Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 48 for “"glutathione reductase"”.
-
Comparing glutathione peroxidase and glutathione reductase activity and their associations with cardiovascular measures in Africans and Caucasians : the SABPA study
… remodelling. The endogenous antioxidant enzymes glutathione peroxidase and glutathione reductase work synergistically to maintain intracellular redox balance. Both these enzymes have been indicated to have varying levels of activities with changes in blood pressure. Furthermore, GPx activity was …
-
Purification and characterization of glutathione reductase isozymes specific for the state of cold hardiness of red spruce (Picea rubens sarg.)
Isozymes of glutathione reductase (GR) have been purified from red spruce. A major isozyme is present throughout the year, while one isozyme is present only during summer in non-hardened needles. A third isozyme is present only during winter in hardened needles. The isozymes present in non-hardened …
-
Antioxidant responses of pea (Pisum sativum L.) protoplasts
… activity of the plastid antioxidant enzyme, glutathione reductase, increased after a three-hour exposure. Changes in the steady state level of glutathione reductase protein, as judged by immunoblots, did not correlate with the observed changes in enzyme activity. No change in the de novo …
-
Assessment of redox markers in cattle
… Se, along with peripheral blood mononuclear cell glutathione peroxidase, glutathione reductase, and reduced:oxidized glutathione were determined during summer grazing. Results suggested that endophyte consumption does not promote oxidative stress in cattle. Heat stress may alter glutathione redox …
-
Biochemical Studies Of Human Hyperuricaemia
… found for the enzymic activity of erythrocyte glutathione reductase (1 .6.4 .2.) of thee gout group compered w:ith the other two groups. The activities of these two enzymes do not appear to be linked. A significant increase in serum adenosine deaminase (3.5.4.4.) activities has been found in a …
-
Cardioprotective mechanisms targeting thiol redox homeostasis and mitochondrial bioenergetics
… thiol was demonstrated through preservation of glutathione, which is a key redox control point in cardiac bioenergetics. When the thiol pool becomes more oxidized following oxidative stress, loss of mitochondrial membrane potential and collapsed bioenergetics increase susceptibility to I/R …
-
CONTRIBUTIONS OF SIGMA-B AND PRFA TO STRESS RESPONSE AND VIRULENCE GENE EXPRESSION IN LISTERIA MONOCYTOGENES
… is lmo1433, which is predicted to encode glutathione reductase, an enzyme used by some bacteria to counteract oxidative stress. Characterizations of a strain bearing an in frame polar deletion of lmo1433 (delta-lmo1433), as well as a delta-sigB delta-lmo1433 strain, showed no difference in …
-
Evaluation of oxidative enzymes in leaf tissue from intact cotton plants exposed to different oxygen concentrations
… these conditions resulted in a 70% increase in glutathione reductase and a 25% increase in malate dehydrogenase. Other enzymes, superoxide dismutase, catalase, peroxidase, glyoxylate reductase, and acid phosphatase, appeared to be independent of the oxygen treatment. When humidity was carefully …
-
Drug Discovery in Redox Biology: From Natural Products to Structural Biology
… discovery with structural insight, thioredoxin glutathione reductase (SmTGR), a key enzyme in parasite redox homeostasis, was purified and crystallized. SDS-PAGE and UV–Visible spectroscopy confirmed protein purity and FAD incorporation. Crystals obtained via hanging-drop vapor diffusion …
-
Using algae as environmental impact indicators in urban freshwater ponds
… (superoxide dismutase, catalase, peroxidase, glutathione reductase and glutathione-stransferase) demonstrated that <i>C. glomerata</i> had increased SOD activities. Enzymes associated with the removal of toxic H<sub>2</sub>O<sub>2</sub> were detected in samples from specific locations and time …
-
An Analysis of the Response of Aspergillus fumigatus and Candida albicans to Caspofungin
… in the activity of selected enzymes (catalase, glutathione reductase and superoxide dismutase). The results presented in this thesis demonstrate that caspofungin is a potent antifungal agent but that A. fumigatus responds to the drug by increasing the synthesis of gliotoxin and by inducing an …
-
The effects of elevated mitochondrial hydrogen peroxide in S. cerevisiae : a physiological role for cytochrome c peroxidase
… of various antioxidant enzymes, and levels of glutathione. Mitochondria of x ccp1 yeast were found to undergo time-dependent inactivation and the x ccp1 strain was found to be more susceptible to H 2 O 2 induced stress, as compared to the isogenic wild-type strain, during both its exponential …
-
Progress toward a cloneable bismuth nanoparticle
… nanoparticle made from a metal reducing enzyme, Glutathione Reductase-Like Metalloid Reductase (GRLMR), which reduces selenite to form zero valance selenium. This chapter concludes by outlining the advantages of using bismuth as a contrasting marker. The second chapter discusses the background of …
-
The effects of cellular quiescence on the antioxidant defense enzymes of bovine embryonic lung fibroblasts: a survey
… such as, the superoxide dismutases, catalase, glutathione reductase, glutathione peroxidase, and glucose-6-phosphate dehydrogenase, was studied. We have also extensively monitored the levels of free radical in the cell by both direct and indirect methods. The results indicate that no …
-
Pesticide Mixtures Induce Immunotoxicity: Potentiation of Apoptosis and Oxidative Stress
… MP 37.8%. The activities of antioxidant enzymes, glutathione peroxidase (GSH-Px) and glutathione reductase (GR) were altered by these treatments. GR was significantly reduced for the pesticide mixtures only (control: 51.7; Mal: 48.2; Lind: 50; PBO: 52.3; ML: 40.5; MP: 42 Units/mg). GSH-Px activity …
-
The actions of gossypol on the physiologic antioxidant defense system
… several hepatic antioxidants including catalase, glutathione peroxidase, ascorbate and copper-zinc superoxide dismutase were decreased in gossypol treated rats. Catalase, glutathione peroxidase, ascorbate and glucose-6-phosphate dehydrogenase were decreased in the testis. In contrast, antioxidants …
-
Copper exposure of freshwater mussels (Anodonta anatina): Some physiological effects
… in various tissues, metallothionein induction, glutathione levels, activities of antioxidative enzymes and glutathione reductase, and on lipid peroxidation are examined. In the algal experiment, Parachlorella kessleri is grown at six 63Cu concentrations (0, 5.9, 11.7, 23.5, 47, and 94 µmol L-1) …
-
Synthesis and Characterisation of Silver(I)-Bioglues and Assessment of Biological Activity of AgNO3 Against Staphylococcus aureus
… dismutase, catalase and, to a lesser extent, glutathione reductase, but this activity decreases as the cells lose viability. AgNO3 also induces an increase in the amount of amino acid leakage from S. aureus cells, suggesting that Ag(I) ions affect membrane permeability. Proteomic analysis …
-
Effect of Water-deficit Stress on Cotton During Reproductive Development
… possibly due to higher water potential and glutathione reductase activity. Limited supply of water significantly affected carbohydrate metabolism of both leaf and pistil resulting in carbohydrate accumulation. Contrary to expectations, application of the ethylene inhibitor 1-MCP had no …
Page 1 of 3