Evidence map›Paper›PMID 29706849›Full record

ArticleMetabolomics : Official journal of the Metabolomic Society2017

An untargeted metabolomics method for archived newborn dried blood spots in epidemiologic studies.

Lauren Petrick, William Edmands, Courtney Schiffman, Hasmik Grigoryan, Kelsi Perttula, Yukiko Yano, Sandrine Dudoit, Todd Whitehead, Catherine Metayer, Stephen Rappaport

Abstract read
In one paragraph

Article in Metabolomics : Official journal of the Metabolomic Society, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

41 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Molecular Reactivity in Maternal Pregnancy Blood and Neonatal Dried Blood Spots Is Associated with the Risk of Pediatric Acute Lymphoblastic Leukemia.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2025
    Article
  7. Prenatal Nitrogen Oxide (NOEnvironmental science & technology · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Advancing Exposomic Research in Prenatal Respiratory Disease Programming.Immunology and allergy clinics of North America · 2023
    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

10 authors at 3 institutions in 1 country.

Lauren PetrickDivision of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720 USA.
William EdmandsDivision of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720 USA.
Courtney SchiffmanDivision of Biostatistics, School of Public Health, University of California, Berkeley, CA 94720 USA.
Hasmik GrigoryanDivision of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720 USA.
Kelsi PerttulaDivision of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720 USA.
Yukiko YanoDivision of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720 USA.
Sandrine DudoitDivision of Biostatistics, School of Public Health, University of California, Berkeley, CA 94720 USA.
Todd WhiteheadDivision of Epidemiology, School of Public Health, University of California, Berkeley, CA 94720 USA.
Catherine MetayerDivision of Epidemiology, School of Public Health, University of California, Berkeley, CA 94720 USA.
Stephen RappaportDivision of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720 USA.
Center for Environmental Health · USBerkeley Public Health Division · USUniversity of California, Berkeley · US

Funding

Training CoreP42ES004705 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI SEDLAK, DAVID L. · 1987 to 2025
$74.6M
Environmental and Molecular Epidemiology of Childhood LeukemiaR01ES009137 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI METAYER, CATHERINE · 1999 to 2013
$21.1M
Project 3 - Prenatal Exposures, Constitutive Genetics, DNA Methylation & Childhood LeukemiaP50ES018172 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI METAYER, CATHERINE · 2015 to 2019
$3.8M
Project 3: Prenatal Exposure, DNA Methylation & Childhood LeukemiaP01ES018172 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI METAYER, CATHERINE · 2009 to 2013
$3.7M
NIEHS NIH HHS P01 ES018172NIEHS NIH HHS P42 ES004705NIEHS NIH HHS P50 ES018172NIEHS NIH HHS R01 ES009137
6 · The paper itself

Abstract

introductionFor pediatric diseases like childhood leukemia, a short latency period points to in-utero exposures as potentially important risk factors. Untargeted metabolomics of small molecules in archived newborn dried blood spots (DBS) offers an avenue for discovering early-life exposures that contribute to disease risks.

objectivesThe purpose of this study was to develop a quantitative method for untargeted analysis of archived newborn DBS for use in an epidemiological study (California Childhood Leukemia Study, CCLS).

methodsUsing experimental DBS from the blood of an adult volunteer, we optimized extraction of small molecules and integrated measurement of potassium as a proxy for blood hematocrit. We then applied this extraction method to 4.7-mm punches from 106 control DBS samples from the CCLS. Sample extracts were analyzed with liquid chromatography high resolution mass spectrometry (LC-HRMS) and an untargeted workflow was used to screen for metabolites that discriminate population characteristics such as sex, ethnicity, and birth weight.

resultsThousands of small molecules were measured in extracts of archived DBS. Normalizing for potassium levels removed variability related to varying hematocrit across DBS punches. Of the roughly 1,000 prevalent small molecules that were tested, multivariate linear regression detected significant associations with ethnicity (3 metabolites) and birth weight (15 metabolites) after adjusting for multiple testing.

conclusionsThis untargeted workflow can be used for analysis of small molecules in archived DBS to discover novel biomarkers, to provide insights into the initiation and progression of diseases, and to provide guidance for disease prevention.

Indexed as

dried blood spotshematocritLC-HRMSmetabolomesmall molecules

Identifiers

PMID29706849
PMCPMC5918689
OpenAlexW2583383988

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.