30 November 2010
Med Sci Monit 2010; 16(12): CR628-632 :: ID: 881301
Background: Chronic fatigue syndrome is a debilitating disease of unclear cause and pathogenesis. It affects mostly women from lower socioeconomic classes. There is mounting evidence that oxidative stress, specifically lipid peroxidation (LPO) contributes to the disease process. We investigated levels of LPO and its possible consequences for these patients.
Material/Methods: Forty women aged 15–45 years who fulfilled the 1994 Centers for Disease Control’s diagnostic criteria for chronic fatigue syndrome (CFS) with no comorbidities were recruited and were age matched to a control group of 40 healthy women. Levels of total cholesterol (TC), triglycerides (TG), LDL cholesterol (LDLc), HDL cholesterol (HDLc), and malondialdehyde (MDA) levels were measured.
Results: Although initial statistical analyses showed no differences between groups (P=.345), when subdivided according to the level of MDA, a difference was found in the subgroup of high-level MDA (P=.034). There was a negative correlation between HDLc and MDA levels (r=0.3; P=.046), a positive correlation between TG and MDA levels (r=0.4; P=.006), and lower levels of HDL cholesterol in the CFS group (P=.036).
Conclusions: High levels of MDA, positively correlated with TG and lower HDL levels, might be indicative of proatherogenic events in female CFS patients, a group not otherwise considered a risk for atherosclerosis.
Keywords: Lipid Peroxidation - physiology, Fatigue Syndrome, Chronic - physiopathology, Enzyme-Linked Immunosorbent Assay, Cholesterol - blood, Analysis of Variance, Adolescent, Malondialdehyde - blood, Triglycerides - blood
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