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Título

Abnormal sensorimotor plasticity in CADASIL correlates with neuropsychological impairment

AutorPalomar, F. J.; Suárez, Aída; Franco, Emilio; Carrillo, Fátima; Gil-Néciga, Eulogio; Mir, Pablo
Fecha de publicación2013
EditorBMJ Publishing Group
CitaciónJournal of Neurology, Neurosurgery and Psychiatry 84: 329-336 (2013)
Resumen[Objective] Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a small vessel disease of the brain caused by mutations in the NOTCH3 gene. CADASIL progresses, in some cases, to subcortical dementia with a particular cognitive impairment. Different diseases in the dementia spectrum share a central cholinergic and sensorimotor plasticity alteration. We aimed to study different intracortical circuits and sensorimotor plasticity in CADASIL patients using transcranial magnetic stimulation protocols, and to determine whether these characteristics correlated with the results of clinical neuropsychological evaluation.
[Methods] Ten CADASIL patients and 10 healthy subjects were included in the study. All subjects underwent a transcranial magnetic stimulation study examining different intracortical circuits. Sensorimotor plasticity was also assessed using a paired associative stimulation and extensive neuropsychological tests.
[Results] CADASIL patients showed a lack of intracortical facilitation, short latency afferent inhibition and sensorimotor plasticity when compared with control subjects. CADASIL patients also showed an altered neuropsychological profile. Correlation between sensorimotor plasticity and neuropsychological alterations was observed in CADASIL patients.
[Conclusions] These results suggest that acetylcholine and glutamate could be involved in the dementia process in CADASIL and that abnormal sensorimotor plasticity correlates with the neuropsychological profile in CADASIL patients.
Versión del editorhttp://doi.org/10.1136/jnnp-2012-303960
URIhttp://hdl.handle.net/10261/142728
DOI10.1136/jnnp-2012-303960
Identificadoresissn: 0022-3050
e-issn: 1468-330X
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