Experimental study about the rat model of diffuse brain injury and the pathophysiological characteristics in the rats after injury
- VernacularTitle:大鼠弥漫性脑损伤模型制作及伤后病理生理变化
- Author:
Xuesong LI
;
Dangyu PI
;
Xin LIU
- Publication Type:Journal Article
- Keywords:
Diffuse brain injury;
Disease models;
animal
- From:
Chinese Journal of Primary Medicine and Pharmacy
2008;15(8):1307-1309,插1
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop-the rat model of diffuse brain injury(DBI)and to observe the pathophysio logical alteration of the rats after.traumatic injury.Methods A modified Marmarou's traumatic device W88 used to establish the animal model of diffuse brain injury with different degree through changing the impact condition that was applied on the rat brain(including 80cm 450g,120 cm 450g and 180cm 400g);the animal model was evaluated by observing the variations of nervous system signs,vital signs,sensorimotor function,and morphological changes of brain tissue in the rats that have received different impacts.Results The significant changes in nervous system signs,vital signs and sensorimotor function had been observed in all rats that were subjected to the different impact.The pathologic changcs of DBI in rats brain could he found in all groups.Moreover,this characteristic changes would have became more significant following the traumatic iaiury when the impact energy was increased.Conclusion The rat model of graded diffuse brain injury have been developed successfully.The moderate impact(120cm 450g)could produce low animal death rate and result in obvious pathologieal alterations in the injured rat brain.This impact condition would be suitable to be used in the study about DBI.
