Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 441

The DOI matches its Crossref record; 65 of the 65 references it cites were found in a registry or an index.

Association of Promoter Variants in the α7 Nicotinic Acetylcholine Receptor Subunit Gene With an Inhibitory Deficit Found in Schizophrenia

Leonard, Sherry, Gault, Judith, Hopkins, Jan, Logel, Judith, Vianzon, Ruby, Short, Margaret, Drebing, Carla, Berger, Ralph, Venn, Diana, Sirota, Pinkhas, Zerbe, Gary, Olincy, Ann, Ross, Randal G, Adler, Lawrence E., Freedman, Robert·2002·Archives of General Psychiatry

Abstract

BACKGROUND: The alpha7 neuronal nicotinic acetylcholine receptor subunit gene (CHRNA7) has been implicated as a candidate gene for schizophrenia, and for an auditory sensory processing deficit found in the disease, by both genetic linkage at 15q14 and biochemical data. The expression of CHRNA7 is reduced in several brain regions in schizophrenic subjects compared with control subjects. This study presents DNA sequence analysis of the core promoter region for CHRNA7 in schizophrenic and control subjects. METHODS: Single-strand conformation polymorphism analysis and DNA sequencing were used for mutation screening of the core promoter in the CHRNA7 gene. The sample included subjects from 166 schizophrenic families and 165 controls. Controls had no evidence of current or past psychosis and had auditory evoked potentials recorded. RESULTS: Multiple polymorphic patterns were identified in the CHRNA7 core promoter in both schizophrenic and control subjects. Functional analysis of polymorphisms indicated that transcription was reduced. The prevalence of functional promoter variants was statistically greater in schizophrenic subjects than in the controls. Presence of an alpha7 promoter polymorphism in controls was associated with failure to inhibit the P50 auditory evoked potential response. CONCLUSIONS: Although linkage disequilibrium with other genetic alterations cannot be excluded, the CHRNA7 core promoter variants, found in this study, may contribute to a common pathophysiologic feature of schizophrenia.

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/archpsyc.59.12.1085

Cites

65 of 65 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 65 references

Cited by

See all 441

Metadata

Authors
Leonard, S., Gault, J., Hopkins, J., Logel, J., Vianzon, R., Short, M., Drebing, C., Berger, R., Venn, D., Sirota, P., Zerbe, G., Olincy, A., Ross, R. G., Adler, L. E., & Freedman, R.
Venue
Archives of General Psychiatry
Published
2002-12-01
Volume
59
Issue
12
Pages
1085
ISSN
0003-990X (ISSN-L)
OpenAlex
W2124888321
Cited by
441
References
65
FWCI
14.34
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: Association of Promoter Variants in the α7 Nicotinic Acetylcholine Receptor Subunit Gene With an Inhibitory Deficit Found in Schizophrenia. https://app.cochat.ai/papers/10.1001/archpsyc.59.12.1085
The paper
Leonard, S., Gault, J., Hopkins, J., Logel, J., Vianzon, R., Short, M., Drebing, C., Berger, R., Venn, D., Sirota, P., Zerbe, G., Olincy, A., Ross, R. G., Adler, L. E., & Freedman, R. (2002). Association of Promoter Variants in the α7 Nicotinic Acetylcholine Receptor Subunit Gene With an Inhibitory Deficit Found in Schizophrenia. Archives of General Psychiatry. https://doi.org/10.1001/archpsyc.59.12.1085

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.