Evidence from 3-month-old infants shows that a combination of postnatal feeding and exposures in utero shape lipid metabolism.
Samuel FurseStuart G SnowdenLaurentya OlgaPhilippa PrenticeKen K OngIeuan A HughesCarlo L AceriniProfessor David DungerAlbert KoulmanPublished in: Scientific reports (2019)
We tested the hypothesis that both postnatal feeding and conditions in utero affect lipid metabolism in infants. Infants who experienced restrictive growth conditions in utero and others exposed to maternal hyperglycaemia were compared to a control group with respect to feeding mode. Dried blood spots were collected from a pilot subset of infant participants of the Cambridge Baby Growth Study at 3mo. Groups: (a) a normal gestation (control, n = 40), (b) small for gestational age (SGA, n = 34) and (c) whose mothers developed hyperglycaemia (n = 59). These groups were further stratified by feeding mode; breastfed, formula-fed or received a mixed intake. Their phospholipid, glyceride and sterol fractions were profiled using direct infusion mass spectrometry. Statistical tests were used to identify molecular species that indicated differences in lipid metabolism. The abundance of several phospholipids identified by multivariate analysis, PC(34:1), PC(34:2) and PC-O(34:1), was 30-100% higher across all experimental groups. SM(39:1) was around half as abundant in in utero groups among breastfed infants only. The evidence from this pilot study shows that phospholipid metabolism is modulated by both conditions in utero and postnatal feeding in a cohort of 133 Caucasian infants, three months post partum.
Keyphrases
- gestational age
- preterm infants
- fatty acid
- birth weight
- mass spectrometry
- preterm birth
- low dose
- randomized controlled trial
- weight gain
- air pollution
- single molecule
- high resolution
- physical activity
- data analysis
- antibiotic resistance genes
- african american
- genetic diversity
- tandem mass spectrometry
- gas chromatography