Evidence map›Paper›PMID 34382273›Full record

ArticleHuman brain mapping2021

Human immunodeficiency virus-related decreases in corpus callosal integrity and corresponding increases in functional connectivity.

Shana A Hall, Ryan P Bell, Simon W Davis, Sheri L Towe, Taylor P Ikner, Christina S Meade

Open access · goldAbstract read
In one paragraph

Article in Human brain mapping, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Shana A HallDepartment of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina, USA.ORCID 0000-0001-9686-8549
Ryan P BellDepartment of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina, USA.
Simon W DavisDepartment of Neurology, Duke University School of Medicine, Durham, North Carolina, USA.ORCID 0000-0002-5943-0756
Sheri L ToweDepartment of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina, USA.ORCID 0000-0002-3447-5384
Taylor P IknerDepartment of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina, USA.
Christina S MeadeDepartment of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina, USA.ORCID 0000-0002-0864-1123
Duke University · US

Funding

Social and Behavioral Sciences CoreP30AI064518 · NIAID · DUKE UNIVERSITY · PI Nwora Lance Okeke · 2005 to 2026
$50.5M
MRI data fusion to investigate effects of drug abuse on HIV neurological complicationsR01DA045565 · NIDA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI MEADE, CHRISTINA S · 2018 to 2022
$2.0M
NIAID NIH HHS P30 AI064518NIDA NIH HHS R01 DA045565NIH HHS R01-DA-45565
6 · The paper itself

Abstract

People living with human immunodeficiency virus (PLWH) often have neurocognitive impairment. However, findings on HIV-related differences in brain network function underlying these impairments are inconsistent. One principle frequently absent from these reports is that brain function is largely emergent from brain structure. PLWH commonly have degraded white matter; we hypothesized that functional communities connected by degraded white matter tracts would show abnormal functional connectivity. We measured white matter integrity in 69 PLWH and 67 controls using fractional anisotropy (FA) in 24 intracerebral white matter tracts. Then, among tracts with degraded FA, we identified gray matter regions connected to these tracts and measured their functional connectivity during rest. Finally, we identified cognitive impairment related to these structural and functional connectivity systems. We found HIV-related decreased FA in the corpus callosum body (CCb), which coordinates activity between the left and right hemispheres, and corresponding increases in functional connectivity. Finally, we found that individuals with impaired cognitive functioning have lower CCb FA and higher CCb functional connectivity. This result clarifies the functional relevance of the corpus callosum in HIV and provides a framework in which abnormal brain function can be understood in the context of abnormal brain structure, which may both contribute to cognitive impairment.

Indexed as

ConnectomeDiffusion Tensor ImagingAdultCognitive DysfunctionCorpus CallosumFemaleGray MatterHIV InfectionsHumansMaleMiddle AgedWhite Mattercorpus callosumdiffusion imagingfMRIfractional anisotropyfunctional connectivityHIVneuropsychological functioning

Identifiers

PMID34382273
PMCPMC8449114
OpenAlexW3190526855

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.