Evidence map›Paper›PMID 33799927›Full record

ArticleCells2021

Elevated Serum Amyloid a Levels Are not Specific for Sarcoidosis but Associate with a Fibrotic Pulmonary Phenotype.

Els Beijer, Claudia Roodenburg-Benschop, Milou C Schimmelpennink, Jan C Grutters, Bob Meek, Marcel Veltkamp

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Mechanisms and markers of lung ageing in health and disease.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  3. Article
  4. Review
  5. Review
  6. Phenotypes and Serum Biomarkers in Sarcoidosis.Diagnostics (Basel, Switzerland) · 2024
    Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Mycobacterial Heat Shock Proteins in Sarcoidosis and Tuberculosis.International journal of molecular sciences · 2023
    Review
  14. Review
  15. Article
  16. Immune mechanisms in fibrotic pulmonary sarcoidosis.European respiratory review : an official journal of the European Respiratory Society · 2022
    Review
  17. 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

6 authors at 2 institutions in 1 country.

Els BeijerInterstitial Lung Diseases Centre of Excellence, Department of Pulmonology, St. Antonius Hospital, 3435 CM Nieuwegein, The Netherlands.ORCID 0000-0003-0439-2550
Claudia Roodenburg-BenschopInterstitial Lung Diseases Centre of Excellence, Department of Pulmonology, St. Antonius Hospital, 3435 CM Nieuwegein, The Netherlands.
Milou C SchimmelpenninkInterstitial Lung Diseases Centre of Excellence, Department of Pulmonology, St. Antonius Hospital, 3435 CM Nieuwegein, The Netherlands.
Jan C GruttersInterstitial Lung Diseases Centre of Excellence, Department of Pulmonology, St. Antonius Hospital, 3435 CM Nieuwegein, The Netherlands.
Bob MeekDepartment of Medical Microbiology and Immunology, St. Antonius Hospital, 3435 CM Nieuwegein, The Netherlands.ORCID 0000-0003-3410-9912
Marcel VeltkampInterstitial Lung Diseases Centre of Excellence, Department of Pulmonology, St. Antonius Hospital, 3435 CM Nieuwegein, The Netherlands.
St. Antonius Ziekenhuis · NLUniversity Medical Center Utrecht · NL

Funding

ZonMw 10070012010004
6 · The paper itself

Abstract

Elevated Serum Amyloid A (SAA) levels have been found in several inflammatory diseases, including sarcoidosis. SAA is suggested to be involved in sarcoidosis pathogenesis by involvement in granuloma formation and maintenance. We hypothesized that SAA serum levels would be higher in sarcoidosis compared to other non-infectious granulomatous and non-granulomatous diseases. SAA levels were measured in serum from sarcoidosis, Hypersensitivity pneumonitis (HP), and (eosinophilic) granulomatosis with polyangiitis ((E)GPA) patients. Idiopathic pulmonary fibrosis (IPF) patients were included as non-granulomatous disease group. SAA levels of patients with sarcoidosis (31.0 µg/mL), HP (23.4 µg/mL), (E)GPA (36.9 µg/mL), and IPF (22.1 µg/mL) were all higher than SAA levels of healthy controls (10.1 µg/mL). SAA levels did not differ between the diagnostic groups. When SAA serum levels were analyzed in sarcoidosis subgroups, fibrotic sarcoidosis patients showed higher SAA levels than sarcoidosis patients without fibrosis (47.8 µg/mL vs. 29.4 µg/mL,

Indexed as

AdultAgedAlveolitis, Extrinsic AllergicCase-Control StudiesCohort StudiesC-Reactive ProteinFemaleGene ExpressionGranulomatosis with PolyangiitisHumansIdiopathic Pulmonary FibrosisImmunosuppressive AgentsInfliximabMaleMethotrexateMiddle AgedC-Reactive ProteinImmunosuppressive AgentsInfliximabMethotrexatePrednisoneSAA1 protein, humanSerum Amyloid A ProteinfibrosisSAAsarcoidosis

Identifiers

PMID33799927
PMCPMC7998834
OpenAlexW3133704508

What OpenQuestion holds

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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 OpenQuestion graph.