Evidence map›Paper›PMID 21835309›Full record

ArticleAmerican journal of human genetics2011

GWAS findings for human iris patterns: associations with variants in genes that influence normal neuronal pattern development.

Mats Larsson, David L Duffy, Gu Zhu, Jimmy Z Liu, Stuart Macgregor, Allan F McRae, Margaret J Wright, Richard A Sturm, David A Mackey, Grant W Montgomery and 2 more

Open access · bronzeAbstract readTwin Study
In one paragraph

Article in American journal of human genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 6 pooled it
1.3field-weighted citation impact, top 20% 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

40 citing papers in PubMed, 6 syntheses or guidelines pooled it, 76 citations in OpenAlex.

  1. Pooled it
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  12. Key variants via the Alzheimer's Disease Sequencing Project whole genome sequence data.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
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  20. Searching for improvements in predicting human eye colour from DNA.International journal of legal medicine · 2021
    Article
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

12 authors at 3 institutions in 2 countries.

Mats LarssonQueensland Institute of Medical Research, Brisbane, Australia. mats.larsson@oru.se
David L Duffy
Gu Zhu
Jimmy Z Liu
Stuart Macgregor
Allan F McRae
Margaret J Wright
Richard A Sturm
David A Mackey
Grant W Montgomery
Nicholas G Martin
Sarah E Medland
QIMR Berghofer Medical Research Institute · AULions Eye Institute · AUThe University of Queensland · AU

Funding

Molecular Epidemiology of Alcoholism 3 - EDAC FamiliesR01AA013321 · NIAAA · WASHINGTON UNIVERSITY · PI HEATH, ANDREW C. · 2001 to 2005
$4.3M
Molecular Epidemiology of Alcoholism 2- Big SibshipsR01AA013320 · NIAAA · WASHINGTON UNIVERSITY · PI HEATH, ANDREW C. · 2003 to 2007
$3.1M
Genetic Epidemiology of Pathological GamblingR01MH066206 · NIMH · UNIVERSITY OF MISSOURI-COLUMBIA · PI SLUTSKE, WENDY S · 2003 to 2007
$2.5M
Molecular Epidemiology of Alcoholism 1: Candidate GeneR01AA013326 · NIAAA · QUEENSLAND INSTITUTE OF MEDICAL RESEARCH · PI MARTIN, NICHOLAS G · 2001 to 2005
$2.1M
VARIATION IN THE EFFECTS OF ALCOHOL ON LIVER FUNCTIONR01AA014041 · NIAAA · QUEENSLAND INSTITUTE OF MEDICAL RESEARCH · PI WHITFIELD, JOHN B · 2003 to 2007
$2.1M
PERSISTENCE &CHANGE IN DRINKING HABITS: TWIN STUDYR01AA007535 · NIAAA · WASHINGTON UNIVERSITY · PI HEATH, ANDREW C. · 1989 to 1996
–
NIAAA NIH HHS AA10248NIAAA NIH HHS AA13320NIAAA NIH HHS AA13321NIAAA NIH HHS AA13326NIAAA NIH HHS AA14041NIAAA NIH HHS R01 AA007535NIAAA NIH HHS R01 AA013320NIAAA NIH HHS R01 AA013321NIAAA NIH HHS R01 AA013326NIAAA NIH HHS R01 AA014041NIMH NIH HHS MH66206NIMH NIH HHS R01 MH066206
6 · The paper itself

Abstract

Human iris patterns are highly variable. The origins of this variation are of interest in the study of iris-related eye diseases and forensics, as well as from an embryological developmental perspective, with regard to their possible relationship to fundamental processes of neurodevelopment. We have performed genome-wide association scans on four iris characteristics (crypt frequency, furrow contractions, presence of peripupillary pigmented ring, and number of nevi) in three Australian samples of European descent. Both the discovery (n = 2121) and replication (n = 499 and 73) samples showed evidence for association between (1) crypt frequency and variants in the axonal guidance gene SEMA3A (p = 6.6 × 10(-11)), (2) furrow contractions and variants within the cytoskeleton gene TRAF3IP1 (p = 2.3 × 10(-12)), and (3) the pigmented ring and variants in the well-known pigmentation gene SLC24A4 (p = 7.6 × 10(-21)). These replicated findings individually accounted for around 1.5%-3% of the variance for these iris characteristics. Because both SEMA3A and TRAFIP1 are implicated in pathways that control neurogenesis, neural migration, and synaptogenesis, we also examined the evidence of enhancement among such genes, finding enrichment for crypts and furrows. These findings suggest that genes involved in normal neuronal pattern development may also influence tissue structures in the human iris.

Indexed as

Genome-Wide Association StudyAdolescentAdultAustraliaBody PatterningChildChild, PreschoolEye ColorHumansIrisMiddle AgedNeuronsNevusPhenotypePolymorphism, Single NucleotideReproducibility of Results

Identifiers

PMID21835309
PMCPMC3155193
OpenAlexW2140532392

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.