Antioxidantsmodification of ionizing irradiation and additional stress effects upon rats higher nervousactivity
E.V. Tukalenko, V.V. Varetsky, A.G. Rakochi, I.R. Dmitrieva, M.JU. Makarchuk
Scientific Center for Radiation Medicine of Academy ofMedical Sciences of Ukraine;Kyiv National Shevchenko University, Kyiv, Ukraine
Abstract
The aim of this study was to investigate the oxidative effect of
the low-level radiation upon the higher nervous activity. Be-
havioral (shuttle-box) and statistical methods were used. The
effect of the ionizing radiation (0,05 Gy) upon the indices of
rats behavioral reaction as well as ability of some antioxidants
(alpha-tocopherol, ascorbic acid, beta-carotene) used sepa-
rately and in complex to diminish exposure effects on the
indices studied have been investigated Beta-carotene demon-
strated the largest protective effect alone and as a component
in complex compound. Alpha-tocopherol used in animal
exposured to the dose of 0,05 Gy, could case decline of the rats
behavior reactions indices; this suggest that use of antioxidant
therapy demands certain cautiousness. The results obtained
suggest dominant role of the oxidant stress during ionizing
radiation at least in dose of 0,05 Gy.
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