A Longitudinal SPECT Study of Different Patterns of Regional Cerebral Blood Flow in Alzheimer’s Disease with or without Diabetes

Aims: To determine the effect of diabetes mellitus (DM) on regional cerebral blood flow (rCBF) patterns in patients with Alzheimer’s disease (AD). Methods: We investigated the initial rCBF of 71 AD patients (36 without DM and 35 with DM) and the final rCBF of 23 AD patients (12 without DM and 11 wit...

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Main Authors: Kentaro Hirao, Haruo Hanyu, Tomohiko Sato, Hidekazu Kanetaka, Soichiro Shimizu, Hirofumi Sakurai, Toshihiko Iwamoto
Format: Article
Language:English
Published: Karger Publishers 2011-01-01
Series:Dementia and Geriatric Cognitive Disorders Extra
Subjects:
Online Access:http://www.karger.com/Article/FullText/323865
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author Kentaro Hirao
Haruo Hanyu
Tomohiko Sato
Hidekazu Kanetaka
Soichiro Shimizu
Hirofumi Sakurai
Toshihiko Iwamoto
author_facet Kentaro Hirao
Haruo Hanyu
Tomohiko Sato
Hidekazu Kanetaka
Soichiro Shimizu
Hirofumi Sakurai
Toshihiko Iwamoto
author_sort Kentaro Hirao
collection DOAJ
description Aims: To determine the effect of diabetes mellitus (DM) on regional cerebral blood flow (rCBF) patterns in patients with Alzheimer’s disease (AD). Methods: We investigated the initial rCBF of 71 AD patients (36 without DM and 35 with DM) and the final rCBF of 23 AD patients (12 without DM and 11 with DM) after an average of 32 months. Single-photon emission computed tomography (SPECT) data were analyzed by statistical brain imaging. Results: The initial SPECT showed that AD patients without DM had lower rCBF in the left and right inferior temporal gyri than AD patients with DM. A follow-up SPECT demonstrated that rCBF decreased in more widespread regions, including the parietal, temporal, frontal, and limbic lobes, in AD patients without than with DM. Conclusion: This study suggests that functional brain abnormalities in AD differ depending on the DM status at baseline and during follow-up, reflecting neuropathologic differences.
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spelling doaj.art-50a7f9b809b14a8bac66a15f498ba8612022-12-21T20:31:28ZengKarger PublishersDementia and Geriatric Cognitive Disorders Extra1664-54642011-01-0111627410.1159/000323865323865A Longitudinal SPECT Study of Different Patterns of Regional Cerebral Blood Flow in Alzheimer’s Disease with or without DiabetesKentaro HiraoHaruo HanyuTomohiko SatoHidekazu KanetakaSoichiro ShimizuHirofumi SakuraiToshihiko IwamotoAims: To determine the effect of diabetes mellitus (DM) on regional cerebral blood flow (rCBF) patterns in patients with Alzheimer’s disease (AD). Methods: We investigated the initial rCBF of 71 AD patients (36 without DM and 35 with DM) and the final rCBF of 23 AD patients (12 without DM and 11 with DM) after an average of 32 months. Single-photon emission computed tomography (SPECT) data were analyzed by statistical brain imaging. Results: The initial SPECT showed that AD patients without DM had lower rCBF in the left and right inferior temporal gyri than AD patients with DM. A follow-up SPECT demonstrated that rCBF decreased in more widespread regions, including the parietal, temporal, frontal, and limbic lobes, in AD patients without than with DM. Conclusion: This study suggests that functional brain abnormalities in AD differ depending on the DM status at baseline and during follow-up, reflecting neuropathologic differences.http://www.karger.com/Article/FullText/323865Alzheimerߣs diseaseDiabetes mellitusRegional cerebral blood flowSPECT
spellingShingle Kentaro Hirao
Haruo Hanyu
Tomohiko Sato
Hidekazu Kanetaka
Soichiro Shimizu
Hirofumi Sakurai
Toshihiko Iwamoto
A Longitudinal SPECT Study of Different Patterns of Regional Cerebral Blood Flow in Alzheimer’s Disease with or without Diabetes
Dementia and Geriatric Cognitive Disorders Extra
Alzheimerߣs disease
Diabetes mellitus
Regional cerebral blood flow
SPECT
title A Longitudinal SPECT Study of Different Patterns of Regional Cerebral Blood Flow in Alzheimer’s Disease with or without Diabetes
title_full A Longitudinal SPECT Study of Different Patterns of Regional Cerebral Blood Flow in Alzheimer’s Disease with or without Diabetes
title_fullStr A Longitudinal SPECT Study of Different Patterns of Regional Cerebral Blood Flow in Alzheimer’s Disease with or without Diabetes
title_full_unstemmed A Longitudinal SPECT Study of Different Patterns of Regional Cerebral Blood Flow in Alzheimer’s Disease with or without Diabetes
title_short A Longitudinal SPECT Study of Different Patterns of Regional Cerebral Blood Flow in Alzheimer’s Disease with or without Diabetes
title_sort longitudinal spect study of different patterns of regional cerebral blood flow in alzheimer s disease with or without diabetes
topic Alzheimerߣs disease
Diabetes mellitus
Regional cerebral blood flow
SPECT
url http://www.karger.com/Article/FullText/323865
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