Evidence map›Paper›PMID 32659155›Full record

ArticleLupus2020

Classical complement activation on human erythrocytes in subjects with systemic lupus erythematosus and a history of autoimmune hemolytic anemia.

Pamela Hair, Daniel W Goldman, Jessica Li, Michelle Petri, Neel Krishna, Kenji Cunnion

Open access · greenAbstract read
In one paragraph

Article in Lupus, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.4field-weighted citation impact, top 37% 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

6 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
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  3. Review
  4. Review
  5. Observational
  6. 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.

Pamela HairEastern Virginia Medical School Pediatric Research, Department of Pediatrics, Norfolk, VA.
Daniel W GoldmanJohns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, MD.
Jessica LiJohns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, MD.
Michelle PetriJohns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, MD.ORCID https://orcid.org/0000-0003-1441-5373
Neel KrishnaEastern Virginia Medical School, Department of Microbiology and Molecular Cell Biology, Norfolk, VA.
Kenji CunnionEastern Virginia Medical School Pediatric Research, Department of Pediatrics, Norfolk, VA.
Eastern Virginia Medical School · USJohns Hopkins University · US

Funding

Hopkins Lupus CohortR01AR069572 · NIAMS · JOHNS HOPKINS UNIVERSITY · PI PETRI, MICHELLE A · 2016 to 2020
$3.4M
NIAMS NIH HHS R01 AR069572
6 · The paper itself

Abstract

introductionAutoimmune hemolytic anemia (AIHA) is a serious manifestation of systemic lupus erythematosus (SLE) associated with significant morbidity and mortality. In order to more fully understand the causative pathways, we utilized sera from subjects with SLE and active AIHA, or a history of AIHA, to evaluate the classical complement pathway, anti-erythrocyte antibodies, and immune complexes.

methodsTo evaluate antibody-mediated complement activation on the surface of erythrocytes, as occurs in AIHA, blood type O erythrocytes were incubated with sera from 19 subjects with SLE and a history of AIHA. Circulating anti-erythrocyte antibodies and immune complexes were measured with ELISA-based assays.

resultsIn total, 90% of subjects with SLE and a history of AIHA, but not active clinical hemolysis, had measurable anti-erythrocyte antibodies. Of those with anti-erythrocyte antibody, 53% demonstrated complement opsonization on the erythrocyte surface >twofold above negative control and 29% generated the anaphylatoxin C5a.

conclusionsFor subjects with SLE and a history of AIHA, the persistence of circulating anti-erythrocyte antibodies and resultant erythrocyte complement opsonization and anaphylatoxin generation suggests the possibility that these complement effectors contribute to chronic morbidity and risk of AIHA relapse.

Indexed as

AdultAnemia, Hemolytic, AutoimmuneAntigen-Antibody ComplexComplement ActivationErythrocytesFemaleHemolysisHumansLongitudinal StudiesLupus Erythematosus, SystemicMaleMiddle AgedSUMO-1 ProteinAntigen-Antibody ComplexSUMO-1 ProteinAutoimmune hemolytic anemia (AIHA)peptide inhibitor of complement C1 (PIC1)systemic lupus erythematosus (SLE)

Identifiers

PMID32659155
PMCPMC8260106
OpenAlexW3040891826

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.