Evidence map›Paper›PMID 36470771›Full record

Observational studyThe Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation2023

Circulating markers of inflammation and angiogenesis and clinical outcomes across subtypes of pulmonary arterial hypertension.

Kellen Hirsch, Stephanie Nolley, David D Ralph, Ying Zheng, William A Altemeier, Christopher J Rhodes, Nicholas W Morrell, Martin R Wilkins, Peter J Leary, Samuel G Rayner

Open access · greenAbstract readObservational Study
In one paragraph

Observational study in The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
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  5. The right time, the right cell: the potential for precision senotherapy in pulmonary arterial hypertension.American journal of physiology. Lung cellular and molecular physiology · 2026
    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

10 authors at 3 institutions in 2 countries.

Kellen HirschDepartment of Medicine, University of Washington, Seattle, Washington.
Stephanie NolleyDepartment of Medicine, University of Washington, Seattle, Washington.
David D RalphDepartment of Medicine, University of Washington, Seattle, Washington.
Ying ZhengDepartment of Bioengineering, University of Washington, Seattle, Washington.
William A AltemeierDepartment of Medicine, University of Washington, Seattle, Washington; Center for Lung Biology, University of Washington, Seattle, Washington.
Christopher J RhodesNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Nicholas W MorrellDepartment of Medicine, University of Cambridge, Cambridge, United Kingdom.
Martin R WilkinsNational Heart and Lung Institute, Imperial College London, London, United Kingdom.
Peter J LearyDepartment of Medicine, University of Washington, Seattle, Washington; Department of Epidemiology, University of Washington, Seattle, Washington.
Samuel G RaynerDepartment of Medicine, University of Washington, Seattle, Washington; Department of Bioengineering, University of Washington, Seattle, Washington; Center for Lung Biology, University of Washington, Seattle, Washington. Electronic address: srayner@uw.edu.
University of Washington · USImperial College London · GBUniversity of Cambridge · GB

Funding

NCCIH Supplement to NCATS/CTSA Program for KL2 Scholars - M. SoddersKL2TR002317 · NCATS · UNIVERSITY OF WASHINGTON · PI Christy Michelle McKinney · 2017 to 2026
$14.5M
Institute of Translational Health SciencesKL2TR000421 · NCATS · UNIVERSITY OF WASHINGTON · PI DISIS, MARY L. · 2012 to 2016
$12.6M
British Heart Foundation FS/15/59/31839British Heart Foundation FS/SBSRF/22/31025British Heart Foundation RE/18/4/34215British Heart Foundation RG/19/3/34265NCATS NIH HHS KL2 TR000421NCATS NIH HHS KL2 TR002317
6 · The paper itself

Abstract

backgroundSubtypes of pulmonary arterial hypertension (PAH) differ in both fundamental disease features and clinical outcomes. Angiogenesis and inflammation represent disease features that may differ across subtypes and are of special interest in connective tissue disease-associated PAH (CTD-PAH). We compared inflammatory and angiogenic biomarker profiles across different etiologies of PAH and related them to clinical outcomes.

methodsParticipants with idiopathic PAH, CTD-PAH, toxin-associated PAH (tox-PAH), or congenital heart disease-associated PAH (CHD-PAH) were enrolled into a prospective observational cohort. Baseline serum concentrations of 33 biomarkers were related to 3-year mortality, echocardiogram, REVEAL score, and 6-minute walk distance (6MWD). Findings were validated using plasma proteomic data from the UK PAH Cohort Study.

resultsOne hundred twelve patients were enrolled: 45 idiopathic, 27 CTD-PAH, 20 tox-PAH, and 20 CHD-PAH. Angiogenic and inflammatory biomarkers were distinctly elevated within the CTD-PAH cohort. Six biomarkers were associated with mortality within the entire PAH cohort: interleukin-6 (IL-6, HR:1.6, 95% CI:1.18-2.18), soluble fms-like tyrosine kinase 1 (sFlt-1, HR:1.35, 95% CI:1.02-1.80), placental growth factor (PlGF, HR:1.55, 95% CI:1.07-2.25), interferon gamma-induced protein 10 (IP-10, HR:1.44, 95% CI:1.04-1.99), tumor necrosis factor-beta (TNF-β, HR:1.81, 95% CI:1.11-2.95), and NT-proBNP (HR:2.19, 95% CI:1.52-3.14). Only IL-6 and NT-proBNP remained significant after controlling for multiple comparisons. IL-6, IP-10, and sFlt-1 significantly associated with mortality in CTD-PAH, but not non-CTD-PAH subgroups. In the UK cohort, IP-10, PlGF, TNF-β, and NT-proBNP significantly associated with 5-year survival.

conclusionLevels of angiogenic and inflammatory biomarkers are elevated in CTD-PAH, compared with other etiologies of PAH, and may correlate with clinical outcomes including mortality.

Indexed as

Hypertension, PulmonaryPulmonary Arterial HypertensionBiomarkersChemokine CXCL10Cohort StudiesFamilial Primary Pulmonary HypertensionFemaleHumansInflammationInterleukin-6Lymphotoxin-alphaPlacenta Growth FactorProteomicsBiomarkersChemokine CXCL10Interleukin-6Lymphotoxin-alphaPlacenta Growth Factorangiogenesisbiomarkersconnective tissue diseaseetiology subtypesinflammationpulmonary arterial hypertension

Identifiers

PMID36470771
PMCPMC9840657
OpenAlexW4308323148

What OpenQuestion holds

Textmetadata
LicenceTDM
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.