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Gynecology

Vaginal microbiota #10

Endometriosis

By Pr. Markku Voutilainen
Turku University Faculty of Medicine; Turku University Hospital, Department of Gastroenterology, Turku, Finland

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About this article

Created 24 August 2021
Updated 03 March 2022

Vaginal microbiome may predict the severity of endometriosis 

Perrotta AR, Borrelli GM, Martins CO, et al. The vaginal microbiome as a toll to predict rASRM stage of disease in endometriosis: a pilot study. Reprod Sci. 2020.

Could gut and vaginal microbiomes predict the stage of endometriosis? According to this study, no differences were detected between samples from patients and healthy control subjects for follicular and menstrual phases of the menstrual cycle. At an individual level, the distribution of community state types differed significantly between the two menstrual phases. Among patients, Operational Taxonomic Units (OTU) of genus Anaerococcus (notably A. lactolyticus and A. degenerii) significantly differed between disease stages 1-2 and stages 3-4 (rASRN - revised American Society for Reproductive Medicine - classification). Authors conclude that vaginal microbiota may predict the stage of the disease

Vaginal microbiota and cervical cancer 

Pourmollaei S, Barzegari A, Farshbaf-Khalili A, et al. Anticancer effect of bacteria on cervical cancer: molecular aspects and therapeutic implications. Life Sci 2020.

Vaginal dysbiosis may be linked to the development, progression and stability of cervical cancer (CC), but it is unclear whether the relationship between the two is causal or correlative. To find out if cervicovaginal bacteria also have an anticancer effect, the use of microorganisms in the treatment of cancer (especially CC) was discussed in this article: probiotics, bacteria-based immunotherapy, bacterial toxins and spores, vectors in gene therapy, and inhibitors of tumor angiogenesis. Some bacteria inhibit CC by activating NK cells and dendritic cell maturation. Other mechanisms are production of cytotoxic compounds, regulating immune cell differentiation, and inhibiting cancer cell migration. In conclusion, genetically engineered bacteria may be an effective treatment for CC in the future. Larger sample size studies are needed to assess this option.

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    Microbiota 10 - July 2020
    • Overview
      • Gut microbiota and Clostridioides difficile
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      • The Mediterranean diet alters the gut microbiota in the elderly, reduces frailty and improves health: study NU-AGE
      • Metagenomics of the faecal virome: cumulative effect of the quantity of gluten and enteroviruses risk of coeliac disease autoimmunity in predisposed children – the TEDDY study
    • Congress review
      • Gut Microbiota For Health World Summit 2020
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      • Vaginal microbiota #10
      • Skin microbiota
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    Created 24 August 2021
    Updated 03 March 2022

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    Endometriosis

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    Skin microbiota
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    Microbiota 10 - July 2020

    Overview

    Gut microbiota and Clostridioides difficile

    Commented articles

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    Congress review

    Gut Microbiota For Health World Summit 2020

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