Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 491

The DOI matches its Crossref record.

T-Helper 1-Type Immunity to Trophoblast in Women With Recurrent Spontaneous Abortion

Hill, Joseph A.·1995·JAMA: The Journal of the American Medical Association

Abstract

OBJECTIVE: To test the hypothesis that peripheral blood mononuclear cells in women with unexplained recurrent abortion (URA) produce T-helper 1 (TH1)-type cytokines in response to trophoblast antigens. DESIGN: Cohort study. SETTING: Medical center. PARTICIPANTS: A total of 244 women with URA, 13 reproductively normal parous control women, and 10 men. MAIN OUTCOME MEASURES: Supernatants from trophoblast-activated peripheral blood mononuclear cells from all participants were tested for toxic effects on mouse embryos and by enzyme-linked immunosorbent assay (ELISA) for interferon gamma (IFN-gamma). Supernatants from 20 URA patients with embryotoxic activity and IFN-gamma, 13 reproductively normal parous women, and 10 men were further tested by ELISA for other TH1-type cytokines (interleukin-2 [IL-2], tumor necrosis factor-beta [TNF-beta]), TH2-type cytokines (IL-4, IL-10), and TNF-alpha. RESULTS: Embryotoxic activity was detected in supernatants from 160 of 244 URA patients and in none of the controls. Interferon gamma was detected in supernatants from 125 of 244 URA patients and was significantly associated with embryotoxicity (121 of 160 supernatants with embryotoxicity vs four of 84 supernatants without embryotoxicity [P < .001]). Of 20 supernatants from patients chosen for further study, all were positive for TNF-alpha, 17 for TNF-beta, two for IL-10, and one for IL-4. No cytokines were detected in supernatants from unstimulated or red blood cell membrane-activated cells of women with URA. In contrast, trophoblast-activated lymphocyte supernatants from reproductively normal women and men neither were embryotoxic nor contained TH1-type cytokines, but most contained the TH2-type cytokine IL-10. Three supernatants from reproductively normal women also contained IL-4. CONCLUSION: Whereas TH1-type immunity to trophoblast is associated with URA and may play a role in reproductive failure, TH2-type immunity may be a natural response to trophoblast contributing to successful pregnancy.

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 · 10.1001/jama.1995.03520480053039

Cites

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

Cited by

See all 491

Metadata

Authors
Hill, J. A.
Venue
JAMA: The Journal of the American Medical Association
Published
1995-06-28
Volume
273
Issue
24
Pages
1933
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2053516651
Cited by
491
References
0
FWCI
7.07
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: T-Helper 1-Type Immunity to Trophoblast in Women With Recurrent Spontaneous Abortion. https://app.cochat.ai/papers/10.1001/jama.1995.03520480053039
The paper
Hill, J. A. (1995). T-Helper 1-Type Immunity to Trophoblast in Women With Recurrent Spontaneous Abortion. JAMA: The Journal of the American Medical Association. https://doi.org/10.1001/jama.1995.03520480053039

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.