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Title: Single nucleotide polymorphisms in DNA repair genes and the risk of laryngeal cancer: A meta-analysis. Author: Li F, Wang J, Chen M. Journal: Biomed Pharmacother; 2016 Mar; 78():92-100. PubMed ID: 26898429. Abstract: Laryngeal cancer is the most common type of head and neck cancer with poor prognosis and high relapse rate. Several genes involved in DNA repair pathways have been identified for their potential role in laryngeal cancer risk. However, the results remain inconclusive. The aim of this study was to investigate the association between polymorphisms of XRCC1 Arg399Gln, XRCC3 Thr241Met, and XPD Lys751Gln and laryngeal cancer risk. Relevant case-control studies published between 2000 and 2015 were retrieved. The odds ratio (OR) with its 95% confidence interval (CI) were employed to calculate the strength of correction. Finally, total 16 articles (8 for XRCC1 Arg399Gln variant, 8 for XRCC3 Thr241Met variant and 7 for XPD Lys751Gln variant) were screened out, including 2242 laryngeal cancer cases and 3811 matched controls. Overall, our results found that only AA genotype of the XRCC1 gene Arg399Gln polymorphism under the homozygous model was associated with increased the risk of patients with laryngeal cancer (AA vs. GG: OR=1.29, 95% CI=1.00-1.65, P=0.05). This significant relationship was not detected between XRCC3 Thr241Met, XPD Lys751Gln polymorphisms and laryngeal cancer risk (P>0.05). In conclusions, our results suggested that XRCC1 gene Arg399Gln polymorphism might be a risk factor for laryngeal cancer. Future studies with large-scales, more ethnicities are still needed to further evaluate the role of these three genes mutations in laryngeal cancer susceptibility.[Abstract] [Full Text] [Related] [New Search]