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REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
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Revista de Chimie (Rev. Chim.), Year 2004, Volume 55, Issue 1,





The Evaluation of Oxidative Stress in Biosystems. II. The Effects of Ozone, UV Irradiation and Peroxidation
Nicoleta Iftimie, Maria Giurginca, Aurelia Meghea

Abstract:

The human cells, acting as cell factory, are involved in fundamental processes providing the vital energy of the body. Nevertheless, in some conditions such processes are strongly hindered by the effects of the oxidative stress on physical-chemical phenomena accompanying a normal metabolism. Appearance, in these conditions, of some peroxides or ketones with high toxicity for vital organs can cause serious diseases. Moreover, the atmospheric pollution also contributes to the oxidative stress by means of the increasing content in nitrogen oxides, free radicals, high level of UV radiation, as well as the impact of tropospheric ozone on oxidation/autooxidation processes of organic matter. This paper aims to simulate in vitro the effects caused by peroxidation, UV radiation and ozone on some essential aminoacids and fatty acids; the kinetic study was monitored by the evolution of electronic spectra and the chemiluminescence. Keywords: oxidative stress, aminoacids, fatty acids, UV spectra, chemiluminescence

Issue: 2004, Volume 55, Issue 1
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