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Last Updated: 3 years ago

Possible Interaction: Hydrogen Peroxide and Ascorbate

Research Papers that Mention the Interaction

The anti-cancer effects of ascorbate are hypothesized to involve the autoxidation of ascorbate leading to increased steady-state levels of H2O2 ; however, the mechanism(s) for cancer cell-selective toxicity remain unknown.
Cancer cell  •  2017  |  View Paper
Ascorbate administration selectively diminished apheresis-enhanced H2O2 and inflammatory mediators such as tumor necrosis factor alpha (TNF-&agr;) and monocyte chemoattractant protein-1.
Arteriosclerosis, thrombosis, and vascular biology  •  2004  |  View Paper
Pharmacological doses of ascorbate selectively induce cell death in different types of cancer cells through the generation of H2O2.
Advanced biosystems  •  2019  |  View Paper
Ascorbate‐generated H2O2 damages DNA, activates PARP, depletes NAD+ and ATP.In the absence of PARP activation, cell death is mediated by ROS‐induced DNA damage.
Free radical biology & medicine  •  2017  |  View Paper
Cells that were exposed to hydrogen peroxide (H2O2) for 3 hours, exhibited increases in several histone methylation marks including H3K4me3 and decreases of histone acetylation marks including H3K9ac and H4K8ac; pre-incubation with ascorbate attenuated these changes.
Free radical biology & medicine  •  2015  |  View Paper
At these pharmacological levels, and in the presence of catalytic metal ions, ascorbate can induce oxidative stress through the generation of hydrogen peroxide (H2O2).
Current pharmaceutical biotechnology  •  2015  |  View Paper
Brief hydrogen peroxide treatment or incubation in an enriched oxygen atmosphere led to a marked further reduction of ISCU protein levels, which could be prevented by pretreatment with the antioxidant ascorbate.
The Journal of Biological Chemistry  •  2012  |  View Paper
Results: There was a time- and dose-dependent increase in measured H2O2 production with increased concentrations of ascorbate.
Clinical Cancer Research  •  2010  |  View Paper
It has been postulated that the presence of ascorbate in AqH can contribute to increased photoproduction of H2O2 mediated by the iris melanin.
Our data show that exogenous ascorbate significantly amplified the rate of H2O2 photoformation in all melanotic samples.
We postulate that also in vivo ascorbate increases the rate of iris melanin‐mediated photoformation of H2O2 and its steady state concentration in AqH.
Photochemistry and photobiology  •  2008  |  View Paper
On the other hand, cells such as HL-60, which showed growth inhibition at higher concentrations of ascorbate in medium among observed cells, were damaged by the exposure to higher concentrations of hydrogen peroxide (H2O2).
Journal of nutritional science and vitaminology  •  1996  |  View Paper
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