Antioxidants offer protection to the cell membranes and prevent the oxidation process by neutralizing toxic oxygen
molecules and free radicals.
Exact cause of polyneuropathy is not known but has been attributed to immune mediated capillary damage, toxic oxygen
radicals, tumor necrosis factor, parasitic emboli obstructing the vasa nervorum, neurotoxin release, nutritional and metabolic disturbances (2).
High water temperatures can block photosynthetic reactions in the algal cells causing a build-up of toxic oxygen
compounds, which threaten the coral and can result in a loss of the zooxanthellae.
Antioxidants such as GSH and melatonin function to protect cells from toxic oxygen
Vitamin C is usually found in high concentrations in semen, where it is known to protect the DNA of sperm cells from toxic oxygen
Then the MRSA strains were mixed with human neutrophils (white blood cells), the body's first line of defense against bacterial invasion, which kill bacteria by producing hydrogen peroxide and other toxic oxygen
Although plants depend on the sun's energy to fuel photosynthesis, too much light causes them to make toxic oxygen
SCSs function by catalytically inactivating toxic oxygen
radicals and hydrogen peroxide, turning these chemicals into harmless oxygen and water.
According to the researchers, the toxic oxygen
molecules released into the cell causes the increasing 'gloopiness'.
1993) suggested that the initial modifications of cellular metabolism and calcium homeostasis may activate major pathways leading to a loss of membrane integrity by a) membrane phospholipid degradation, b) production of amphipathic lipids, c) damage of the cytoskeleton, and d) generation of toxic oxygen
species and free radicals.
Premature neonates have low levels of naturally occurring antioxidant enzymes such as superoxide dismutase, which converts toxic oxygen
free-radicals to less toxic hydrogen peroxide and water.
But these cells are probably the last place an unfriendly invader wants to be--once attached to the cell, the parasites are usually doomed, as a macrophage respiratory burst generates toxic oxygen
molecules to destroy the attacker.