Evidence map›Paper›PMID 32905218›Full record

ArticleCurrent opinion in environmental science & health2020

Unsupervised dimensionality reduction for exposome research.

Vrinda Kalia, Douglas I Walker, Katherine M Krasnodemski, Dean P Jones, Gary W Miller, Marianthi-Anna Kioumourtzoglou

Open access · greenAbstract read
In one paragraph

Article in Current opinion in environmental science & health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.0field-weighted citation impact, top 26% of its field
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

8 citing papers in PubMed, 18 citations in OpenAlex.

  1. Linking the exposome to the brain-behaviour phenotype.Nature reviews. Neuroscience · 2026
    Review
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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

6 authors at 3 institutions in 1 country.

Vrinda KaliaDepartment of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032.
Douglas I WalkerDepartment of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029.
Katherine M KrasnodemskiDivision of Pulmonary, Allergy and Critical Medicine, Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30322.
Dean P JonesDivision of Pulmonary, Allergy and Critical Medicine, Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30322.
Gary W MillerDepartment of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032.
Marianthi-Anna KioumourtzoglouDepartment of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032.
Columbia University · USEmory University · USIcahn School of Medicine at Mount Sinai · US

Funding

True Metal fac coreP30ES009089 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MATTHEW S PERZANOWSKI · 1998 to 2026
$44.7M
Pilot Project ProgramP30ES019776 · NIEHS · EMORY UNIVERSITY · PI Carmen Joseph Marsit · 2013 to 2026
$22.6M
The Mount Sinai Transdisciplinary Center on Early Environmental ExposuresP30ES023515 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI Robert O Wright · 2014 to 2026
$21.3M
Untargeted Analysis ResourceU2CES030859 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI ARORA, MANISH · 2019 to 2025
$8.2M
Dissecting the pathogenesis and outcomes of PSC using multi-omics by studying the exposome and genomeRC2DK118619 · NIDDK · MAYO CLINIC ROCHESTER · PI LAZARIDIS, KONSTANTINOS N · 2018 to 2022
$7.8M
Principal Component Pursuit to Assess Exposure to Environmental Mixtures in Epidemiologic StudiesR01ES028805 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI KIOUMOURTZOGLOU, MARIANTHI-ANNA · 2018 to 2021
$2.2M
NIDDK NIH HHS RC2 DK118619NIEHS NIH HHS P30 ES009089NIEHS NIH HHS P30 ES019776NIEHS NIH HHS P30 ES023515NIEHS NIH HHS R01 ES028805NIEHS NIH HHS U2C ES030859
6 · The paper itself

Abstract

Understanding the effect of the environment on human health has benefited from progress made in measuring the exposome. High resolution mass spectrometry (HRMS) has made it possible to measure small molecules across a large dynamic range, allowing researchers to study the role of low abundance environmental toxicants in causing human disease. HRMS data have a high dimensional structure (number of predictors >> number of observations), generating information on the abundance of many chemical features (predictors) which may be highly correlated. Unsupervised dimension reduction techniques can allow dimensionality reduction of the various features into components that capture the essence of the variability in the exposome dataset. We illustrate and discuss the relevance of three different unsupervised dimension reduction techniques: principal component analysis, factor analysis, and non-negative matrix factorization. We focus on the utility of each method in understanding the relationship between the exposome and a disease outcome and describe their strengths and limitations. While the utility of these methods is context specific, it remains important to focus on the interpretability of results from each method.

Identifiers

PMID32905218
PMCPMC7467332
OpenAlexW3026699693

What OpenQuestion holds

Textmetadata
LicenceTDM
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.