Tocotrienol Rich Palm Oil Extract Is More Effective Than Pure Tocotrienols at Improving Endothelium-Dependent Relaxation in the Presence of Oxidative Stress

Figure 4

Endothelium-dependent relaxation in rat aortae in the presence of pyrogallol (P): cumulative concentration-response curves to ACh in the absence (control) or presence of pyrogallol with varying combinations of α-tocopherol (TC) and α-, δ-, and γ-tocotrienols (T3) (10⁻⁴mg/mL). Tocotrienol isomers and α-tocopherol were present in the proportions found in tocomin (i.e., α-T3- 20%, δ-T3 10%, γ-T3 50%, and α-TC 20%). Data is expressed as mean ± SEM. ^*Significantly different to control . ^#Significantly different to pyrogallol Sidak’s multiple comparison test.