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  • Title: Effect of selenium on lead-induced alterations in rat brain.
    Author: Nehru B, Dua R, Iyer A.
    Journal: Biol Trace Elem Res; 1997 Jun; 57(3):251-8. PubMed ID: 9359991.
    Abstract:
    The effects of lead (Pb) and selenium (Se) interactions on central nervous system (CNS) functions were seen in adult rats by both biochemical and histologic pathological alterations. Pb administration of 20 mg/kg body wt for 8 wk showed degenerative changes only in the cerebral cortex. The changes in the cerebellar regions were not significant. Biochemically a marked decrease in the DNA, RNA, and protein content was seen following lead treatment. These decreases were significant in both the regions of the brain. During the concomitant administration of Pb and Se, the alterations in the transverse section of cerebral cortex showed only marginal changes. The values of DNA and RNA content showed significant improvement in both regions of the brain compared to the Pb treated group.
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