Evidence map›Paper›PMID 19631623›Full record

ArticleBrain research2009

A 2-base pair deletion polymorphism in the partial duplication of the alpha7 nicotinic acetylcholine gene (CHRFAM7A) on chromosome 15q14 is associated with schizophrenia.

Melissa L Sinkus, Michael J Lee, Judith Gault, Judith Logel, Margaret Short, Robert Freedman, Susan L Christian, Jennifer Lyon, Sherry Leonard

Open access · greenAbstract read
In one paragraph

Article in Brain research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

52 citing papers in PubMed, 84 citations in OpenAlex.

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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

9 authors at 3 institutions in 1 country.

Melissa L SinkusDepartment of Psychiatry, University of Colorado at Denver, Denver, CO 80045, USA.
Michael J Lee
Judith Gault
Judith Logel
Margaret Short
Robert Freedman
Susan L Christian
Jennifer Lyon
Sherry Leonard
University of Colorado Denver · USUniversity of Chicago · USAppalachian College of Pharmacy · US

Funding

Development of Psychopathology, Psychobiology, & BehaviorT32MH015442 · NIMH · UNIVERSITY OF COLORADO DENVER · PI JASON R TREGELLAS · 1985 to 2026
$10.2M
Regulation of Alpha 7 Nicotinic Receptor Assembly in Human SmokersR01DA009457 · NIDA · UNIVERSITY OF COLORADO DENVER · PI LEONARD, SHERRY · 1995 to 2011
$2.8M
Early experience and low 5-HT markers in alcohol abuseR01AA013973 · NIAAA · UNIVERSITY OF COLORADO DENVER · PI LAUDENSLAGER, MARK L. · 2004 to 2009
$2.4M
Regulation of the Human a7 Nicotinic Receptor Gene in SchizophreniaR01MH081177 · NIMH · UNIVERSITY OF COLORADO DENVER · PI LEONARD, SHERRY · 2007 to 2011
$1.7M
NIAAA NIH HHS AA013973NIAAA NIH HHS R01 AA013973NIDA NIH HHS DA09457NIDA NIH HHS R01 DA009457NIMH NIH HHS MH81177NIMH NIH HHS R01 MH081177NIMH NIH HHS T32 MH015442NIMH NIH HHS T32 MH15442
6 · The paper itself

Abstract

Multiple genetic linkage studies support the hypothesis that the 15q13-14 chromosomal region contributes to the etiology of schizophrenia. Among the putative candidate genes in this area are the alpha7 nicotinic acetylcholine receptor gene (CHRNA7) and its partial duplication, CHRFAM7A. A large chromosomal segment including the CHRFAM7A gene locus, but not the CHRNA7 locus, is deleted in some individuals. The CHRFAM7A gene contains a polymorphism consisting of a 2 base pair (2 bp) deletion at position 497-498 bp of exon 6. We employed PCR-based methods to quantify the copy number of CHRFAM7A and the presence of the 2 bp polymorphism in a large, multi-ethnic population. The 2 bp polymorphism was associated with schizophrenia in African Americans (genotype p=0.005, allele p=0.015), and in Caucasians (genotype p=0.015, allele p=0.009). We conclude that the presence of the 2 bp polymorphism at the CHRFAM7A locus may have a functional significance in schizophrenia.

Indexed as

Allelesalpha7 Nicotinic Acetylcholine ReceptorBase SequenceBlack or African AmericanBlotting, SouthernChromosomes, Human, Pair 15FemaleGene DosageGenetic Predisposition to DiseaseGenotypeHispanic or LatinoHumansIn Situ Hybridization, FluorescenceMalePatient SelectionPolymorphism, Geneticalpha7 Nicotinic Acetylcholine ReceptorChrna7 protein, humanReceptors, Nicotinic

Identifiers

PMID19631623
PMCPMC2747474
OpenAlexW1971784543

What OpenQuestion holds

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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.