scholarly journals Role of Glutathione Depletion and Reactive Oxygen Species Generation on Caspase-3 Activation: A Study With the Kinase Inhibitor Staurosporine

2020 ◽  
Vol 11 ◽  
Author(s):  
Aysenur Musaogullari ◽  
Alysia Mandato ◽  
Yuh-Cherng Chai
Keyword(s):  
Reactive Oxygen Species ◽  
Caspase 3 ◽  
Kinase Inhibitor ◽  
Reactive Oxygen Species Generation ◽  
Reactive Oxygen ◽  
Glutathione Depletion ◽  
Oxygen Species

Ascorbic acid improves mitochondrial function in liver of arsenic-treated rat

2010 ◽  
Vol 26 (5) ◽  
pp. 265-272 ◽  
Author(s):  
Sohini Singh ◽  
Suresh Vir Singh Rana
Keyword(s):  
Reactive Oxygen Species ◽  
Ascorbic Acid ◽  
Mitochondrial Function ◽  
Caspase 3 ◽  
Succinic Dehydrogenase ◽  
Reactive Oxygen ◽  
Ultrastructural Changes ◽  
Arsenic Toxicity ◽  
Oxygen Species

Arsenic is an ubiquitous and well-documented carcinogenic metalloid. The most common source of arsenic is drinking water. The mechanism of arsenic toxicity in a cell has historically been centered around its inhibitory effects on cellular respiration and mitochondrial injury. Ascorbic acid, a low molecular weight, water-soluble antioxidant, improves the reduced glutathione (GSH) status by recycling oxidized glutathione. Ascorbic acid can improve mitochondrial function by improving the thiol status; thereby preventing reactive oxygen species— mediated damage to liver as well as kidney. Ascorbic acid has been shown to protect membrane and other cellular compartments by regenerating vitamin E. Therefore, ascorbic acid seems to be a suitable protective factor against arsenic toxicity. Present reports describe the effect of ascorbic acid on oxidative phosphorylation, adenosine triphosphatase (ATPase), succinic dehydrogenase, caspase-3 and apoptosis in the liver of rats treated with arsenic trioxide (AsIII). Ultrastructural changes in the mitochondria have also been reported. We show that cotreatments with ascorbic acid and AsIII improve mitochondrial structure and function. We attribute these improvements mainly to antioxidative role of ascorbic acid. Apoptosis was restricted due to caspase-3 inhibition. Ascorbic acid could protect DNA from the attack of reactive oxygen species generated by AsIII. Consequently its events led to improved ADP:O ratio, normalized ATPase activity and restored the activity of succinic dehydrogenase. Overall, results support the protective role of ascorbic acid against As III-induced liver injury.

scholarly journals Role of Nox4 and Nox2 in Hyperoxia-Induced Reactive Oxygen Species Generation and Migration of Human Lung Endothelial Cells

2009 ◽  
Vol 11 (4) ◽  
pp. 747-764 ◽  
Author(s):  
Srikanth Pendyala ◽  
Irina A Gorshkova ◽  
Peter V. Usatyuk ◽  
Donghong He ◽  
Arjun Pennathur ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Endothelial Cells ◽  
Human Lung ◽  
Reactive Oxygen Species Generation ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Lung Endothelial Cells ◽  
And Migration

Role of metal-induced reactive oxygen species generation in lung responses caused by residual oil fly ash

2003 ◽  
Vol 28 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Anthony B. Lewis ◽  
Michael D. Taylor ◽  
Jenny R. Roberts ◽  
Stephen S. Leonard ◽  
Xianglin Shi ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Fly Ash ◽  
Reactive Oxygen Species Generation ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Residual Oil ◽  
Residual Oil Fly Ash ◽  
Oil Fly Ash
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