IMR Press / EJGO / Volume 39 / Issue 1 / DOI: 10.12892/ejgo4052.2018

European Journal of Gynaecological Oncology (EJGO) is published by IMR Press from Volume 40 Issue 1 (2019). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on as a courtesy and upon agreement with S.O.G.

Original Research
CYP1A1 polymorphisms and cervical cancer risk: a meta-analysis
Hui Chen1, †Ke Yi1, †Liang Zhi Xu1Jie Chen1, *
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1 Department of Gynecology and Obstetrics, The West China Second University Hospital, Sichuan University, Chengdu, China
† Contributed equally.
Eur. J. Gynaecol. Oncol. 2018, 39(1), 84–91;
Published: 10 February 2018

Objective: Cytochrome P4501A1(CYP1A1) may contribute to the development of cervical cancer through affecting the metabolism of estrogen and carcinogens. The current data of connection between the CYP1A1 polymorphisms and cervical cancer risk is not thoroughly acceptable. We conduct a meta-analysis to evaluate whether there is certain correlation between polymorphisms of CYP1A1 and cervical cancer. Materials and Methods: Some eligible case-control studies are expected to be identified from Embase, PubMed and other databases. Pooled odds ratios (ORs) and 95% CIs are calculated in a fixed-effects or random effects model as appropriate. Results: There were 13 case-control studies, including 2374 cases and 2436 controls.. Overall, the pooled results showed that there was a strong connection between cervical cancer and CYP1A1 MspI polymorphism in all models: allele contrast(C vs. T) , OR=1.43,95% CI = 1.11– 1.83; homozygote comparison(CC vs. TT), OR=2.09, 95% CI=1.26–3.48; heterozygote comparison(CT vs. TT), OR=1.48, 95% CI=1.12–1.95; dominant model (CC+CT vs. TT), OR=1.53, 95% CI=1.11–2.10; recessive model(CC vs. CT+TT), OR=1.64, 95% CI= 1.13–2.39). There were also strong associations between cervical cancer and CYP1A1 Ile462Val polymorphism in all models except for the recessive model. Conclusion: Present meta-analyses reveal that both MspI and Ile462Val polymorphisms may be correlated with cervical cancer.
Cytochrome P4501A1(CYP1A1)
cervical cancer
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