Total Antioxidant Status and Antioxidant Enzyme Activity during Maximal Exercise in Elite College Rowers

2002 ◽  
Vol 18 ◽  
pp. 1295-1303
Author(s):  
Man Gi Lee
2020 ◽  
Vol 45 (4) ◽  
pp. 415-421
Author(s):  
Gamze Yücel Işıldar ◽  
A. Çağlan Günal ◽  
Duygu Şahin ◽  
Burcu Kocak Memmi ◽  
Aylin Sepici Dinçel

AbstractObjectiveDeltamethrin, synthetic pyrethroid, is a suspected endocrine disruptor contaminating ecosystems as toxic pollutant via agricultural activities and vector controls. The objective of the study is to determine the possible effects on human by evaluating antioxidant enzyme levels and total antioxidant status (TAS) of invertebrate model organism crayfish exposure to sublethal deltamethrin.Materials and methodsCrayfish were exposed to 0.05 μg/L deltamethrin for 48 h and 7 days. Hemolymph samples were taken for TAS and total haemocyte counts (THCs). Gill, hepatopancreas and muscle tissues were examined for superoxide dismutase (SOD), glutathion peroxidase (GPx) and catalase (CAT) enzyme activities.ResultsTHCs were decreased (p < 0.05) and hemolymph TAS levels were increased according to control groups. Gill SOD, CAT and GPx enzyme activities were significantly rised. Hepatopancreas SOD activities unchanged. Hepatopancreas CAT activities were increased significantly after 48 h (p < 0.05), but returned back to controls after 7 days. Hepatopancreas GPx and muscle SOD activities were rised (p < 0.05), while muscle CAT and GPx values did not affect from deltametrin.ConclusionDeterioration of ecosystems are directly affect the humans. The toxic effects of deltamethrin for different stages of organisms on the food web will provide basic data to understand and estimate the effects on the human beings.


2021 ◽  
Vol 4 (2) ◽  
pp. 56-61
Author(s):  
Saban Kordali ◽  
◽  
Ayse Usanmaz Bozhûyûk ◽  
Adem Gunes ◽  
Erman Beyzi ◽  
...  

The biochemical contents of plants may vary depending on soil and climatic conditions. Under unsuitable conditions, the resistance mechanismof plants is determined by the biochemical properties of the plants. For this reason, it is of great importance to determine thebiochemical contents of some plants that are naturally grown and generally used as dye plants. For this purpose, Salix albaL., Verbascum thapsusL., Urtica dioicaL., Digitalis lanataEhrh, Galium aparineL., Lythrum salicariaL., Hypericum perforatumL., Hypericum scabrumL., Quercus roburL. subsp. robur, Glycyrrhiza glabraL. plants were collected. Antioxidant enzyme activity, hormone, organic acid, total phenolic substance and some other biochemical analyzes were made in these plant samples. As a result of the study, depending on the plant varieties, total antioxidant, total phenolic content and organic acid levels showed significant differences. According to the results of this study, Verbascum thapsusL. plant had high antioxidant enzyme activity, while Digitalis lanataEhrh. plant was found to be higher in terms of hormone and total organic acid content. The highest amount of carotenoid, abscisic acid and hydrogen peroxide were determined in Urtica dioica L. plant. Different results were obtained in other plant varieties, and it was observed that a different biochemical content was more effective in each plant. For this reason, it has been determined that the biochemical contents of these plants, which have different uses. The usage area of this plant should be created after the main active ingredient is determined.


2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
C. Berzosa ◽  
I. Cebrián ◽  
L. Fuentes-Broto ◽  
E. Gómez-Trullén ◽  
E. Piedrafita ◽  
...  

Antioxidant defences are essential for cellular redox regulation. Since free-radical production may be enhanced by physical activity, herein, we evaluated the effect of acute exercise on total antioxidant status (TAS) and the plasma activities of catalase, glutathione reductase, glutathione peroxidase, and superoxide dismutase and its possible relation to oxidative stress resulting from exercise. Healthy untrained male subjects () performed three cycloergometric tests, including maximal and submaximal episodes. Venous blood samples were collected before and immediately after each different exercise. TAS and enzyme activities were assessed by spectrophotometry. An increase of the antioxidant enzyme activities in plasma was detected after both maximal and submaximal exercise periods. Moreover, under our experimental conditions, exercise also led to an augmentation of TAS levels. These findings are consistent with the idea that acute exercise may play a beneficial role because of its ability to increase antioxidant defense mechanisms through a redox sensitive pathway.


Author(s):  
Hasan Haci Yeter ◽  
Berfu Korucu ◽  
Elif Burcu Bali ◽  
Ulver Derici

Abstract. Background: The pathophysiological basis of chronic kidney disease and its complications, including cardiovascular disease, are associated with chronic inflammation and oxidative stress. We investigated the effects of active vitamin D (calcitriol) and synthetic vitamin D analog (paricalcitol) on oxidative stress in hemodialysis patients. Methods: This cross-sectional study was composed of 83 patients with a minimum hemodialysis vintage of one year. Patients with a history of any infection, malignancy, and chronic inflammatory disease were excluded. Oxidative markers (total oxidant and antioxidant status) and inflammation markers (C-reactive protein and interleukin-6) were analyzed. Results: A total of 47% (39/83) patients were using active or analog vitamin D. Total antioxidant status was significantly higher in patients with using active or analog vitamin D than those who did not use (p = 0.006). Whereas, total oxidant status and oxidative stress index were significantly higher in patients with not using vitamin D when compared with the patients who were using vitamin D preparation (p = 0.005 and p = 0.004, respectively). On the other hand, total antioxidant status, total oxidant status, and oxidative stress index were similar between patients who used active vitamin D or vitamin D analog (p = 0.6; p = 0.4 and p = 0.7, respectively). Conclusion: The use of active or selective vitamin D analog in these patients decreases total oxidant status and increases total antioxidant status. Also, paricalcitol is as effective as calcitriol in decreasing total oxidant status and increasing total antioxidant status in patients with chronic kidney disease.


Author(s):  
N. N. Malyutina ◽  
A. F. Bolotova ◽  
R. B. Eremeev ◽  
A. Zh. Gilmanov ◽  
D. Yu. Sosnin

Introduction. The overwhelming number of publications contains only data on the content of individual antioxidants, but not on the overall antioxidant activity of the blood in patients with vibration disease.The aim of the study was to determine the total antioxidant activity of blood serum in patients with vibration disease.Materials and methods. Th e main group consisted of 30 people diagnosed with “Vibration disease” of 1 degree (n=21) and 2 degrees (n=9). Th e control group consisted of 30 clinically healthy men, comparable in age with the main group (p=0.66). Th e total activity of antioxidant systems of blood plasma was evaluated photometrically using the test system “Total antioxidant status-Novo” (“Vector-best”, Russia).Results. The indicator of the total antioxidant status (TAS) was 1,038±0.232 mmol/l in the examined main group, against 1,456±0.225 mmol/l in the examined control group (p<0.000001). Th e coefficient of variation (CV) in patients with vibration disease was 22.35%, 1.45 times higher than in the control group (15.45%). In the main group there was a positive correlation between age and TAS (R=0.525), in the control group there was no such relationship (R=0.095). Th e degree of decrease depended on the severity of vibration disease.Conclusions. 1. The development of vibration disease is accompanied by a decrease in the antioxidant status of blood serum. 2. Th e degree of decrease in the antioxidant status of blood serum correlates with the severity of vibration disease. 3. Reduction of TAS can serve as a pathogenetic justification of the need to include drugs and/or biologically active additives with antioxidant activity in therapy


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