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  • Title: The effect of chondroitinase ABC on rabbit intervertebral disc. Radiological, histological and electron microscopic findings.
    Author: Park JS, Ahn JI.
    Journal: Int Orthop; 1995; 19(2):103-9. PubMed ID: 7649679.
    Abstract:
    Seventy-eight rabbit lumbar discs were evaluated by radiographs and histology after the injection of chondroitinase ABC (40 U/ml for each disc) and compared with injection with phosphate buffer, and also with a control group who were not injected. There was considerable narrowing of the disc space after chondroitinase ABC injection. Safranin-0 depletion was present in the anterior part of the annulus fibrosus near to the nucleus pulposus in all the treated discs, indicating loss of proteoglycan. Electron microscopy showed collapse of the chondrocytes and notochordal cells. These findings suggest that chondroitinase ABC may be another chemonucleolytic agent which decreases disc volume and consequently decompresses the spinal cord or nerve roots; its effects were confined to the tissues within the intervertebral disc.
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