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In vivo network models identify sex differences in the spread of tau pathology across the brain

INTRODUCTION: We examined networks of tau connectivity between brain regions based on correlations of their [(18)F]flortaucipir positron emission tomography (PET) uptake to evaluate sex‐specific differences in brain‐wide tau propagation. METHODS: PET data of clinically normal and mild cognitive impa...

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Autores principales: Shokouhi, Sepideh, Taylor, Warren D., Albert, Kimberly, Kang, Hakmook, Newhouse, Paul A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7144772/
https://www.ncbi.nlm.nih.gov/pubmed/32280740
http://dx.doi.org/10.1002/dad2.12016
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author Shokouhi, Sepideh
Taylor, Warren D.
Albert, Kimberly
Kang, Hakmook
Newhouse, Paul A.
author_facet Shokouhi, Sepideh
Taylor, Warren D.
Albert, Kimberly
Kang, Hakmook
Newhouse, Paul A.
author_sort Shokouhi, Sepideh
collection PubMed
description INTRODUCTION: We examined networks of tau connectivity between brain regions based on correlations of their [(18)F]flortaucipir positron emission tomography (PET) uptake to evaluate sex‐specific differences in brain‐wide tau propagation. METHODS: PET data of clinically normal and mild cognitive impairment (MCI) subjects from the Alzheimer's Disease Neuroimaging Initiative (ADNI) were used to examine differences in network architectures across the groups. RESULTS: The tau‐based network architecture resembled progression of tauopathy from Braak stage I to VI regions. Compared to men, women had higher network density and an increased number of direct regional connections in co‐occurrence with increased brain‐wide tau burden, particularly at MCI. Several regions, including superior parietal lobe and parahippocampus served as connecting bridges between communities at different Braak stages. DISCUSSION: Network characteristics in women may favor an accelerated brain‐wide tau spread leading to a higher tau burden in women than men with MCI with implications for the greater female preponderance in Alzheimer's disease diagnosis.
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spelling pubmed-71447722020-04-10 In vivo network models identify sex differences in the spread of tau pathology across the brain Shokouhi, Sepideh Taylor, Warren D. Albert, Kimberly Kang, Hakmook Newhouse, Paul A. Alzheimers Dement (Amst) Neuroimaging INTRODUCTION: We examined networks of tau connectivity between brain regions based on correlations of their [(18)F]flortaucipir positron emission tomography (PET) uptake to evaluate sex‐specific differences in brain‐wide tau propagation. METHODS: PET data of clinically normal and mild cognitive impairment (MCI) subjects from the Alzheimer's Disease Neuroimaging Initiative (ADNI) were used to examine differences in network architectures across the groups. RESULTS: The tau‐based network architecture resembled progression of tauopathy from Braak stage I to VI regions. Compared to men, women had higher network density and an increased number of direct regional connections in co‐occurrence with increased brain‐wide tau burden, particularly at MCI. Several regions, including superior parietal lobe and parahippocampus served as connecting bridges between communities at different Braak stages. DISCUSSION: Network characteristics in women may favor an accelerated brain‐wide tau spread leading to a higher tau burden in women than men with MCI with implications for the greater female preponderance in Alzheimer's disease diagnosis. John Wiley and Sons Inc. 2020-04-09 /pmc/articles/PMC7144772/ /pubmed/32280740 http://dx.doi.org/10.1002/dad2.12016 Text en © 2020 The Authors. Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring published by Wiley Periodicals, Inc. on behalf of the Alzheimer's Association. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Neuroimaging
Shokouhi, Sepideh
Taylor, Warren D.
Albert, Kimberly
Kang, Hakmook
Newhouse, Paul A.
In vivo network models identify sex differences in the spread of tau pathology across the brain
title In vivo network models identify sex differences in the spread of tau pathology across the brain
title_full In vivo network models identify sex differences in the spread of tau pathology across the brain
title_fullStr In vivo network models identify sex differences in the spread of tau pathology across the brain
title_full_unstemmed In vivo network models identify sex differences in the spread of tau pathology across the brain
title_short In vivo network models identify sex differences in the spread of tau pathology across the brain
title_sort in vivo network models identify sex differences in the spread of tau pathology across the brain
topic Neuroimaging
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7144772/
https://www.ncbi.nlm.nih.gov/pubmed/32280740
http://dx.doi.org/10.1002/dad2.12016
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