Neuropsychiatric symptoms and executive function impairments in Alzheimer’s disease and vascular dementia: The role of subcortical circuits

ABSTRACT Neuropsychiatric symptoms (NPS) in dementia are prevalent, under-recognized and little studied regarding their pathophysiological aspects. The pathophysiological mechanism, as well as the possible role of vascular lesions in the genesis of these symptoms, are still matters of debate. Objec...

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Main Authors: Chan Tiel, Felipe Kenji Sudo, Ana Beatriz Calmon
Format: Article
Language:English
Published: Associação Neurologia Cognitiva e do Comportamento 2019-09-01
Series:Dementia & Neuropsychologia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642019000300293&tlng=en
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author Chan Tiel
Felipe Kenji Sudo
Ana Beatriz Calmon
author_facet Chan Tiel
Felipe Kenji Sudo
Ana Beatriz Calmon
author_sort Chan Tiel
collection DOAJ
description ABSTRACT Neuropsychiatric symptoms (NPS) in dementia are prevalent, under-recognized and little studied regarding their pathophysiological aspects. The pathophysiological mechanism, as well as the possible role of vascular lesions in the genesis of these symptoms, are still matters of debate. Objective: to describe and compare the prevalence and severity of NPS in subjects with Alzheimer's disease (AD) and vascular dementia (VaD). Methods: a cross-sectional study involving 82 outpatients, divided into two groups (AD × VaD), was conducted. Patients were submitted to the Cambridge Cognitive Test (CAMCOG), the Clock Drawing Test (CLOX 1 and 2), the Neuropsychiatric Inventory (NPI) and the Clinical Dementia Rating (CDR) scale. Neuroimaging was scored using the de Leon and Fazekas scales. Results: 90.8% of the patients had at least one neuropsychiatric symptom. There were statistical differences on the CLOX test and in the apathy symptoms between AD and VaD groups. Apathy and disinhibition proved more prevalent in patients with higher vascular load. Conclusion: apathy and impaired executive function may reflect vascular damage in subcortical circuits in dementia patients.
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spelling doaj.art-54b7d4aa957f4a789df62965d21bdf362022-12-21T21:38:36ZengAssociação Neurologia Cognitiva e do ComportamentoDementia & Neuropsychologia1980-57642019-09-0113329329810.1590/1980-57642018dn13-030005Neuropsychiatric symptoms and executive function impairments in Alzheimer’s disease and vascular dementia: The role of subcortical circuitsChan Tielhttps://orcid.org/0000-0001-7999-8675Felipe Kenji SudoAna Beatriz CalmonABSTRACT Neuropsychiatric symptoms (NPS) in dementia are prevalent, under-recognized and little studied regarding their pathophysiological aspects. The pathophysiological mechanism, as well as the possible role of vascular lesions in the genesis of these symptoms, are still matters of debate. Objective: to describe and compare the prevalence and severity of NPS in subjects with Alzheimer's disease (AD) and vascular dementia (VaD). Methods: a cross-sectional study involving 82 outpatients, divided into two groups (AD × VaD), was conducted. Patients were submitted to the Cambridge Cognitive Test (CAMCOG), the Clock Drawing Test (CLOX 1 and 2), the Neuropsychiatric Inventory (NPI) and the Clinical Dementia Rating (CDR) scale. Neuroimaging was scored using the de Leon and Fazekas scales. Results: 90.8% of the patients had at least one neuropsychiatric symptom. There were statistical differences on the CLOX test and in the apathy symptoms between AD and VaD groups. Apathy and disinhibition proved more prevalent in patients with higher vascular load. Conclusion: apathy and impaired executive function may reflect vascular damage in subcortical circuits in dementia patients.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642019000300293&tlng=envascular dementiaAlzheimerneuropsychiatric symptomsapathy
spellingShingle Chan Tiel
Felipe Kenji Sudo
Ana Beatriz Calmon
Neuropsychiatric symptoms and executive function impairments in Alzheimer’s disease and vascular dementia: The role of subcortical circuits
Dementia & Neuropsychologia
vascular dementia
Alzheimer
neuropsychiatric symptoms
apathy
title Neuropsychiatric symptoms and executive function impairments in Alzheimer’s disease and vascular dementia: The role of subcortical circuits
title_full Neuropsychiatric symptoms and executive function impairments in Alzheimer’s disease and vascular dementia: The role of subcortical circuits
title_fullStr Neuropsychiatric symptoms and executive function impairments in Alzheimer’s disease and vascular dementia: The role of subcortical circuits
title_full_unstemmed Neuropsychiatric symptoms and executive function impairments in Alzheimer’s disease and vascular dementia: The role of subcortical circuits
title_short Neuropsychiatric symptoms and executive function impairments in Alzheimer’s disease and vascular dementia: The role of subcortical circuits
title_sort neuropsychiatric symptoms and executive function impairments in alzheimer s disease and vascular dementia the role of subcortical circuits
topic vascular dementia
Alzheimer
neuropsychiatric symptoms
apathy
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642019000300293&tlng=en
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AT felipekenjisudo neuropsychiatricsymptomsandexecutivefunctionimpairmentsinalzheimersdiseaseandvasculardementiatheroleofsubcorticalcircuits
AT anabeatrizcalmon neuropsychiatricsymptomsandexecutivefunctionimpairmentsinalzheimersdiseaseandvasculardementiatheroleofsubcorticalcircuits