Alteration of intestinal microbiota is associated with diabetic retinopathy and its severity: Samples collected from southeast coast Chinese

Figure 4 The composition at phylum level in the six groups. A: The composition at phylum level in Group DM and Group C. The abundance of Firmicutes, Bacteroidetes, Proteobacteria and Actinobacteria varied between the two groups; B: The composition at phylum level in Group DR and Group D. The relative mean abundance of phylum Bacteroidetes and Firmicutes between Group D and Group DR were similar (P = 0.33, P = 0.37); C: The composition at phylum level in Group PDR and Group NPDR. The relative mean abundance of phylum Bacteroidetes, Firmicutes and showed a similarity between Group PDR and NPDR (P = 0.71, P = 0.33). Group C: Samples with non-diabetics; Group DM: Samples with diabetics; Group DR: Samples with diabetic retinopathy; Group D: Samples without diabetic retinopathy; Group PDR: Patients with proliferative diabetic retinopathy; Group NPDR: Patients without proliferative diabetic retinopathy.