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Establishment of a poisoned animal model of toxic encephalopathy induced by 1,2-dichloroethane.

Abstract
1,2-dichloroethane(1,2-DCE) is toxic, especially by inhalation due to its high vapour pressure. Inhalation of concentrated 1,2-DCE vapor can induce effects on the human nervous system, even encephalopathy. However, 1,2-DCE toxic encephalopathy has seldom been reported, and no adequate data were available to evaluate the encephalopathy of 1,2-DCE in experimental animals. The aim of the present study was to establish a toxic experimental animal model induced by 1,2-DCE. Dose effect and time effect of 1,2-DCE on the nervous system were detected. The rats were treated by 1,2-DCE at various concentrations of 0, 2.5, 5.0, 10.0 g/m3 for 6 h and treatment of rats at 10.0 g/m3 for 0, 3, 6, and 12 h. Morphology of brain tissue was observed by HE staining and TEM under light and electron microscope, besides water contents in the cortex and medulla of rats were analyzed. The results indicated that 1,2-DCE induced abnormal histopathology, and significantly higher water content were confirmed in the cerebral cortex of toxic animal model in a dose- and time-dependent manner. To declare that 1,2-DCE could induce toxic encephalopathy with a pathological feature of cerebral edema is very important for the medical rescue in urgent toxic accidents.
AuthorsQ Zhang, Q Niu, L Y Li, L Yang, X L Guo, J X Huang, L P Wang, Y X Liang
JournalInternational journal of immunopathology and pharmacology (Int J Immunopathol Pharmacol) 2011 Jan-Mar Vol. 24 Issue 1 Suppl Pg. 79S-83S ISSN: 0394-6320 [Print] England
PMID21329570 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Ethylene Dichlorides
  • ethylene dichloride
Topics
  • Animals
  • Brain (pathology)
  • Brain Diseases (chemically induced)
  • Disease Models, Animal
  • Dose-Response Relationship, Drug
  • Ethylene Dichlorides (poisoning)
  • Female
  • Male
  • Rats
  • Rats, Sprague-Dawley

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