PMID- 26753787 OWN - NLM STAT- MEDLINE DCOM- 20161013 LR - 20161230 IS - 1559-4106 (Electronic) IS - 1559-4106 (Linking) VI - 11 IP - 2 DP - 2016 Jun 11 TI - Mass spectrometric profiling of lipids in intestinal tissue from rats fed cereals processed for medical conditions. PG - 02A310 LID - 10.1116/1.4939599 [doi] AB - Time-of-flight secondary ion mass spectrometry (ToF-SIMS) was used for lipid profiling of intestine tissue sections from rats fed specially processed cereals and rats fed ordinary feed as a control. This cereal is known to increase the activity of antisecretory factor in plasma and the exact mechanism for the activation process at the cellular level is unclear. ToF-SIMS has been used to track food induced changes in lipid content in intestinal tissue sections to gain insight into the possible mechanisms involved. Data from 20 intestine sections belonging to four different rats from each group of control and specially processed cereals-fed rats were obtained using the stage scan macroraster with a lateral resolution of 5 mum. Data were subsequently subjected to orthogonal partial least squares discriminant analysis. The data clearly show that changes of certain lipids are induced by the specially processed cereal feed. Scores plots show a well-defined separation between the two groups. The corresponding loading plots reveal that the groups separate mainly due to changes of vitamin E, phosphocholine, and phosphosphingolipid fragments, and that for the c18:2 fatty acid. The observed changes in lipids might give insight into the working mechanisms of antisecretory factor in the body, and this has been successfully used to understand the working mechanism of specially processed cereal-induced antisecretory factor activation in intestine. FAU - Dowlatshahi Pour, Masoumeh AU - Dowlatshahi Pour M AD - Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden and National Center for Imaging Mass Spectrometry, Gothenburg 412 96, Sweden. FAU - Jennische, Eva AU - Jennische E AD - Institute of Biomedicine, Gothenburg 413 90, Sweden. FAU - Lange, Stefan AU - Lange S AD - Institute of Biomedicine, Gothenburg 413 90, Sweden. FAU - Ewing, Andrew G AU - Ewing AG AD - Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden; National Center for Imaging Mass Spectrometry, Gothenburg 412 96, Sweden; and Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg 412 96, Sweden. FAU - Malmberg, Per AU - Malmberg P AD - Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg 412 96, Sweden and National Center for Imaging Mass Spectrometry, Gothenburg 412 96, Sweden. LA - eng PT - Journal Article DEP - 20160611 PL - United States TA - Biointerphases JT - Biointerphases JID - 101275679 RN - 0 (Lipids) SB - IM MH - *Animal Feed MH - Animals MH - Diet/*methods MH - *Edible Grain MH - Intestines/*chemistry MH - Lipids/*analysis MH - Rats MH - Spectrometry, Mass, Secondary Ion/methods EDAT- 2016/01/13 06:00 MHDA- 2016/10/14 06:00 CRDT- 2016/01/13 06:00 PHST- 2016/01/13 06:00 [entrez] PHST- 2016/01/13 06:00 [pubmed] PHST- 2016/10/14 06:00 [medline] AID - 10.1116/1.4939599 [doi] PST - epublish SO - Biointerphases. 2016 Jun 11;11(2):02A310. doi: 10.1116/1.4939599.