Are prostaglandines involved in the sympathetic-nociceptive interaction in humans?
R Maag, J Schattschneider, I zum Buttel, A Binder, J Ludwig, G Wasner, R Baron · Aktuelle Neurologie · 2005 · Heft 10
Bibliografische Angaben
Zusammenfassung
Aim of investigation: Iontophoresis of norepinephrine in capsaicin-treated skin is followed by an increase in spontaneous and evoked pains. It is unclear whether norepinephrine acts directly on adrenergic receptors located on nociceptive afferents or triggers prostaglandine release from sympathetic postganglionic terminals as suggested by animal studies. The effect of norepinephrine on capsaicin-induced pain prior and after inhibition of cyclooxygenase was studied. Methods: In 10 healthy subjects norepinephrine or placebo was iontophorised after topical application of capsaicin in the forearm. The effect of iont…