Figure 1. HG promotes exosomes secretion in MAECs. (A) CCK-8 was used to detect cell viability in VSMCs co-cultured with MAECs (**p < 0.01 MAECs vs. NC). (B) Cell viability was detected by Edu assay. (C) NTA measured the size distribution of exosomes from an HG or NG condition. (D) Western blot analysis detected the expression of exosome markers CD63 and TSG 101.