Evidence map›Paper›PMID 29449278›Full record

ArticleAJNR. American journal of neuroradiology2018

7T Brain MRS in HIV Infection: Correlation with Cognitive Impairment and Performance on Neuropsychological Tests.

M Mohamed, P B Barker, R L Skolasky, N Sacktor

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 25% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
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  13. COVID-19-related cognitive dysfunction may be associated with transient disruption in the DLPFC glutamatergic pathway.Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia · 2021
    Article
  14. Independent and Combined Effects of Nicotine or Chronic Tobacco Smoking and HIV on the Brain: A Review of Preclinical and Clinical Studies.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2020
    Review
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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

4 authors at 3 institutions in 2 countries.

M MohamedFrom the Russell H. Morgan Department of Radiology and Radiological Science (M.M., P.B.B.) mnourel1@jhmi.edu.ORCID 0000-0002-5464-3293
P B BarkerFrom the Russell H. Morgan Department of Radiology and Radiological Science (M.M., P.B.B.).ORCID 0000-0002-6410-7793
R L SkolaskyDepartments of Neurology (R.L.S., N.S.).ORCID 0000-0002-2598-4427
N SacktorDepartments of Neurology (R.L.S., N.S.).ORCID 0000-0001-5349-8058
Norwegian Womens Public Health Association · NOKennedy Krieger Institute · USMidwest Orthopaedic Research Foundation · US

Funding

Therapeutic CoreP30MH075673 · NIMH · JOHNS HOPKINS UNIVERSITY · PI Leah Helane Rubin · 2006 to 2026
$33.2M
TR&D 4: Algorithms for functional and anatomical brain analysisP41EB015909 · NIBIB · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI VAN ZIJL, PETER CM · 2012 to 2020
$13.1M
Amyloid Neuroimaging in Older HIV+ Individuals with Cognitive ImpairmentR01NS081196 · NINDS · JOHNS HOPKINS UNIVERSITY · PI MOHAMED, MONA ADEL, SACKTOR, NED C · 2012 to 2016
$3.1M
NAAG, Glutamate, and GABA in OCDR21MH087799 · NIMH · JOHNS HOPKINS UNIVERSITY · PI MOHAMED, MONA ADEL · 2010 to 2011
$464k
NIBIB NIH HHS P41 EB015909NIMH NIH HHS P30 MH075673NIMH NIH HHS R21 MH087799NINDS NIH HHS R01 NS081196
6 · The paper itself

Abstract

background and purposeValidated neuroimaging markers of HIV-associated neurocognitive disorder in patients on antiretroviral therapy are urgently needed for clinical trials. The purpose of this study was to explore the relationship between cognitive impairment and brain metabolism in older subjects with HIV infection. It was hypothesized that MR spectroscopy measurements related to neuronal health and function (particularly MATERIALS AND

methodsForty-five HIV-positive patients (mean age, 58.9 ± 5.3 years; 33 men) underwent detailed neuropsychological testing and brain MR spectroscopy at 7T. Twenty-four subjects were classified as having asymptomatic cognitive impairment, and 21 were classified as having symptomatic cognitive impairment. Single-voxel proton MR spectra were acquired from 5 brain regions and quantified using LCModel software. Brain metabolites and neuropsychological test results were compared using nonparametric statistics and Pearson correlation coefficients.

resultsDifferences in brain metabolites were found between symptomatic and asymptomatic subjects, with the main findings being lower measures of

conclusionsCompared with asymptomatic subjects, symptomatic HIV-positive subjects had lower levels of NAA and glutamate, most notably in the frontal white matter, which also correlated with performance on neuropsychological tests. High-field MR spectroscopy offers insight into the pathophysiology associated with cognitive impairment in HIV and may be useful as a quantitative outcome measure in future treatment trials.

Indexed as

AdultAgedAIDS Dementia ComplexCase-Control StudiesFemaleHumansMagnetic Resonance SpectroscopyMaleMiddle AgedNeuropsychological Tests

Identifiers

PMID29449278
PMCPMC5895488
OpenAlexW2786507746

What OpenQuestion holds

Textmetadata
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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.