نتایج جستجو برای: pvl

تعداد نتایج: 1306  

2015
Hossein Motamedi Seyyed Soheil Rahmat Abadi Seyyed Mojtaba Moosavian Maryam Torabi

BACKGROUND Staphylococcus aureus, an important human pathogen is one of the main causative agents of nosocomial infection. Virulence genes play a major role in the pathogenicity of this agent and its infections. Methicillin-Resistant Staphylococcus aureus (MRSA) isolates are major challenge among infectious agents that can cause severe infections and mortality. Methicillin-resistant S. aureus p...

Journal: :AJNR. American journal of neuroradiology 2008
S Yoshida K Hayakawa A Yamamoto T Kanda Y Yamori

BACKGROUND AND PURPOSE The brain stem in patients with periventricular leukomalacia (PVL) appears smaller than normal on MR imaging, but few reports have described this feature, and the number of patients has been relatively small. The present study was conducted to examine the hypothesis that the pons in patients with PVL is smaller than normal. MATERIALS AND METHODS Using MR imaging, we exa...

مبین, هایده, ملاعباس زاده, حامد, میرزایی, حمید,

زمینه و هدف: استافیلوکوکوس اورئوس می تواند توکسین های مختلفی را مانند توکسین آلفا، بتا، گاما، دلتا و لکوسیدین تولید نماید. PVL یک توکسین سلولی می باشد که علیه سلول های پلی مورفونوکلئار، مونوسیت ها و ماکروفاژ ها فعالیت می کندو باعث افزایش قدرت نفوذ پذیری غشاء سلولی و در نتیجه سبب لیز شدن لکوسیت ها و نکروز بافت می شود. این مطالعه در نظر دارد تا میزان شیوع سویه های استافیلوکوکوس اورئوس PVL مثبت ر...

Journal: :International journal of cardiology 2016
Gaetano Burriesci Paolo Peruzzo Francesca Maria Susin Giuseppe Tarantini Andrea Colli

OBJECTIVE We aimed to in-vitro test Amplatzer devices (Amplatzer Vascular Plug II and Amplatzer Vascular Plug III, SJM, St. Paul, MN) in closing PVL generated by transcatheter balloon expandable aortic valve prosthesis in order to quantify the effective treatment of PVL. BACKGROUND Transcatheter aortic valve implantation (TAVI) procedures represent the treatment of choice for high risk patien...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1390

استافیلوکوکوس اورئوس یکی ازپاتوژنهای مهم انسانی با طیف وسیعی از بیماری ها می باشد. استفاده گسترده از آنتی بیوتیک های مختلف سبب ظهور مقاومت بین باکتری ها و انتشار آن در بین باکتری های بیماریزا شده است. استافیلوکوکوس اورئوس های مقاوم به متی سیلین (mrsa)به تدریج خود را به عنوان یک عامل شایع در ایجاد عفونت های بیمارستانی وجامعه مطرح کردند.هر فردی در طول حیات خود به برخی از عفونت های استافیلوکوکی نظ...

Journal: :Journal of neuropathology and experimental neurology 2003
Robin L Haynes Rebecca D Folkerth Rachael J Keefe Iyue Sung Luke I Swzeda Paul A Rosenberg Joseph J Volpe Hannah C Kinney

Periventricular leukomalacia (PVL), the major substrate of cerebral palsy in survivors of prematurity, is defined as focal periventricular necrosis and diffuse gliosis in immature cerebral white matter. We propose that nitrosative and/or oxidative stress to premyelinating oligodendrocytes complicating cerebral ischemia in the sick premature infant is a key mechanism of injury interfering with m...

2014
Stefan Monecke Bettina Stieber Rashida Roberts Patrick Eberechi Akpaka Peter Slickers Ralf Ehricht

It has been shown previously that high rates of methicillin- and mupirocin-resistant Staphylococcus aureus exist in the Caribbean islands of Trinidad and Tobago, as well as a high prevalence of Panton-Valentine leukocidin-positive S. aureus. Beyond these studies, limited typing data have been published. In order to obtain insight into the population structure not only of MRSA but also of methic...

Journal: :Archives of disease in childhood 1987
C L Fawer P Diebold A Calame

During an 18 month period, 120 preterm infants of 34 weeks' gestation or less were prospectively examined for periventricular leucomalacia (PVL) by cerebral ultrasound. Neurological and developmental assessment was carried out at 18 months of age corrected for prematurity in 82 surviving neonates. The developmental outcome (Griffiths development quotient) was above 80 and similar in infants wit...

Journal: :Oral oncology 2004
José V Bagán Judith Murillo Rafael Poveda Carmen Gavaldá Yolanda Jiménez Crispian Scully

Proliferative verrucous leukoplakia (PVL) is an uncommon entity with a high tendency to develop oral squamous cell carcinomas (OSCCs). The objective of this study was to analyse the presence of various OSCCs in the same patient with PVL. We studied 19 patients with PVL who had developed at least one OSCC. We analysed how many of these developed more than one OSCC over a period between 24 and a ...

Journal: :jundishapur journal of microbiology 0
laleh shariati department of molecular medicine, advanced technologies in medicine, tehran university of medical sciences, tehran, ir iran majid validi department of pathobiology, school of public health, tehran university of medical sciences, tehran, ir iran ali mohammad hasheminia department of nursing, school of nursing and midwifery, shahrekord university of medical sciences, shahrekord, ir iran reza ghasemikhah department of parasitology and mycology, school of medicine, arak university of medical sciences, arak, ir iran fariborz kianpour department of immunology, school of medicine, isfahan university of medical sciences, isfahan, ir iran ali karimi department of microbiology and immunology, cellular and molecular research center, shahrekord university of medical sciences, shahrekord, ir iran

conclusions community acquired (ca)-mrsa is becoming a public health concern in many parts of the world, including asian countries. the variable prevalence of luk-pv-positive mrsa isolates in different regions and their rather high frequency in pneumonia necessitate the application of rapid diagnostic methods such as real-time pcr to improve treatment effectiveness. materials and methods in tot...

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