期刊
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
卷 36, 期 3, 页码 1261-1265出版社
ELSEVIER
DOI: 10.1016/j.etap.2013.09.017
关键词
Cadmium; Selenium; Protein synthesis; Metallothioneins
The study aimed at evaluating the effects of cadmium and selenite ions on protein synthesis and metallothioneins content in mice liver after 2 h, 8 h, 24 h and 14 days of exposure. Our studies revealed that cadmium suppressed protein synthesis after 2 h and 24h; but activated after 8h and 14 days. Also, the endogenous mRNA translation were reduced under any exposure to cadmium, meanwhile, metallothioneins content was decreased after 2 h, but then was progressively increasing up to 492% after 14 days. Meantime, selenite did not influence metallothioneins content, caused mild activation of protein synthesis, and slightly suppressed the endogenous mRNA translation. The combined treatments with cadmium and selenite favored toward resisting of protein synthesis to cadmium after 2 h and 24h of intoxication. Besides, selenite also protected translation against cadmium in cell-free systems, but did not attenuate effects of cadmium on metallothioneins content. (c) 2013 Elsevier B.V. All rights reserved.
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