Resistin in Urine and Breast Milk: Relation to Type of Feeding and Anthropometry at 1-Month

Irena Santosa1, Hiromichi Shoji1, Kentaro Awata1

  • 1Department of Pediatrics and Adolescent Medicine, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan.

Pediatric Reports
|February 28, 2022
PubMed

Insights

This study found no significant difference in urinary resistin levels among infants fed breast milk, formula, or a mix. Resistin levels in urine or breast milk did not correlate with infant growth or maternal factors.

Area of Science:

  • Human Physiology
  • Pediatric Nutrition
  • Endocrinology

Background:

  • Breast milk contains adipokines (resistin, leptin) linked to protection against obesity and insulin resistance.
  • Understanding infant adipokine profiles and feeding types is crucial for early life health.
  • Pilot studies are essential for exploring novel correlations in infant metabolism.

Purpose of the Study:

  • To investigate the relationship between resistin levels, infant feeding types (breast milk vs. formula), and anthropometric parameters.
  • To analyze resistin concentrations in infant urine and maternal breast milk.
  • To explore correlations between resistin, leptin, and infant growth markers.

Main Methods:

  • Pilot study involving 32 healthy 1-month-old term infants and their mothers.
  • Categorization into breastfed, breast milk-dominant mix-fed, and formula-dominant mix-fed groups.
  • Analysis of urinary resistin, breast milk resistin, and breast milk leptin using ELISA kits.

Main Results:

  • No significant differences in urinary resistin levels were observed across the three feeding groups.
  • No correlation found between urinary resistin and breast milk resistin levels in the breastfed group.
  • No significant correlations between resistin levels (urine or breast milk) and infant weight, weight gain, or maternal factors (BMI, age, weight).

Conclusions:

  • Infant feeding type (breast milk or formula) does not appear to influence urinary resistin levels in early infancy.
  • Resistin levels, whether in urine or breast milk, do not seem to impact infant growth during the first month of life.
  • Further research is needed to fully elucidate the role of adipokines in infant development and metabolic health.