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Cited by 348

The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.

Motor Neuron dysfunction in frontotemporal dementia

Open access
Burrell, James R., Kiernan, Matthew C., Vucic, Steve, Hodges, John R.·2011·Brain

Abstract

Frontotemporal dementia and motor neuron disease share clinical, genetic and pathological characteristics. Motor neuron disease develops in a proportion of patients with frontotemporal dementia, but the incidence, severity and functional significance of motor system dysfunction in patients with frontotemporal dementia has not been determined. Neurophysiological biomarkers have been developed to document motor system dysfunction including: short-interval intracortical inhibition, a marker of corticospinal motor neuron dysfunction and the neurophysiological index, a marker of lower motor neuron dysfunction. The present study performed detailed clinical and neurophysiological assessments on 108 participants including 40 consecutive patients with frontotemporal dementia, 42 age- and gender-matched patients with motor neuron disease and 26 control subjects. Of the 40 patients with frontotemporal dementia, 12.5% had concomitant motor neuron disease. A further 27.3% of the patients with frontotemporal dementia had clinical evidence of minor motor system dysfunction such as occasional fasciculations, mild wasting or weakness. Biomarkers of motor system function were abnormal in frontotemporal dementia. Average short-interval intracortical inhibition was reduced in frontotemporal dementia (4.3 ± 1.7%) compared with controls (9.1 ± 1.1%, P < 0.05). Short-interval intracortical inhibition was particularly reduced in the progressive non-fluent aphasia subgroup, but was normal in patients with behavioural variant frontotemporal dementia and semantic dementia. The neurophysiological index was reduced in frontotemporal dementia (1.1) compared with controls (1.9, P < 0.001), indicating a degree of lower motor neuron dysfunction, although remained relatively preserved when compared with motor neuron disease (0.7, P < 0.05). Motor system dysfunction in frontotemporal dementia may result from pathological involvement of the primary motor cortex, with secondary degeneration of lower motor neurons in the brainstem and anterior horn of the spinal cord.

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Metadata

Authors
Burrell, J. R., Kiernan, M. C., Vucic, S., & Hodges, J. R.
Venue
Brain
Published
2011-08-11
Volume
134
Issue
9
Pages
2582-2594
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2157372514
Cited by
348
References
10
FWCI
7.87
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Motor Neuron dysfunction in frontotemporal dementia. https://app.cochat.ai/papers/10.1093/brain/awr195
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Burrell, J. R., Kiernan, M. C., Vucic, S., & Hodges, J. R. (2011). Motor Neuron dysfunction in frontotemporal dementia. Brain. https://doi.org/10.1093/brain/awr195

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