitative PCR in 71 phage DNA samples from pigs, poultry, and cattle fecal wastes. Densities of 3 to 4 log(10) gene copies (GC) of bla(TEM), 2 to 3 log(10) GC of bla(CTX-M), and 1 to 3 log(10) GC of mecA per mi...

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