Evidence map›Paper›PMID 19622045›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2009

HIV subtype D is associated with dementia, compared with subtype A, in immunosuppressed individuals at risk of cognitive impairment in Kampala, Uganda.

Ned Sacktor, Noeline Nakasujja, Richard L Skolasky, Mona Rezapour, Kevin Robertson, Seggane Musisi, Elly Katabira, Allan Ronald, David B Clifford, Oliver Laeyendecker and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed, 6 pooled it
5.0field-weighted citation impact, top 4% 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

78 citing papers in PubMed, 6 syntheses or guidelines pooled it, 141 citations in OpenAlex.

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18 more citing papers are in PubMed but not listed here.

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

11 authors at 6 institutions in 3 countries.

Ned SacktorDepartments of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA. sacktor@jhmi.edu
Noeline Nakasujja
Richard L Skolasky
Mona Rezapour
Kevin Robertson
Seggane Musisi
Elly Katabira
Allan Ronald
David B Clifford
Oliver Laeyendecker
Thomas C Quinn
Johns Hopkins University · USMakerere University · UGNational Institutes of Health · USUniversity of Manitoba · CAUniversity of North Carolina at Chapel Hill · USWashington University in St. Louis · US

Funding

International Center for Excellence in Research (ICER) in Uganda: Impact of ARVsZIAAI001040 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI REYNOLDS, STEVEN · 2009 to 2025
$23.5M
International Studies of the Acquired Immune Deficiency Syndrome (AIDS)ZIAAI000361 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI REDD, ANDREW · 2009 to 2025
$15.8M
NEUROLOGIC AIDS RESEARCH CONSORTIUMU01NS032228 · NINDS · WASHINGTON UNIVERSITY · PI CLIFFORD, DAVID B · 2003 to 2008
$11.4M
NIMODIPINE AND MEMANTINE FOR THE NEUROLOGICAL MANIFESTATIONS OF HIV-1R01NS032228 · NINDS · WASHINGTON UNIVERSITY · PI GATSONIS, CONSTANTINE A. · 1997 to 2001
$2.7M
Oxidative Stress Markers and HIV DementiaR01MH071150 · NIMH · JOHNS HOPKINS UNIVERSITY · PI SACKTOR, NED C · 2005 to 2009
$2.0M
Intramural NIH HHS ZIA AI000361NIMH NIH HHS MH71150NIMH NIH HHS R01 MH071150NINDS NIH HHS NS 32228NINDS NIH HHS R01 NS032228NINDS NIH HHS U01 NS032228
6 · The paper itself

Abstract

backgroundIn the United States, clade B is the predominant human immunodeficiency virus (HIV) subtype, whereas in sub-Saharan Africa, clades A, C, and D are the predominant subtypes. HIV subtype may have an impact on HIV disease progression. The effect of HIV subtype on the risk of dementia has, to our knowledge, not been examined. The objective of this study was to examine the relationship between HIV subtype and the severity of HIV-associated cognitive impairment among individuals initiating antiretroviral therapy in Uganda.

methodsSixty antiretroviral-naive HIV-infected individuals with advanced immunosuppression who were at risk of HIV-associated cognitive impairment underwent neurological, neuropsychological, and functional assessments, and gag and gp41 regions were subtyped. Subtype assignments were generated by sequence analysis using a portion of the gag and gp41 regions.

resultsThirty-three HIV-infected individuals were infected with subtype A, 2 with subtype C, 9 with subtype D, and 16 with A/D recombinants. Eight (89%) of 9 HIV-infected individuals with subtype D had dementia, compared with 7 (24%) of 33 HIV-infected individuals with subtype A (P = .004).

conclusionsThese results suggest that, in untreated HIV-infected individuals with advanced immunosuppression who are at risk of developing HIV-associated cognitive impairment, HIV dementia may be more common among patients infected with subtype D virus than among those infected with subtype A virus. These findings provide the first evidence, to our knowledge, to demonstrate that HIV subtypes may have a pathogenetic factor with respect to their capacity to cause cognitive impairment. Additional studies are needed to confirm this observation and to define the mechanism by which subtype D leads to an increased risk of neuropathogenesis.

Indexed as

AdultAIDS Dementia ComplexAntiretroviral Therapy, Highly ActiveDisease ProgressionFemalegag Gene Products, Human Immunodeficiency VirusGenetic VariationHIV-1HIV Envelope Protein gp41HIV InfectionsHumansImmunocompromised HostMaleMolecular Sequence DataPhylogenyRNA, Viralgag Gene Products, Human Immunodeficiency Virusgp41 protein, Human immunodeficiency virus 1HIV Envelope Protein gp41RNA, Viral

Identifiers

PMID19622045
PMCPMC2941149
OpenAlexW2142153651

What OpenQuestion holds

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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.