A new review suggests that necrotising enterocolitis (NEC) in preterm infants may trigger inflammation that harms brain development, highlighting the need for closer long-term monitoring and targeted therapies.
A new review suggests that necrotising enterocolitis may do more than injure the bowel in premature babies: it may also set off a chain of inflammation that harms the developing brain. The paper, published in the World Journal of Pediatric Surgery, argues that neurodevelopmental damage should be viewed as a central feature of the disease rather than only a consequence of prematurity.
Necrotising enterocolitis, or NEC, is a serious intestinal emergency in preterm infants and remains one of the most dangerous conditions seen in neonatal intensive care. The review says survivors can face lasting problems with movement, learning and behaviour, with some children later developing cerebral palsy or sensory impairment. Earlier work on the gut-brain axis has already suggested that bowel injury can trigger body-wide inflammation that reaches the brain, contributing to white matter damage, slower head growth and poorer developmental outcomes.
According to the review, the extent of bowel damage appears to matter. Infants who need surgery, and who tend to have more severe intestinal injury, have been reported to have worse neurological outcomes than those treated without an operation. The authors also point to imaging studies showing reduced brain volume, delayed cortical development and white matter injury. They argue that inflammation may disrupt the blood-brain barrier, allowing immune signals and inflammatory proteins from the gut to affect the brain directly.
The paper highlights several possible mechanisms, including a role for the protein HMGB1 and Toll-like receptor 4, a pathway linked to immune activation. Other studies on NEC and neurodevelopment have pointed to microbial imbalance, barrier failure and altered gut-brain signalling as possible contributors. The review says these findings strengthen the case for closer long-term follow-up of NEC survivors and for research into treatments that might reduce inflammation before permanent neurological harm occurs.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
