Do patient's with eosinophilic esophagitis have increased small intestinal permeability and if this changes in response to topically administered esophageal steroids?

Eosinophilic esophagitis is an allergy mediated disease in which antigens exposed to the gastrointestinal tract trigger a combined immediate hypersensitivity.

The investigators anticipate that patients with active eosinophilic esophagitis will have increased intestinal permeability on urine collection of sugars. The investigators are not sure whether these findings will be found in patients who have been successfully treated with topical esophageal steroids. Improvement in intestinal permeability would be perceived as indicating that esophageal disease drives the intestinal permeability. Lack of improvement would indicate that eosinophilic esophagitis is a more systemic disease in which increased small bowel permeability is a marker or perhaps important driver of the disease.

Inclusion Criteria:

• Subjects between the ages of 18 and 80 with Eosinophilic Esophagitis diagnosed by compatible symptoms, endoscopic findings, histology and lack of response to proton pump inhibitors or negative pH study.

Exclusion:

• Vulnerable populations, such as those with diminished mental acuity, will be excluded.
• Patients allergic to Lactulose
• Women who are pregnant or lactating.