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 Vol 15: Value of Micro-CT for Monitoring Spinal Microvascular Changes after Chronic Spinal Cord Compression.


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This article is from International Journal of Molecular Sciences, volume 15.AbstractNeurological degeneration can occur after compression of the spinal cord. It is widely accepted that spinal cord compression leads to ischemic lesions and ultimately neurological dysfunction due to a narrowed spinal canal. Therefore, an in-depth understanding of the pathogenesis of spinal cord compression injury is required to help develop effective clinical interventions. In the present study, we propose a new method of quantitative 3D micro-CT to observe microvascular events in a chronic spinal cord compression rat model. A total of 36 rats were divided into two groups: sham control group n = 12 and compressive spinal cord injury group n = 24. Rats were scarified at four weeks after surgery. In each group, CD34 micro-vessel immunohistochemical staining was performed in half of the animals, while micro-CT scanning was performed in the other half. Microvessel density MVD was measured after immunohistochemical staining, while the vascular index VI was measured in 3D micro-CT. In comparison with sham control, abnormal somatosensory evoked potentials SEP can be seen in all 24 cases of the compression group, and VI shows the amount of microvessels reduced consistently and significantly p 0.01. A significant correlation is also found between MVD and VI r = 0.95, p 0.01. These data suggest that quantitative 3D micro-CT is a sensitive and promising tool for investigating microvascular changes during chronic compressive spinal cord injury.



Autor: Long, Hou-Qing; Xie, Wen-Han; Chen, Wen-Li; Xie, Wen-Lin; Xu, Jing-Hui; Hu, Yong

Fuente: https://archive.org/







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