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Related to Oxygen radical: Oxygen radical absorbance capacity
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It also stimulates production of superoxide anions and reactive oxygen radicals (9) and increases the consumption of BH4, and inhibits NO production.
Phagocytosis, adhesion molecules CD18 and CD11b for leukocyte adhesion defect I or CD15s for leukocyte adhesion defect II, and production of oxygen radicals upon stimulation for CGD can be tested by flow cytometric determinations.
Using their internal antioxidants, cells can deal with normal levels of oxygen radical formation.
It was found to have exceptional activity against superoxide in the superoxide scavenging (SOD) assay, the highest of any food reported to date against the peroxyl radical as measured by the oxygen radical absorbance capacity assay with fluorescein as the fluorescent probe (ORACFL), and mild activity against both the peroxynitrite and hydroxyl radical by the peroxynitrite averting capacity (NORAC) and hydroxyl radical averting capacity (HORAC) assays, respectively.
were analyzed for total anthocyanins (ACY), total phenolics (TPH), and antioxidant capacities as determined by oxygen radical absorbing capacity (ORAC) and ferric reducing antioxidant power (FRAP).
They also determined total antioxidant capacity using the ferric reducing ability of plasma (FRAP) and oxygen radical absorbance capacity (ORAC) techniques.
Acrolein induces lipid peroxidation, possibly via metabolism to glutathionylpropionaldehyde, which stimulates oxygen radical formation (26).
Several factors influence the susceptibility to oxidative stress by affecting the antioxidant status or free oxygen radical generation.
The antioxidant potential of the extracts was determined using the oxygen radical absorbance capacity (ORAC) assay, which measures the antioxidant capacities of different foods.
ORAC, which stands for Oxygen Radical Absorbance Capacity, has become the international testing standard for antioxidant capacity, particularly for natural products such as botanical-based ingredients and consumer food products.