Enriched But Not Depleted Uranium Affects Central Nervous System In Long-Term Exposed Rat
DOI: 10.1016/j.neuro.2005.05.005
Title: Enriched But Not Depleted Uranium Affects Central Nervous System In Long-Term Exposed Rat
Journal Title: NeuroToxicology
Volume: 26
Issue: 6
Publication Date: December 2005
Start Page: 1015
End Page: 1020
Published online: online 5 July 2005
ISSN: 0161-813X
Affiliations:

  • 1 Institut de Radioprotection et de Sûreté Nucléaire, Direction de la Radioprotection de l’Homme – Service de Radiobiologie et d’Épidémiologie, Laboratoire de Radiotoxicologie Expérimentale, BP 166-26702 Pierrelatte, France

  • 2 Institut de Radioprotection et de Sûreté Nucléaire, Direction de la Radioprotection de l’Homme, BP17-92262 Fontenay-aux-Roses, France
  • Abstract: is well known to induce chemical toxicity in kidneys, but several other target organs, such as central nervous system, could be also affected. Thus in the present study, the effects on sleep–wake cycle and behavior were studied after chronic oral exposure to Enriched or depleted uranium. Rats exposed to 4% Enriched uranium for 1.5 months through drinking water, accumulated twice as much uranium in some key areas such as the hippocampus, hypothalamus and adrenals than did control rats. This accumulation was correlated with an increase of about 38% of the amount of paradoxical sleep, a reduction of their spatial working memory capacities and an increase in their anxiety. Exposure to depleted uranium for 1.5 months did not induce these effects, suggesting that the radiological activity induces the primary events of these effects of uranium.
    Accepted: 22 April 2005
    Received: 8 February 2005
    Tel: +33 475 50 43 81
    Fax: +33 475 50 43 26
    Email: philippe.lestaevel@irsn.fr

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