Zusammenfassung
Hintergrund
In den letzten Jahren haben sich zunehmend Hinweise darauf ergeben, dass es sich bei der amyotrophen Lateralsklerose (ALS) nicht um eine reine Motoneuronerkrankung, sondern um eine Multisystemdegeneration mit einer Vielzahl nichtmotorischer Symptome handelt. Diese moderne Auffassung untermauerten neuropathologische und bildgebende Erkenntnisse.
Fragestellung
Es soll die Frage beantwortet werden, welche Erkenntnisse für das Vorliegen einer Multisystemdegeneration sprechen und was dies für Diagnostik und Therapie der Erkrankung bedeutet.
Material und Methode
Zusammenfassung und Bewertung neuester klinischer, bildgebender und neuropathologischer Studien.
Ergebnisse
Die aktuelle Studienlage belegt, dass Symptome der ALS weit über das motorische Nervensystem hinausgehen und insbesondere kognitive Funktionen, die Okulomotorik, das extrapyramidale System und die Sensibilität betreffen. Als neuropathologisches Korrelat findet sich eine stadienhafte Ausbreitung des Proteins „transactive response DNA binding protein 43 kDa“ (TDP-43) über funktionell verbundene kortikale Strukturen.
Schlussfolgerungen
Nichtmotorische Symptome kommen bei der ALS regelmäßig vor, auch wenn sie klinisch zumeist nicht im Vordergrund stehen. Das Wissen um ihr neuropathologisches Korrelat bietet neue Perspektiven für die Diagnostik, aber auch für die Therapie.
Summary
Background
There is increasing evidence that amyotrophic lateral sclerosis (ALS) has to be regarded as multisystem degeneration rather than as purely a motor neuron disease, as it also includes various dnonmotor symptoms. This modern view has been confirmed by neuropathological and imaging findings.
Objectives
To review recent findings supporting the idea of multisystem degeneration and to describe the implications for diagnostics and therapy.
Methods
A discussion of recent clinical, imaging, and neuropathological findings is presented.
Results
Symptoms of ALS include not only motor symptoms but also cognitive impairment, oculomotor abnormalities, and extrapyramidal and sensory symptoms. As a neuropathological correlate, a systematic spreading of „transactive response DNA binding protein 43 kDa“ (TDP-43) over functionally connected cortical structures has been described.
Conclusions
Nonmotor symptoms are regularly seen in ALS, although they usually do not dominate the clinical picture. Recent neuropathological findings offer new perspectives for diagnostics and therapy in ALS.
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Wir danken D. Ewert für seine Hilfe bei der Erstellung der Grafiken.
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A. Hübers, A. C. Ludolph, A. Rosenbohm, E. H. Pinkhardt, J. H. Weishaupt und J. Dorst geben an, dass kein Interessenkonflikt besteht.
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Hübers, A., Ludolph, A.C., Rosenbohm, A. et al. Amyotrophe Lateralsklerose. Nervenarzt 87, 179–188 (2016). https://doi.org/10.1007/s00115-015-0030-8
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DOI: https://doi.org/10.1007/s00115-015-0030-8
Schlüsselwörter
- Amyotrophe Lateralsklerose
- Motoneuronerkrankung
- Protein TDP-43
- DNA-bindende Proteine
- Nervensystemerkrankungen