نتایج جستجو برای: component leukocidin

تعداد نتایج: 618506  

Journal: :آزمایشگاه و تشخیص 0
سمیرا تاجیک samira tajik faculty of medical sciences, tarbiat modares university, tehran, iranدانشکده علوم پزشکی٬ دانشگاه تربیت مدرس شهین نجار پیرایه shahin najar peerayeh associate professor, department of bacteriologyدانشیار، گروه باکتری شناسی

methicillin-resistant staphylococcus aureus (mrsa) is a major cause of nosocomial infections all around the world. mrsas are usually present in health care centers and hospitals. nowadays methicillin-resistant mrsas in two groups of healthcare associated mrsa (ha_mrsa) and community associated mrsa (ca_mrsa)were studied. predisposing factors for ha_mrsa infections included hemodialysis, surgery...

2009
Carla Vignaroli Pietro E. Varaldo Alessandro Camporese

To the Editor: In the past 30 years, methicillin-resistant Staphylococcus aureus (MRSA) has been the leading cause of nosocomial infections throughout the world. Healthcare-associated MRSA (HA-MRSA) isolates are resistant to multiple antimicrobial drugs. This resistance severely hampers treatment options. During the past decade, MRSA isolates have also emerged as major pathogens in the communit...

2011
Patrick E Akpaka Stefan Monecke William H Swanston AV Chalapathi Rao Renee Schulz Paul N Levett

INTRODUCTION Certain Staphylococcus aureus strains produce Panton-Valentine leukocidin, a toxin that lyses white blood cells causing extensive tissue necrosis and chronic, recurrent or severe infection. This report documents a confirmed case of methicillin-sensitive Staphylococcus aureus strain harboring Panton-Valentine leukocidin genes from Trinidad and Tobago. To the best of our knowledge, t...

Background and Objective: Panton-Valentine leukocidin (PVL) toxin is a hemolytic exotoxin that increases the permeability of the cell membrane, thus causing lysis of leukocytes and tissue necrosis. Collagen-binding protein (Cna) adhesion Staphylococcus aureus is responsible for binding to collagen and the major virulence factor in arthritis and osteomyelitis. The purpose of this study was to in...

امینی, کیومرث, علیزاده, سجاد,

Background and Objective: Staphylococcus aureus is a major pathogen of human in the world. Methicillin-resistant Staphylococcus aureus is associated with nosocomial infections. Recently, staphylococcal infections have been associated with the community. The purpose of this study was to isolate and identify Staphylococcus aureus virulence Panton-Valentine leukocidin (PVL) and  methicillin...

Journal: :The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases 2012
Alfonso Bettin Ceyla Causil Niradiz Reyes

Staphylococcus aureus (SA) remains a major cause of nosocomial and community-acquired infections worldwide. Nasal carriage of this bacterium among hospital personnel constitutes an important source for nosocomial infections. A cross-sectional study enrolling the whole medical student population (n=387) of the School of Medicine at the Universidad de Cartagena, Colombia, was conducted to evaluat...

2007
Olivier Lesens Rachel Haus-Cheymol Philippe Dubrous Catherine Verret André Spiegel Richard Bonnet Michèle Bes Henri Laurichesse Jean Beytout Jerome Etienne René Migliani Jean Louis Koeck

We report 2 outbreaks of Panton-Valentine leukocidin-positive, doxycycline-resistant, methicillin-susceptible Staphylococcus aureus infections in French soldiers operating in Côte d'Ivoire. In a transssectional survey, nasal carriage of this strain was found in 2.9% of 273 soldiers about to be sent to Côte d'Ivoire and was associated with prior malaria prophylaxis with doxycycline.

2012
François Vandenesch G. Lina Thomas Henry

One key aspect of the virulence of Staphylococcus aureus lies in its ability to target the host cell membrane with a large number of membrane-damaging toxins and peptides. In this review, we describe the hemolysins, the bi-component leukocidins (which include the Panton Valentine leukocidin, LukAB/GH, and LukED), and the cytolytic peptides (phenol soluble modulins). While at first glance, all o...

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