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CYP2E1 polymorphisms and nasopharyngeal carcinoma risk: a meta-analysis

  • Rhinology
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Abstract

The cytochrome P450 2E1 (CYP2E1) polymorphisms have been implicated in susceptibility to nasopharyngeal carcinoma (NPC). However, the results are inconsistent. The aim of this meta-analysis is to evaluate the association between the CYP2E1 polymorphisms and NPC risk. All eligible case–control studies published up to April 4, 2016 were identified by searching PubMed, Web of Science, CNKI, Wanfang and Weipu databases. The NPC risk associated with the CYP2E1 polymorphism was estimated for each study by odds ratios (OR) together with its 95 % confidence interval (CI), respectively. Seven case–control studies were included. Of those, there were seven studies (1302 cases and 1319 controls) for RsaI/PstI polymorphism and three studies (732 cases and 642 controls) for DraI polymorphism. Overall, a significant association was found for RsaI/PstI polymorphism under recessive and homozygote comparison models (OR = 2.72, 95 % CI 1.73–4.25; OR = 2.64, 95 % CI 1.68–4.16, respectively), while there was no significant association for RsaI/PstI polymorphism under other two genetic models. When stratified by ethnicity, similar results were observed between them. As for DraI polymorphism, we also observed a significant association under recessive and homozygote comparison models, but not for the other two models. This meta-analysis suggests that the CYP2E1 polymorphisms contributed to the susceptibility of NPC, especially in Asian populations.

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Authors and Affiliations

  1. Department of Otolaryngology, Liaocheng People’s Hospital, 67 Dongchangxi Road, Liaocheng, 252000, Shandong, China

    Keqing Yao, Haiping Qin, Lili Gong & Lianqing Li

  2. Department of Ophthalmology, Liaocheng People’s Hospital, Liaocheng, 252000, Shandong, China

    Ran Zhang

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  1. Keqing Yao
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  2. Haiping Qin
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  3. Lili Gong
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  4. Ran Zhang
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  5. Lianqing Li
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Correspondence to Lili Gong.

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Yao, K., Qin, H., Gong, L. et al. CYP2E1 polymorphisms and nasopharyngeal carcinoma risk: a meta-analysis. Eur Arch Otorhinolaryngol 274, 253–259 (2017). https://doi.org/10.1007/s00405-016-4236-6

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  • DOI: https://doi.org/10.1007/s00405-016-4236-6

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