Evidence map›Paper›PMID 33774179›Full record

ArticleClinical immunology (Orlando, Fla.)2021

Activation of classical and alternative complement pathways in the pathogenesis of lung injury in COVID-19.

Abhigyan Satyam, Maria G Tsokos, Olga R Brook, Jonathan L Hecht, Vaishali R Moulton, George C Tsokos

Open access · greenAbstract readCase Reports
In one paragraph

Article in Clinical immunology (Orlando, Fla.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
3.8field-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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Mucosal immune response in biology, disease prevention and treatment.Signal transduction and targeted therapy · 2025
    Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Immunity and Coagulation in COVID-19.International journal of molecular sciences · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
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  18. Article
  19. Article
  20. Intertwined pathways of complement activation command the pathogenesis of lupus nephritis.Translational research : the journal of laboratory and clinical medicine · 2022
    Review
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.

Abhigyan SatyamDepartment of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States. Electronic address: asatyam@bidmc.harvard.edu.
Maria G TsokosDepartment of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
Olga R BrookDepartment of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
Jonathan L HechtDepartment of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
Vaishali R MoultonDepartment of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
George C TsokosDepartment of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
Beth Israel Deaconess Medical Center · USHarvard University · US

Funding

Intracellular complement activation in Lupus Nephritis PodocytesR21AI151367 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI SATYAM, ABHIGYAN · 2021 to 2022
$481k
NIAID NIH HHS R21 AI151367
6 · The paper itself

Abstract

Lung inflammation and damage is prominent in people infected with SARS-Cov-2 and a major determinant of morbidity and mortality. We report the deposition of complement components in the lungs of people who succumbed to COVID-19 consistent with the activation of the classical and the alternative pathways. Our study provides strong rationale for the expansion of trials involving the use of complement inhibitors to treat patients with COVID-19.

Indexed as

AgedAged, 80 and overComplement ActivationComplement Inactivating AgentsComplement Pathway, AlternativeCOVID-19Epithelial CellsFemaleHumansImmunohistochemistryLungLung InjuryMaleMiddle AgedComplement Inactivating AgentsComplement activationCOVID-19Immune complexesLung injurySARS-Cov-2

Identifiers

PMID33774179
PMCPMC7989127
OpenAlexW3139442136

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.