To assess the relationship between AGI scores and biomarkers level in sepsis, the changes in citrulline and I-FABP levels over time were analyzed in three subgroups, according to highest AGI score calculated during ICU stay: AGI I as the highest calculated score occurred in 20 patients, AGI II in 19, and 19 patients developed severe GI damage and were diagnosed with GI failure (AGI score III). Here, FABP2 is linked to Sepsis.