The results are presented in Figures 1C,D, demonstrating that Ang II infusion significantly increased the diameter of cardiomyocytes, thus inducing severe cardiac hypertrophy (15.5 ± 0.5 μm in the Saline + Lv-GFP group vs. 22.5 ± 1.2 μm in the Ang II + Lv-GFP group, n = 6, p < 0.05). This evidence concerns the gene AGT and cardiac hypertrophy.