Is intracranial volume a suitable proxy for brain reserve?

Abstract Background Brain reserve is a concept introduced to explain why Alzheimer’s disease (AD) patients with a greater brain volume prior to onset of pathology generally have better clinical outcomes. In this review, we provide a historical background of the emergence of brain reserve and discuss...

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Main Authors: Anna Catharina van Loenhoud, Colin Groot, Jacob William Vogel, Wiesje Maria van der Flier, Rik Ossenkoppele
Format: Article
Language:English
Published: BMC 2018-09-01
Series:Alzheimer’s Research & Therapy
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13195-018-0408-5
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author Anna Catharina van Loenhoud
Colin Groot
Jacob William Vogel
Wiesje Maria van der Flier
Rik Ossenkoppele
author_facet Anna Catharina van Loenhoud
Colin Groot
Jacob William Vogel
Wiesje Maria van der Flier
Rik Ossenkoppele
author_sort Anna Catharina van Loenhoud
collection DOAJ
description Abstract Background Brain reserve is a concept introduced to explain why Alzheimer’s disease (AD) patients with a greater brain volume prior to onset of pathology generally have better clinical outcomes. In this review, we provide a historical background of the emergence of brain reserve and discuss several aspects that need further clarification, including the dynamic or static nature of the concept and its underlying mechanisms and clinical effect. We then describe how brain reserve has been operationalized over the years, and critically evaluate the use of intracranial volume (ICV) as the most widely used proxy for brain reserve. Furthermore, we perform a meta-analysis showing that ICV is associated with higher cognitive performance after adjusting for the presence and amount of pathology. Although we acknowledge its imperfections, we conclude that the use of ICV as a proxy for brain reserve is currently warranted. However, further development of more optimal measures of brain reserve as well as a more clearly defined theoretical framework is essential.
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spelling doaj.art-19e09526aaa143febfe630a4590030e52022-12-22T01:12:34ZengBMCAlzheimer’s Research & Therapy1758-91932018-09-0110111210.1186/s13195-018-0408-5Is intracranial volume a suitable proxy for brain reserve?Anna Catharina van Loenhoud0Colin Groot1Jacob William Vogel2Wiesje Maria van der Flier3Rik Ossenkoppele4Department of Neurology and Alzheimer Center, Neuroscience Campus Amsterdam, VU University Medical CenterDepartment of Neurology and Alzheimer Center, Neuroscience Campus Amsterdam, VU University Medical CenterDepartment of Neurology and Alzheimer Center, Neuroscience Campus Amsterdam, VU University Medical CenterDepartment of Neurology and Alzheimer Center, Neuroscience Campus Amsterdam, VU University Medical CenterDepartment of Neurology and Alzheimer Center, Neuroscience Campus Amsterdam, VU University Medical CenterAbstract Background Brain reserve is a concept introduced to explain why Alzheimer’s disease (AD) patients with a greater brain volume prior to onset of pathology generally have better clinical outcomes. In this review, we provide a historical background of the emergence of brain reserve and discuss several aspects that need further clarification, including the dynamic or static nature of the concept and its underlying mechanisms and clinical effect. We then describe how brain reserve has been operationalized over the years, and critically evaluate the use of intracranial volume (ICV) as the most widely used proxy for brain reserve. Furthermore, we perform a meta-analysis showing that ICV is associated with higher cognitive performance after adjusting for the presence and amount of pathology. Although we acknowledge its imperfections, we conclude that the use of ICV as a proxy for brain reserve is currently warranted. However, further development of more optimal measures of brain reserve as well as a more clearly defined theoretical framework is essential.http://link.springer.com/article/10.1186/s13195-018-0408-5Brain reserveIntracranial volumeAlzheimer’s diseaseDementiaMRIResilience
spellingShingle Anna Catharina van Loenhoud
Colin Groot
Jacob William Vogel
Wiesje Maria van der Flier
Rik Ossenkoppele
Is intracranial volume a suitable proxy for brain reserve?
Alzheimer’s Research & Therapy
Brain reserve
Intracranial volume
Alzheimer’s disease
Dementia
MRI
Resilience
title Is intracranial volume a suitable proxy for brain reserve?
title_full Is intracranial volume a suitable proxy for brain reserve?
title_fullStr Is intracranial volume a suitable proxy for brain reserve?
title_full_unstemmed Is intracranial volume a suitable proxy for brain reserve?
title_short Is intracranial volume a suitable proxy for brain reserve?
title_sort is intracranial volume a suitable proxy for brain reserve
topic Brain reserve
Intracranial volume
Alzheimer’s disease
Dementia
MRI
Resilience
url http://link.springer.com/article/10.1186/s13195-018-0408-5
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