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The association between pre-hypertension status and oxidative stress markers related to atherosclerotic disease: The ATTICA study

      Abstract

      Background

      We sought to evaluate the association between pre-hypertension status and oxidative stress markers (total antioxidant capacity (TAC) and oxidized low density lipoprotein (LDL)), in a random sample of cardiovascular disease-free adults.

      Methods

      The ATTICA study is a cross-sectional population-based survey that conducted in Attica region during 2001–2002. Based on a multistage and stratified random sampling, 1514 men and 1528 women (18–89 years old) were enrolled. The survey included a detailed interview; blood samples collected after 12 h of fasting and, among other clinical measurements, status of blood pressure levels was evaluated.

      Results

      Six hundred and fifty-three men (43%) and 535 women (35%) were defined as pre-hypertensives. Both systolic and diastolic blood pressures were inversely correlated with TAC (p < 0.001) and positively correlated to oxidized LDL (p < 0.001). Particularly, compared to normotensive subjects, pre-hypertensives had 7% lower TAC levels (p < 0.001) and 15% higher oxidized LDL levels (p < 0.05), after correcting for multiple comparisons and adjusting for age, body mass index, blood lipids, glucose, food groups consumed and other potential confounders.

      Conclusions

      Studying a large sample of cardiovascular disease-free adults, we revealed an association of pre-hypertension with oxidative stress markers linking to atherosclerotic process.

      Keywords

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