Nishikawa K, Hashimoto M, Itoh Y, Hiroi S, Kusai A, Hirata F, Sakamoto T, Iwaya K. Detection of changes in the structure and distribution map of triacylglycerol in fatty liver model by MALDI-SpiralTOF.
FEBS Open Bio 2014;
4:179-84. [PMID:
24649399 PMCID:
PMC3953719 DOI:
10.1016/j.fob.2014.02.005]
[Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 01/29/2014] [Accepted: 02/06/2014] [Indexed: 11/27/2022] Open
Abstract
MS/MS and imaging mass spectrometry analysis (IMS) were used to estimate mouse fatty liver.
Triacylglycerol (TG) structure and distribution were measured using MS/MS and IMS.
The most intense mass spectrum ion was indicated by IMS at m/z 881.7 (52:2).
MS/MS showed a structural change between liver TG and dietary TG.
MALDI-SpiralTOF with IMS could be a powerful tool for clinical screening of fatty liver.
Matrix-assisted laser desorption/ionisation spiral orbit-type time-of-flight mass spectrometry (MALDI-SpiralTOF) can analyse lipid profiles and characterise lipid structure. Imaging mass spectrometry (IMS) also provides distribution maps of selected m/z values. Here, we investigated triacylglycerol (TG) structure and distribution using these technologies to estimate mouse fatty liver. The distribution and intensity of the most intense mass spectrum ion was indicated by IMS at m/z 881.7 (52:2). Analysis using MS/MS showed a structural change between liver TG and dietary TG. These findings suggest that MALDI-SpiralTOF is a powerful tool for clinical screening and estimating fatty liver.
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