Effect of chronic restraint stress and alpha-lipoic acid on lipid peroxidation and antioxidant enzyme activities in rat peripheral organs

2006 ◽  
Vol 54 (3) ◽  
pp. 247-252 ◽  
Author(s):  
M SAHIN ◽  
G SAGDIC ◽  
O ELMAS ◽  
D AKPINAR ◽  
N DERIN ◽  
...  
2019 ◽  
Vol 89 (3-4) ◽  
pp. 161-167 ◽  
Author(s):  
Reza Mahdavi ◽  
Tannaz khabbazi ◽  
Javid Safa

Abstract. Background: 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. Objective: We examined the effects of ALA supplementation on antioxidant enzyme activities in HD patients. Method: 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. Results: 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). Conclusion: ALA may be beneficial for HD patients by increasing the activity of antioxidant enzymes; however, further studies are needed to achieve precise results.


Author(s):  
Krzysztof Gwoździński ◽  
Marta Gonciarz ◽  
Ewa Kilańczyk ◽  
Aleksandra Kowalczyk ◽  
Anna Pieniążek ◽  
...  

Antioxidant enzyme activities and lipid peroxidation inIn the present work we have studied some of the indicators of oxidative damage of the digestive gland tissue of two populations of mussels


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