Umbilical cord blood metabolome differs in relation to delivery mode, birth order and sex, maternal diet and possibly future allergy development in rural children
Journal article, 2021

Allergy is one of the most common diseases among young children yet all factors that affect development of allergy remain unclear. In a small cohort of 65 children living in the same rural area of south-west Sweden, we have previously found that maternal factors, including prenatal diet, affect childhood allergy risk, suggesting that in utero conditions may be important for allergy development. Here, we studied if metabolites in the umbilical cord blood of newborns may be related to development of childhood allergy, accounting for key perinatal factors such as mode of delivery, birth order and sex. Available umbilical cord blood plasma samples from 44 of the participants were analysed using gas chromatography-mass spectrometry metabolomics; allergy was diagnosed by specialised paediatricians at ages 18 months, 3 years and 8 years and included eczema, asthma, food allergy and allergic rhinoconjunctivitis. Nineteen cord blood metabolites were related to future allergy diagnosis though there was no clear pattern of up- or downregulation of metabolic pathways. In contrast, perinatal factors birth order, sex and mode of delivery affected several energy and bio-synthetic pathways, including glutamate and aspartic acid—histidine metabolism (p = 0.004) and the tricarboxylic acid cycle (p = 0.006) for birth order; branched chain amino acid metabolism (p = 0.0009) and vitamin B6 metabolism (p = 0.01) for sex; and glyoxylate and dicarboxylic acid metabolism (p = 0.005) for mode of delivery. Maternal diet was also related to some of the metabolites associated with allergy. In conclusion, the cord blood metabolome includes individual metabolites that reflect lifestyle, microbial and other factors that may be associated with future allergy diagnosis, and also reflects temporally close events/factors. Larger studies are required to confirm these associations, and perinatal factors such as birth order or siblings must be considered in future cord-blood metabolome studies.

Author

Alastair Ross

Chalmers, Biology and Biological Engineering, Food and Nutrition Science

AgResearch Lincoln Research Centre

Malin Barman

Chalmers, Biology and Biological Engineering, Food and Nutrition Science

Olle Hartvigsson

Chalmers, Biology and Biological Engineering, Food and Nutrition Science

Anna Carin Lundell

University of Gothenburg

Otto Savolainen

Chalmers, Biology and Biological Engineering, Systems and Synthetic Biology, CMSI

Bill Hesselmar

University of Gothenburg

Agnes E. Wold

University of Gothenburg

Ann-Sofie Sandberg

Chalmers, Biology and Biological Engineering, Food and Nutrition Science

PLoS ONE

1932-6203 (ISSN)

Vol. 16 1 January e0242978

Subject Categories

Pediatrics

Environmental Health and Occupational Health

Nutrition and Dietetics

DOI

10.1371/journal.pone.0242978

PubMed

33493154

More information

Latest update

2/18/2021