Evidence map›Paper›PMID 27020768›Full record

SynthesisNeuromolecular medicine2016

The Role of a Catechol-O-Methyltransferase (COMT) Val158Met Genetic Polymorphism in Schizophrenia: A Systematic Review and Updated Meta-analysis on 32,816 Subjects.

Thelma Beatriz González-Castro, Yazmin Hernández-Díaz, Isela Esther Juárez-Rojop, María Lilia López-Narváez, Carlos Alfonso Tovilla-Zárate, Ana Fresan

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Neuromolecular medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 5 pooled it
–field-weighted citation impact
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

36 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  6. Article
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  8. Review
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  14. The inconsistent mediating effect of catecholFrontiers in psychiatry · 2022
    Article
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  16. Article
  17. Genetic risks of schizophrenia identified in a matched case-control study.European archives of psychiatry and clinical neuroscience · 2021
    Article
  18. Review
  19. Review
  20. 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

6 authors.

Thelma Beatriz González-CastroDivisión Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, Mexico.
Yazmin 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-NarváezHospital General de Yajalón, Secretaría de Salud, 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.
Ana FresanSubdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico, D. F., Mexico.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An association between a catechol-O-methyltransferase (COMT) Val156Met (rs4680) polymorphism and schizophrenia has been reported in the literature, although no conclusive outcomes have been attained. The aim of this study was to evaluate the association of the COMT Val108/158Met polymorphism with schizophrenia in a systematic review and meta-analysis. We performed a keyword search on PubMed and EBSCO databases. All English language case-control studies published up to April 2015 were selected. A total of 67 studies were selected for inclusion. The genotype distribution of subjects with schizophrenia was compared with healthy control subjects, using allelic, additive, dominant and recessive models. The pooled results from the meta-analysis (15,565 cases and 17,251 healthy subjects) after the elimination of heterogeneity showed an association between COMT Val108/158Met and schizophrenia [recessive model: OR 1.08 CI 95 % (1.01-1.15)]. We conducted subgroup analyses according to ethnicity. An association was observed in our Caucasian population in the additive model [OR 1.21 CI 95 % (1.06-1.37)] and in the recessive model [OR 1.21 CI 95 % (1.11-1.32)], but not in the allelic or dominant models. However, when we analysed our Asian population after the elimination of heterogeneity, no evidence of a significant association was found in any of the genetic models. Our analyses indicate that there is an association between COMT Val108/158Met and schizophrenia in the general population. Furthermore, in Caucasian populations, this risk could be increased.

Indexed as

Genetic Predisposition to DiseasePolymorphism, GeneticCase-Control StudiesCatechol O-MethyltransferaseGenotypeHumansSchizophreniaCatechol O-MethyltransferaseCOMT protein, humanCOMTGeneMeta-analysisSchizophrenia

Identifiers

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Registered trials

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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.