Evidence map›Paper›PMID 40618051›Full record

SynthesisBMC oral health2025

Glutathione S-transferase M1 and T1 null polymorphisms and risk of oral submucous fibrosis: a meta-analysis of South Asian populations.

Paria Motahari, Negin Neshanifard

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
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

2 authors.

Paria MotahariDepartment of Oral and Maxillofacial Medicine, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran. paria.motahari@yahoo.com.
Negin NeshanifardDepartment of Oral and Maxillofacial Medicine, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOral submucous fibrosis (OSMF) is a precancerous condition prevalent in individuals who habitually consume areca nut products. While environmental risk factors play a significant role in OSMF, genetic predisposition-particularly involving glutathione S-transferase (GST) gene deletions-may influence susceptibility. This meta-analysis aimed to evaluate the association between GSTM1-null and GSTT1-null genotypes and the risk of OSMF.

methodsRelevant databases were systematically searched up to April 2025. Two reviewers independently extracted data, and analyses were performed using Meta Analyst software. Forest plots presented pooled odds ratios (OR) with 95% confidence intervals (CI). Heterogeneity, sensitivity, and publication bias were assessed using funnel plots and Egger's tests.

resultsTwelve studies involving 4484 participants (1925 cases, 2559 controls) were included. The GSTM1-null genotype significantly increased OSMF risk (OR = 1.46, 95% CI: 1.08-1.97), as did the GSTT1-null genotype (OR = 1.97, 95% CI: 1.08-3.60). Sensitivity analyses confirmed robust findings, and publication bias was minimal. Subgroup analyses revealed that larger sample sizes and higher areca nut exposure amplified the observed associations.

conclusionsThis meta-analysis underscores the role of GST polymorphisms in OSMF pathogenesis, highlighting their potential in risk stratification and early detection strategies. Future research should explore gene-environment interactions and include multi-ethnic cohorts to generalize findings.

trial registrationCRD42024628773.

Indexed as

Glutathione TransferaseOral Submucous FibrosisPolymorphism, GeneticArecaGenetic Predisposition to DiseaseGenotypeHumansRisk FactorsSouth Asian Peopleglutathione S-transferase T1Glutathione TransferaseGlutathione-S-transferase M1Glutathione-S-transferase T1Oral submucous fibrosisPolymorphism, Genetic

Identifiers

PMID40618051
PMCPMC12228242

What OpenQuestion holds

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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.