The pathophysiology for this disorder is mostly unknown but there have been a few propositions for its origin. One study suggested that a transient platelet activation of the infant's portal system is responsible for this<unk> . Another study proposed that this occurs due to a shunting of blood away from the portal system of the liver through the ductus venosus directly into the systemic circulation. This causes the blood to skip the step of ammonia removal in the liver.
Transient hyperammonemia of the newborn
Permanent neonatal diabetes
Neonatal hepatitis
Hemolytic disease of the newborn
Hemolytic disease of the newborn 
Transient neonatal diabetes
Neonatal diabetes
Neonatal hypoglycemia