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Lack of Significant Effects of Chlamydia trachomatis Infection on Cervical Adenocarcinoma Risk: Nested Case-Control Study.


ABSTRACT: BACKGROUND:A role of Chlamydia trachomatis in HPV-induced cervical carcinogenesis has been reported for cervical cancer but studies on cervical adenocarcinoma are limited. METHODS:A total of 1,553 cervical smears taken up to 26 years before diagnosis in a large population-based nested case-control study of cervical adenocarcinoma (AC, 132 cases with matched controls), and adenocarcinoma in situ (AIS, 159 cases with matched controls) were tested for C. trachomatis and HPV DNA by a type-specific PCR bead-based multiplex genotyping (TS-MPG) assay. RESULTS:Only 1.7% of samples were positive for C. trachomatis, with no significant differences between AC/AIS cases and controls. HPV-positivity was detected in 49.3% of C. trachomatis-negative and 65.4% C. trachomatis-positive samples, respectively. CONCLUSIONS:A large prospective study did not find any risk for cervical adenocarcinoma and/or AIS conferred by C. trachomatis infection. IMPACT:C. trachomatis appears not to be involved in cervical adenocarcinomas.

SUBMITTER: Smelov V 

PROVIDER: S-EPMC4881944 | BioStudies | 2016-01-01T00:00:00Z

REPOSITORIES: biostudies

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