To investigate the relationship between local immune status of vagina and the occurrence of disease in patients with cervicitis. ELISA were used to detect the level of interleukin (IL)-8 and tumor necrosis factor (TNF)alpha in vaginal douche of patients with cervicitis due to ureaplasma urealyticum, mycoplasma hominis, chlamydia trachomatis, neisseria gonorrhoeae and cervical erosion. Compared with the control group, the level of IL-8 in vaginal douche of patients with mycoplasma hominis cervicitis, chlamydia trachomatis cervicitis and neisseria gonorrhoeae cervicitis was significantly higher and there was significant difference ng/L: 371 +/- 34, 369 +/- 31, 339 +/- 36, vs 341 +/- 32, 338 +/- 33, 316 +/- 24, (all P < 0.01). Comparing the level of IL-8 in vaginal douche of patients with ureaplasma urealyticum cervicitis and cervical erosion with that of control group, there was no statistical difference (all P > 0.05). The level of TNF-alpha in vaginal douche of each group was remarkably higher than that of control group except for patients with cervical erosion. And statistically significant difference was found between them (all P < 0.01). With regards to the pathogenesis of cervicitis, local immune mechanism of vagina plays an important role in the occurrence of cervicitis. The role of IL-8 in pathogenesis of mycoplasma hominis cervicitis, chlamydia trachomatis cervicitis and neisseria gonorrhoeae cervicitis is likely to be more important.
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