Evidence map›Paper›PMID 21216880›Full record

Trial reportAmerican journal of respiratory and critical care medicine2011

Serum PARC/CCL-18 concentrations and health outcomes in chronic obstructive pulmonary disease.

Don D Sin, Bruce E Miller, Annelyse Duvoix, S F Paul Man, Xuekui Zhang, Edwin K Silverman, John E Connett, Nicholas A Anthonisen, Robert A Wise, Donald Tashkin and 7 more

Open access · greenAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in American journal of respiratory and critical care medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
10.7field-weighted citation impact, top 1% 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

48 citing papers in PubMed, 115 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Rationale and Design of the Alpha-1 Biomarkers Consortium Study.Chronic obstructive pulmonary diseases (Miami, Fla.) · 2025
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Biomarkers for Comorbidities Modulate the Activity of T-Cells in COPD.International journal of molecular sciences · 2021
    Article
  12. Review
  13. Article
  14. Review
  15. Observational
  16. Chemokines in COPD: From Implication to Therapeutic Use.International journal of molecular sciences · 2019
    Review
  17. Article
  18. Article
  19. Article
  20. 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

17 authors at 11 institutions in 5 countries.

Don D SinUBC James Hogg Research Centre, St. Paul's Hospital, 1081 Burrard Street, Vancouver, BC, V6Z 1Y6 Canada. don.sin@hli.ubc.ca
Bruce E Miller
Annelyse Duvoix
S F Paul Man
Xuekui Zhang
Edwin K Silverman
John E Connett
Nicholas A Anthonisen
Robert A Wise
Donald Tashkin
Bartolome R Celli
Lisa D Edwards
Nicholas Locantore
William Macnee
Ruth Tal-Singer
David A Lomas
ECLIPSE Investigators
Brigham and Women's Hospital · USGlaxoSmithKline (United Kingdom) · GBResearch Triangle Park Foundation · USUniversity of British Columbia · CAUniversity of Cambridge · GBJohns Hopkins University · USProvidence College · USQueen's Medical Centre · GBUniversity of California, Los Angeles · USUniversity of Manitoba · CAUniversity of Minnesota · US

Funding

EARLY INTERVENTION/CHRONIC OBSTRUCTIVE PULMONARY DISEASEN01HR046002 · HR · UNIVERSITY OF MINNESOTA TWIN CITIES · PI CONNETT, JOHN E · 1985 to 1998
–
CIHRMedical Research Council G0901786NHLBI NIH HHS N01-HR-46002
6 · The paper itself

Abstract

rationaleThere are no accepted blood-based biomarkers in chronic obstructive pulmonary disease (COPD). Pulmonary and activation-regulated chemokine (PARC/CCL-18) is a lung-predominant inflammatory protein that is found in serum.

objectivesTo determine whether PARC/CCL-18 levels are elevated and modifiable in COPD and to determine their relationship to clinical end points of hospitalization and mortality.

methodsPARC/CCL-18 was measured in serum samples from individuals who participated in the ECLIPSE (Evaluation of COPD Longitudinally to Identify Predictive Surrogate Endpoints) and LHS (Lung Health Study) studies and a prednisolone intervention study. MEASUREMENTS AND MAIN

resultsSerum PARC/CCL-18 levels were higher in subjects with COPD than in smokers or lifetime nonsmokers without COPD (105 vs. 81 vs. 80 ng/ml, respectively; P < 0.0001). Elevated PARC/CCL-18 levels were associated with increased risk of cardiovascular hospitalization or mortality in the LHS cohort and with total mortality in the ECLIPSE cohort.

conclusionsSerum PARC/CCL-18 levels are elevated in COPD and track clinical outcomes. PARC/CCL-18, a lung-predominant chemokine, could be a useful blood biomarker in COPD.

Indexed as

Anti-Inflammatory AgentsBiomarkersChemokines, CCCohort StudiesEnzyme-Linked Immunosorbent AssayFemaleHospitalizationHumansKaplan-Meier EstimateLongitudinal StudiesMaleMiddle AgedPrednisolonePulmonary Disease, Chronic ObstructiveRisk FactorsSmokingAnti-Inflammatory AgentsBiomarkersCCL18 protein, humanChemokines, CCPrednisolone

Identifiers

PMID21216880
PMCPMC3114051
OpenAlexW2034745853

What OpenQuestion holds

Textmetadata
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.