نتایج جستجو برای: tof ms

تعداد نتایج: 132215  

Journal: :Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] 2016
Mohammed Suliman AlMogbel

The aim of this study was to identify different Clostridium spp. isolated from currency notes from the Ha'il region of Saudi Arabia in September 2014 using MALDI-TOF-MS. Clostridium spp. were identified by Bruker MALDI-TOF-MS and compared with VITEK 2. The confirmation of the presence of different Clostridium spp. was performed by determining the sequence of the 16S ribosomal RNA gene. In this ...

2017
Vichaya Suttisunhakul Apinya Pumpuang Peeraya Ekchariyawat Vanaporn Wuthiekanun Mindy G Elrod Paul Turner Bart J Currie Rattanaphone Phetsouvanh David A B Dance Direk Limmathurotsakul Sharon J Peacock Narisara Chantratita

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is increasingly used for rapid bacterial identification. Studies of Burkholderia pseudomallei identification have involved small isolate numbers drawn from a restricted geographic region. There is a need to expand the reference database and evaluate B. pseudomallei from a wider geographic distribution th...

2012
Anne L. M. Vlek Marc J. M. Bonten C. H. Edwin Boel

Matrix assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) allows the identification of microorganisms directly from positive blood culture broths. Use of the MALDI-TOF MS for rapid identification of microorganisms from blood culture broths can reduce the turnaround time to identification and may lead to earlier appropriate treatment of bacteremia. During Februa...

2017
Vikas Gautam Megha Sharma Lipika Singhal Sunil Kumar Parvinder Kaur Rupinder Tiwari Pallab Ray

BACKGROUND & OBJECTIVES Matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS) has been instrumental in revolutionizing microbiological identification, especially in high-throughput laboratories. It has enabled the identification of organisms like non-fermenting Gram-negative bacilli (NFGNB), which has been a challenging task using conventional methods alone...

Journal: :Journal of clinical microbiology 2007
C Friedrichs A C Rodloff G S Chhatwal W Schellenberger K Eschrich

Viridans streptococci (VS) are responsible for several systemic diseases, such as endocarditis, abscesses, and septicemia. Unfortunately, species identification by conventional methods seems to be more difficult than species identification of other groups of bacteria. The aim of the present study was to evaluate the use of cell matrix-assisted laser desorption ionization-time of flight mass spe...

Journal: :Annals of clinical and laboratory science 2007
Hiroya Hidaka Noboru Hanyu Mitsutoshi Sugano Kenji Kawasaki Kazuyoshi Yamauchi Tsutomu Katsuyama

This study used matrix-assisted laser desorption and ionization time-of-flight mass spectrometry (MALDI-TOF MS) to identify all lipid classes in human serum lipoproteins. After the major lipoproteins classes were isolated from serum by ultracentrifugation, the lipids were extracted and mixed with 2,5-dihydroxybenzoic acid (2,5-DHB) dissolved in Folch's solution (chloroform/methanol 2:1, v/v). M...

2003
William E. Grizzle Bao-Ling Adam William L. Bigbee Thomas P. Conrads Christopher Carroll Ziding Feng Elzbieta Izbicka Moncef Jendoubi Donald Johnsey Jacob Kagan Robin J. Leach Diane B. McCarthy O. John Semmes Shiv Srivastava Sudhir Srivastava Ian M. Thompson Mark D. Thornquist Mukesh Verma Zhen Zhang Zhiqiang Zou

Multiple studies have reported that analysis of serum and other bodily fluids using surface enhanced laser desorption/ionization time of flight mass spectroscopy (SELDI-TOF-MS) can identify a "fingerprint" or "signature" of spectral peaks that can separate patients with a specific disease from normal control patients. Ultimately, classification by SELDI-TOF-MS relies on spectral differences in ...

Journal: :The Journal of antimicrobial chemotherapy 2014
Cecilia G Carvalhaes Rodrigo Cayô Marina F Visconde Talita Barone Eliete A M Frigatto Debora Okamoto Diego M Assis Luiz Juliano Antonia M O Machado Ana C Gales

OBJECTIVES Recently, matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS) was successfully applied for the detection of carbapenemase activity directly from Gram-negative colonies. Based on this principle, we evaluated the performance of MALDI-TOF MS for rapid detection of carbapenemase activity directly from positive blood culture vials. METHODS A total...

2013
Yoshihiko Takinami Shinya Yoshimatsu Takaoki Uchiumi Tomoko Toyosaki-Maeda Atsushi Morita Takeshi Ishihara Shoji Yamane Isao Fukuda Hiroyuki Okamoto Yoshito Numata Naoshi Fukui

BACKGROUND As osteoarthritis (OA) is a highly heterogeneous disease in terms of progression, establishment of prognostic biomarkers would be highly beneficial for treatment. The present study was performed to identify novel biomarkers capable of predicting the progression of knee OA. METHODS A total of 69 plasma samples (OA patients undergoing radiographic progression, n = 25; nonprogression,...

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