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Metabolomics. 2020 Mar 23;16(4):43. doi: 10.1007/s11306-020-01667-1.

A population-based resource for intergenerational metabolomics analyses in pregnant women and their children: the Generation R Study.

Author information

1
The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
2
Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
3
Division of Metabolic and Nutritional Medicine, Dr. Von Hauner Children's Hospital, LMU - Ludwig-Maximilians Universität München, Munich, Germany.
4
The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands. r.gaillard@erasmusmc.nl.
5
Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands. r.gaillard@erasmusmc.nl.
6
The Generation R Study Group, Erasmus MC, University Medical Center, Room Na-2908, PO Box 2040, 3000 CA, Rotterdam, The Netherlands. r.gaillard@erasmusmc.nl.

Abstract

INTRODUCTION:

Adverse exposures in early life may predispose children to cardio-metabolic disease in later life. Metabolomics may serve as a valuable tool to disentangle the metabolic adaptations and mechanisms that potentially underlie these associations.

OBJECTIVES:

To describe the acquisition, processing and structure of the metabolomics data available in a population-based prospective cohort from early pregnancy onwards and to examine the relationships between metabolite profiles of pregnant women and their children at birth and in childhood.

METHODS:

In a subset of 994 mothers-child pairs from a prospective population-based cohort study among pregnant women and their children from Rotterdam, the Netherlands, we used LC-MS/MS to determine concentrations of amino acids, non-esterified fatty acids, phospholipids and carnitines in blood serum collected in early pregnancy, at birth (cord blood), and at child's age 10 years.

RESULTS:

Concentrations of diacyl-phosphatidylcholines, acyl-alkyl-phosphatidylcholines, alkyl-lysophosphatidylcholines and sphingomyelines were the highest in early pregnancy, concentrations of amino acids and non-esterified fatty acids were the highest at birth and concentrations of alkyl-lysophosphatidylcholines, free carnitine and acyl-carnitines were the highest at age 10 years. Correlations of individual metabolites between pregnant women and their children at birth and at the age of 10 years were low (range between r = - 0.10 and r = 0.35).

CONCLUSION:

Our results suggest that unique metabolic profiles are present among pregnant women, newborns and school aged children, with limited intergenerational correlations between metabolite profiles. These data will form a valuable resource to address the early metabolic origins of cardio-metabolic disease.

KEYWORDS:

Amino acids; Birth cohort; Carnitines; Fatty acids; Metabolomics; Phospholipids

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