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Case Report: Usefulness of Biomarkers for Alzheimer's Disease in Two Cases With Very-Late-Onset Schizophrenia-Like Psychosis

The association between primary psychotic disorders emerging in later life and neurodegenerative diseases, including Alzheimer's disease (AD), is controversial. We present two female non-demented cases of psychosis with onset above the age of 60 years. Cases 1 and 2 were aged was 68 and 81 year...

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Autores principales: Satake, Yuto, Kanemoto, Hideki, Yoshiyama, Kenji, Nakahama, Ryoko, Matsunaga, Keiko, Shimosegawa, Eku, Morihara, Takashi, Hashimoto, Mamoru, Ikeda, Manabu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8477662/
https://www.ncbi.nlm.nih.gov/pubmed/34594255
http://dx.doi.org/10.3389/fpsyt.2021.742659
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author Satake, Yuto
Kanemoto, Hideki
Yoshiyama, Kenji
Nakahama, Ryoko
Matsunaga, Keiko
Shimosegawa, Eku
Morihara, Takashi
Hashimoto, Mamoru
Ikeda, Manabu
author_facet Satake, Yuto
Kanemoto, Hideki
Yoshiyama, Kenji
Nakahama, Ryoko
Matsunaga, Keiko
Shimosegawa, Eku
Morihara, Takashi
Hashimoto, Mamoru
Ikeda, Manabu
author_sort Satake, Yuto
collection PubMed
description The association between primary psychotic disorders emerging in later life and neurodegenerative diseases, including Alzheimer's disease (AD), is controversial. We present two female non-demented cases of psychosis with onset above the age of 60 years. Cases 1 and 2 were aged was 68 and 81 years, respectively. They suffered from persecutory delusions and scored 28 on the Mini-Mental State Examination (MMSE) at the first examination. Although detailed neuropsychological tests detected amnesia, they had preserved daily life function. Brain magnetic resonance imaging, N-isopropyl-p-[123I] iodoamphetamine (123I-IMP) single-photon emission computed tomography, and cardiac [123I]-metaiodobenzylguanidine (123I-MIBG) scintigraphy showed no specific abnormalities in either case. We diagnosed them with very-late-onset schizophrenia-like psychosis (VLOSLP) because there was no evidence that their psychoses were derived from organic diseases or affective disorders. Upon close inspection, the AD biomarkers, cerebrospinal fluid (CSF) testing and Florbetapir F 18 positron emission tomography (PET), were positive in Case 1 and negative in Case 2. Case 1 scored 25 1 year later and 23 2 years later on the MMSE and was finally diagnosed as AD dementia. These two cases suggest that some clinically diagnosed VLOSLPs may be a prodromal AD. Although VLOSLP is a disease entity supposed to be a primary psychotic disorder, some are probably secondary psychosis with insidious neurodegeneration. Advanced biomarkers such as amyloid PET and CSF may contribute to the detection of secondary psychosis from clinically diagnosed VLOSLP.
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spelling pubmed-84776622021-09-29 Case Report: Usefulness of Biomarkers for Alzheimer's Disease in Two Cases With Very-Late-Onset Schizophrenia-Like Psychosis Satake, Yuto Kanemoto, Hideki Yoshiyama, Kenji Nakahama, Ryoko Matsunaga, Keiko Shimosegawa, Eku Morihara, Takashi Hashimoto, Mamoru Ikeda, Manabu Front Psychiatry Psychiatry The association between primary psychotic disorders emerging in later life and neurodegenerative diseases, including Alzheimer's disease (AD), is controversial. We present two female non-demented cases of psychosis with onset above the age of 60 years. Cases 1 and 2 were aged was 68 and 81 years, respectively. They suffered from persecutory delusions and scored 28 on the Mini-Mental State Examination (MMSE) at the first examination. Although detailed neuropsychological tests detected amnesia, they had preserved daily life function. Brain magnetic resonance imaging, N-isopropyl-p-[123I] iodoamphetamine (123I-IMP) single-photon emission computed tomography, and cardiac [123I]-metaiodobenzylguanidine (123I-MIBG) scintigraphy showed no specific abnormalities in either case. We diagnosed them with very-late-onset schizophrenia-like psychosis (VLOSLP) because there was no evidence that their psychoses were derived from organic diseases or affective disorders. Upon close inspection, the AD biomarkers, cerebrospinal fluid (CSF) testing and Florbetapir F 18 positron emission tomography (PET), were positive in Case 1 and negative in Case 2. Case 1 scored 25 1 year later and 23 2 years later on the MMSE and was finally diagnosed as AD dementia. These two cases suggest that some clinically diagnosed VLOSLPs may be a prodromal AD. Although VLOSLP is a disease entity supposed to be a primary psychotic disorder, some are probably secondary psychosis with insidious neurodegeneration. Advanced biomarkers such as amyloid PET and CSF may contribute to the detection of secondary psychosis from clinically diagnosed VLOSLP. Frontiers Media S.A. 2021-09-14 /pmc/articles/PMC8477662/ /pubmed/34594255 http://dx.doi.org/10.3389/fpsyt.2021.742659 Text en Copyright © 2021 Satake, Kanemoto, Yoshiyama, Nakahama, Matsunaga, Shimosegawa, Morihara, Hashimoto and Ikeda. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Psychiatry
Satake, Yuto
Kanemoto, Hideki
Yoshiyama, Kenji
Nakahama, Ryoko
Matsunaga, Keiko
Shimosegawa, Eku
Morihara, Takashi
Hashimoto, Mamoru
Ikeda, Manabu
Case Report: Usefulness of Biomarkers for Alzheimer's Disease in Two Cases With Very-Late-Onset Schizophrenia-Like Psychosis
title Case Report: Usefulness of Biomarkers for Alzheimer's Disease in Two Cases With Very-Late-Onset Schizophrenia-Like Psychosis
title_full Case Report: Usefulness of Biomarkers for Alzheimer's Disease in Two Cases With Very-Late-Onset Schizophrenia-Like Psychosis
title_fullStr Case Report: Usefulness of Biomarkers for Alzheimer's Disease in Two Cases With Very-Late-Onset Schizophrenia-Like Psychosis
title_full_unstemmed Case Report: Usefulness of Biomarkers for Alzheimer's Disease in Two Cases With Very-Late-Onset Schizophrenia-Like Psychosis
title_short Case Report: Usefulness of Biomarkers for Alzheimer's Disease in Two Cases With Very-Late-Onset Schizophrenia-Like Psychosis
title_sort case report: usefulness of biomarkers for alzheimer's disease in two cases with very-late-onset schizophrenia-like psychosis
topic Psychiatry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8477662/
https://www.ncbi.nlm.nih.gov/pubmed/34594255
http://dx.doi.org/10.3389/fpsyt.2021.742659
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