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Photothrombosis combined with thrombin injection establishes a rat model of cerebral venous sinus thrombosis
- Source :
- Neuroscience. 306
- Publication Year :
- 2014
-
Abstract
- 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.
- Subjects :
- Male
Pathology
medicine.medical_specialty
Motor Activity
Blood–brain barrier
Neuroprotection
chemistry.chemical_compound
Sinus Thrombosis, Intracranial
Edema
Medicine
Animals
Cerebral venous sinus thrombosis
Fluorescein Angiography
Rats, Wistar
Evans Blue
Neovascularization, Pathologic
business.industry
General Neuroscience
Thrombin
medicine.disease
Photochemical Processes
Thrombosis
Pathophysiology
Rats
Disease Models, Animal
medicine.anatomical_structure
chemistry
Blood-Brain Barrier
Rotarod Performance Test
medicine.symptom
Lasers, Semiconductor
business
Superior Sagittal Sinus
Superior sagittal sinus
Subjects
Details
- ISSN :
- 18737544
- Volume :
- 306
- Database :
- OpenAIRE
- Journal :
- Neuroscience
- Accession number :
- edsair.doi.dedup.....c9fd2424b9730d447ab5660f024f9230