Zusammenfassung
Neurophysiologische Studien zeigen, dass der Pruritus eine eigenständige Sinnesqualität ist, die mit eigenen Leitungsbahnen in der Peripherie und im zentralen Nervensystem von der Schmerzempfindung abgegrenzt werden kann. Der Pruritus ist eine sehr beeinträchtigende Sinneswahrnehmung und das am häufigsten beklagte Symptom, das vom Hautorgan ausgeht. Histamin galt lange Zeit als einziger Mediator des Pruritus. Mittlerweile ist bekannt, dass – neben Histamin – eine Vielzahl von Neuromediatoren wie Neurotrophinen, Neuropeptiden und deren Rezeptoren eine wichtige Rolle bei der Vermittlung von Pruritus spielt. Neuromediatoren werden von Mastzellen, Keratinozyten und eosinophilen Granulozyten, die in engem Kontakt zu den peripheren Nervenfasern stehen, gebildet. Durch die Entschlüsselung der neurophysiologischen Zusammenhänge des Pruritus können neue und effiziente Therapieansätze des Pruritus eröffnet werden.
Abstract
Neurophysiologic studies indicate that pruritus is a distinct sensation with its own neuronal pathways in the peripheral and central nervous system which are different from that of pain. Pruritus is a very disturbing sensation and most common skin-related symptom. Histamine was long considered to be the only mediator of pruritus. However, it has become evident that – besides histamine – a variety of neuromediators such as neurotrophins and neuropeptides as well as their receptors play an important role in pruritus. Neuromediators are produced by mast cells, keratinocytes and eosinophil granulocytes which are in close contact to sensory nerves. The discovery of these neurophysiological interactions opens new and promising therapeutic options for the treatment of pruritus.
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Raap, U., Ikoma, A. & Kapp, A. Neurophysiologie des Pruritus. Hautarzt 57, 379–384 (2006). https://doi.org/10.1007/s00105-006-1125-8
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DOI: https://doi.org/10.1007/s00105-006-1125-8