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. 1977 Jan;59(1):61–68. doi: 10.1111/j.1476-5381.1977.tb06977.x

Modification by capsaicin and compound 48/80 of dye leakage induced by irritants in the rat.

P T Arvier, L A Chahl, R J Ladd
PMCID: PMC1667702  PMID: 556966

Abstract

Concentration-related dye leakage produced by intracutaneous injections of irritants was measured in rats by an Evans blue technique. 2 In rats pretreated with a total dose of 50 mg capasaicin over 4 days, the response to capsaicin, formalin, HCl, KCl, prostaglandin E1, bradykinin and bradykinin with prostglandin E1 (10(-6) M) were greatly reduced, the responses to histamine and 5-hydroxytryptamine were slightly reduced and those to adenosine 5'-triphosphate (ATP) and compound 48/80 were unaffected. 3 Pretreatment with intracutaneous injections of compound 48/80 (0.5 mug, 24 and 48 h previously) recuded the responses to ATP, compound 48/80, HCl, KCl, prostaglandin E1, and bradykinin but did not affect those to histamine, 5-hydroxytryptamine or bradykinin with prostaglandin E1 (10(-6) M). 4 Responses to capsaicin and formalin produced spotted blueing extending over a large area and were suppressed by compound 48/80 in the smaller pretreated area only. Capsaicin responses were reduced with larger doses of compound 48/80 (total dose 15 mug). 5 It is concluded that the production of neurogenic oedema involves both sensory nerves and mast cells.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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