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Maternal metabolites during pregnancy are associated with newborn outcomes and hyperinsulinaemia across ancestries – published online 27/11/2018

Fig 4 from Kadakia paper

Rachel Kadakia, Michael Nodzenski, Octavious Talbot, Alan Kuang, James R. Bain, Michael J. Muehlbauer, Robert D. Stevens, Olga R. Ilkayeva, Sara K. O’Neal, Lynn P. Lowe, Boyd E. Metzger, Christopher B. Newgard, Denise M. Scholtens, William L. Lowe Jr for the HAPO Study Cooperative Research Group

The maternal metabolome during pregnancy offers insight into the metabolic environment surrounding a developing fetus and may impact on newborn fat deposition and insulin sensitivity. In this issue, Kadakia et al (https://doi.org/10.1007/s00125-018-4781-1) investigated these associations in 1600 mothers and offspring who participated in the Hyperglycemia and Adverse Pregnancy Outcome (HAPO) study. Metabolomics assays were performed on maternal fasting and 1 h post glucose load serum samples. The authors identified several individual maternal fatty acid, lipid and amino acid metabolites at 1 h post glucose load that were associated with newborn sum of skinfolds, birthweight and cord C-peptide, a measure of fetal insulinaemia. These findings suggest that the maternal metabolomic response to a glucose load may have a greater impact on newborn size than the fasting state. In addition, maternal metabolites may mediate the well-known associations of maternal BMI and maternal glucose with newborn size. A unique maternal metabolomic signature may emerge as an early-life biomarker of offspring obesity risk.

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