Chronic effects of soybean oil, VOO, or TO treatments on systolic BP. Sprague–Dawley rats received vehicle (V), soybean oil (SO; 2 g·kg−1), VOO (2 g·kg−1), and TO (1 g·kg−1), p.o. every 12 h for 14 days. Each value represents the mean ± SEM (n = 10). *, P < 0.05 and **, P < 0.01 vs. vehicle-treated rats (ANOVA).