Defining the Healthy Infant Metabolome: Liquid Chromatography Tandem-Mass Spectrometry Analysis of Dried Blood Spot Extracts from the Prospective Research on Early Determinants of Illness and Children's Health Trajectories Birth Cohort Study

J Pediatr. 2022 Feb:241:251-256.e4. doi: 10.1016/j.jpeds.2021.09.061. Epub 2021 Oct 7.

Abstract

Newborn screening using dried plasma spots offers preanalytical advantages over conventional cards for plasma-associated targets of interest. Herein we present dried plasma spot-based methods for measuring metabolites using a 250+ compound liquid chromatography tandem mass spectrometry library. Quality assurance reduced this library to 134, and from these, 30 compounds determined the normal newborn reference ranges.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Biomarkers / blood*
  • Blood Preservation / methods
  • Blood Preservation / standards
  • Chromatography, Liquid*
  • Dried Blood Spot Testing / methods*
  • Dried Blood Spot Testing / standards
  • Female
  • Humans
  • Infant
  • Infant, Newborn
  • Male
  • Metabolome*
  • Neonatal Screening / methods*
  • Neonatal Screening / standards
  • Prospective Studies
  • Reference Values
  • Specimen Handling / methods
  • Specimen Handling / standards
  • Tandem Mass Spectrometry*

Substances

  • Biomarkers