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Open Access 01-02-2017 | Review

Review of functional MRI in HIV: effects of aging and medication

Authors: C. S. Hakkers, J. E. Arends, R. E. Barth, S. Du Plessis, A. I. M. Hoepelman, M. Vink

Published in: Journal of NeuroVirology | Issue 1/2017

Abstract

HIV-associated neurocognitive disorder (HAND) is a frequently occurring comorbidity of HIV infection. Evidence suggests this condition starts subclinical before a progression to a symptomatic stage. Blood oxygenated level dependent (BOLD) fMRI has shown to be a sensitive tool to detect abnormal brain function in an early stage and might therefore be useful to evaluate the effect of HIV infection on brain function. An extensive literature search was performed in June 2015. Eligibility criteria for included studies were as follows: (1) conducting with HIV-positive patients, (2) using BOLD fMRI, and (3) including a HIV-negative control group. A total of 19 studies were included in the review including 931 participants. Differences in activation between HIV-positive and -negative participants were found when testing multiple domains, i.e., attention, (working) memory, and especially executive functioning. Overall, HIV-positive patients showed hyperactivation in task-related brain regions despite equal performances as controls. Task performance was degraded only for the most complex tasks. A few studies investigated the effect of aging on fMRI, and most of them found no interaction with HIV infection. Only three studies evaluated the effect of combination antiretroviral therapy (cART) on functional data suggesting an increase in activation with the use of cART. fMRI is a sensitive instrument to detect subtle cognitive changes in HIV patients. Open questions remain regarding the effects of cART on fMRI and the effects of aging on fMRI.

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Title: Review of functional MRI in HIV: effects of aging and medication
Authors: C. S. Hakkers
J. E. Arends
R. E. Barth
S. Du Plessis
A. I. M. Hoepelman
M. Vink
Publication date: 01-02-2017
Publisher: Springer International Publishing
Published in: Journal of NeuroVirology / Issue 1/2017
Print ISSN: 1355-0284
Electronic ISSN: 1538-2443
DOI: https://doi.org/10.1007/s13365-016-0483-y

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Review of functional MRI in HIV: effects of aging and medication

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Keynote webinar | Spotlight on sleep in brain health

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