Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 382

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Serum interferon levels in patients with systemic lupus erythematosus

Ytterberg, Steven R., Schnitzer, Thomas J.·1982·Arthritis & Rheumatism

Abstract

Levels of interferon (IFN) were measured in 81 serum samples from 23 patients with systemic lupus erythematosus (SLE) by a plaque‐reduction method and correlated retrospectively with clinical records of disease activity, anti‐DNA binding, and serum complement measurements. IFN titers were found to correlate with both clinical disease activity and anti‐DNA binding, but no relation was found to serum complement. Most (76.6%, 31 of 41) serum samples obtained during periods of active disease contained measureable amounts of IFN, but only 9.1% (2 of 22) of results of tests on samples obtained during periods of disease quiescence were positive (P < 0.005). Of samples with clearly elevated anti‐DNA binding (> 40%), 69.7% (23 of 33) had positive results for IFN, but 57.1% (8 of 14) had negative results when the anti‐DNA binding was normal (< 20%) (P < 0.005). Measurement of serum IFN titers in patients with SLE, therefore, provides another serologic marker of disease activity. Contrary to the findings of previous studies, the IFN found in the present study was characterized as IFN‐α, or Type I IFN, on the basis of acid stability and neutralization by antibody to IFN‐α. Of interest are the questions raised about the origin of IFN in the sera of patients with SLE and what role IFN might have in the pathogenesis of the autoimmune disease in view of the many documented immunomodulating effects of IFN.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/art.1780250407

Cites

12 of 12 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 12 references

Cited by

See all 382

Metadata

Authors
Ytterberg, S. R., & Schnitzer, T. J.
Venue
Arthritis & Rheumatism
Publisher
Wiley
Published
1982-04
Volume
25
Issue
4
Pages
401-406
ISSN
  • 0004-3591 (ISSN-L)
  • 1529-0131
OpenAlex
W2162082073
Cited by
382
References
12
FWCI
9.78
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Serum interferon levels in patients with systemic lupus erythematosus. https://app.cochat.ai/papers/10.1002/art.1780250407
The paper
Ytterberg, S. R., & Schnitzer, T. J. (1982). Serum interferon levels in patients with systemic lupus erythematosus. Arthritis & Rheumatism. https://doi.org/10.1002/art.1780250407

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.