scholarly journals Residuality of exogenous salicylic acid and effect on catalase activity and total antioxidant capacity in tomato leaves

2015 ◽  
Vol 10 (41) ◽  
pp. 3893-3900
Author(s):  
Guzman Tellez Enrique ◽  
Benavides Mendoza Adalberto ◽  
Flores Olivas Alberto ◽  
Cabrera De la Fuente Marcelino ◽  
Diaz Montenegro Daniel
Keyword(s):  
Salicylic Acid ◽  
Antioxidant Capacity ◽  
Catalase Activity ◽  
Total Antioxidant Capacity ◽  
Total Antioxidant ◽  
Exogenous Salicylic Acid

scholarly journals Total Antioxidant Capacity, Catalase Activity and Salivary Oxidative Parameters in Patients with Temporomandibular Disorders

2020 ◽  
Author(s):  
Neda Omidpanah ◽  
Saba Ebrahimi ◽  
Asad Vaisi Raygani ◽  
Hadi Mozafari ◽  
Mansour Rezaei
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Temporomandibular Disorders ◽  
Catalase Activity ◽  
Total Antioxidant Capacity ◽  
Control Group ◽  
Healthy Controls ◽  
Oxidative Stress Biomarkers ◽  
Reducing Ability ◽  
Total Antioxidant

Objectives: Temporomandibular disorders (TMD) are characterized by pain or discomfort in the temporomandibular joint, periauricular region, masticatory muscles, and neck on one or both sides. It may also be associated with joint sounds, restricted mandibular movements and mandibular deviation. Oxidative agents may have a deleterious role in the pathogenesis of joint diseases, and oxidative stress can lead to TMD. The aim of this study was to assess the oxidative stress biomarkers in the saliva of TMD patients and healthy controls. Materials and Methods: This case-control study was conducted on 30 patients with TMDs (5 males and 25 females) with a mean age of 30.7±13.2 years, and 30 healthy controls (5 males and 25 females) with a mean age of 29.16±11.2 years. Saliva samples were collected according to the standard protocol and the total antioxidant capacity of the saliva (non-enzymatic), catalase activity, and malondialdehyde (MDA) levels were measured using the ferric reducing ability of plasma, Aebi’s method, and high-performance liquid chromatography, respectively. Finally, The MDA levels were analyzed by the Mann-Whitney test. Other quantitative parameters were analyzed by independent t-test.  Results: TMD patients had significantly higher salivary levels of MDA compared to the control group (P=0.001). But there were no significant differences in catalase (P=0.49) and total antioxidant capacity (P=0.22) of TMD patients and healthy controls. Conclusion: It seems that oxidative stress may be involved in the pathogenesis of TMDs.

scholarly journals LIFE HABITS AND LIPID PEROXIDATION OF WOMEN OVER 40 YEARS OLD

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S148-S148
Author(s):  
Renata F Oliveira ◽  
Maria Mota ◽  
Jorge Soares ◽  
Zirlene Santos ◽  
Bianca Rosa ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Physical Activity ◽  
Lipid Peroxidation ◽  
Antioxidant Capacity ◽  
Catalase Activity ◽  
Total Antioxidant Capacity ◽  
Multiple Linear Regression Model ◽  
Activity Level ◽  
Leg Strength ◽  
Total Antioxidant

Abstract Oxidative stress is involved in degenerative processes, aging, and diseases. Lifestyle can be change oxidative stress. One of reactive oxygen species targets is polyunsaturated fatty acid, an important cellular membrane component. The aim of this study is to analyse the contribute of lifestyle in lipid peroxidation in over fourty years old women. Were included 60 women whith age ranged between 41 and 82 years old (53.3 ± 9.1 years). Lifestyle were explored doing a food frequency questionnaire, Perceptive Stress Scale (PSS) and International Physical Activity Questionnaire (IPAQ). The functional capacity was determinate by 6-min walking test (cardiorespiratory capacity) and Squat-jump (leg strength and power). Parameters of oxidative stress were determinate from plasma during fasting, lipid peroxidation was evaluated by TBARs, and antioxidant capacity was evaluated by catalase activity and ABTS. Spearman correlation and Multiple Linear Regression model, through Stepwise method, considering TBARs as dependent variable, and age, weight, body mass index, waist circumference, stress perception, physical activity level, total antioxidant capacity, catalase activity, cardiorespiratory capacity, leg strength and power, daily caloric intake, daily fruit, vegetables, coffee/tea, vitamin E and alcohol intake, as independent variable, was performed. Negative correlations were obtained between TBARs and cardiorespiratory capacity (r= -0.35; p=0.026) and between TBARS and ABTS (r= -0.33; p=0.038). Total antioxidant capacity was the model’s first variable (F= 5.50; p = 0.013), explaining 15.3% of TBARS, then cardiorespiratory capacity (F= 5.50; p = 0.047), explaining 10.5% of TBARs The results revealed total antioxidant capacity and cardiorespiratory capacity as predictors to lipid peroxidation damage.

Omega-3 and vitamin E co-supplementation can improve antioxidant markers in obese/overweight women with polycystic ovary syndrome

2020 ◽  
Vol 90 (5-6) ◽  
pp. 477-483 ◽  
Author(s):  
Fatemeh Sadeghi ◽  
Amirmansour Alavi-Naeini ◽  
Farahnaz Mardanian ◽  
Mohammad Reza Ghazvini ◽  
Behzad Mahaki
Keyword(s):  
Vitamin E ◽  
Polycystic Ovary Syndrome ◽  
Antioxidant Capacity ◽  
Catalase Activity ◽  
Total Antioxidant Capacity ◽  
Polycystic Ovary ◽  
Omega 3 ◽  
Ovary Syndrome ◽  
Overweight Women ◽  
Total Antioxidant

Abstract. Background: Polycystic ovary syndrome is one of the most important factors in female infertility. Oxidative stress is likely to contribute to increased insulin and androgen production in the ovaries, as well as probably impairing follicle production. Aims: This study aims to determine the complementary effects of omega-3 and vitamin E supplements on certain oxidative stress indices in obese and overweight women with polycystic ovary syndrome. Materials and Methods: This double-blind, randomized clinical trial was performed on polycystic ovary syndrome subjects with BMI > 25. Patients were randomly allocated into two groups to receive either 2 g of omega-3 plus 400 IU of vitamin E, or a placebo, for 8 weeks. At the beginning and the end of the study, total antioxidant capacity, glutathione levels, catalase activity, malondialdehyde concentrations, as well as dietary intake and physical activity were evaluated. Statistical analysis was performed using SPSS. Results: 32 patients in the intervention group and 30 patients in the placebo group completed the study. Co-supplementation of omega-3 and vitamin E significantly increased total antioxidant capacity (mg/dl) (1.15 ± 0.93 vs −0.6 ± 0.72; P < 0.001), catalase activity (IU/L) (1.19 ± 1.06 vs 0.12 ± 0.36; P < 0.001) and glutathione levels (μmol/L) (1.5 ± 1.06 vs 0.23 ± 1.43; P = 0.028). Additionally, a significant reduction of malondialdehyde levels (nmol/L) (−0.34 ± 0.32 vs 0.57 ± 2.20; P = 0.008) was observed, in comparison with placebo. Conclusion: Co-supplementation with omega-3 and vitamin E had beneficial effect on total antioxidant capacity, malondialdehyde concentrations, glutathione levels and catalase activity.

scholarly journals Red Cabbage (Brassica oleracea) Ameliorates Diabetic Nephropathy in Rats

2008 ◽  
Vol 5 (3) ◽  
pp. 281-287 ◽  
Author(s):  
Hazem A. H. Kataya ◽  
AlaaEldin A. Hamza
Keyword(s):  
Adverse Effect ◽  
Superoxide Dismutase ◽  
Body Weight ◽  
Antioxidant Capacity ◽  
Brassica Oleracea ◽  
Catalase Activity ◽  
Total Antioxidant Capacity ◽  
Superoxide Dismutase Activity ◽  
Red Cabbage ◽  
Total Antioxidant

The protective action against oxidative stress of red cabbage (Brassica oleracea) extract was investigated. Diabetes was induced in male Wistar rats using streptozotocin (60 mg/kg body weight). Throughout the experimental period (60 days), diabetic rats exhibited many symptoms including loss of body weight, hyperglycemia, polyuria, polydipsia, renal enlargement and renal dysfunction. Significant increase in malondialdehyde, a lipid peroxidation marker, was observed in diabetic kidney. This was accompanied by a significant increase in reduced glutathione and superoxide dismutase activity and a decrease in catalase activity and in the total antioxidant capacity of the kidneys. Daily oral ingestion (1 g/kg body weight) ofB. oleraceaextract for 60 days reversed the adverse effect of diabetes in rats.B. oleraceaextract lowered blood glucose levels and restored renal function and body weight loss. In addition,B. oleraceaextract attenuated the adverse effect of diabetes on malondialdehyde, glutathione and superoxide dismutase activity as well as catalase activity and total antioxidant capacity of diabetic kidneys. In conclusion, the antioxidant and antihyperglycemic properties ofB. oleraceaextract may offer a potential therapeutic source for the treatment of diabetes.

Trans-resveratrol supplement lowers lipid peroxidation responses of exercise in male Wistar rats

2020 ◽  
pp. 1-6 ◽  
Author(s):  
Masoud Nasiri ◽  
Saja Ahmadizad ◽  
Mehdi Hedayati ◽  
Tayebe Zarekar ◽  
Mehdi Seydyousefi ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Wistar Rats ◽  
Enzymatic Antioxidants ◽  
Acute Response ◽  
Total Antioxidant ◽  
Male Wistar Rats ◽  
Exercise Induced ◽  
And Control

Abstract. Physical exercise increases free radicals production; antioxidant supplementation may improve the muscle fiber’s ability to scavenge ROS and protect muscles against exercise-induced oxidative damage. This study was designed to examine the effects of all-trans resveratrol supplementation as an antioxidant to mediate anti-oxidation and lipid per-oxidation responses to exercise in male Wistar rats. Sixty-four male Wistar rats were randomly divided into four equal number (n = 16) including training + supplement (TS), training (T), supplement (S) and control (C) group. The rats in TS and S groups received a dose of 10 mg/kg resveratrol per day via gavage. The training groups ran on a rodent treadmill 5 times per week at the speed of 10 m/min for 10 min; the speed gradually increased to 30 m/min for 60 minutes at the end of 12th week. The acute phase of exercise protocol included a speed of 25 m/min set to an inclination of 10° to the exhaustion point. Superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT) activity, non-enzymatic antioxidants bilirubin, uric acid, lipid peroxidation levels (MDA) and the total antioxidant capacity (TAC) were measured after the exercise termination. The data were analyzed by using one-way ANOVA. The result showed that endurance training caused a significant increase in MDA level [4.5 ± 0.75 (C group) vs. 5.9 ± 0.41 nmol/l (T group)] whereas it decreased the total antioxidant capacity [8.5 ± 1.35 (C group) vs. 7.1 ± 0.55 mmol/l (T group)] (p = 0.001). In addition, GPx and CAT decreased but not significantly (p > 0.05). The training and t-resveratrol supplementation had no significant effect on the acute response of all variables except MDA [4.3 ± 1.4 (C group) vs. 4.0 ± 0.90 nmol/l (TS group)] (p = 0.001) and TAC [8.5 ± 0.90 (C group) vs. 6.6 ± 0.80 mmol/l (TS group)] (p = 0.004). It was concluded that resveratrol supplementation may prevent exercise-induced oxidative stress by preventing lipid peroxidation.

Summer Day/Night Gender Differences in Serum Total Antioxidant Capacity as a Methodological Pitfall in Human Antioxidant Research

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Armando L. Morera-Fumero ◽  
Pedro Abreu-Gonzalez ◽  
Lourdes Fernandez- Lopez ◽  
Estefanía Díaz-Mesa ◽  
Maria del Rosario Cejas-Mendez
Keyword(s):  
Gender Differences ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Total Antioxidant
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