Evidence map›Paper›PMID 34404777›Full record

ArticleNature communications2021

A hierarchical approach to removal of unwanted variation for large-scale metabolomics data.

Taiyun Kim, Owen Tang, Stephen T Vernon, Katharine A Kott, Yen Chin Koay, John Park, David E James, Stuart M Grieve, Terence P Speed, Pengyi Yang and 3 more

Abstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing 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

29 citing papers in PubMed.

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  3. Machine-learning-assisted screening of key flavor compounds in pumpkins.Journal of the science of food and agriculture · 2026
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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

13 authors.

Taiyun Kim *Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0002-5028-836X
Owen Tang *Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.
Stephen T VernonCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.
Katharine A KottCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0001-9923-2722
Yen Chin KoayCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.
John ParkCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.
David E JamesCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0001-5946-5257
Stuart M GrieveCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.
Terence P SpeedBioinformatics Division, Walter Eliza Hall Institute, Parkville, VIC, Australia.ORCID 0000-0002-5403-7998
Pengyi YangCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0003-1098-3138
Gemma A FigtreeCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.
John F O'SullivanCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.
Jean Yee Hwa YangCharles Perkins Centre, The University of Sydney, Sydney, NSW, Australia. jean.yang@sydney.edu.au.ORCID 0000-0002-5271-2603

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Liquid chromatography-mass spectrometry-based metabolomics studies are increasingly applied to large population cohorts, which run for several weeks or even years in data acquisition. This inevitably introduces unwanted intra- and inter-batch variations over time that can overshadow true biological signals and thus hinder potential biological discoveries. To date, normalisation approaches have struggled to mitigate the variability introduced by technical factors whilst preserving biological variance, especially for protracted acquisitions. Here, we propose a study design framework with an arrangement for embedding biological sample replicates to quantify variance within and between batches and a workflow that uses these replicates to remove unwanted variation in a hierarchical manner (hRUV). We use this design to produce a dataset of more than 1000 human plasma samples run over an extended period of time. We demonstrate significant improvement of hRUV over existing methods in preserving biological signals whilst removing unwanted variation for large scale metabolomics studies. Our tools not only provide a strategy for large scale data normalisation, but also provides guidance on the design strategy for large omics studies.

Indexed as

Chromatography, LiquidHumansMass SpectrometryMetabolomicsModels, BiologicalWorkflow

Identifiers

PMID34404777
PMCPMC8371158

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.