Thus, patients after H. pylori eradication treatment showed a decrease in the AUC and in HbA1 levels with respect to patients before H. pylori eradication treatment (874.15±249.06 vs. 917.61±249.6; p = 0.006; and 5.28±0.36 vs. 5.44±0.50, p = 0.005, respectively).There were no statistically significant differences in AUC and HbA1c between patients with infection and controls (917.61±249.6 vs. 899.79±190.8 and 5.44±0.50 vs. 5.29±0.30, respectively). The gene discussed is HBA1; the disease is infection.