Evidence map›Paper›PMID 27829443›Full record

SynthesisBehavioral and brain functions : BBF2016

The role of C957T, TaqI and Ser311Cys polymorphisms of the DRD2 gene in schizophrenia: systematic review and meta-analysis.

Thelma Beatriz González-Castro, Yazmín Hernández-Díaz, Isela Esther Juárez-Rojop, María Lilia López-Narváez, Carlos Alfonso Tovilla-Zárate, Alma Genis-Mendoza, Mariela Alpuin-Reyes

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Behavioral and brain functions : BBF, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
2.8field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Review
  7. Pharmacogenetics of Addiction Therapy.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  8. Genetic risks of schizophrenia identified in a matched case-control study.European archives of psychiatry and clinical neuroscience · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
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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

7 authors at 2 institutions in 1 country.

Thelma Beatriz González-CastroDivisión Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, Mexico.
Yazmín Hernández-DíazDivisión Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, Mexico.
Isela Esther Juárez-RojopDivisión Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico.
María Lilia López-NarváezSecretaría de Salud, Hospital General de Yajalón, Yajalón, Chiapas, Mexico.
Carlos Alfonso Tovilla-ZárateDivisión Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Ranchería Sur, Cuarta Sección, C.P. 86650, Comalcalco, Tabasco, Mexico. alfonso_tovillaz@yahoo.com.mx.
Alma Genis-MendozaSecretaría de Salud, Instituto Nacional de Medicina Genómica (INMEGEN), Servicios de Atención Psiquiátrica (SAP), Ciudad de México, Mexico.
Mariela Alpuin-ReyesDivisión Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico.
Universidad Juárez Autónoma de Tabasco · MXSecretaria de Salud · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe association between the dopamine D2 receptor (DRD2) gene and schizophrenia has been studied though no conclusive outcomes have been attained. The aim of this study was to perform a systematic review and meta-analysis to explore the relation between three polymorphisms of the DRD2 gene (C957T, TaqI and Ser311Cys) and schizophrenia.

methodsThe search was made in PubMed and EBSCO databases (up to February 2016). The systematic review included 34 case-control association studies (34 for C957T, 16 for TaqI and 36 for Ser311Cys). The association analysis comprised the allelic, additive, dominant, and recessive genetic models. The meta-analysis was performed following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement.

resultsThe meta-analysis showed that TaqI (additive model: OR 0.57, 95% CI 0.30-1.14) and C957T (additive model: OR 0.75, 95% OR 0.58-0.97, recessive model: OR 0.79, 95% CI 0.64-0.98) exert a protective effect against developing schizophrenia. However, the sub-analysis for the C957T variant showed that this polymorphism exhibits a risk factor effect on Chinese individuals (allelic model: OR 1.33, 95% CI 1.04-1.70).

conclusionOur meta-analysis suggests an association of the DRD2 gene and the risk for schizophrenia, given that TaqI and C957T polymorphisms presented a protective effect against schizophrenia, and in the sub-analyses the C957T variant increased the risk for this disorder in the Chinese population.

Indexed as

AllelesCase-Control StudiesGene FrequencyGenetic Association StudiesGenetic Predisposition to DiseaseHumansPolymorphism, Single NucleotideReceptors, Dopamine D2Risk FactorsSchizophreniaDRD2 protein, humanReceptors, Dopamine D2DRD2 geneMeta-analysisPolymorphismSchizophreniaSystematic review

Identifiers

PMID27829443
PMCPMC5101652
OpenAlexW2553875699

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.