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Gynecology

Vaginal Microbiota # 16

Gynecology
Gynecology

By Pr. Satu Pekkala
Academy of Finland Research Fellow, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland

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Microbiota 16 vaginal microbiota

About this article

Created 05 October 2022
Updated 06 October 2022

GONORRHEA IN WOMEN: A LINK BETWEEN VAGINAL MICROBIOTA AND SYMPTOMS?

Lovett A, Seña AC, Macintyre AN, et al. Cervicovaginal Microbiota Predicts Neisseria gonorrhoeae Clinical Presentation. Front Microbiol 2022; 12: 790531.

Each year, nearly 90 million cases of gonorrhea are reported worldwide. In women, infection of the lower genital tract by Neisseria gonorrhoeae has highly variable consequences, from no symptoms at all to cervicitis. Although the factors behind this variability are not known, the cervico-vaginal microbiota may be involved. In fact, a team has recently shown that the cervico- vaginal microbiota predicts the clinical presentation of gonorrhea in women.
These are the results of a pilot study in the US on 19 patients infected with N. gonorrhoeae, 10 of whom were symptomatic and 9 asymptomatic. Most of these patients were African American, a population whose microbiota is more frequently low in lactobacilli than that of Caucasian women. Neisseria spp. accounted for only 0.24% of the bacteria present in all 19 patients, whether symptomatic or asymptomatic. Half of the patients in each group also had co-infections with Chlamydia trachomatis and/or Trichomonas vaginalis.
The cervico-vaginal microbiota of the asymptomatic patients with no co-infection more frequently contained microbial communities dominated by lactobacilli (92.2% of bacteria on average) than that of the symptomatic patients with no co-infection (21.6%).
In contrast, the symptomatic women had microbial communities characterized by more diverse and heterogenous bacterial taxa. They were composed of a mixture of anaerobic bacteria associated with bacterial vaginosis (BV): Prevotella, Sneathia, Mycoplasma hominis and Bacterial Vaginosis- Associated Bacterium-1 (BVAB1) / Candidatus Lachnocurva vaginae.
These results are merely those of a pilot study based on a small sample. This is a crucial first step, but further studies are needed to evaluate the potentially protective effect against N. gonorrhoeae infection of a Lactobacillus-dominated vaginal microbiota.

Tags
Vaginal microbiota Vaginal flora Lactobacillus Gonorrhea Gynecology

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    Created 05 October 2022
    Updated 06 October 2022

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