Increase in plasma platelet-activating factor levels in enterally fed preterm infants

Area of Science:

• Neonatal Medicine
• Gastroenterology
• Biochemistry

Background:

• Platelet-activating factor (PAF) is linked to neonatal necrotizing enterocolitis (NEC) pathogenesis.
• Understanding PAF dynamics in premature infants is crucial for NEC prevention and treatment.

Purpose of the Study:

• To prospectively investigate plasma PAF levels in premature infants (<32 weeks gestation) during the first 14 days of feeding.
• To determine if elevated PAF correlates with NEC development.

Main Methods:

• Prospective study design.
• Measurement of plasma PAF levels in neonates (<32 weeks gestation) on day 0, day 3, and day 14 of feeding.
• Analysis of potential confounding factors: acetylhydrolase activity, endotoxemia, and maturational effects.

Main Results:

• Significantly increased detectable plasma PAF levels were observed on day 3 (26%) and day 14 (18.5%) compared to prefeeding levels (7% and 0%, respectively).
• Elevated PAF was not explained by reduced enzyme activity, endotoxemia, or infant maturation.
• No infants with detectable PAF post-feeding developed NEC.

Conclusions:

• Increased intestinal PAF production may occur with feeding in some premature infants.
• Elevated PAF alone is not a sufficient condition for developing NEC.
• Further research into PAF's role in NEC pathogenesis is warranted.