Abnormal subcortical volumes and cortical thickness in Parkinson's disease with impulse control disorders

Background: The occurrence of impulse control disorders (ICDs) in Parkinson's disease (PD) is frequently attributed to dopamine replacement therapy. However, not all patients who receive medication develop ICDs. Recent imaging studies have suggested specific neuroanatomical abnormalities in pat...

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Main Authors: Shweta Prasad, Venkateswara Reddy Reddam, Albert Stezin, Ravi Yadav, Jitender Saini, Pramod Kumar Pal
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2019-01-01
Series:Annals of Indian Academy of Neurology
Subjects:
Online Access:http://www.annalsofian.org/article.asp?issn=0972-2327;year=2019;volume=22;issue=4;spage=426;epage=431;aulast=
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author Shweta Prasad
Venkateswara Reddy Reddam
Albert Stezin
Ravi Yadav
Jitender Saini
Pramod Kumar Pal
author_facet Shweta Prasad
Venkateswara Reddy Reddam
Albert Stezin
Ravi Yadav
Jitender Saini
Pramod Kumar Pal
author_sort Shweta Prasad
collection DOAJ
description Background: The occurrence of impulse control disorders (ICDs) in Parkinson's disease (PD) is frequently attributed to dopamine replacement therapy. However, not all patients who receive medication develop ICDs. Recent imaging studies have suggested specific neuroanatomical abnormalities in patients with PD and ICD. Objectives: This study aims to identify changes in volumes of subcortical structures and cortical thickness specific to patients with PD and ICDs. Methodology: A total of 11 patients with PD and ICD (PDICD(+)), 15 patients with PD without ICD (PDICD(−)), and 15 healthy controls were analyzed in this study. ICDs were diagnosed and quantified using the Questionnaire for Impulsive-Compulsive Disorders in PD-Rating Scale (QUIP-RS). Structural imaging was performed on a 3T scanner; volumes of subcortical structures and cortical thickness were obtained using first in FSL and FreeSurfer. Results: Significant volume loss of the nucleus accumbens was observed in the PDICD(+) group. Several areas of significant cortical thinning were observed in the PDICD(+) group in comparison PDICD(−) group. Thinning of the left middle temporal gyrus, transverse temporal gyrus, and bilateral temporal poles was observed in the PDICD(+) group. No correlations were observed between QUIP-RS scores and areas of cortical thinning. Conclusions: The PDICD(+) group has specific neuroanatomical variations in the nucleus accumbens and temporal lobes, which may contribute to the development of ICD and perhaps predispose a patient to ICDs on exposure to dopamine replacement therapy.
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spelling doaj.art-5c099b46d7fe4a5d9cc13464a576358c2022-12-21T22:37:41ZengWolters Kluwer Medknow PublicationsAnnals of Indian Academy of Neurology0972-23271998-35492019-01-0122442643110.4103/aian.AIAN_325_18Abnormal subcortical volumes and cortical thickness in Parkinson's disease with impulse control disordersShweta PrasadVenkateswara Reddy ReddamAlbert StezinRavi YadavJitender SainiPramod Kumar PalBackground: The occurrence of impulse control disorders (ICDs) in Parkinson's disease (PD) is frequently attributed to dopamine replacement therapy. However, not all patients who receive medication develop ICDs. Recent imaging studies have suggested specific neuroanatomical abnormalities in patients with PD and ICD. Objectives: This study aims to identify changes in volumes of subcortical structures and cortical thickness specific to patients with PD and ICDs. Methodology: A total of 11 patients with PD and ICD (PDICD(+)), 15 patients with PD without ICD (PDICD(−)), and 15 healthy controls were analyzed in this study. ICDs were diagnosed and quantified using the Questionnaire for Impulsive-Compulsive Disorders in PD-Rating Scale (QUIP-RS). Structural imaging was performed on a 3T scanner; volumes of subcortical structures and cortical thickness were obtained using first in FSL and FreeSurfer. Results: Significant volume loss of the nucleus accumbens was observed in the PDICD(+) group. Several areas of significant cortical thinning were observed in the PDICD(+) group in comparison PDICD(−) group. Thinning of the left middle temporal gyrus, transverse temporal gyrus, and bilateral temporal poles was observed in the PDICD(+) group. No correlations were observed between QUIP-RS scores and areas of cortical thinning. Conclusions: The PDICD(+) group has specific neuroanatomical variations in the nucleus accumbens and temporal lobes, which may contribute to the development of ICD and perhaps predispose a patient to ICDs on exposure to dopamine replacement therapy.http://www.annalsofian.org/article.asp?issn=0972-2327;year=2019;volume=22;issue=4;spage=426;epage=431;aulast=cortical thicknessimpulse control disorderparkinson's diseasesubcortical volumetry
spellingShingle Shweta Prasad
Venkateswara Reddy Reddam
Albert Stezin
Ravi Yadav
Jitender Saini
Pramod Kumar Pal
Abnormal subcortical volumes and cortical thickness in Parkinson's disease with impulse control disorders
Annals of Indian Academy of Neurology
cortical thickness
impulse control disorder
parkinson's disease
subcortical volumetry
title Abnormal subcortical volumes and cortical thickness in Parkinson's disease with impulse control disorders
title_full Abnormal subcortical volumes and cortical thickness in Parkinson's disease with impulse control disorders
title_fullStr Abnormal subcortical volumes and cortical thickness in Parkinson's disease with impulse control disorders
title_full_unstemmed Abnormal subcortical volumes and cortical thickness in Parkinson's disease with impulse control disorders
title_short Abnormal subcortical volumes and cortical thickness in Parkinson's disease with impulse control disorders
title_sort abnormal subcortical volumes and cortical thickness in parkinson s disease with impulse control disorders
topic cortical thickness
impulse control disorder
parkinson's disease
subcortical volumetry
url http://www.annalsofian.org/article.asp?issn=0972-2327;year=2019;volume=22;issue=4;spage=426;epage=431;aulast=
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