Characteristic fragmentation of polyunsaturated fatty acids with allylic vicinal diols in positive-ion LC/ESI-MS/MS

A characteristic fragmentation was observed for PUFAs that contain allylic vicinal diol groups (resolvin D1, D2, D4, E3, lipoxin A4, B4, and maresin 2), which were derivatized with N,N-dimethylethylenediamine (DMED), in positive-ion ESI-MS/MS. The findings indicate that when these compounds contain...

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Main Authors: Huibin Zhu, Mone Kurokawa, Mengyao Chen, Qiuyi Wang, Masayuki Inoue, Toshifumi Takao
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:Journal of Lipid Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227523000573
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author Huibin Zhu
Mone Kurokawa
Mengyao Chen
Qiuyi Wang
Masayuki Inoue
Toshifumi Takao
author_facet Huibin Zhu
Mone Kurokawa
Mengyao Chen
Qiuyi Wang
Masayuki Inoue
Toshifumi Takao
author_sort Huibin Zhu
collection DOAJ
description A characteristic fragmentation was observed for PUFAs that contain allylic vicinal diol groups (resolvin D1, D2, D4, E3, lipoxin A4, B4, and maresin 2), which were derivatized with N,N-dimethylethylenediamine (DMED), in positive-ion ESI-MS/MS. The findings indicate that when these compounds contain an allylic hydroxyl group that is located distal to the terminal DMED moiety in the case of resolvin D1, D4, and lipoxin A4, an aldehyde (-CH=O) is predominately formed, which arises from the breakdown in between vicinal diols, whereas, in the case of an allylic hydroxyl group that is located proximal to the DMED moiety, as in resolvin D2, E3, lipoxin B4, and maresin 2, an allylic carbene (-CH=CH-CH:) is formed. These specific fragmentations could be used as diagnostic ions for characterizing the above seven PUFAs. As a result, it was possible to detect resolvin D1, D2, E3, lipoxin A4, and B4 in sera (20 μl) obtained from healthy volunteers by multiple-reaction monitoring using LC/ESI-MS/MS.
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spelling doaj.art-4f43d57ba34f4c1999faee0d8e3103be2023-06-23T04:42:17ZengElsevierJournal of Lipid Research0022-22752023-06-01646100384Characteristic fragmentation of polyunsaturated fatty acids with allylic vicinal diols in positive-ion LC/ESI-MS/MSHuibin Zhu0Mone Kurokawa1Mengyao Chen2Qiuyi Wang3Masayuki Inoue4Toshifumi Takao5Institute for Protein Research, Osaka University, Osaka, JapanInstitute for Protein Research, Osaka University, Osaka, JapanInstitute for Protein Research, Osaka University, Osaka, JapanInstitute for Protein Research, Osaka University, Osaka, JapanGraduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, JapanInstitute for Protein Research, Osaka University, Osaka, Japan; For correspondence: Toshifumi TakaoA characteristic fragmentation was observed for PUFAs that contain allylic vicinal diol groups (resolvin D1, D2, D4, E3, lipoxin A4, B4, and maresin 2), which were derivatized with N,N-dimethylethylenediamine (DMED), in positive-ion ESI-MS/MS. The findings indicate that when these compounds contain an allylic hydroxyl group that is located distal to the terminal DMED moiety in the case of resolvin D1, D4, and lipoxin A4, an aldehyde (-CH=O) is predominately formed, which arises from the breakdown in between vicinal diols, whereas, in the case of an allylic hydroxyl group that is located proximal to the DMED moiety, as in resolvin D2, E3, lipoxin B4, and maresin 2, an allylic carbene (-CH=CH-CH:) is formed. These specific fragmentations could be used as diagnostic ions for characterizing the above seven PUFAs. As a result, it was possible to detect resolvin D1, D2, E3, lipoxin A4, and B4 in sera (20 μl) obtained from healthy volunteers by multiple-reaction monitoring using LC/ESI-MS/MS.http://www.sciencedirect.com/science/article/pii/S0022227523000573allylic vicinal diolsfragmentationhuman serumlipoxinmaresinpolyunsaturated fatty acids
spellingShingle Huibin Zhu
Mone Kurokawa
Mengyao Chen
Qiuyi Wang
Masayuki Inoue
Toshifumi Takao
Characteristic fragmentation of polyunsaturated fatty acids with allylic vicinal diols in positive-ion LC/ESI-MS/MS
Journal of Lipid Research
allylic vicinal diols
fragmentation
human serum
lipoxin
maresin
polyunsaturated fatty acids
title Characteristic fragmentation of polyunsaturated fatty acids with allylic vicinal diols in positive-ion LC/ESI-MS/MS
title_full Characteristic fragmentation of polyunsaturated fatty acids with allylic vicinal diols in positive-ion LC/ESI-MS/MS
title_fullStr Characteristic fragmentation of polyunsaturated fatty acids with allylic vicinal diols in positive-ion LC/ESI-MS/MS
title_full_unstemmed Characteristic fragmentation of polyunsaturated fatty acids with allylic vicinal diols in positive-ion LC/ESI-MS/MS
title_short Characteristic fragmentation of polyunsaturated fatty acids with allylic vicinal diols in positive-ion LC/ESI-MS/MS
title_sort characteristic fragmentation of polyunsaturated fatty acids with allylic vicinal diols in positive ion lc esi ms ms
topic allylic vicinal diols
fragmentation
human serum
lipoxin
maresin
polyunsaturated fatty acids
url http://www.sciencedirect.com/science/article/pii/S0022227523000573
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