Serum homocysteine showed potential association with cognition and abnormal gut microbiome in major depressive disorder

Figure 1 The alpha diversity indices between healthy controls and major depressive disorder groups. A: Chao; B: Ace; C: Shannon diversity; D: Simpson diversity. Wilcoxon signed-rank test was applied to compare the alpha diversity indices between healthy controls and major depressive disorder groups. MDD: Major depressive disorder; HC: Healthy control.