
In a Hirschsprung disease mouse model, diet shifted gut microbes and inflammation, with a 3-fold survival difference between standard diets.
The 5-week-old girl just admitted to your pediatric service is here for evaluation of lethargy, jaundice, and poor weight gain after hardly a month at home. Admission came at the request of the gastroenterologist to whom she had been referred by her primary care pediatrician because of rising direct hyperbilirubinemia.





