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Abstract Title:

Selenium supplementation ameliorates static magnetic field-induced disorders in antioxidant status in rat tissues.

Abstract Source:

Environ Toxicol Pharmacol. 2011 Jan ;31(1):100-6. Epub 2010 Sep 29. PMID: 21787674

Abstract Author(s):

Soumaya Ghodbane, Salem Amara, Catherine Garrel, Josiane Arnaud, Véronique Ducros, Alain Favier, Mohsen Sakly, Hafedh Abdelmelek

Article Affiliation:

Soumaya Ghodbane

Abstract:

The aim of this study was to investigate the effect of selenium supplementation on the antioxidant enzymatic system (such as GPx, GR and SOD), GSH and selenium level in liver, kidney, muscle and brain of static magnetic field (SMF) exposed rats. Male adult rats were divided into control rats (n=6), SMF-exposed rats (128 mT; 1h/day for 5 days), selenium-treated rats (Na(2)SeO(3), 0.2mg/l, in drinking water for 4 weeks) and co-exposed rats (selenium for 4 weeks and SMF during the last 5 consecutive days). Sub-acute exposure to SMF induces a decrease of selenium levels in kidney, muscle and brain. Our results also revealed a decrease of GPx activities in kidney and muscle. By contrast, SMF exposure increased total GSH levels and total SOD activities in liver, while glutathione reductase activity is unaffected. Selenium supplementation in SMF-exposed rats restored selenium levels in kidney, muscle and brain and elevated the activities of GPx in kidney and muscle to those of control group. In the liver, selenium supplementation failed to bring down the elevated levels of total GSH and SOD activity. Our investigations suggested that sub-acute exposure to SMF altered the antioxidant response by decreasing the level of total selenium in kidney, muscle and brain. Interestingly, selenium supplementation ameliorates antioxidant capacity in rat tissues exposed to SMF.

Study Type : Animal Study

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