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Association of Ercc2/Xpd Polymorphisms and the Risk of Head and Neck Carcinoma: A Systematic Review, Meta-Analysis, Trial Sequential Analysis, Network Analysis, and Functional Effects Publisher Pubmed



Imani MM1 ; Ashabi A2 ; Rezaei F3 ; Saffar Shahroudi A4 ; Kashkouli S5 ; Sadeghi E6 ; Sadeghi M6
Authors
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Authors Affiliations
  1. 1. Department of Orthodontics, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran
  2. 2. Students Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
  3. 3. Department of Oral and Maxillofacial Surgery, Kermanshah University of Medical Sciences, Kermanshah, Iran
  4. 4. Dental Research Center, Dentistry Research Institute, Department of Orthodontics, Dental School, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Department of Prosthodontics, Dental School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  6. 6. Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran

Source: BMC Oral Health Published:2025


Abstract

Objectives and aims: The combination of genetic and environmental factors may contribute to the carcinogenesis of HNC. Despite the reported associations between xeroderma pigmentosum group D (XPD) polymorphisms and HNC, the results have been inconsistent, with different studies reporting varying results. Therefore, our aim is to assess the association of three XPD polymorphisms (rs13181, rs1799793, and rs238406) in a comprehensive meta-analysis. Materials and methods: An exhaustive literature review was performed across several databases, including PubMed, Web of Science, Scopus, and Cochrane Library, up to November 18, 2023, without any restrictions. The effect sizes were presented as the odds ratio (OR) with a 95% confidence interval (CI). Results: Thirty-nine articles including 56 studies were entered into the meta-analysis. Evaluating rs13181, rs1799793, and rs238406 polymorphisms in five genetic models, just significant associations were found for rs1799793 polymorphism in heterozygous and dominant models. The findings reported that the ethnicity and the cancer subtype for rs13181, the ethnicity, the sample size, and the control source for rs1799793, and the ethnicity and the control source for rs238406 polymorphisms were effective factors in the pooled results. Trial sequential analysis suggested that the studies included an insufficient number of individuals. Sensitivity analysis reported stability of pooled results. The XPD protein variants were predicted to be benign. Conclusions: The study reveals a significant association between the rs1799793 polymorphism and HNC, but not rs13181 and rs238406 polymorphisms. Future studies should also aim to minimize the impact of confounding factors and heterogeneity to ensure more accurate results. © The Author(s) 2025.
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