Figure 7. Fecal DPA levels are higher in patients with IFC.
Stool specimens from participants with IFC and healthy volunteers underwent methanol/H2O/dichloromethane extraction and were sampled for HPLC analysis. (A and B) Representative chromatograms for fecal DPA in samples from the IFC and healthy groups. The arrow indicates a fecal DPA peak. (C) A liquid chromatogram of DPA standards (0.03125 ng) was performed to calculate DPA concentration in stool, indicated by an arrow. (D) Relative fecal DPA levels in the IFC patient and healthy groups (CTR, n = 97; IFC, n = 68). Data are presented as mean ± SD. **P < 0.01 (unpaired 2-tailed t test).