Melatonin and 1‐Methylcyclopropene treatments on delay senescence of apricots during postharvest cold storage by enhancing antioxidant system activity

2021 ◽  
Author(s):  
Shuangfeng Guo ◽  
Tingting Li ◽  
Caie Wu ◽  
Gongjian Fan ◽  
Hanbo Wang ◽  
...  
Keyword(s):  
Antioxidant System ◽  
Cold Storage ◽  
System Activity

Arginine treatment attenuates chilling injury of pomegranate fruit during cold storage by enhancing antioxidant system activity

2018 ◽  
Vol 137 ◽  
pp. 31-37 ◽  
Author(s):  
Mesbah Babalar ◽  
Farhad Pirzad ◽  
Mohammad Ali Askari Sarcheshmeh ◽  
Alireza Talaei ◽  
Hossein Lessani
Keyword(s):  
Antioxidant System ◽  
Cold Storage ◽  
Chilling Injury ◽  
System Activity ◽  
Pomegranate Fruit

Lipid Peroxidation and Antioxidant System Activity Changes of Rat Blood and Cardiac Muscle Cells Under Chronic Stress

2013 ◽  
Vol 1 (1) ◽  
pp. 16-21
Author(s):  
Natalia Dachanidze ◽  
George Burjanadze ◽  
Zurab Kuchukashvili ◽  
Ketevan Menabde ◽  
Nana Koshoridze
Keyword(s):  
Lipid Peroxidation ◽  
Cardiac Muscle ◽  
Chronic Stress ◽  
Antioxidant System ◽  
Muscle Cells ◽  
Cardiac Muscle Cells ◽  
Rat Blood ◽  
System Activity

scholarly journals Carious Lesion Severity Induces Higher Antioxidant System Activity and Consequently Reduces Oxidative Damage in Children’s Saliva

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Heitor Ceolin Araujo ◽  
Ana Cláudia Melo Stevanato Nakamune ◽  
Wilson Galhego Garcia ◽  
Juliano Pelim Pessan ◽  
Cristina Antoniali
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Oxidative Damage ◽  
Antioxidant System ◽  
Oxidative Stress Biomarkers ◽  
System Activity ◽  
Enzymatic Antioxidant ◽  
Stress Biomarkers ◽  
Salivary Biomarkers ◽  
Carious Lesions

Oxidative stress biomarkers can be found at detectable concentrations in saliva. These salivary biomarkers reflect specific oxidation pathways associated with caries and periodontitis. Our study evaluated the influence of dental caries severity (assessed using the ICCMS™ criteria) on the levels of oxidative stress biomarkers in saliva from children. Unstimulated saliva samples were collected from patients (from one to three years old) in a day care center in Birigui, SP, Brazil, two hours after fasting. Children were divided into four groups (n=30/group), according to caries severity: caries free (group A), early carious lesions (group B), moderate carious lesions (group C), and advanced carious lesions (group D). The following salivary biomarkers were determined: total proteins (TP), measured by the Lowry method; oxidative damage, measured by the TBARS method; total antioxidant capacity (TAC); superoxide dismutase (SOD) enzymatic antioxidant activity; and uric acid (UA) non-enzymatic antioxidant activity. Data were analyzed by ANOVA, followed by the Student-Newman-Keuls test, Pearson and Spearman correlation coefficients, and multivariable linear regression (p<0.05). TP, TAC, SOD enzymatic antioxidant activity, and UA non-enzymatic antioxidant activity increased with caries severity, consequently reducing salivary oxidative damage. It was concluded that higher caries severity increases salivary antioxidant system activity, with consequent reduction in salivary oxidative damage.

scholarly journals THE INFLUENCE OF ALLOGENIC HYDROXYAPATITE ON KATALASE ACTIVITY, DIEN CONJUGATS AND MALONE DIALDEHYDE IN RATS

2017 ◽  
Vol 18 (9) ◽  
pp. 217-226
Author(s):  
E.V. Pisareva ◽  
M.Yu. Vlasov ◽  
E.V. Orlova
Keyword(s):  
Antioxidant System ◽  
System Activity

The antioxidant system activity in liver and muscle of rat after bilateral ovaryectomy and allogenic hydroxyapatite injections was investigated. The decrease of antioxidant system activity in rats with removed ovaries was found. Injections of allogenic hydroxyapatite leads to normalization of antioxidant system activity.

scholarly journals Effects of Melatonin-Aided Therapy on the Glutathione Antioxidant System Activity and Liver Protection

2015 ◽  
Vol 29 (10) ◽  
pp. 449-457 ◽  
Author(s):  
Serguey S. Popov ◽  
Konstantin K. Shulgin ◽  
Tatyana N. Popova ◽  
Aleksander N. Pashkov ◽  
Aleksander A. Agarkov ◽  
...  
Keyword(s):  
Antioxidant System ◽  
Glutathione Antioxidant System ◽  
System Activity ◽  
Liver Protection

LIPID PEROXIDATION OF THE LIVER IN THE CONDITIONS OF HEAT EXPOSURE AND INTRODUCTION OF PHYTOADAPTOGENS

2016 ◽  
Vol 1 (62) ◽  
pp. 76-80
Author(s):  
Елена Юртаева ◽  
Elena Yurtaeva ◽  
Раиса Анохина ◽  
Raisa Anokhina ◽  
Наталья Симонова ◽  
...  
Keyword(s):  
Antioxidant System ◽  
Heat Exposure ◽  
Malonic Dialdehyde ◽  
The Body ◽  
Control Group ◽  
Peroxidation Of Lipids ◽  
Lipid Hydroperoxides ◽  
Experimental Conditions ◽  
Diene Conjugates ◽  
System Activity

Modern environmental conditions dramatically increased the level of radical forming processes in the body. Heat exposure stimulates the generation of reactive oxygen species inducing peroxidation of lipids as a result of the development of hypoxia. In experimental conditions the possibility to correct free radical lipid oxidation of rats’ organism membranes was studied with the oral introduction of the phytoadaptogens that contain the complex of natural antioxidants. The animals were divided into 5 groups and each of them had 30 rats: intact animals (1) which were held in standard conditions of vivarium; the control group (2) in which rats were exposed to heat during forty-five minutes daily; the experimental groups (3, 4, 5) in which before the effects of heat animals had a daily oral intake of the extracts of Eleutherococcus, Rhodiola, liquorice in a dose of 1 ml/kg. It was found out that in the liver tissue of experimental animals a daily heat exposure during forty-five minutes contributes to the increase of lipid hydroperoxides level (by 34-41%), of diene conjugate (by 45-50%), and of malonic dialdehyde (by 62-74%) against the decrease of antioxidant system activity in the liver of intact animals. The introduction of phytoadaptogens to rats in the conditions of heat exposure contributes to the reliable decrease in the liver of lipid hydroperoxides by 22-28%, of diene conjugates by 22-32%, and of malonic dialdehyde by 30-37% in comparison with the rats of the control group. While analyzing the effect of the phytoadaptogens on the activity of the components of antioxidant system it was shown that the level of ceruloplasmin in the liver of animals was reliably higher by 68-82%, of vitamin E by 42-65% in comparison with the same parameters of the rats of the control group. So, the application of phytoadaptogens in the conditions of long heat exposure of the organism of animals under experiment leads to the stabilization of the processes of peroxidation against the increase of antioxidant system activity.

Antioxidant system response of different wheat cultivars under drought: field and in vitro studies

2001 ◽  
Vol 28 (11) ◽  
pp. 1095 ◽  
Author(s):  
Hernán R. Lascano ◽  
Gerardo E. Antonicelli ◽  
Celina M. Luna ◽  
Mariana N. Melchiorre ◽  
Leonardo D. Gómez ◽  
...  
Keyword(s):  
Water Stress ◽  
Drought Tolerance ◽  
Oxidative Damage ◽  
Stress Tolerance ◽  
Antioxidant System ◽  
System Response ◽  
Wheat Cultivars ◽  
System Activity ◽  
Water Stress Tolerance

The participation of the antioxidant system in the drought tolerance of wheat cultivars (Triticum aestivum L.) was studied under field and in vitro conditions. Under field conditions, drought tolerance was evaluated by the capacity to maintain the grain yield under drought, which was higher in cvv. Elite and La Paz than in the sensitive cvv. Oasis and Cruz Alta. Tolerant cultivars showed lower relative water content (RWC) and lower above-ground vegetative biomass than sensitive cultivars. Field assays did not show a clear correlation between water-stress tolerance and antioxidant system behaviour. However, when leaves of cvv. with contrasting drought tolerance were subjected to osmotic stress in vitro, clear differences in the antioxidant system activity and oxidative damage between cvv. were observed. In the tolerant cultivar Elite, it was possible to observe an increase in ascorbate peroxidase (APX), superoxide dismutase (SOD) and glutathione reductase (GR) activities, a higher glutathione (GSH) and ascorbate content and less oxidative damage than in the sensitive cultivar Oasis, which showed no changes or only slight decreases in the enzyme activities. These results indicate that water stress tolerance is in part associated with the antioxidant system activity, and suggest that the behaviour of the antioxidant systemin vitro assays can be used as an early selection tool.

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