Research Article

Increased Levels of Human Carotid Lesion Linoleic Acid Hydroperoxide in Symptomatic and Asymptomatic Patients Is Inversely Correlated with Serum HDL and Paraoxonase 1 Activity

Table 2

Atherogenic and antiatherogenic elements in the plaques and blood of symptomatic and asymptomatic patients.

Symptomatic ( 𝑛 = 6 ) Asymptomatic ( 𝑛 = 1 3 ) P value

PlaquePON lactonase activity (U/mg proteins) 0 . 1 6 ± 0 . 0 3 5    ( 𝑛 = 8 ) 0 . 1 8 ± 0 . 0 5 4 ( 𝑛 = 9 ) N.S.
Triglyceride (% of LLE) 3 . 4 ± 1 . 0 7 2 . 3 7 ± 0 . 3 7 N.S.
7-keto (% of cholesterol) 0 . 3 8 ± 0 . 1 9 0 . 2 5 ± 0 . 0 5 N.S.
26-OH (% of cholesterol) 1 . 1 6 ± 0 . 2 7 1 . 2 9 ± 0 . 1 9 N.S.
7α-OH (% of cholesterol) 0 . 0 8 7 ± 0 . 0 1 5 0 . 0 8 5 ± 0 . 0 1 N.S.
7β-OH (% of cholesterol) 0 . 0 7 5 ± 0 . 0 1 0 . 0 8 ± 0 . 0 0 9 N.S.
β-epoxy (% of cholesterol) 0 . 0 9 6 ± 0 . 0 1 0 . 1 1 4 ± 0 . 0 2 N.S.
α-epoxy (% of cholesterol) 0 . 0 5 5 ± 0 . 0 0 4 0 . 0 6 9 ± 0 . 0 0 8 N.S.
LA-13OOH (μg/mg plaque) 0 . 0 1 2 ± 0 . 0 0 2 0 . 0 0 5 3 ± 0 . 0 0 0 9 0.019

SerumPON1 lactonase activity (U/mL) 3 8 ± 3 . 2 4 5 ± 2 . 9 N.S.
HbA1c (%) 7 . 1 7 ± 0 . 4 8 6 . 0 4 ± 0 . 1 5 0.065
HDL (mg/dL) 3 7 . 8 ± 3 . 3 5 5 1 . 7 ± 3 . 0 6 0.009
LDL (mg/dL) 7 9 ± 1 3 . 2 9 0 . 9 ± 4 . 4 N.S.
Cholesterol (mg/dL) 1 5 8 . 6 ± 1 1 . 2 1 6 8 . 0 8 ± 6 . 4 N.S.
Triglyceride (mg/dL) 1 6 4 . 8 ± 2 7 1 2 7 . 2 ± 1 5 . 2 N.S.

LLE: lesion lipid extract. Results are presented as mean ± SEM.