A meta-analysis of p53 codon72 polymorphism and the risk for cervical cancer / 西安交通大学学报(医学版)

ABSTRACT

Objective To evaluate relationship between p53 codon72 polymorphism and cervical cancer(CC) by using meta-analysis. Methods Studies from 1998 to 2004 were retrieved through Medline, Elsevier, EBMR, Ovid, CNKI and VIP databases without language limitation. The unpublished data of our study was also included. The inclusion criteria of studies were ① case-control studies associated with p53 codon72 genotype/allele frequencies and CC. ② CC as the outcome of interest. ③ the risk for CC had odds ratio or enough information to calculate it. RevMan4.2 software was applied to process data. Results All studies were analyzed as subgroups according to pathologic histology and race/region. The outcome of CIN of Asia and European population subgroups showed no statistically difference with the control groups. However, in ICC subgroups the frequencies of Arg/Arg genotype were significantly higher than that in the control group(Z=2.43, P=0.01, OR=1.28; Z=2.44, (P=0.01), OR=1.45). Conclusion This study suggests that polymorphism at codon72 of p53 gene is not associated with an increased susceptibility to CIN. However, a slightly increased risk was observed for ICC of Asian and European population subgroups. A possible susceptibility role of p53 codon72 polymorphism at a late carcinogenetic stage of cervical cancer cannot be ruled out.