Distribution of substance P and calcitonin gene-related peptide in the spinal cord of Cavalier King Charles Spaniels affected by symptomatic syringomyelia.
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The causes of clinical signs associated with syringomyelia in the Cavalier King Charles Spaniel (CKCS) are incompletely understood. In this study we compared expression of two pain-related neuropeptides: substance P (SP) and calcitonin gene related peptide (CGRP), in the spinal cord dorsal horn of normal dogs with that in CKCS with and without clinical signs of syringomyelia. There was a decrease in expression of both peptides in CKCS with 'symptomatic' syringomyelia that was also associated with significant asymmetry in SP-I and similar, though non-significant, asymmetry in CGRP-I compared with other groups. The asymmetric distribution of these pain-related peptides may be a consequence of syrinx-associated damage to grey matter but may also play a role in generation of pain.
author list (cited authors)
Hu, H. Z., Rusbridge, C., Constantino-Casas, F., & Jeffery, N.
complete list of authors
Hu, Hilary Zhaoxu||Rusbridge, Clare||Constantino-Casas, Fernando||Jeffery, Nick