Abstract Title:

Alpha lipoic acid supplementation improved antioxidant enzyme activities in hemodialysis patients.

Abstract Source:

Int J Vitam Nutr Res. 2019 Sep ;89(3-4):161-167. Epub 2019 Apr 16. PMID: 30987551

Abstract Author(s):

Reza Mahdavi, Tannaz Khabbazi, Javid Safa

Article Affiliation:

Reza Mahdavi


Cardiovascular disease (CVD) is the main cause of death in hemodialysis (HD) patients and oxidative stress is an important risk factor for CVD. Superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) are primary antioxidant enzymes in human cells acting against toxic reactive oxygen species (ROS) and their reduced activity may contribute to oxidative disorders in HD patients. Alpha lipoic acid (ALA) as a potent strong antioxidant may affect these enzymes.We examined the effects of ALA supplementation on antioxidant enzyme activities in HD patients.In this double-blinded, randomized clinical trial, 63 HD patients (43 males and 20 females; age range: 22-79 years) were assigned into the ALA group (n: 31), receiving a daily dose of ALA (600 mg), or a control group (n: 32), receiving placebo for 8 weeks. Body mass index (BMI), antioxidant enzymes, albumin (Alb) and hemoglobin (Hb) were determined before and after intervention.At baseline, the mean blood activities of SOD, GPx, and CAT in ALA group were 1032±366, 18.9±5.09 and 191±82.7 U/gHb which increased at the end of study to 1149±502, 19.1±7.19 and 208±86.6 U/gHb respectively. However, only the increase of SOD was statistically significant in comparison with placebo group (P = 0.04). The mean levels of Alb, Hb, weight and BMI were not significantly changed in study groups (P>0.05).ALA may be beneficial for HD patients by increasing the activity of antioxidant enzymes; however, further studies are needed to achieve precise results.

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