Hydrogen peroxide producing lactobacilli in women with cervical neoplasia

It is well known that human papillomavirus (HPV) is the main cause of cervical neoplasia, and hydrogen peroxide-producing lactobacilli are the most important microorganisms for maintaining the balance of the vaginal ecosystem. The purpose of our study was to investigate the relationship of hydrogen peroxide-producing lactobacilli, cervical neoplasia and high-risk HPV.

We enrolled 1138 women with abnormal cervical smears or cervicograms who were referred to the department of Obstetrics and Gynecology at Chonnam National University Medical School. In all of them, 1,138 vaginal swabs were collected for the qualitative assay of hydrogen peroxide producing lactobacilli and 150 cervical swabs were used for the HPV hybrid capture II test without regard to the subjects' pregnancy status. In the non-pregnant women, 880 cervical biopsies and/or loop electrosurgical excision procedures were performed for making the histological diagnosis.

There was no significant difference not only between the distribution of H(2)O(2) producing lactobacilli and the cervical histology, but also between the distribution of H(2)O(2) producing lactobacilli and the positivity for high-risk HPV.

Both cervical neoplasia and high-risk HPV may not be influenced by the existence of hydrogen peroxide producing lactobacilli in the vagina.