Serotonergic deficits in dementia with Lewy bodies with concomitant Alzheimer's disease pathology: An 123I-FP-CIT SPECT study

Purpose: To study the influence of concomitant Alzheimer's disease (AD) pathology in dementia with Lewy bodies (DLB) on dopamine transporter (DAT) and serotonin transporter (SERT) availability, using 123I-N-ω-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl) nortropane (123I-FP-CIT) single photon...

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Main Authors: J.J. van der Zande, M. Joling, I.G. Happach, C. Vriend, Ph. Scheltens, J. Booij, A.W. Lemstra
Format: Article
Language:English
Published: Elsevier 2020-01-01
Series:NeuroImage: Clinical
Online Access:http://www.sciencedirect.com/science/article/pii/S2213158219304097
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author J.J. van der Zande
M. Joling
I.G. Happach
C. Vriend
Ph. Scheltens
J. Booij
A.W. Lemstra
author_facet J.J. van der Zande
M. Joling
I.G. Happach
C. Vriend
Ph. Scheltens
J. Booij
A.W. Lemstra
author_sort J.J. van der Zande
collection DOAJ
description Purpose: To study the influence of concomitant Alzheimer's disease (AD) pathology in dementia with Lewy bodies (DLB) on dopamine transporter (DAT) and serotonin transporter (SERT) availability, using 123I-N-ω-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl) nortropane (123I-FP-CIT) single photon emission computed tomography (SPECT). Methods: Based on their cerebrospinal fluid biomarker profile, fifty-two patients with probable DLB were divided in a group with (DLB/AD+, N = 15) and without concomitant AD-pathology (DLB/AD-, N = 37). We conducted atrophy-corrected region of interest (ROI) analyses comparing binding ratios (BRs) in the DAT-rich striatal and SERT-rich extrastriatal brain areas (amygdala, hippocampus, thalamus, midbrain and pons). Results: DLB/AD+ patients had significantly lower 123I-FP-CIT BRs in the left amygdala, and a trend was seen in the right hippocampus. Groups did not differ significantly in striatal 123I-FP-CIT BRs, neuropsychiatric or motor symptoms. Motor symptoms correlated negatively with striatal DAT BRs. Conclusions: DLB/AD+ patients may have lower SERT binding in limbic brain regions than DLB/AD- patients, possibly indicating faster neurodegeneration in mixed pathology. Keywords: Dementia with Lewy bodies, Alzheime’s disease, Dopamine transporter, Serotonin transporter, 123I-FP-CIT SPECT
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spelling doaj.art-09d9aa1ea898495d9b2045a7632659bb2022-12-22T01:56:28ZengElsevierNeuroImage: Clinical2213-15822020-01-0125Serotonergic deficits in dementia with Lewy bodies with concomitant Alzheimer's disease pathology: An 123I-FP-CIT SPECT studyJ.J. van der Zande0M. Joling1I.G. Happach2C. Vriend3Ph. Scheltens4J. Booij5A.W. Lemstra6Amsterdam UMC, Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit, Amsterdam, the Netherlands; Corresponding author. Alzheimer Center Amsterdam, Amsterdam UMC de Boelelaan 1118 1081 HZ Amsterdam, the NetherlandsAmsterdam UMC, Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit, Amsterdam, the Netherlands; Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Anatomy & Neurosciences, Amsterdam Neuroscience, De Boelelaan 1117, Amsterdam, the NetherlandsAmsterdam UMC, Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit, Amsterdam, the NetherlandsAmsterdam UMC, Vrije Universiteit Amsterdam, Department of Anatomy & Neurosciences, Amsterdam Neuroscience, De Boelelaan 1117, Amsterdam, the Netherlands; Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, De Boelelaan 1117, Amsterdam, the NetherlandsAmsterdam UMC, Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit, Amsterdam, the NetherlandsAmsterdam UMC, Academic Medical Center, Department of Radiology and Nuclear Medicine, Amsterdam, the NetherlandsAmsterdam UMC, Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit, Amsterdam, the NetherlandsPurpose: To study the influence of concomitant Alzheimer's disease (AD) pathology in dementia with Lewy bodies (DLB) on dopamine transporter (DAT) and serotonin transporter (SERT) availability, using 123I-N-ω-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl) nortropane (123I-FP-CIT) single photon emission computed tomography (SPECT). Methods: Based on their cerebrospinal fluid biomarker profile, fifty-two patients with probable DLB were divided in a group with (DLB/AD+, N = 15) and without concomitant AD-pathology (DLB/AD-, N = 37). We conducted atrophy-corrected region of interest (ROI) analyses comparing binding ratios (BRs) in the DAT-rich striatal and SERT-rich extrastriatal brain areas (amygdala, hippocampus, thalamus, midbrain and pons). Results: DLB/AD+ patients had significantly lower 123I-FP-CIT BRs in the left amygdala, and a trend was seen in the right hippocampus. Groups did not differ significantly in striatal 123I-FP-CIT BRs, neuropsychiatric or motor symptoms. Motor symptoms correlated negatively with striatal DAT BRs. Conclusions: DLB/AD+ patients may have lower SERT binding in limbic brain regions than DLB/AD- patients, possibly indicating faster neurodegeneration in mixed pathology. Keywords: Dementia with Lewy bodies, Alzheime’s disease, Dopamine transporter, Serotonin transporter, 123I-FP-CIT SPECThttp://www.sciencedirect.com/science/article/pii/S2213158219304097
spellingShingle J.J. van der Zande
M. Joling
I.G. Happach
C. Vriend
Ph. Scheltens
J. Booij
A.W. Lemstra
Serotonergic deficits in dementia with Lewy bodies with concomitant Alzheimer's disease pathology: An 123I-FP-CIT SPECT study
NeuroImage: Clinical
title Serotonergic deficits in dementia with Lewy bodies with concomitant Alzheimer's disease pathology: An 123I-FP-CIT SPECT study
title_full Serotonergic deficits in dementia with Lewy bodies with concomitant Alzheimer's disease pathology: An 123I-FP-CIT SPECT study
title_fullStr Serotonergic deficits in dementia with Lewy bodies with concomitant Alzheimer's disease pathology: An 123I-FP-CIT SPECT study
title_full_unstemmed Serotonergic deficits in dementia with Lewy bodies with concomitant Alzheimer's disease pathology: An 123I-FP-CIT SPECT study
title_short Serotonergic deficits in dementia with Lewy bodies with concomitant Alzheimer's disease pathology: An 123I-FP-CIT SPECT study
title_sort serotonergic deficits in dementia with lewy bodies with concomitant alzheimer s disease pathology an 123i fp cit spect study
url http://www.sciencedirect.com/science/article/pii/S2213158219304097
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