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Modulation of vaginal immune response among pregnant women with bacterial vaginosis by Trichomonas vaginalis, Chlamydia trachomatis, Neisseria gonorrhoeae, and yeast
Journal article   Open access   Peer reviewed

Modulation of vaginal immune response among pregnant women with bacterial vaginosis by Trichomonas vaginalis, Chlamydia trachomatis, Neisseria gonorrhoeae, and yeast

Sabina Cauci and Jennifer Flatow Culhane
American journal of obstetrics and gynecology, v 196(2), pp 133.e1-133.e7
2007
DOI: https://doi.org/10.1016/j.ajog.2006.08.033
PMID: 17306653
url
http://www.ajog.org/article/S0002937806011719/pdfView
Published, Version of Record (VoR) Open
url
https://doi.org/10.1016/j.ajog.2006.08.033View
Published, Version of Record (VoR) Open

Abstract

adverse pregnancy outcome bacterial vaginosis interleukin-1β interleukin-8 prolidase sialidase Trichomonas vaginalis vaginal neutrophils
This study was undertaken to examine the influence of coinfections on vaginal innate and adaptive immunity, and microbial enzyme activities of pregnant women with bacterial vaginosis (BV). The population consisted of 265 singleton pregnant women in early gestation (<20 weeks) with BV (Nugent 7-10) who had vaginal fluid collected for measurement of interleukin-1β (IL-1β) and IL-8 concentrations, number of neutrophils, immunoglobulin A against Gardnerella vaginalis (anti-Gvh IgA), and activities of microbial sialidase and prolidase. Among women with BV, median levels of vaginal IL-1β (4-fold, P = .005), IL-8 (4-fold, P < .001), and neutrophils (6-fold, P = .013) were greatly increased in women with T vaginalis with respect to women without any coinfection. Yeast increased the level of IL-8 (5-fold, P < .001), but not IL-1β ( P = .239) and neutrophils ( P = .060). Chlamydia trachomatis and Neisseria gonorrhoeae had no effect on vaginal cytokines. None of the coinfections influenced vaginal anti-Gvh IgA, sialidase and prolidase activities. The strong proinflammatory cytokine induction by T vaginalis may contribute to the observed increase in preterm birth among BV positive women coinfected with T vaginalis treated with metronidazole.

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