Single Protein Dose at Birth Could Prevent Lifelong Gut Disorders in Newborns

Researchers at the University of Würzburg have uncovered a link between low levels of S100A8/A9 proteins in breast milk and chronic intestinal inflammation in newborns. Their findings suggest that a single dose of S100A8 given at birth could prevent lifelong gut disorders caused by maternal malnutrition. The team from the Department of Translational Pediatrics identified that insufficient S100A8/A9 in breast milk leads to poor gut development and an unfavourable microbiome in full-term infants. Maternal malnutrition reduces these proteins, which are known as alarmins and help regulate inflammation in the body.

A single administration of S100A8 to newborns was found to ensure healthy intestinal growth and protect against long-term inflammation. Children with low levels of these proteins after birth face a higher risk of severe infections, particularly preterm babies.

The study will now explore how S100A8/A9 affects the epithelial cells lining the gut. Researchers also plan to test its impact on disease, the microbiome, and potential side effects. Their goal is to provide dosage guidelines for future clinical trials. Intestinal infections remain a leading cause of childhood deaths, accounting for over 10% globally. The findings offer a potential solution to reduce this risk by addressing protein deficiencies early in life. Further research could lead to clinical applications for preventing gut-related disorders in vulnerable infants.