Diagnosis of lung cancer based on direct-infusion electrospray mass spectrometry of blood plasma metabolites

2012 ◽  
Vol 309 ◽  
pp. 200-205 ◽  
Author(s):  
Petr G. Lokhov ◽  
Oleg N. Kharybin ◽  
Alexander I. Archakov
The Analyst ◽  
2020 ◽  
Vol 145 (2) ◽  
pp. 313-320 ◽  
Author(s):  
Haiyan Lu ◽  
Hua Zhang ◽  
Yiping Wei ◽  
Huanwen Chen

Lipids, metabolites and proteins in a bulk tissue were sequentially detected by iEESI-MS for improved accuracy in cancer differentiation.


2001 ◽  
Vol 67 (1) ◽  
pp. 377-386 ◽  
Author(s):  
James A. Zahn ◽  
Richard E. Higgs ◽  
Matthew D. Hilton

ABSTRACT A major barrier in the discovery of new secondary metabolites from microorganisms is the difficulty of distinguishing the minor fraction of productive cultures from the majority of unproductive cultures and growth conditions. In this study, a rapid, direct-infusion electrospray mass spectrometry (ES-MS) technique was used to identify chemical differences that occurred in the expression of secondary metabolites by 44 actinomycetes cultivated under six different fermentation conditions. Samples from actinomycete fermentations were prepared by solid-phase extraction, analyzed by ES-MS, and ranked according to a chemical productivity index based on the total number and relative intensity of ions present in each sample. The actinomycete cultures were tested for chemical productivity following treatments that included nutritional manipulations, autoregulator additions, and different agitation speeds and incubation temperatures. Evaluation of the ES-MS data from submerged and solid-state fermentations by pairedt test analyses showed that solid-state growth significantly altered the chemical profiles of extracts from 75% of the actinomycetes evaluated. Parallel analysis of the same extracts by high-performance liquid chromatography–ES-MS–evaporative light scattering showed that the chemical differences detected by the ES-MS method were associated with growth condition-dependent changes in the yield of secondary metabolites. Our results indicate that the high-throughput ES-MS method is useful for identification of fermentation conditions that enhance expression of secondary metabolites from actinomycetes.


Author(s):  
Byron Enrique Urizar Catalan ◽  
Belén Callejón Leblic ◽  
Victoria Ignacio Barrios ◽  
Eva Vázquez Gandullo ◽  
Rocio Baya Arenas ◽  
...  

2003 ◽  
Vol 62 (6) ◽  
pp. 929-937 ◽  
Author(s):  
Juan I Castrillo ◽  
Andrew Hayes ◽  
Shabaz Mohammed ◽  
Simon J Gaskell ◽  
Stephen G Oliver

2012 ◽  
Author(s):  
Robert T. Streeper ◽  
Elzbieta Izbicka ◽  
Armando Diaz ◽  
David Campos ◽  
Christopher Louden ◽  
...  

2013 ◽  
Vol 22 (4) ◽  
pp. 335-341 ◽  
Author(s):  
Petr G. Lokhov ◽  
Oxana P. Trifonova ◽  
Dmitry L. Maslov ◽  
Alexander I. Archakov

2011 ◽  
Vol 879 (22) ◽  
pp. 2073-2080 ◽  
Author(s):  
Katrin Veldboer ◽  
Torsten Vielhaber ◽  
Helmut Ahrens ◽  
Jendrik Hardes ◽  
Arne Streitbürger ◽  
...  

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