The G-CSF levels in BE (102.0 ± 194.7 ng/ml, 88% detection) were respectively about 37,000-fold, 3600-fold, 12,000, and 75-fold higher than those in ERM (2.77 ± 3.28 pg/ml, 47%), IOL (28.1 ± 32.1 pg/ml, 77%), sarcoidosis (8.19 ± 11.0 pg/ml, 53%), and ARN (1.37 ± 2.74 ng/ml, 100%), indicating that levels of G-CSF were more significantly increased than those of IL-6 and IL-17A in BE. The gene discussed is IL17A; the disease is Barrett esophagus.