Content of n-3 LC-PUFA in breast milk four months postpartum is associated with infancy blood pressure in boys and infancy blood lipid profile in girls

Signe Bruun, Lenie van Rossem, Lotte Lauritzen, Steffen Husby, Lotte Neergaard Jacobsen, Kim F. Michaelsen, Maria Boysen Sandberg, Ken D Stark, Jan Sørensen, Gitte Zachariassen

4 Citations (Scopus)
49 Downloads (Pure)

Abstract

Blood pressure (BP) and blood lipid profile (BLP) have been shown to track from childhood into adulthood, and n-3 long-chain polyunsaturated fatty acids (LC-PUFAs) in breast milk have been suggested as mediators of the beneficial long-term effect of breastfeeding on BP and BLP. We aimed to investigate associations between n-3 LC-PUFA content in breast milk at 4 months postpartum and offspring BP and BLP in early life. BP and BLP were measured at 4, 18, and 36 months. Statistical analyses were sex-stratified and adjusted for gestational age, maternal pre-pregnancy body mass index (BMI), and maternal educational level. Based on 336 mother-child dyads, high n-3 LC-PUFA in breast milk was inversely associated with systolic and diastolic BP in boys at 4 months (β = -20.0 (95% CI = -33.4, -6.7), p = 0.004 and β = -10.2 (95% CI = -19.8, -0.5), p = 0.039, respectively); inversely associated with HDL cholesterol, and directly associated with triglyceride in girls at 4 months (β = -0.7 (95% CI = -1.1, -0.3), p = 0.001 and β = 3.1 (95% CI = 1.0, 5.2), p = 0.005, respectively). Associations observed at the later time points were non-significant. Furthermore, we observed sex-specific changes over time in both size and direction of the associations. Our results indicate that early intake of n-3 LC-PUFA can affect early development in cardiometabolic factors such as BP and BLP in a sex-specific manner. Follow-up and further investigation in later childhood is planned.

Original languageEnglish
Article number235
JournalNutrients
Volume11
Issue number2
Number of pages16
ISSN2072-6643
DOIs
Publication statusPublished - 1 Feb 2019

Keywords

  • Faculty of Science
  • Cohort study
  • Cardiovascular health
  • Omega-3
  • Fatty acids
  • Human milk
  • Milk composition
  • Cholesterol
  • Triglyceride

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