Chemosensitive pain fibres and inflammation

G. Jancsó, E. Kiraly, A. Jancso-Gabor

Research output: Contribution to journalArticle

115 Citations (Scopus)

Abstract

Rats were treated with 50 mg/kg capsaicin on the second day of life or at the age of two-three months. Inflammatory reactions were brought about three-four and one-two months after capsaicin pretreatment, respectively. The fibre composition and fibre size spectra of saphenous nerves were also determined. Neurogenic inflammation was produced either by antidromic electrical stimulation of the saphenous nerve or by mustard oil in the skin of the rat paw. The permeability increasing effect of histamine, serotonin and bradykinin was tested on the abdominal skin. Neonatal capsaicin treatment resulted in a marked reduction of the neurogenic inflammatory response, and parallel with this there was a 60-70% reduction in the number of unmyelinated (C) fibres of the saphenous nerve. There was also a significant reduction in the vascular permeability increasing effect of histamine, serotonin and bradykinin in rats treated as neonates with capsaicin, but not in those treated in the adult age. It is concluded that chemosensitive pain fibres by the release of a neurogenic permeability increasing factor, most probably substance P, may effectively modulate the acute inflammatory reactions. Furthermore, it seems likely that substances of neuronal origin may contribute to the protective mechanisms of the organism and to the maintenance of the normal function of the skin.

Original languageEnglish
Pages (from-to)57-66
Number of pages10
JournalInternational Journal of Tissue Reactions
Volume2
Issue number2
Publication statusPublished - 1980

Fingerprint

Capsaicin
Inflammation
Pain
Bradykinin
Skin
Histamine
Permeability
Serotonin
Neurogenic Inflammation
Capillary Permeability
Substance P
Nerve Fibers
Electric Stimulation
Maintenance
Therapeutics

ASJC Scopus subject areas

  • Cell Biology
  • Physiology

Cite this

Chemosensitive pain fibres and inflammation. / Jancsó, G.; Kiraly, E.; Jancso-Gabor, A.

In: International Journal of Tissue Reactions, Vol. 2, No. 2, 1980, p. 57-66.

Research output: Contribution to journalArticle

Jancsó, G, Kiraly, E & Jancso-Gabor, A 1980, 'Chemosensitive pain fibres and inflammation', International Journal of Tissue Reactions, vol. 2, no. 2, pp. 57-66.
Jancsó, G. ; Kiraly, E. ; Jancso-Gabor, A. / Chemosensitive pain fibres and inflammation. In: International Journal of Tissue Reactions. 1980 ; Vol. 2, No. 2. pp. 57-66.
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