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Singlet oxygen in biological systems

A further role has been attributed to (Cu,Zn)-SOD the quenching of singlet oxygen. This raises, moreover, the question of the unlikely production of singlet oxygen in biological systems by non-photochemical means. [Pg.15]

N.I. Krinsky (1983). Singlet oxygen in biological systems. Trends Biochem. Sci., 2, 35-38. [Pg.95]

Cadenas, F. and Sies, H. (1984). Low-level chemiluminescence as an indicator of singlet molecular oxygen in biological systems. Methods in Enzymology 105 221 231. [Pg.147]

Oxygenation Reactions and Singlet Oxygen 4.3.1 Photosensitized Oxygenations in Biologic Systems... [Pg.87]

Consequently, the antioxidant activity of GA in biological systems is still an unresolved issue, and therefore it requires a more direct knowledge of the antioxidant capacity of GA that can be obtained by in vitro experiments against different types of oxidant species. The total antioxidant activity of a compound or substance is associated with several processes that include the scavenging of free radical species (eg. HO, ROO ), ability to quench reactive excited states (triplet excited states and/ or oxygen singlet molecular 1O2), and/or sequester of metal ions (Fe2+, Cu2+) to avoid the formation of HO by Fenton type reactions. In the following sections, we will discuss the in vitro antioxidant capacity of GA for some of these processes. [Pg.11]

Foote, C., Photosensitized oxidation and singlet oxygen conseqnences in biological systems, in Free Radicals in Biology, Pryor, W.A., Ed., Academic Press, New York, 1976. [Pg.68]

Girotti, AW and Korytowski, W, 2000. Cholesterol as a singlet oxygen detector in biological systems. Methods Enzymol 319, 85-100. [Pg.343]

Unfortunately, no more work has been done in this field. However, since amino compound degradation by singlet oxygen may play a role in biological systems, for example in photodynamic effects ( ), these reactions will probably obtain more attention in the future. [Pg.113]

There was also unequivocal proof that no superoxide at all was generated during this chemical reaction. Thus, this result supports earlier observations of a direct singlet oxygen generation in biological systems avoiding the pathway via superoxide. [Pg.56]


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See also in sourсe #XX -- [ Pg.106 ]




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Biological oxygen

In biological systems

Oxygen in biologic systems

Oxygen systems

Oxygenation singlet oxygen

Singlet oxygen

Singlet oxygenation

Singlet system

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