Evidence map›Paper›PMID 15197400›Full record

Trial reportMolecular psychiatry2004

Replication of 1q42 linkage in Finnish schizophrenia pedigrees.

J Ekelund, W Hennah, T Hiekkalinna, A Parker, J Meyer, J Lönnqvist, L Peltonen

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Molecular psychiatry, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
10.1field-weighted citation impact, top 1% 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

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 185 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
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  5. Mutations in DISC1 alter IPNeuronal signaling · 2021
    Review
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  10. TheOpen biology · 2017
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9 more citing papers are in PubMed but not listed here.

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

7 authors at 4 institutions in 2 countries.

J EkelundNational Public Health Institute, Department of Molecular Medicine, Helsinki, Finland. jbe2102@columbia.edu
W Hennah
T Hiekkalinna
A Parker
J Meyer
J Lönnqvist
L Peltonen
Institute for Molecular Medicine Finland · FIMillennium Engineering and Integration (United States) · USFinnish Foundation for Alcohol Studies · FIUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chromosome 1q has been implicated in the etiology of schizophrenia in several independent studies. However, the peak linkage findings have been dispersed over a large chromosomal region, with negative findings in this region also being reported. Our group has previously observed linkage on chromosome 1q42, maximizing within the DISC1 gene, which has also been implied in the etiology of schizophrenia based on functional studies. In the study presented here, we genotyped 300 polymorphic markers on chromosome 1 using a study sample of 70 families with multiple individuals affected with schizophrenia or related conditions, independent of the study samples in our previous reports. We again found evidence for linkage on 1q42 maximizing within the DISC1 gene (rs1000731, lod=2.70). Further, a haplotype containing the most strongly linked markers showed some evidence of association with the disease. This replicates the previous linkage finding in the same region and constitutes supportive evidence for a susceptibility gene in this region.

Indexed as

Chromosome MappingChromosomes, Human, Pair 1FinlandGene FrequencyGenetic Predisposition to DiseaseHumansLinkage DisequilibriumLod ScoreNerve Tissue ProteinsPedigreePolymorphism, GeneticPsychotic DisordersReproducibility of ResultsSchizophreniaDISC1 protein, humanNerve Tissue Proteins

Identifiers

PMID15197400
OpenAlexW1981819066

What OpenQuestion holds

Textmetadata
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.