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SERUM ANTIBODIES TO OXIDIZED LOW-DENSITY LIPOPROTEIN IN PREGNANT WOMEN WITH PREECLAMPSIA AND CHRONIC HYPERTENSION: LACK OF CORRELATION WITH LIPID PEROXIDES

Objectives: To evaluate the circulating levels of antibodies to oxidized low-density lipoprotein (LDL) and their correlation with the lipid peroxide/vitamin E ratio in pregnant women with preeclampsia and chronic hypertension. Methods: Antibodies to oxidized LDL were measured by enzyme-linked immunoassay, lipid peroxides (malondialdehyde), and vitamin E were measured by high-pressure liquid chromatography. Patients were 25 healthy pregnant women, 20 previously nonhypertensive women diagnosed with preeclampsia, and 20 women with uncomplicated chronic hypertension. Results: Serum levels of antibodies to LDL in preeclamptic patients were similar to controls, whereas women with chronic hypertension showed a trend for increased mean levels. Lipid peroxides in serum were significantly increased and vitamin E levels were significantly decreased in preeclampsia with respect to nonhypertensive pregnancy, but no differences were observed for chronic hypertensive women. Conclusions: Our results suggest that preeclampsia is not accompanied by increased levels of antibodies to oxidized LDL. By contrast, and according to previous studies in nonpregnant patients, chronic hypertensive patients showed a trend for elevated levels.