Evidence map›Paper›PMID 23932573›Full record

ArticleJournal of psychiatric research2013

Dopaminergic gene polymorphisms and cognitive function in a north Indian schizophrenia cohort.

Prachi Kukshal, Venkat Chowdari Kodavali, Vibhuti Srivastava, Joel Wood, Lora McClain, Triptish Bhatia, A M Bhagwat, Smita Neelkanth Deshpande, Vishwajit Laxmikant Nimgaonkar, B K Thelma

Open access · greenAbstract read
In one paragraph

Article in Journal of psychiatric research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 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

10 authors at 4 institutions in 2 countries.

Prachi KukshalDepartment of Genetics, University of Delhi South Campus, Benito Juarez Road, New Delhi 110 021, India; C. B. Patel Research Centre, Vile Parle (West), Mumbai, India. Electronic address: prachi_7@yahoo.com.
Venkat Chowdari Kodavali
Vibhuti Srivastava
Joel Wood
Lora McClain
Triptish Bhatia
A M Bhagwat
Smita Neelkanth Deshpande
Vishwajit Laxmikant Nimgaonkar
B K Thelma
University of Pittsburgh · USShri Vile Parle Kelavani Mandal · INThe University of Texas MD Anderson Cancer Center · USUniversity of Delhi · IN

Funding

A Neurobehavioral Family Study of SchizophreniaR01MH063480 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI NIMGAONKAR, VISHWAJIT LAXMIKANT · 2001 to 2018
$6.1M
Psychiatric research infrastructure for intervention and implementation in India – TEAMSD43TW009114 · FIC · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Smita N Deshpande, Mary Elizabeth Hawk · 2014 to 2026
$3.2M
Genetic Susceptibility in SchizophreniaR01MH056242 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI NIMGAONKAR, VISHWAJIT LAXMIKANT · 2002 to 2007
$2.9M
Training Program for Psychiatric Genetics in IndiaD43TW006167 · FIC · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI NIMGAONKAR, VISHWAJIT LAXMIKANT · 2002 to 2006
$1.7M
GENETIC SUSCEPTIBILITY IN SCHIZOPHRENIAR10MH056242 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI NIMGAONKAR, VISHWAJIT LAXMIKANT · 1997 to 2001
$1.2M
Tri National Training Program in Psychiatric GeneticsD43TW008302 · FIC · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MANSOUR, HADER A., NIMGAONKAR, VISHWAJIT LAXMIKANT · 2009 to 2013
$542k
FIC NIH HHS D43 TW006167FIC NIH HHS D43 TW008302FIC NIH HHS D43TW008302FIC NIH HHS D43 TW009114FIC NIH HHS D43TW06167NIMH NIH HHS MH56242NIMH NIH HHS MH63480NIMH NIH HHS R01 MH056242NIMH NIH HHS R01 MH063480NIMH NIH HHS R10 MH056242
6 · The paper itself

Abstract

backgroundAssociations of polymorphisms from dopaminergic neurotransmitter pathway genes have mostly been reported in Caucasian ancestry schizophrenia (SZ) samples. As studies investigating single SNPs with SZ have been inconsistent, more detailed analyses utilizing multiple SNPs with the diagnostic phenotype as well as cognitive function may be more informative. Therefore, these analyses were conducted in a north Indian sample.

methodsIndian SZ case-parent trios (n = 601 families); unscreened controls (n = 468) and an independent set of 118 trio families were analyzed. Representative SNPs in the Dopamine D3 receptor (DRD3), dopamine transporter (SLC6A3), vesicular monoamine transporter 2 (SLC18A2), catechol-o-methyltransferase (COMT) and dopamine beta-hydroxylase (DBH) were genotyped using SNaPshot/SNPlex assays (n = 59 SNPs). The Trail Making Test (TMT) was administered to a subset of the sample (n = 260 cases and n = 302 parents).

resultsEight SNPs were nominally associated with SZ in either case-control or family based analyses (p < 0.05, rs7631540 and rs2046496 in DRD3; rs363399 and rs10082463 in SLC18A2; rs4680, rs4646315 and rs9332377 in COMT). rs6271 at DBH was associated in both analyses. Haplotypes of DRD3 SNPs incorporating rs7631540-rs2134655-rs3773678-rs324030-rs6280-rs905568 showed suggestive associations in both case-parent and trio samples. At SLC18A2, rs10082463 was nominally associated with psychomotor performance and rs363285 with executive functions using the TMT but did not withstand multiple corrections.

conclusionsSuggestive associations with dopaminergic genes were detected in this study, but convincing links between dopaminergic polymorphisms and SZ or cognitive function were not observed.

Indexed as

Case-Control StudiesCatechol O-MethyltransferaseCognition DisordersCohort StudiesDopamine Plasma Membrane Transport ProteinsFamily HealthFemaleGenetic Association StudiesGenetic Predisposition to DiseaseGenotypeHumansIndiaLinkage DisequilibriumMalePolymorphism, Single NucleotideReceptors, Dopamine D3Catechol O-MethyltransferaseDopamine Plasma Membrane Transport ProteinsDRD3 protein, humanReceptors, Dopamine D3SLC18A2 protein, humanSLC6A3 protein, humanVesicular Monoamine Transport ProteinsAssociationCognitionDopamine genesHaplotypesSchizophreniaSNPs

Identifiers

PMID23932573
PMCPMC3831060
OpenAlexW2151398805

What OpenQuestion holds

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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.