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Copper and zinc isotopic excursions in the human brain affected by Alzheimer's disease
INTRODUCTION: Alzheimer's disease (AD) is neuropathologically marked by amyloid beta (Aβ) plaques and neurofibrillary tangles. Little is known about isotopic compositions of human AD brains. Here we study this in comparison with control subjects for copper and zinc. METHODS: We use mass‐spectro...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7571480/ https://www.ncbi.nlm.nih.gov/pubmed/33102682 http://dx.doi.org/10.1002/dad2.12112 |
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author | Moynier, Frédéric Borgne, Marie Le Lahoud, Esther Mahan, Brandon Mouton‐Liger, Francois Hugon, Jacques Paquet, Claire |
author_facet | Moynier, Frédéric Borgne, Marie Le Lahoud, Esther Mahan, Brandon Mouton‐Liger, Francois Hugon, Jacques Paquet, Claire |
author_sort | Moynier, Frédéric |
collection | PubMed |
description | INTRODUCTION: Alzheimer's disease (AD) is neuropathologically marked by amyloid beta (Aβ) plaques and neurofibrillary tangles. Little is known about isotopic compositions of human AD brains. Here we study this in comparison with control subjects for copper and zinc. METHODS: We use mass‐spectrometry methods, developed to study extraterrestrial materials, to compare the copper and zinc isotopic composition of 10 AD and 10 control brains. RESULTS: Copper and zinc natural isotopic compositions of AD brains are statistically different compared to controls, and correlate with Braak stages. DISCUSSION: The distribution of natural copper and zinc isotopes in AD is not affected by the diet, but is a consequence of Aβ plaques and tau fibril accumulation. This is well predicted by the changes of the chemical bonding environment caused by the development of Aβ lesions and accumulation of tau proteins. Future work will involve testing whether these changes affect brain functions and are propagated to body fluids. |
format | Online Article Text |
id | pubmed-7571480 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-75714802020-10-23 Copper and zinc isotopic excursions in the human brain affected by Alzheimer's disease Moynier, Frédéric Borgne, Marie Le Lahoud, Esther Mahan, Brandon Mouton‐Liger, Francois Hugon, Jacques Paquet, Claire Alzheimers Dement (Amst) Diagnostic Assessment & Prognosis INTRODUCTION: Alzheimer's disease (AD) is neuropathologically marked by amyloid beta (Aβ) plaques and neurofibrillary tangles. Little is known about isotopic compositions of human AD brains. Here we study this in comparison with control subjects for copper and zinc. METHODS: We use mass‐spectrometry methods, developed to study extraterrestrial materials, to compare the copper and zinc isotopic composition of 10 AD and 10 control brains. RESULTS: Copper and zinc natural isotopic compositions of AD brains are statistically different compared to controls, and correlate with Braak stages. DISCUSSION: The distribution of natural copper and zinc isotopes in AD is not affected by the diet, but is a consequence of Aβ plaques and tau fibril accumulation. This is well predicted by the changes of the chemical bonding environment caused by the development of Aβ lesions and accumulation of tau proteins. Future work will involve testing whether these changes affect brain functions and are propagated to body fluids. John Wiley and Sons Inc. 2020-10-19 /pmc/articles/PMC7571480/ /pubmed/33102682 http://dx.doi.org/10.1002/dad2.12112 Text en © 2020 The Authors. Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring published by Wiley Periodicals, LLC on behalf of Alzheimer's Association https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
spellingShingle | Diagnostic Assessment & Prognosis Moynier, Frédéric Borgne, Marie Le Lahoud, Esther Mahan, Brandon Mouton‐Liger, Francois Hugon, Jacques Paquet, Claire Copper and zinc isotopic excursions in the human brain affected by Alzheimer's disease |
title | Copper and zinc isotopic excursions in the human brain affected by Alzheimer's disease |
title_full | Copper and zinc isotopic excursions in the human brain affected by Alzheimer's disease |
title_fullStr | Copper and zinc isotopic excursions in the human brain affected by Alzheimer's disease |
title_full_unstemmed | Copper and zinc isotopic excursions in the human brain affected by Alzheimer's disease |
title_short | Copper and zinc isotopic excursions in the human brain affected by Alzheimer's disease |
title_sort | copper and zinc isotopic excursions in the human brain affected by alzheimer's disease |
topic | Diagnostic Assessment & Prognosis |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7571480/ https://www.ncbi.nlm.nih.gov/pubmed/33102682 http://dx.doi.org/10.1002/dad2.12112 |
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