Evidence map›Paper›PMID 29974672›Full record

ArticleImmunity, inflammation and disease2018

High background in ELISpot assays is associated with elevated levels of immune activation in HIV-1-seronegative individuals in Nairobi.

Amy Y Liu, Stephen C De Rosa, Brandon L Guthrie, Robert Y Choi, Rose Kerubo-Bosire, Barbra A Richardson, James Kiarie, Carey Farquhar, Barbara Lohman-Payne

Open access · goldAbstract read
In one paragraph

Article in Immunity, inflammation and disease, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 45% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Effective Anti-SARS-CoV-2 Immune Response in Patients With Clonal Mast Cell Disorders.The journal of allergy and clinical immunology. In practice · 2022
    Article
  5. Article
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

9 authors at 4 institutions in 2 countries.

Amy Y LiuDepartment of Epidemiology, University of Washington, Seattle, Washington, USA.
Stephen C De RosaDepartment of Laboratory Medicine, University of Washington, Seattle, Washington, USA.
Brandon L GuthrieDepartment of Epidemiology, University of Washington, Seattle, Washington, USA.
Robert Y ChoiDepartment of Medicine, University of Washington, Seattle, Washington, USA.
Rose Kerubo-BosireCentre for Public Health Research, Kenya Medical Research Institute, Nairobi, Kenya.
Barbra A RichardsonVaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.
James KiarieDepartment of Obstetrics and Gynaecology, Kenyatta National Hospital, Nairobi, Kenya.
Carey FarquharDepartment of Epidemiology, University of Washington, Seattle, Washington, USA.
Barbara Lohman-PayneDepartment of Medicine, University of Washington, Seattle, Washington, USA.ORCID 0000-0001-5244-8681
University of Washington · USKenya Medical Research Institute · KEKenyatta National Hospital · KEUniversity of Nairobi · KE

Funding

University of Washington/Fred Hutch Center for AIDS ResearchP30AI027757 · NIAID · UNIVERSITY OF WASHINGTON · PI EDWIN ROBERTO ORELLANA · 1988 to 2026
$104.9M
INTERNATIONAL TRAINING GRANT IN EPIDEMIOLOGYD43TW000007 · FIC · UNIVERSITY OF WASHINGTON · PI FARQUHAR, CAREY · 1988 to 2012
$16.3M
Statistics and Data Management P20GM104317 · NIGMS · UNIVERSITY OF RHODE ISLAND · PI MICHELOW, IAN · 2013 to 2017
$9.8M
Protective cellular immune responses in HIV-1 discordant couplesR01AI068431 · NIAID · UNIVERSITY OF WASHINGTON · PI FARQUHAR, CAREY · 2006 to 2010
$3.1M
FIC NIH HHS D43 TW000007NIAID NIH HHS P30 AI027757NIAID NIH HHS R01 AI068431NIGMS NIH HHS P20 GM104317
6 · The paper itself

Abstract

introductionSpontaneous interferon-γ (IFNγ) released detected by enzyme-linked immunospot (ELISpot) assays may be a biological phenomenon. Markers of immune activation levels were assessed as correlates of high background among individuals in Kenya.

methodsCouples concordantly seronegative for HIV-1 were enrolled. IFN-γ ELISpot assays were conducted and negative control wells were categorized as having either high or low background (≥50 and <50 SFU/10

resultsAmong 58 individuals, 14 (24%) had high background. Frequencies of CD4

conclusionsThese findings suggest that increased basal immune responses may be a biological mechanism contributing to higher background ELISpot SFU. Systematic exclusion of data from individuals with increased background in IFN-γ release assays may bias results in population-based studies.

Indexed as

HIV-1ADP-ribosyl Cyclase 1AdultCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCitiesEnzyme-Linked Immunospot AssayFemaleHIV SeronegativityHLA-DR AntigensHumansInterferon-gammaKenyaLymphocyte ActivationMaleMembrane GlycoproteinsADP-ribosyl Cyclase 1CD38 protein, humanHLA-DR AntigensInterferon-gammaMembrane GlycoproteinsFlow cytometryHIV-seronegativeIGRA

Identifiers

PMID29974672
PMCPMC6113767
OpenAlexW2819624235

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LicenceCC BY
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Registered trials

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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.