Evidence map›Paper›PMID 28662051›Full record

ArticlePloS one2017

RRmix: A method for simultaneous batch effect correction and analysis of metabolomics data in the absence of internal standards.

Stephen Salerno, Mahya Mehrmohamadi, Maria V Liberti, Muting Wan, Martin T Wells, James G Booth, Jason W Locasale

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Trial
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  12. Promises and pitfalls of untargeted metabolomics.Journal of inherited metabolic disease · 2018
    Review
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.

Stephen SalernoDepartment of Biostatistics, University of Michigan, Ann Arbor, Michigan, United States of America.
Mahya MehrmohamadiDepartment of Molecular Biology and Genetics, Field of Genomics, Genetics and Development, Cornell University, Ithaca, New York, United States of America.ORCID http://orcid.org/0000-0002-6681-0810
Maria V LibertiDuke Cancer Institute, Duke Molecular Physiology Institute and Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, North Carolina, United States of America.
Muting WanDepartment of Statistical Science, Cornell University, Ithaca, New York, United States of America.
Martin T WellsDepartment of Statistical Science, Cornell University, Ithaca, New York, United States of America.
James G BoothDepartment of Statistical Science, Cornell University, Ithaca, New York, United States of America.
Jason W LocasaleDepartment of Molecular Biology and Genetics, Field of Genomics, Genetics and Development, Cornell University, Ithaca, New York, United States of America.

Funding

Women's Cancer Research ProgramP30CA014236 · NCI · DUKE UNIVERSITY · PI DONNA NIEDZWIECKI · 1985 to 2026
$174.8M
Viable but Nonculturable MtbU19AI111143 · NIAID · WEILL MEDICAL COLL OF CORNELL UNIV · PI AUBE, JEFFREY, GLICKMAN, MICHAEL S · 2014 to 2020
$48.6M
PREDOCTORAL TRAINING IN GENETICS AND DEVELOPMENTT32GM007617 · NIGMS · CORNELL UNIVERSITY ITHACA · PI BARBASH, DANIEL A · 1985 to 2021
$5.5M
Dietary methionine and cancerR01CA193256 · NCI · DUKE UNIVERSITY · PI LOCASALE, JASON W. · 2015 to 2023
$3.1M
Understanding metabolic flux and the control of mammalian cell growthR00CA168997 · NCI · DUKE UNIVERSITY · PI LOCASALE, JASON W. · 2013 to 2015
$695k
Characterization of the functions of one-carbon metabolism across human cancersK00CA212457 · NCI · STANFORD UNIVERSITY · PI MEHRMOHAMADI, MAHYA · 2017 to 2019
$228k
Characterization of the functions of one-carbon metabolism across human cancersF99CA212457 · NCI · CORNELL UNIVERSITY · PI MEHRMOHAMADI, MAHYA · 2016 to 2016
$32k
NCI NIH HHS F99 CA212457NCI NIH HHS K00 CA212457NCI NIH HHS P30 CA014236NCI NIH HHS R00 CA168997NCI NIH HHS R01 CA193256NIAID NIH HHS U19 AI111143NIGMS NIH HHS T32 GM007617
6 · The paper itself

Abstract

With the surge of interest in metabolism and the appreciation of its diverse roles in numerous biomedical contexts, the number of metabolomics studies using liquid chromatography coupled to mass spectrometry (LC-MS) approaches has increased dramatically in recent years. However, variation that occurs independently of biological signal and noise (i.e. batch effects) in metabolomics data can be substantial. Standard protocols for data normalization that allow for cross-study comparisons are lacking. Here, we investigate a number of algorithms for batch effect correction and differential abundance analysis, and compare their performance. We show that linear mixed effects models, which account for latent (i.e. not directly measurable) factors, produce satisfactory results in the presence of batch effects without the need for internal controls or prior knowledge about the nature and sources of unwanted variation in metabolomics data. We further introduce an algorithm-RRmix-within the family of latent factor models and illustrate its suitability for differential abundance analysis in the presence of strong batch effects. Together this analysis provides a framework for systematically standardizing metabolomics data.

Indexed as

AlgorithmsCell Line, TumorChromatography, LiquidHumansMass SpectrometryMetabolomicsReference Standards

Identifiers

PMID28662051
PMCPMC5491020

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.