Carotid Artery Dissection Model in Rats
Author Information
Author(s): Zhang Shufan, Han Zhenxiang, Cao Ying, Wu Weicheng, Liu Yuanzeng, Yang Shilin, Feng Xiaochao, Yu Chun, Zhu Zhu, Dong Qiang, Han Xiang
Primary Institution: Huashan Hospital, Fudan University, Shanghai, China
Hypothesis
Can a carotid artery dissection model be established in rats using beta-aminopropionitrile and mechanical torsion?
Conclusion
The study successfully established a carotid artery dissection model in rats with low mortality and high incidence.
Supporting Evidence
- BAPN treatment significantly affected the weight gain of rats.
- The group Bt had the highest incidence of CAD among all groups (p = 0.014).
- HE staining showed that the vascular walls were the thickest in group Bt (p < 0.001).
- Immunofluorescence staining revealed that the expression of a-SMA and SM22a were decreased remarkably in group Bt (p < 0.001).
- Both motor and sensory deficits were more severe in CAD group than control group (p = 0.0004; p = 0.0036).
- The relative infarction volumes of CAD group rats were significantly larger than control group (p < 0.001).
Takeaway
Researchers created a model of carotid artery dissection in young rats to help study strokes better. They found that using a special chemical and twisting the artery worked well.
Methodology
Sixteen rats were divided into two groups, one receiving beta-aminopropionitrile and the other water, followed by carotid artery torsion to establish the model.
Limitations
The sample size is small, and the model may not fully replicate all mechanisms of carotid artery dissection.
Participant Demographics
Male specific-pathogen free Sprague Dawley rats, 3 weeks old.
Statistical Information
P-Value
p = 0.014
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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