Short-Term Bixin Supplementation of Healthy Subjects Decreases the Susceptibility of LDL to Cu²⁺-Induced Oxidation Ex Vivo

Figure 3

Effect of carotenoid supplementation on the susceptibility of LDL to Cu²⁺-induced oxidation ex vivo. The oxidation of the protein moiety was assessed as the time required to lose half-maximal tryptophan fluorescence (a), whereas the oxidation of the lipid moiety was assessed as the lag time for the formation of conjugated dienes (b) and the oxidation rate (c). Results (mean ± SEM) are presented as the delta values between final and baseline values. Different letters indicate a significant difference among treatments ().

(a)

(b)

(c)