INTRODUCTION: Physical activity or exercise is a proven deterrent of cardiovascular (CV) diseases. PURPOSE: In this study, we examined the relationships between baseline values of parameters related to physical activity and known markers of CV disease, including markers of oxidative stress. METHODS: A total of 455 healthy men and women between the ages of 18 and 50 were recruited to participate in the study. Levels of lipids/lipoproteins and markers of oxidative stress and inflammation were measured along with the VO(2) and duration time spent on treadmill. RESULTS: Women, in general, had a significantly (P<0.0001) higher plasma high density lipoprotein (1.51+/-0.30 mmol/l), decreased (P<0.0001) low density lipoprotein (LDL) (2.75+/-0.66 mmol/l), and decreased (P<0.0001) triglycerides levels (2.09+/-0.85 mmol/l), compared with males (1.21+/-0.23 mmol/l, 2.92+/-0.81 mmol/l, and 3.02+/-1.34 mmol/l, respectively). There was a direct correlation between the levels of plasma LDL and the levels oxidized LDL levels (P<0.0001) in both men and women. Despite a better antiatherogenic lipid profile, the levels of C-reactive protein in women were significantly (P<0.0001) elevated (3.78+/-3.66 ng/ml) as compared with those in men (1.82+/-2.37 ng/ml). CONCLUSION: These results suggest intrinsic sex differences between men and women in relation to atherogenic risk. (c) 2010 Wiley-Liss, Inc.
INTRODUCTION: Physical activity or exercise is a proven deterrent of cardiovascular (CV) diseases. PURPOSE: In this study, we examined the relationships between baseline values of parameters related to physical activity and known markers of CV disease, including markers of oxidative stress. METHODS: A total of 455 healthy men and women between the ages of 18 and 50 were recruited to participate in the study. Levels of lipids/lipoproteins and markers of oxidative stress and inflammation were measured along with the VO(2) and duration time spent on treadmill. RESULTS:Women, in general, had a significantly (P<0.0001) higher plasma high density lipoprotein (1.51+/-0.30 mmol/l), decreased (P<0.0001) low density lipoprotein (LDL) (2.75+/-0.66 mmol/l), and decreased (P<0.0001) triglycerides levels (2.09+/-0.85 mmol/l), compared with males (1.21+/-0.23 mmol/l, 2.92+/-0.81 mmol/l, and 3.02+/-1.34 mmol/l, respectively). There was a direct correlation between the levels of plasma LDL and the levels oxidized LDL levels (P<0.0001) in both men and women. Despite a better antiatherogenic lipid profile, the levels of C-reactive protein in women were significantly (P<0.0001) elevated (3.78+/-3.66 ng/ml) as compared with those in men (1.82+/-2.37 ng/ml). CONCLUSION: These results suggest intrinsic sex differences between men and women in relation to atherogenic risk. (c) 2010 Wiley-Liss, Inc.
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