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Erschienen in: Der Nervenarzt 12/2013

01.12.2013 | Leitthema

Neuropathische Schmerzen durch Nav1.7-Mutationen

Klinik und Therapie

verfasst von: K. Doppler, Prof. Dr. C. Sommer

Erschienen in: Der Nervenarzt | Ausgabe 12/2013

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Zusammenfassung

Spannungsabhängige Natriumkanäle sind essenziell für die Elektrogenese in erregbaren Zellen. Die Isoform Nav1.7 wird primär in Nozizeptoren exprimiert. Mutationen im SCN9A-Gen, welches die α-Untereinheit des Nav1.7-Kanal kodiert, sind Ursache der primären Erythromelalgie und der paroxysmalen extremen Schmerzstörung, zweier seltener neuropathischer Schmerzerkrankungen. Kürzlich konnte gezeigt werden, dass SCN9A-Mutationen auch für einen Teil der idiopathischen Small-fiber-Neuropathien verantwortlich sind und dass Polymorphismen im SCN9A-Gen mit einer gesteigerten Schmerzempfindlichkeit einhergehen. Diese Erkenntnisse tragen nicht nur zum pathophysiologischen Verständnis neuropathischer Schmerzsyndrome bei, sondern bieten auch Ansatzpunkte für eine zielgerichtete Schmerztherapie.
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Metadaten
Titel
Neuropathische Schmerzen durch Nav1.7-Mutationen
Klinik und Therapie
verfasst von
K. Doppler
Prof. Dr. C. Sommer
Publikationsdatum
01.12.2013
Verlag
Springer Berlin Heidelberg
Erschienen in
Der Nervenarzt / Ausgabe 12/2013
Print ISSN: 0028-2804
Elektronische ISSN: 1433-0407
DOI
https://doi.org/10.1007/s00115-012-3621-7

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