Fig 1: Immunophenotypes and phagocytosis of intestinal macrophages analyzed by immunofluorescence and flow cytometry. A The total number of macrophages (CD68 + cells), M1 macrophages (CD86 + cells), and M2 macrophages (CD163 + cells) in the intestinal mucosa of HC (n = 5), UC (n = 10) and UD (n = 10) patients; B phagocytosis of intestinal lamina propria macrophages in UC (n = 3) and UD (n = 2) patients. HC: healthy controls; UC: UC patients without symptoms of anxiety/depression; UD: UC patients with symptoms of anxiety/depression. Figures were taken under 400 × magnification field of vision. *P < 0.05, ****P < 0.0001