PHOTOTHROMBOSIS COMBINED WITH THROMBIN INJECTION ESTABLISHES A RAT MODEL OF CEREBRAL VENOUS SINUS THROMBOSIS

被引:15
作者
Chen, C. [1 ]
Wang, Q. [1 ]
Gao, Y. [1 ]
Lu, Z. [1 ]
Cui, X. [1 ]
Zheng, T. [1 ]
Liu, Y. [1 ]
Li, X. [1 ]
He, X. [1 ]
Zhang, X. [1 ]
Duan, C. [1 ]
Li, T. [1 ]
机构
[1] So Med Univ, Zhujiang Hosp, Dept Neurosurg,Guangdong Prov Key Lab Brain Funct, Natl Key Clin Specialty,Engn Technol Res Ctr,Educ, Guangzhou 510282, Guangdong, Peoples R China
关键词
words: cerebral venous sinus thrombosis; model; blood-brain barrier; edema; photochemical reaction; SUPERIOR SAGITTAL SINUS; TISSUE-PLASMINOGEN-ACTIVATOR; BRAIN-BARRIER DISRUPTION; BLOOD-FLOW; VEIN-THROMBOSIS; MOUSE MODEL; OCCLUSION; STROKE; DISTURBANCE; EXPRESSION;
D O I
10.1016/j.neuroscience.2015.08.020
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Objective: Cerebral venous sinus thrombosis (CVST) is a rare but life-threatening disease and an animal model for in-depth study of CVST is needed. This study aimed to develop a rat model suitable for studying clinically relevant aspects of CVST and investigating its dynamic pathophysiological changes during a 7-day period. Method: A photothrombosis method was used to create a rat sinus-vein thrombosis model. A spot size-adjustable Diode Pumped Solid State laser (DPSS) combined with thrombin injection occluded the rostral and caudal superior sagittal sinus (SSS). The model was used to evaluate pathophysiological changes at different time points over 7 days. Evans Blue dye injection was used to detect alterations in blood-brain barrier (BBB) permeability. Brain water content was also measured. Moreover, we examined changes in brain infarct volume, neurological function, as well as histology after induction of CVST. Result: CVST in rats significantly altered BBB permeability, consistent with the development of brain edema. It was accompanied by an increase in brain infarct volume and deficits in neurological function that began on day 1, peaked on day 2, and typically improved by day 7 due to the neuroprotective effects of angiogenesis and gliocyte proliferation. Conclusion: In this study, we describe a rat model that produces clinically relevant pathophysiology and pathology that will facilitate evaluation of therapeutic regimens for CVST. Furthermore, our results indicate a period of optimal clinical intervention for patients with CVST, which may reduce the probability of dependency and death. (C) 2015 IBRO. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:39 / 49
页数:11
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