IL1RL1 and granular corneal dystrophy type II: To explore whether higher levels of IL-33 and sST2 found in the serum of ACD patients are linked to changes in the duodenal mucosa as a consequence of the enteropathy, indirect immunofluorescence was used to evaluate the pattern of expression of ST2 and IL-33 in duodenal mucosae sections of ACD and NC individuals.