449 PAI-1 AS AN EPITHELIAL MARKER OF DISEASE SEVERITY IN PEDIATRIC
EOSINOPHILIC ESOPHAGITIS. Prerana Williamson1,2,3, Ranjan Dohil1,2,3, Maheen Hassan1,2,3,
Armen Gharibans3,4,5, Jacqueline Barsamian3, Lucas Dohil1,8, Robert Newbury3,6, Hayat Mousa1,2,3,
Seema Aceves3,7,8. 1Department of Pediatrics, University of California San Diego, San Diego, CA, USA;
2Division of Pediatric Gastroenterology, University of California San Diego, San Diego, CA, USA;
3Rady Children's Hospital, San Diego, CA, USA; 4Department of Surgery, University of Auckland,
Auckland, New Zealand; 5Auckland Bioengineering Institute, University of Auckland, Auckland,
New Zealand; 6Department of Pathology, University of California San Diego, San Diego, CA, USA;
7Department of Medicine and Pediatrics, University of California San Diego, San Diego, CA, USA;
8Division of Allergy and Immunology, University of California San Diego, San Diego, CA, USA