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Neuropeptides in the human intervertebral disc

✍ Scribed by Dr. I. K. Ashton; S. Roberts; D. C. Jaffray; J. M. Polak; S. M. Eisenstein

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 780 KB
Volume: 12
Category: Article
ISSN: 0736-0266
DOI: 10.1002/jor.1100120206

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The innervation of the human intervertebral disc was investigated by immunochemical methods. Immunoreactivity to the general nerve marker protein gene product (PGP 9.5) was found in the outer annulus fibrosus of 11 of 12 discs removed during anterior arthrodesis for back pain. PGP 9.5‐immunoreactive fibres ran between and across the collagenous lamellae, both in association with blood vessels and distant from them, and extended at least 3 mm into the disc. No innervation was observed in the nucleus pulposus. Fine fibres (< 1 μm in diameter) immunoreactive to calcitonin gene‐related peptide and substance P (neuropeptides located in sensory and possibly nociceptive nerves) were identified in eight and four of the annuli fibrosi, respectively. Nerve fibres immunoreactive to vasoactive intestinal peptide and to the c‐flanking peptide of neuropeptide Y were found in the majority of specimens of annulus fibrosus that were examined.

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