Fig. 5.

Densitometric analysis and representative Western blots of nitric oxide synthase (NOS) 3/β-actin (A and B), NOS3-phosphoserine-1177 (p1177)/NOS3 (C and D) protein expression in homogenates of mesenteric arteries and plasma nitrite (E) and nitrate (F) levels from Teklad-fed (T; N = 5) and AIN-fed (A; N = 4) adult (16-wk-old) Dahl S rats. At 12 wk old, weaning-diet groups were divided, with a subset of rats undergoing a diet switch, thereby generating two additional diet groups: Teklad→AIN (T→A; N = 7) and AIN→Teklad (A→T; N = 6). Values are means ± SE. *P < 0.05 vs. T. †P < 0.05 vs. corresponding weaning group (T or A). Data were analyzed by two-way ANOVA. AU, arbitrary units.