期刊
BURNS
卷 35, 期 1, 页码 98-103出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.burns.2008.04.005
关键词
Scald; Endothelin-1; Cerebral artery; Rat
资金
- Natural Science Foundation of Jiangxi Province [0440062]
- Science Foundation of Jiangxi Provincial Department of Education [2007-80]
The purpose of this study was to investigate the influences of scald on endothelin-1 (ET-1) expression in cerebral vessels of rats, and to further elucidate the relationship between changes of ET-1 expression and scald-induced cerebral vascular remodelling resulting in cerebral vasospasm. The ET-1 levels in the cerebral basilar arteries were estimated by radioimmunoassay. Expression of ET-1 and its mRNA were determined by Western blotting and reverse transcriptase polymerase chain reaction (RT-PCR), respectively. Changes of cerebral basilar artery histology were observed and diameters were measured by angiography. The results showed that the ET-1 levels at 3 h after scald were enhanced, peaking at 12 h; the expression of ET-1 mRNA was also enhanced, peaking at 6 h. Simultaneous vascular remodelling was observed in the cerebral basilar arteries, vasoconstriction peaking at 12 h. It is suggested that ET-1 plays an important role in the pathogenesis of scald-induced cerebral vasospasm and cerebral circulation disorder. Crown Copyright (C) 2008 Published by Elsevier Ltd and ISBI. All rights reserved.
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