Summary
Flushing in rosacea has been investigated by means of (a) pharmacological inhibition of some possible chemical mediators and (b) titration of bradykinin as a possible effector directly in the blood. Clonidine-inhibited flushing was seen in all patients (mean 45%), other drugs had poorer results. Bradykinin increased in all patients at the climax of flushing (mean 60%). These findings support the hypothesis that epinephrine promotes a bradykinin release responsible for vasodilation.
Zusammenfassung
Die Flush-Reaktion bei Rosazea wurde (a) durch pharmakologische Hemmung einiger Mediatoren und (b) durch Titration von Bradykinin, das möglicherweise einen direkten Effektor im Blut darstellt, untersucht.
Clonidin konnte die Flush-Reaktion bei allen Patienten (durchschnittlich um 45%) hemmen. Andere Medikamente zeigten schlechtere Ergebnisse. Der Bradykininspiegel fand sich auf dem Höhepunkt der Flush-Reaktion bei allen Patienten deutlich eleviert (durchschnittlich um 60%). Diese Ergebnisse belegen die Hypothese, daß Adrenalin die Freisetzung von Bradykinin fördert und somit eine Vasodilatation bewirken kann.
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Guarrera, M., Parodi, A., Cipriani, C. et al. Flushing in rosacea: A possible mechanism. Arch Dermatol Res 272, 311–316 (1982). https://doi.org/10.1007/BF00509061
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DOI: https://doi.org/10.1007/BF00509061