Changes in antioxidant system and oxidative stress under water stress in four cucumber cultivars

2017 ◽  
Vol 22 (1) ◽  
pp. 114-119
Author(s):  
Fariba Amini ◽  
Mehri Askary ◽  
Mahnaz Haghir ◽  
Hamid Reza Ghassemi
Keyword(s):  
Oxidative Stress ◽  
Water Stress ◽  
Antioxidant System ◽  
And Oxidative Stress

scholarly journals Water deficit-induced membrane injury and oxidative stress in two barley genotypes

2014 ◽  
Vol 71 (1) ◽  
pp. 17-21 ◽  
Author(s):  
Hanna Bandurska ◽  
Jolanta Floryszak-Wieczorek
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Water Stress ◽  
Water Deficit ◽  
Superoxide Radical ◽  
Membrane Injury ◽  
Induced Membrane ◽  
Radical Generation ◽  
And Oxidative Stress ◽  
Barley Genotypes

The purpose of this paper was to examine the effect of water deficit on membrane injuries, superoxide radical generation and lipid peroxidation in the leaves of two barley genotypes. Six-day-old seedlings of the cv. Aramir and line R567 were used in the experiments. According to our earlier work these genotypes significantly differ in the level of membrane injuries under water deficit conditions. Water stress was applied directly to leaves or to roots. The stress caused considerable membrane injuries in the leaves of all genotypes investigated.The percentage membrane injury was higher in the line R567 than in the cv. Aramir. Water stress imposed on leaves caused higher membrane injuries than water stress imposed on roots. The water stress treatment followed by an oxidative stress in the leaves. Line R567 having noticeably larger membrane injuries also exhibited a higher level of superoxide radical generation than the cv. Aramir. The level of lipid peroxidation increased in the both genotypes under the conditions of water stress imposed on leaves, but not on roots.

Essential nutrients and oxidative stress of durum wheat under water stress.

2014 ◽  
Vol 3 (1) ◽  
pp. 123-128
Author(s):  
Issaad Ghozlène ◽  
Djebar Mohammed-Réda ◽  
Berrebbah Houria ◽  
Charga Ali
Keyword(s):  
Oxidative Stress ◽  
Water Stress ◽  
Durum Wheat ◽  
Water Deficit ◽  
Triticum Durum ◽  
Metabolic Disturbances ◽  
Essential Nutrients ◽  
Plant Model ◽  
The Subject ◽  
And Oxidative Stress

Oxidative stress in plants is the subject of numerous reviews of the literature (Apel and Hirt, 2004; Noctor and Foyer, 2005a; Pitzschke et al, 2006;. Wormuth et al, 2007;. Sbartai et al, 2012.) And of several books (Inze and Montagu, 2001; Smirnoff et al, 2005.). This work focuses on studying the effects of water stress on the roots of a plant model: durum wheat (Triticum durum) variety GTA. After the germination, the plants were subjected to water stress during (03, 05, 07 and 09 days). Our results demonstrate abiochemical and metabolic disturbances of the seed subjected to water deficit. The lack of water has caused significant changes in the GTA durum variety.

scholarly journals Cytokines and Oxidative Stress Status Following a Handball Game in Elite Male Players

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Douglas Popp Marin ◽  
Rita de Cassia Macedo dos Santos ◽  
Anaysa Paola Bolin ◽  
Beatriz Alves Guerra ◽  
Elaine Hatanaka ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant System ◽  
Stress Responses ◽  
Oxidative Modification ◽  
Protein Carbonyls ◽  
Antioxidant Enzyme Activities ◽  
Oxidative Stress Biomarkers ◽  
Damage Indices ◽  
Plasma Antioxidant Capacity ◽  
And Oxidative Stress

Background. Handball is considered an intermittent sport that places an important stress on a player's aerobic and anaerobic metabolism. However, the oxidative stress responses following a handball game remain unknown. We investigated the responses of plasma and erythrocyte antioxidant system and oxidative stress biomarkers following a single handball game.Methods. Fourteen male elite Brazilian handball athletes were recruited in the present study. Blood samples were taken before, immediately, and 24 hours after the game.Results. After the game and during 24 hours of recovery, the concentration of all oxidative stress indices changed significantly in a way indicating increased oxidative stress in the blood (thiol groups and reduced glutathione decreased, whereas TBARS and plasma antioxidant capacity was increased) as well as in erythrocyte (increased levels of TBARS and protein carbonyls). Erythrocyte antioxidant enzyme activities were also significantly changed by handball. Muscle damage indices (creatine kinase and lactate dehydrogenase) increased significantly after exercise. In addition, IL-6 increased after the game, whereas TNF-αdecreased during recovery.Conclusion. This study demonstrates that a single handball game in elite athletes induces a marked state of oxidative stress evidenced by the oxidative modification in plasma and erythrocyte macromolecules, as well as by changes in the enzymatic and nonenzymatic antioxidant system.

scholarly journals NUPR1: A Critical Regulator of the Antioxidant System

Cancers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 3670
Author(s):  
Can Huang ◽  
Patricia Santofimia-Castaño ◽  
Juan Iovanna
Keyword(s):  
Oxidative Stress ◽  
Antioxidant System ◽  
Mitochondrial Function ◽  
Therapeutic Potential ◽  
Current Knowledge ◽  
Redox Homeostasis ◽  
Antioxidant Genes ◽  
Intrinsically Disordered ◽  
And Oxidative Stress

Nuclear protein 1 (NUPR1) is a small intrinsically disordered protein (IDP) activated in response to various types of cellular stress, including endoplasmic reticulum (ER) stress and oxidative stress. Reactive oxygen species (ROS) are mainly produced during mitochondrial oxidative metabolism, and directly impact redox homeostasis and oxidative stress. Ferroptosis is a ROS-dependent programmed cell death driven by an iron-mediated redox reaction. Substantial evidence supports a maintenance role of the stress-inducible protein NUPR1 on cancer cell metabolism that confers chemotherapeutic resistance by upregulating mitochondrial function-associated genes and various antioxidant genes in cancer cells. NUPR1, identified as an antagonist of ferroptosis, plays an important role in redox reactions. This review summarizes the current knowledge on the mechanism behind the observed impact of NUPR1 on mitochondrial function, energy metabolism, iron metabolism, and the antioxidant system. The therapeutic potential of genetic or pharmacological inhibition of NUPR1 in cancer is also discussed. Understanding the role of NUPR1 in the antioxidant system and the mechanisms behind its regulation of ferroptosis may promote the development of more efficacious strategies for cancer therapy.

scholarly journals Evaluation of biochemical parameters and oxidative stress in native and crossbred cattle naturally infected with Dermatophytosis

2020 ◽  
Vol 13 (2) ◽  
pp. 099-104
Author(s):  
Apaydin Yildirim Betul
Keyword(s):  
Oxidative Stress ◽  
Infectious Disease ◽  
Lipid Peroxidation ◽  
Antioxidant System ◽  
Biochemical Parameters ◽  
Laboratory Animals ◽  
Crossbred Cattle ◽  
Healthy Cattle ◽  
The World ◽  
And Oxidative Stress

Dermatophytosis is an endemic superficial zoonotic fungal infectious disease seen in many countries of the world affecting humans, cats, dogs, cattle, laboratory animals such as rabbits. T. verrucosum considered the main cause of ringworm in cattle. Cattle typically have circular, white-gray crust-shaped lesions on the skin on the neck and head. This study was carried out on a total of 40 native and crossbred cattle, 20 clinically healthy cattle and 20 clinical cases of dermatophytosis. The influence of dermatophytosis on lipid peroxidation and the antioxidant system was investigated. Serum MDA, TAS, TOS, GSH, GPx, SOD and CAT level were measured in groups. Cattle in group dermatophytosis had significantly higher MDA and TOS level and TAS, GSH levels, GPx, SOD and CAT activities were significantly lower (P < 0.001). These findings suggest a relationship between dermatophytosis, the oxidant-antioxidant system and lipid peroxidation.

scholarly journals Drought responses in six hazelnut (Corylus avellana L.) cultivars

2016 ◽  
Vol 73 (2) ◽  
pp. 259
Author(s):  
Ali Shahi-Gharahlar ◽  
Mohammad Reza Fatahi ◽  
Zabihollah Zamani ◽  
Mohamad Al Hassan ◽  
Monica Boscaiu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Water Stress ◽  
Biochemical Markers ◽  
Crop Yields ◽  
Corylus Avellana ◽  
Initial Attempt ◽  
Stress Treatment ◽  
Reliable Marker ◽  
Corylus Avellana L ◽  
And Oxidative Stress

Drought is one of the major causes of reduction of crop yields worldwide, a problem that will increase in the next decades due to climate change. We describe here an initial attempt to define biochemical markers associated to water stress in several hazelnut cultivars, by measuring the levels of common osmolytes and the generation of secondary oxidative stress, in plants subjected to water stress, and after recovery from the stress treatment. Proline appears to be a reliable marker in this species, as its accumulation in leaves correlates well with the degree of stress affecting the plants. Differences between cultivars in relative Pro accumulation and oxidative stress suggested that some cultivars are more tolerant than others and could be selected for cultivation in drought-affected areas

Modulation of the innate immune response, antioxidant system and oxidative stress during acute and chronic stress in pacu (Piaractus mesopotamicus)

2021 ◽  
Author(s):  
Camila de Fátima Pereira de Faria ◽  
Claudia Bueno dos Reis Martinez ◽  
Leonardo Susumu Takahashi ◽  
Mariana Maluli Marinho de Mello ◽  
Talísia Pereira Martins ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Immune Response ◽  
Chronic Stress ◽  
Innate Immune Response ◽  
Antioxidant System ◽  
Innate Immune ◽  
Piaractus Mesopotamicus ◽  
Acute And Chronic Stress ◽  
And Oxidative Stress
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