Evidence map›Paper›PMID 21953258›Full record

ArticleJournal of the American Society for Mass Spectrometry2011

Localization of fatty acyl and double bond positions in phosphatidylcholines using a dual stage CID fragmentation coupled with ion mobility mass spectrometry.

Jose Castro-Perez, Thomas P Roddy, Nico M M Nibbering, Vinit Shah, David G McLaren, Stephen Previs, Athula B Attygalle, Kithsiri Herath, Zhu Chen, Sheng-Ping Wang and 5 more

Erratum issuedAbstract read
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

37 citing papers in PubMed.

  1. Application of Ion Mobility Mass Spectrometry in Lipidomics.Advances in experimental medicine and biology · 2026
    Review
  2. Article
  3. Review
  4. Review
  5. Recent Advances in Gas-phase Ion/Ion Chemistry for Lipid Analysis.Trends in analytical chemistry : TRAC · 2023
    Article
  6. Unveiling Glycerolipid Fragmentation by Cryogenic Infrared Spectroscopy.Journal of the American Chemical Society · 2021
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

15 authors.

Jose Castro-PerezDepartment of Atherosclerosis Exploratory Biomarkers, Merck Research Laboratories, 126 E. Lincoln Ave, 80Y-2D7, Rahway, NJ 07065, USA. jose_castro-perez@merck.com
Thomas P Roddy
Nico M M Nibbering
Vinit Shah
David G McLaren
Stephen Previs
Athula B Attygalle
Kithsiri Herath
Zhu Chen
Sheng-Ping Wang
Lyndon Mitnaul
Brian K Hubbard
Rob J Vreeken
Douglas G Johns
Thomas Hankemeier

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A high content molecular fragmentation for the analysis of phosphatidylcholines (PC) was achieved utilizing a two-stage [trap (first generation fragmentation) and transfer (second generation fragmentation)] collision-induced dissociation (CID) in combination with travelling-wave ion mobility spectrometry (TWIMS). The novel aspects of this work reside in the fact that a TWIMS arrangement was used to obtain a high level structural information including location of fatty acyl substituents and double bonds for PCs in plasma, and the presence of alkali metal adduct ions such as [M + Li](+) was not required to obtain double bond positions. Elemental compositions for fragment ions were confirmed by accurate mass measurements. A very specific first generation fragment ion m/z 577 (M-phosphoryl choline) from the PC [16:0/18:1 (9Z)] was produced, which by further CID generated acylium ions containing either the fatty acyl 16:0 (C(15)H(31)CO(+), m/z 239) or 18:1 (9Z) (C(17)H(33)CO(+), m/z 265) substituent. Subsequent water loss from these acylium ions was key in producing hydrocarbon fragment ions mainly from the α-proximal position of the carbonyl group such as the hydrocarbon ion m/z 67 (+H(2)C-HC = CH-CH = CH(2)). Formation of these ions was of important significance for determining double bonds in the fatty acyl chains. In addition to this, and with the aid of (13)C labeled lyso-phosphatidylcholine (LPC) 18:1 (9Z) in the ω-position (methyl) TAP fragmentation produced the ion at m/z 57. And was proven to be derived from the α-proximal (carboxylate) or distant ω-position (methyl) in the LPC.

Indexed as

AnimalsCeramidesIonsMaleMiceMice, Inbred C57BLMolecular StructureMolecular WeightPhosphatidylcholinesPhospholipidsSpectrometry, Mass, Electrospray IonizationSphingomyelinsWaterCeramidesIonsPhosphatidylcholinesPhospholipidsSphingomyelinsWater

Identifiers

PMID21953258
PMCPMC3158848

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.