نتایج جستجو برای: ژن های agr

تعداد نتایج: 483034  

Journal: :The Journal of experimental biology 2007
Carmen R Smarandache Wolfgang Stein

Sensory input is pervasive among motor networks and continuously adapts motor patterns to changing circumstances. To elucidate common principles of sensorimotor integration, it is beneficial to characterize sensory influences on motor network operation and compare these influences between species. To facilitate such comparison, we have studied the influence of the anterior gastric receptor (AGR...

Journal: :The Journal of infectious diseases 2010
Pamela A Moise Alan Forrest Arnold S Bayer Yan Q Xiong Michael R Yeaman George Sakoulas

BACKGROUND Vancomycin susceptibility, the accessory gene global regulator (agr) genotype and function, staphylococcal cassette chromosome (SCC) mec type, and susceptibility to cationic thrombin-induced platelet microbicidal protein 1 (tPMP-1) have been individually predictive of duration of methicillin-resistant Staphylococcus aureus (MRSA) bacteremia. This investigation evaluated the interrela...

Journal: :Journal of bacteriology 2002
Jeremy M Yarwood John K McCormick Michael L Paustian Vivek Kapur Patrick M Schlievert

Subgenomic DNA microarrays were employed to evaluate the expression of the accessory gene regulator (agr locus) as well as multiple virulence-associated genes in Staphylococcus aureus. Gene expression was examined during growth of S. aureus in vitro in standard laboratory medium and rabbit serum and in vivo in subcutaneous chambers implanted in either nonimmune rabbits or rabbits immunized with...

2015
Mohammad Mohsenzadeh Kiarash Ghazvini Amir Azimian

Staphylococcus aureus is generally regarded as a leading cause of mastitis in dairy cattle. The aim of this study was to investigate the pattern of agr groups and any possible relationship between agr groups and antibiotic resistance among S. aureus strains isolated from bovine mastitis in Northeast of Iran. For this purpose, a total of 300 bovine mastitic milk samples were taken from dairy ind...

2017
Jiaxi He Hui Pan Wenhua Liang Dakai Xiao Xuewei Chen Minzhang Guo Jianxing He

Background: Albumin and globulin are main components of serum protein. The level of albumin and globulin partially represents the nutrition status and immune system. Albumin-to-globulin ratio (AGR) has been reported as a prognostic factor in various cancers. We therefore performed a meta-analysis to elucidate the prognosis effect of AGR on survival outcomes in solid tumors. Method: Six electron...

2017
Xiaobo He Shengjie Guo Dong Chen Guangwei Yang Xin Chen Yijun Zhang Qiuming He Zike Qin Zhuowei Liu Yunfei Xue Meng Zhang Ruiwu Liu Fangjian Zhou Hui Han Kai Yao

Background: Malnutrition and systemic inflammatory response are frequently associated with prognosis in patients with several types of cancer, including renal cell carcinoma (RCC). The study is aimed to investigate the ability of preoperative serum albumin to globulin ratio (AGR) to predict the long-term mortality of RCC patients. Methods: The study is a retrospective study of an unselected coh...

Journal: :Infection and immunity 1993
L B Regassa M J Betley

Expression of the staphylococcal enterotoxin type C gene (sec) is regulated in response to both high NaCl concentrations (osmolarity) and the accessory gene regulator (agr). agr is a global regulator that alters the expression of many genes in Staphylococcus aureus. In this report, we have demonstrated that osmoregulation of sec occurs at the level of mRNA independently of an intact agr allele....

2015
Katherine Y. Le Michael Otto

Staphylococci are frequent human commensals and some species can cause disease. Staphylococcus aureus in particular is a dangerous human pathogen. In staphylococci, the ability to sense the bacterial cell density, or quorum, and to respond with genetic adaptations is due to one main system, which is called accessory gene regulator (Agr). The extracellular signal of Agr is a post-translationally...

Journal: :The Journal of infectious diseases 2009
George Sakoulas Pamela A Moise Michael J Rybak

To the Editor—We read the study by Shopsin et al. [1] with interest. As far as we are aware, this study provides the first accessory gene regulator (agr) functional analysis for isolates of Staphylococcus aureus recovered from colonized individuals. These authors observed that agrdysfunctional isolates colonized 15 (9%) of 160 screened subjects and suggest that agr-dysfunctional strains were fi...

Journal: : 2022

سابقه و هدف: سلامت خاک از مولفه ‏های اصلی در دستیابی به سامانه ‏‏های کشاورزی پایدار بوده که شدت تحت تاثیر عملیات زراعی مانند خاکورزی قرار می ‏گیرد. را توان با استفاده پارامترهای فیزیکی، شیمیایی بیولوژیکی قالب الگوریتم‏ های مشخص کمّی کرد. نتیجه، بررسی وضعیت کیفی باروری مدیریتی مختلف زمین جهت استقرار مناسب برای تولید بهینه نظام‌های امری ضروری می‏ باشد. چارچوب ارزیابی مدیریت SMAF 1 عنوان ابزاری قدر...

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