Abstract
ObjectiveNeonatal Opioid Withdrawal Syndrome (NOWS) has been associated with the development of necrotizing enterocolitis (NEC) in term and late-preterm neonates. In this study, we used stool gene expression to determine if an increase in baseline inflammation in the intestine of infants with NOWS is associated with these findings.Study designStool samples were prospectively collected between days 1–3 and days 4–9 after delivery for opioid-exposed ( n = 9) or non-exposed neonates (n = 8). Stool gene expression for TLR4 and HMGB1 was determined via real-time PCR.ResultsTLR4 expression was higher in the stool of the non-exposed group in both time periods, between days 1–3 (P < 0.0001) and days 4–9 (P < 0.05) after delivery. No significant difference in HMGB1 expression was found at either time point (P > 0.05).ConclusionThese findings point to an important interplay between opioid exposure and/or NOWS and the inflammatory milieu of the neonatal intestine.
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