Effect of GGDGT on eNOS expression in the aorta of Western diet (WD)-fed ApoE-/- mice. (A) Representative microscopic photographs of aortas immunodetected for endothelial nitric oxide synthase (eNOS) (upper panels, magnification × 100; middle panels, magnification × 400; lower panels, magnification × 100). (B) Quantification of eNOS expression. Aortas were obtained from regular diet (RD)-fed control mice, WD-fed ApoE-/- mice, rosiglitazone-treated mice, and Gal-geun-dang-gwi-tang (GGDGT)-treated mice. Values are expressed as a percentage of the density of the blot coloured dark brown (mean ± S.E.) (n = 6 mice per group). **p < 0.01 vs. RD-fed control mice; ##p < 0.01 vs. WD-fed ApoE-/- mice.