Evidence map›Paper›PMID 23391889›Full record

ArticleNature protocols2013

Liquid chromatography quadrupole time-of-flight mass spectrometry characterization of metabolites guided by the METLIN database.

Zheng-Jiang Zhu, Andrew W Schultz, Junhua Wang, Caroline H Johnson, Steven M Yannone, Gary J Patti, Gary Siuzdak

Abstract read
In one paragraph

Article in Nature protocols, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 185 papers.

0numbers the graph read from it
0cells of the map it votes in
185citing 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

185 citing papers in PubMed.

  1. Trial
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  5. Multi-Targeted Neuroprotection byInternational journal of molecular sciences · 2026
    Article
  6. Article
  7. Article
  8. Article
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  10. Phytochemical Analysis of PlantMolecules (Basel, Switzerland) · 2026
    Article
  11. Mass Spectrometry as a Tool for Metabolomics in Cancer.Advances in experimental medicine and biology · 2026
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

125 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Zheng-Jiang ZhuScripps Center for Metabolomics and Mass Spectrometry, The Scripps Research Institute, La Jolla, California, USA.
Andrew W Schultz
Junhua Wang
Caroline H Johnson
Steven M Yannone
Gary J Patti
Gary Siuzdak

Funding

Therapeutics Core (Page 286)P30MH062261 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI GENDELMAN, HOWARD E · 2000 to 2021
$37.7M
Adult Stem Cells for Therapy of Visual DisordersR24EY017540 · NEI · SCRIPPS RESEARCH INSTITUTE, THE · PI FRIEDLANDER, MARTIN · 2007 to 2011
$17.5M
Proteomic Strategies for AIDS and Drug Abuse - HIV and METH CNS SynergyP01DA026146 · NIDA · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI GENDELMAN, HOWARD E · 2008 to 2010
$2.9M
Normalizing Breast Cancer Metabolism to Prevent Progression and Recurrence (PQ21)R01CA170737 · NCI · SCRIPPS RESEARCH INSTITUTE, THE · PI FELDING, BRUNIE H. · 2012 to 2015
$2.1M
DEVELOPING THE UNTARGETED METABOLOMIC WORKFLOW FOR HIGH-THROUGHPUT ANALYSESR01ES022181 · NIEHS · WASHINGTON UNIVERSITY · PI PATTI, GARY J · 2012 to 2016
$1.8M
Griffin: Venous Thromboembolism and mass spectrometry-based untargeted metabolomiRC1HL101034 · NHLBI · SCRIPPS RESEARCH INSTITUTE, THE · PI DEGUCHI, HIROSHI, GRIFFIN, JOHN H · 2009 to 2010
$952k
NCI NIH HHS R01 CA170737NEI NIH HHS R24 EY017540NHLBI NIH HHS RC1 HL101034NIA NIH HHS L30 AG0038036NIA NIH HHS L30 AG038036NIDA NIH HHS P01 DA026146NIEHS NIH HHS 1R01 ES022181-01NIEHS NIH HHS R01 ES022181NIMH NIH HHS P30 MH062261
6 · The paper itself

Abstract

Untargeted metabolomics provides a comprehensive platform for identifying metabolites whose levels are altered between two or more populations. By using liquid chromatography quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS), hundreds to thousands of peaks with a unique m/z ratio and retention time are routinely detected from most biological samples in an untargeted profiling experiment. Each peak, termed a metabolomic feature, can be characterized on the basis of its accurate mass, retention time and tandem mass spectral fragmentation pattern. Here a seven-step protocol is suggested for such a characterization by using the METLIN metabolite database. The protocol starts from untargeted metabolomic LC-Q-TOF-MS data that have been analyzed with the bioinformatics program XCMS, and it describes a strategy for selecting interesting features as well as performing subsequent targeted tandem MS. The seven steps described will require 2-4 h to complete per feature, depending on the compound.

Indexed as

Databases, FactualChromatography, LiquidComputational BiologyMass SpectrometryMetabolomicsSoftware

Identifiers

PMID23391889
PMCPMC3666335

What OpenQuestion holds

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Read underepoch 390

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.