Oxidative stress results when the balance between the production of reactive oxygen species (ROS) overrides the antioxidant capability of the target cell; oxidative damage from the interaction of reactive oxygen with critical cellular macromolecules may occur. ROS may interact with and modify cellular protein, lipid, and DNA, which results in altered target cell function. The accumulation of ox...

Background: Acetaminophen (APAP) overdose causes renal and hepatic injury. It is ‎also believed that oxidative stress has a pivotal role in APAP-induced renal injury. ‎Therefore, protective effects of different antioxidants have been examined in APAP-‎induced renal and hepatic toxicity models. Stevia rebadiana is a plant with a high ‎degree of natural antioxidant activity in its leaf extract. T...

Calcium disequilibrium is extensively involved in oxidative stress-induced neuronal injury. Although Homer1a is known to regulate several neuronal calcium pathways, its effects on, or its exact relationship with, oxidative stress-induced neuronal injury has not yet been fully elucidated. We found that Homer1a protected HT-22 cells from glutamate-induced oxidative stress injury by inhibiting fin...

We investigated whether nerve cell damage by unconjugated bilirubin (UCB) is mediated by oxidative stress and ascertained the neuronal and astroglial susceptibility to injury. Several oxidative stress biomarkers and cell death were determined following incubation of neurons and astrocytes isolated from rat cortical cerebrum with UCB (0.01-1.0 microM). We show that UCB induces a dose-dependent i...

objective(s):fuzheng huayu recipe (fzhy) exerts significant protective effects against liver fibrosis by strengthening the body’s resistance and removing blood stasis. however, the molecular mechanisms through which fzhy affects liver fibrosis are still unclear. in this study, we examined the expression levels of factors involved in the inhibitor κb kinase-β (ikk-β)/nuclear factor-κb (nf-κb) an...

Objective(s): Ulcerative colitis (UC) is a kind of complex immune disease, and a major cause of destruction of intestinal barrier and oxidative stress in this field. In this paper, glutamine (Gln) was believed to offer protection against oxidative stress injury in colitis mice.Materials and Methods: Thirty mice were randomly assigned int...

to investigate the cardioprotective potential of the aqueous extract of allium cepa linn. bulb in isoprenaline-induced myocardial injury in wistar albino rats. in vitro total phenolic, total flavonoid content and 2, 2’-diphenyl-1-picrylhydrazyl hydrate radical scavenging activity was measured. isoprenaline-induced myocardial injury model was used to evaluate in vivo effect of aqueous extract of...

PURPOSE Oxidative injury is involved in retinal and macular degeneration. We aim to assess if retinal degeneration associated with genetic defect modulates the retinal threshold for encountering additional oxidative challenges. METHODS Retinal oxidative injury was induced in degenerating retinas (rd10) and in control mice (WT) by intravitreal injections of paraquat (PQ). Retinal function and ...

Prolonged mechanical ventilation (MV) results in oxidative damage in the diaphragm; however, it is unclear whether this MV-induced oxidative injury occurs rapidly or develops slowly over time. Furthermore, it is unknown whether both soluble (cytosolic) and insoluble (myofibrillar) proteins are equally susceptible to oxidation during MV. These experiments tested two hypotheses: 1). MV-induced ox...