Evidence map›Paper›PMID 23734875›Full record

ArticleBMC infectious diseases2013

A prospective study of endothelial activation biomarkers, including plasma angiopoietin-1 and angiopoietin-2, in Kenyan women initiating antiretroviral therapy.

Susan M Graham, Nimerta Rajwans, Kenneth A Tapia, Walter Jaoko, Benson B A Estambale, R Scott McClelland, Julie Overbaugh, W Conrad Liles

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
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  17. Dysfunction of brain pericytes in chronic neuroinflammation.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2016
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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

8 authors at 4 institutions in 3 countries.

Susan M Graham
Nimerta Rajwans
Kenneth A Tapia
Walter Jaoko
Benson B A Estambale
R Scott McClelland
Julie Overbaugh
W Conrad Liles
University of Washington · USUniversity of Nairobi · KEFred Hutch Cancer Center · USUniversity of Toronto · CA

Funding

University of Washington/Fred Hutch Center for AIDS ResearchP30AI027757 · NIAID · UNIVERSITY OF WASHINGTON · PI CONNIE L CELUM · 1988 to 2026
$104.9M
EARLY INFECTION IN WOMEN EXPOSED MUCOSALLY TO HIV-1R37AI038518 · NIAID · FRED HUTCHINSON CANCER RESEARCH CENTER · PI OVERBAUGH, JULIE M. · 1999 to 2019
$12.9M
Antiretroviral Therapy and HIV-1 Infectivity in WomenR01AI058698 · NIAID · UNIVERSITY OF WASHINGTON · PI MCCLELLAND, RAYMOND SCOTT · 2005 to 2010
$2.8M
Antiretroviral Therapy and HIV-1 Infectivity in WomenR56AI058698 · NIAID · UNIVERSITY OF WASHINGTON · PI MCCLELLAND, RAYMOND SCOTT · 2011 to 2011
$390k
EARLY INFECTION IN WOMEN EXPOSED MUCOSALLY TO HIV-1R01AI038518 · NIAID · UNIVERSITY OF WASHINGTON · PI OVERBAUGH, JULIE M · 1995 to 1998
–
CIHRNIAID NIH HHS AI-38518NIAID NIH HHS AI-58698NIAID NIH HHS P30 AI027757
6 · The paper itself

Abstract

backgroundHIV-1-related inflammation is associated with increased levels of biomarkers of vascular adhesion and endothelial activation, and may increase production of the inflammatory protein angiopoietin-2 (ANG-2), an adverse prognostic biomarker in severe systemic infection. We hypothesized that antiretroviral therapy (ART) initiation would decrease endothelial activation, reducing plasma levels of ANG-2.

methodsAntiretroviral-naïve Kenyan women with advanced HIV infection were followed prospectively. Endothelial activation biomarkers including soluble intercellular adhesion molecule-1 (ICAM-1), vascular adhesion molecule-1 (VCAM-1), and E-selectin, and plasma ANG-2 and angiopoietin-1 (ANG-1) were tested in stored plasma samples from 0, 6, and 12 months after ART initiation. We used Wilcoxon matched-pairs signed rank tests to compare endothelial activation biomarkers across time-points, generalized estimating equations to analyze associations with change in log10-transformed biomarkers after ART initiation, and Cox proportional-hazards regression to analyze associations with mortality.

resultsThe 102 HIV-1-seropositive women studied had advanced infection (median CD4 count, 124 cells/μL). Soluble ICAM-1 and plasma ANG-2 levels decreased at both time-points after ART initiation, with concomitant increases in the beneficial protein ANG-1. Higher ANG-2 levels after ART initiation were associated with higher plasma HIV-1 RNA, oral contraceptive pill use, pregnancy, severe malnutrition, and tuberculosis. Baseline ANG-2 levels were higher among five women who died after ART initiation than among women who did not (median 2.85 ng/mL [inter-quartile range (IQR) 2.47-5.74 ng/mL] versus median 1.32 ng/mL [IQR 0.35-2.18 ng/mL], p = 0.01). Both soluble ICAM-1 and plasma ANG-2 levels predicted mortality after ART initiation.

conclusionsBiomarkers of endothelial activation decreased after ART initiation in women with advanced HIV-1 infection. Changes in plasma ANG-2 were associated with HIV-1 RNA levels over 12 months of follow-up. Soluble ICAM-1 and plasma ANG-2 levels represent potential biomarkers for adverse outcomes in advanced HIV-1 infection.

Indexed as

AdultAngiopoietin-1Angiopoietin-2Anti-Retroviral AgentsAntiretroviral Therapy, Highly ActiveBiomarkersCell Adhesion MoleculesFemaleHIV-1HIV InfectionsHumansKenyaMalePregnancyProspective StudiesAngiopoietin-1Angiopoietin-2Anti-Retroviral AgentsBiomarkersCell Adhesion Molecules

Identifiers

PMID23734875
PMCPMC3679794
OpenAlexW2152450143

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.