Abstract
To investigate the effect of 1, 2-dichloroethane (1, 2-DCE) on blood brain barrier. Acute toxic encephalopathy model was copied with the consecutive static inhalation of 1, 2-DCE. The water content of brain tissue was measured, and the blood brain barrier permeability was detected with lanthanum nitrate. The brain microvascular endothelial cells and neuroglial cells were cultured in vitro, which were administrated with 1, 2-DCE. The cell morphologic structures were observed under light microscope and electron microscope. (1) The extracellular edema was most found in the cerebral tissue and the leakage of lanthanum particles through the barrier were found with the lanthanum tracking method. (2) The water content in cerebral cortex in the moderate and high dose groups was significantly higher than that in the control group and became severer with the increases of the intoxicated time. The water content in cerebral medulla was significantly increased only at 6 hours after the intoxication. (3) The normal morphological structure of brain microvascular endothelial cells and neuroglial cells could be injured by 1, 2-DCE, and the injury to neuroglial cells caused by 1, 2-DCE occurred earlier and severer than that to brain microvascular endothelial cells. 1, 2-DCE can damage blood brain barrier and induce cerebral edema.
Published Version
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