Serum paraoxonase 1 (PON1) activity and the oxidation of lipoproteins were investigated in 35 women with pre-eclampsia and in 35 healthy control women with normal pregnancies. Blood pressure, body mass index (BMI), serum levels of total cholesterol, triglycerides, high-density lipoprotein (HDL), low-density lipoprotein (LDL), apolipoprotein A1 (ApoA1), apolipoprotein B (ApoB) and lipoprotein (a) (Lp[a]), and PON1 activity were assessed. There were no significant between-group differences in subject age, gestational age at diagnosis of pre-eclampsia, BMI, serum total cholesterol, triglycerides, LDL and ApoB levels. Mean systolic and diastolic blood pressures and serum Lp(a) were significantly higher in subjects with pre-eclampsia than in controls. Mean serum HDL, ApoA1 and PON1 activity were significantly lower in subjects with pre-eclampsia compared with controls. In conclusion, lipids and oxidized lipoproteins may play important roles in the pathogenesis of pre-eclampsia.
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