Fig. 4From: Plasma metabolomic profiling of proliferative diabetic retinopathyMetabolite classification analysis. Pie chart of differentially metabolomics showed that the 1027 metabolites mainly involved carboxylic acids and derivatives (37.79%), fatty acyls and fatty acid esters (26.16%), pyrimidine nucleotides (19.19%), amino acids, peptides, and analogues (7.56%) and othersBack to article page