Gestational diabetes & diabetes in pregnancy

Short-term modulation of human milk oligosaccharides in plasma and milk by glucose and insulin: insights into postpartum metabolic regulation

DiabetologiaPublished Mechanistic study

Authors' conclusion

Circulating HMOs persist during lactation and are acutely regulated by glucose and insulin.

Study context

Population
Women at 5–7 weeks postpartum (16 with prior GDM; 18 breastfeeding)
Participants
28 women
Outcome
Circulating HMOs postpartum, their short-term modulation by glucose and insulin, and relationship between plasma and milk HMO profiles
Follow-up
5-7 weeks postpartum
Methodological detailsOral glucose tolerance test (OGTT) and hyperinsulinaemic-euglycaemic clamp
  • OGTT and hyperinsulinaemic-euglycaemic clamp

Main finding

As reported in the abstract

Human milk oligosaccharides (HMOs) detected in milk

17

HMOs also detected in plasma, at concentrations ≈10,000-fold lower but highly correlated across compartments

6

Original publication

Short-term modulation of human milk oligosaccharides in plasma and milk by glucose and insulin: insights into postpartum metabolic regulation. Diabetologia. Published 17 April 2026. doi:10.1007/s00125-026-06729-y

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