scholarly journals Adaptation of the brain tumors classifier, constructed on the direct mass spectrometric profiling data, to MALDI mass spectrometry analysis

2018 ◽  
pp. 24-24
2020 ◽  
Vol 92 (17) ◽  
pp. 11851-11859
Author(s):  
Melissa S. Unger ◽  
Lena Schumacher ◽  
Thomas Enzlein ◽  
David Weigt ◽  
Maciej J. Zamek-Gliszczynski ◽  
...  

2012 ◽  
Vol 8 ◽  
pp. 753-762 ◽  
Author(s):  
Martin J Weissenborn ◽  
Johannes W Wehner ◽  
Christopher J Gray ◽  
Robert Šardzík ◽  
Claire E Eyers ◽  
...  

Glycans functionalised with hydrophobic trityl groups were synthesised and adsorbed onto polystyrene and glass slides in an array format. The adsorbed glycans could be analysed directly on these minimally conducting surfaces by MALDI-TOF mass spectrometry analysis after aluminium tape was attached to the underside of the slides. Furthermore, the trityl group appeared to act as an internal matrix and no additional matrix was necessary for the MS analysis. Thus, trityl groups can be used as simple hydrophobic, noncovalently linked anchors for ligands on surfaces and at the same time facilitate the in situ mass spectrometric analysis of such ligands.


2000 ◽  
Vol 17 (1) ◽  
pp. 23-35 ◽  
Author(s):  
Keith M. McLean ◽  
Sally L. McArthur ◽  
Ronald C. Chatelier ◽  
Peter Kingshott ◽  
Hans J. Griesser

2021 ◽  
Vol 885 ◽  
pp. 25-31
Author(s):  
Donatella Aiello

We proposed a MALDI mass spectrometry based approach to characterize walnut allergens. The strategy is based on the extraction of hydro-soluble tissue proteins followed by protein fractionation and mass-spectrometry analysis. Linear MALDI was adopted to evaluate the intact protein mass information and the presence of glycoproteins.


2021 ◽  
Vol 37 (5) ◽  
pp. 80-87
Author(s):  
A.I. Tkachev ◽  
M.S. Osetrova ◽  
D.N. Smirnov ◽  
O.I. Efimova ◽  
E.E. Khrameev

Abstract-Lipids make up more than half of the dry matter of the human brain and play a key role in its functioning. However, the lipid composition of the brain anatomical structures remains poorly understood. The first such studies were carried out more than 50 years ago, but since then, a small number of works have been published describing the concentration of lipids in only a few areas of the human brain. A fundamentally new step towards understanding the molecular organization of the brain and identifying the molecular basis of human cognitive abilities should be a detailed large-scale study of the brain lipidome. However, there is no description in the literature of methods optimized for studying the lipid composition of the human brain. In this work, we develop and present methods for lipid extraction and mass spectrometry analysis, which ensure simultaneous detection of the maximum amount of different lipid classes and individual substances in the human brain, as well as the approaches to bioinformatics analysis of the obtained data. Their use makes it possible to create a comprehensive picture of the molecular organization of the human brain, which has no analogues in the world in terms of its completeness. Key words: lipidome, brain, mass spectrometry, high-performance liquid chromatography, bioinformatics The reported study was funded by the Russian Foundation for Basic Research, project no. 20-34-70077.


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