Relationship between the lipid composition of maternal plasma and infant plasma through breast milk

Samuel Furse1, Georgia Billing2, Stuart G Snowden1

  • 1Core Metabolomics and Lipidomics Laboratory, Wellcome Trust-MRC, Institute of Metabolic Science, University of Cambridge, c/o Level 4 Pathology, Addenbrooke's Hospital, Cambridge, CB2 0QQ, UK.

Insights

Infant plasma lipids linked to development are associated with maternal circulation lipids. This suggests maternal diet may influence infant lipid profiles and development.

Area of Science:

  • Biochemistry
  • Human Physiology
  • Nutritional Science

Background:

  • Infant development is known to correlate with specific plasma lipid profiles.
  • The influence of maternal dietary intake on infant lipid biomarkers is not fully understood.

Purpose of the Study:

  • To investigate the hypothesis that maternal dietary intake influences the abundance of candidate lipid biomarkers in infant plasma.
  • To explore the relationship between maternal and infant lipid profiles in exclusively breastfeeding mother-infant pairs.

Main Methods:

  • Observational study of 30 exclusively breastfeeding mother-infant pairs in West Africa.
  • Collection of maternal plasma, milk, and infant plasma within 24 hours and 3 months postpartum.
  • Lipid, sterol, and glyceride composition analysis using direct infusion mass spectrometry (MS) and statistical testing.

Main Results:

  • Maternal and infant plasma lipid profiles are similar yet distinct, and both differ from milk composition.
  • Specific lipids like Phosphatidylcholines (PC) and cholesteryl esters (CEs) were more abundant in mothers, while triglycerides (TGs) were higher in infants.
  • A latent structure model indicated that infant plasma biomarkers cluster with maternal cholesteryl esters.

Conclusions:

  • The abundance of specific lipid isoforms associated with infant development is linked to maternal circulation lipid species.
  • Findings suggest a connection between maternal lipid profiles and infant development, potentially mediated by diet.
Abstract

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