Association Between Pro-inflammatory Cytokine Levels (IL-1β, IL-6, and TNF-α) in Human Colostrum and Maternal Body...

Area of Science:

• Human lactation and immunology.
• Maternal-fetal health.
• Nutritional science and bioactive components.

Background:

• Obesity is a chronic inflammatory condition.
• Breast milk (BM) contains bioactive components influenced by maternal factors.
• Understanding maternal body composition's effect on BM's inflammatory profile is crucial.

Purpose of the Study:

• To investigate the association between maternal body composition and pro-inflammatory cytokines in human colostrum.
• To analyze levels of interleukin-1 beta (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-α) in relation to maternal weight status.

Main Methods:

• Cross-sectional study of 117 healthy postpartum women, categorized by bioelectrical impedance vector analysis (BIVA) into normal weight, overweight, and obese groups.
• Colostrum samples collected within 24 hours postpartum.
• Quantification of IL-1β, IL-6, and TNF-α levels via immunoassay.

Main Results:

• No significant difference in IL-1β levels across maternal weight groups.
• Significantly higher IL-6 levels observed in overweight women compared to normal-weight and obese women (p=0.02).
• Significantly higher TNF-α levels observed in overweight women compared to normal-weight women (p=0.02).

Conclusions:

• Maternal body composition, specifically being overweight, is associated with elevated IL-6 and TNF-α concentrations in colostrum.
• These findings suggest maternal adiposity influences the inflammatory cytokine profile of early breast milk.
• Further research is warranted to understand the implications for infant health.