Expression of c-fos protein in substance P receptor-like immunoreactive neurons in response to noxious stimuli on the urinary bladder: an observation in the lumbosacral cord segments of the rat

Neurosci Lett. 1995 Sep 29;198(2):139-42. doi: 10.1016/0304-3940(95)11991-5.

Abstract

Chemical irritation of the urinary bladder with formalin in the rat induced c-fos protein-like immunoreactivity in more than 80% of substance P receptor-like immunoreactive (SPR-LI) neurons of the dorsal commissural nucleus, sacral parasympathetic nucleus and lamina I in the 6th lumbar and 1st sacral cord segments. These neurons with SPR-LI may receive noxious information from the urinary bladder through the primary afferent fibers with substance P.

MeSH terms

  • Animals
  • Female
  • Formaldehyde / pharmacology
  • Immunohistochemistry
  • In Vitro Techniques
  • Irritants / pharmacology
  • Neurons / metabolism*
  • Proto-Oncogene Proteins c-fos / biosynthesis*
  • Rats
  • Rats, Sprague-Dawley
  • Receptors, Neurokinin-1 / metabolism*
  • Spinal Cord / cytology
  • Spinal Cord / physiology*
  • Stimulation, Chemical
  • Urinary Bladder / innervation*
  • Urinary Bladder / metabolism

Substances

  • Irritants
  • Proto-Oncogene Proteins c-fos
  • Receptors, Neurokinin-1
  • Formaldehyde