Evidence map›Paper›PMID 33666420›Full record

ArticleJournal of natural products2021

Interlaboratory Comparison of Untargeted Mass Spectrometry Data Uncovers Underlying Causes for Variability.

Trevor N Clark, Joëlle Houriet, Warren S Vidar, Joshua J Kellogg, Daniel A Todd, Nadja B Cech, Roger G Linington

Abstract readComparative Study
In one paragraph

Article in Journal of natural products, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. 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.

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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.

Trevor N ClarkDepartment of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
Joëlle HourietDepartment of Chemistry & Biochemistry, University of North Carolina Greensboro, Greensboro, North Carolina 27402, United States.
Warren S VidarDepartment of Chemistry & Biochemistry, University of North Carolina Greensboro, Greensboro, North Carolina 27402, United States.
Joshua J KelloggDepartment of Chemistry & Biochemistry, University of North Carolina Greensboro, Greensboro, North Carolina 27402, United States.ORCID 0000-0001-8685-0353
Daniel A ToddDepartment of Chemistry & Biochemistry, University of North Carolina Greensboro, Greensboro, North Carolina 27402, United States.
Nadja B CechDepartment of Chemistry & Biochemistry, University of North Carolina Greensboro, Greensboro, North Carolina 27402, United States.ORCID 0000-0001-6773-746X
Roger G LiningtonDepartment of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.ORCID 0000-0003-1818-4971

Funding

Pharmacology CoreU54AT008909 · NCCIH · WASHINGTON STATE UNIVERSITY · PI BOYCE, RICHARD DAVID · 2015 to 2024
$22.4M
Urgent Covid-19 Revision to the Center for High-Throughput Functional Annotation of Natural ProductsU41AT008718 · NCCIH · UT SOUTHWESTERN MEDICAL CENTER · PI CECH, NADJA B, LININGTON, ROGER G · 2015 to 2024
$10.1M
NCCIH NIH HHS U41 AT008718NCCIH NIH HHS U54 AT008909
6 · The paper itself

Abstract

Despite the value of mass spectrometry in modern natural products discovery workflows, it remains very difficult to compare data sets between laboratories. In this study we compared mass spectrometry data for the same sample set from two different laboratories (quadrupole time-of-flight and quadrupole-Orbitrap) and evaluated the similarity between these two data sets in terms of both mass spectrometry features and their ability to describe the chemical composition of the sample set. Somewhat surprisingly, the two data sets, collected with appropriate controls and replication, had very low feature overlap (25.7% of Laboratory A features overlapping 21.8% of Laboratory B features). Our data clearly demonstrate that differences in fragmentation, charge state, and adduct formation in the ionization source are a major underlying cause for these differences. Consistent with other recent literature, these findings challenge the conventional wisdom that electrospray ionization mass spectrometry (ESI-MS) yields a simple one-to-one correspondence between analytes in solution and features in the data set. Importantly, despite low overlap in feature lists, principal component analysis (PCA) generated qualitatively similar PCA plots. Overall, our findings demonstrate that comparing untargeted metabolomics data between laboratories is challenging, but that data sets with low feature overlap can yield the same qualitative description of a sample set using PCA.

Indexed as

Camellia sinensisData AccuracyLaboratoriesMass SpectrometryMetabolomicsPlant ExtractsPrincipal Component AnalysisReproducibility of ResultsPlant Extracts

Identifiers

PMID33666420
PMCPMC8326878

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.