نتایج جستجو برای: regulated using maldi

تعداد نتایج: 3526916  

Journal: :International Journal of Medical Microbiology 2018

Journal: :Journal of the American Society for Mass Spectrometry 2002

2016
Laëtitia Théron Delphine Centeno Cécile Coudy-Gandilhon Estelle Pujos-Guillot Thierry Astruc Didier Rémond Jean-Claude Barthelemy Frédéric Roche Léonard Feasson Michel Hébraud Daniel Béchet Christophe Chambon

Mass spectrometry imaging (MSI) is a powerful tool to visualize the spatial distribution of molecules on a tissue section. The main limitation of MALDI-MSI of proteins is the lack of direct identification. Therefore, this study focuses on a MSI~LC-MS/MS-LF workflow to link the results from MALDI-MSI with potential peak identification and label-free quantitation, using only one tissue section. A...

Journal: :Analytica chimica acta 2007
Shinobu Sakai Kana Hirano Hidenao Toyoda Robert J Linhardt Toshihiko Toida

A new method is presented for the identification of oligosaccharides obtained by enzymatic digestion of hyaluronan (HA) with bacterial hyaluronidase (E.C. 4.2.2.1, from Streptomyces hyalurolyticus) using matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOFMS). Mixtures containing HA oligosaccharides of tetrasaccharide (4-mer)-34-mer were analyzed using this me...

Journal: :iranian journal of parasitology 0
gülnaz culha department of microbiology and clinical microbiology, school of medicine, mustafa kemal university, hatay, turkey. isin akyar department of medical microbiology, school of medicine, acibadem university, istanbul, turkey. fadile yildiz zeyrek department of microbiology and clinical microbiology, school of medicine, harran university, sanliurfa, turkey. özgür kurt department of medical microbiology, school of medicine, acibadem university, istanbul, turkey. cumhur gündüz department of medical biology, school of medicine, ege university, izmir, turkey. seray özensoy töz department of medical parasitology, school of medicine, ege university, izmir, turkey.

background: cutaneous leishmaniasis (cl) is endemic in southeastern anatolia, mainly in sanliurfa and hatay provinces, and the causative agents are mostly leishmania tropica and less frequently l. infantum . here, we report the first mal-di-tof analyses of leishmania promastigotes obtained from the cultures of two cl cases from osmaniye and hatay provinces who were initially diagnosed by micros...

2017
Marta Pérez-Sancho Ana I. Vela Teresa García-Seco Sergio González Lucas Domínguez Jose Francisco Fernández-Garayzábal

The application of MALDI-TOF MS for identifying streptococcal isolates recovered from clinical specimens of diseased pigs was evaluated. For this proposal, the MALDI BDAL Database (Bruker Daltoniks, Germany) was supplemented with the main spectrum profiles (MSP) of the reference strains of S. porci, S. porcorum and S. plurextorum associated with pneumonia and septicemia. Although these three sp...

Journal: :Applied and environmental microbiology 2014
Maria-Theresia Gekenidis Patrick Studer Simone Wüthrich René Brunisholz David Drissner

A well-accepted method for identification of microorganisms uses matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) coupled to analysis software which identifies and classifies the organism according to its ribosomal protein spectral profile. The method, called MALDI biotyping, is widely used in clinical diagnostics and has partly replaced conventional m...

2017
É.B. de Carvalho Filho F.A. L. Marson C.E. Levy

Rare nonfermenting Gram-negative bacilli, such as Chryseobacterium indologenes and Elizabethkingia meningoseptica, have clinical importance in nosocomial infections and cystic fibrosis (CF), and their identification is a challenge to microbiology laboratories. Thus, the objective of this study was to verify the performance of phenotypic and mass spectrometry (matrix-assisted desorption ionizati...

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