Effect of Lovastatin on lipid peroxidation and total antioxidant concentrations in hemodialysis patients.
BACKGROUND
Atherosclerosis is the main cause of mortality and morbidity in end stage renal diseases (ESRD), especially in hemodialysis (HD) patients. In addition the classic risk factors for atherosclerosis, non classical risk factors, such as high lipid peroxidation and low antioxidants, also, are culprit in the pathogenesis.


METHODS
We tested lipid peroxidation and total antioxidant levels in forty five stable hyperlipidemic HD males (age range 40-60 years) before, after 45 and 90 days of prescription of 20 mg/day Lovastatin for three months. Malondialdehyde (MDA), as prototype of lipid peroxidation, and total antioxidants (TA) were measured by flourimetric and spectrophotometric assays, respectively.


RESULTS
Serum triglyceride (Tg) (213.7 +/- 112.4 mg/dl vs. 153.4 +/- 54.8 mg/dl p = 0.003), serum cholesterol (C) (185.8 +/- 48.3 mg/dl vs. 149.3 +/- 37.8 mg/dl, p = 0.014), LDL-C (120.1 mg/dl +/- 48.9 vs. 84.8 +/- 43.7 mg/d, p = 0.001), VLDL-C (40.7 +/- 18.9 mg/dl vs. 30.7 +/- 10.9 mg/dl, p = 0.025), MDA (13.1 +/- 3.5 nmol/ml vs. 1.27 +/- 1 nmol/ml, p = 0.00), TA (0.98 +/- 0.17 mmol/l vs. 1.28 +/- 0.27 mmol/l, p = 0.001) and HDL (24.9+11.1 mg/dl vs. 31.4 +/- 7.7 mg/dl, p = 0.007) significantly were changed by 3 months of Lovastatin therapy. These changes for HDL, VLDL and Tg after the 3 months were more obvious than 45 days of Lovastatin therapy.


CONCLUSIONS
In HD patients serum lipids and their oxidations are increased. Both of them, quantitatively and qualitatively, are improved by using of Lovastatin. The later would be due to enhance of TA activity.
Argani
Hassan
H
Hemodialysis and Nephrology Division, Emam Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. hassanargani@hotmail.com
Ghorbani
Amir
A
Rashtchizade
Nadereh
N
Rahbaninobar
Mohammad
M