Comprehensive analysis of immune-related genes reveals diagnostic biomarkers and molecular subtypes in diabetic retinopathy
Fig 5
Correlation, expression, and interaction analysis of key diagnostic genes.
(A-B) Friends analysis showing semantic similarity among the five key genes. (C) Expression levels of the five key genes in DR and normal retinal samples. *p < 0.05, **p < 0.01, ***p < 0.001. (D) Correlation matrix of the five key genes across all samples. Numbers indicate Pearson correlation coefficients; blue represents positive correlation, red represents negative correlation. (E) Protein-protein interaction (PPI) network of genes associated with DR, constructed using the STRING database. Nodes represent proteins; edges represent interactions.